(gdb) +thread apply all bt

Thread 64 (LWP 2298):
+bt
#0  0x0000003636edf253 in poll () from /lib64/libc.so.6
#1  0x000000000062d62a in handle_connections_sockets () at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mysqld.cc:6280
#2  0x0000000000634a7d in mysqld_main (argc=74, argv=0x4e31aa8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mysqld.cc:5695
#3  0x0000003636e1ecdd in __libc_start_main () from /lib64/libc.so.6
#4  0x0000000000626c61 in _start ()

Thread 63 (LWP 2301):
+bt
#0  0x0000003636e33ad7 in sigwaitinfo () from /lib64/libc.so.6
#1  0x00000000009a322b in timer_notify_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/mysys/posix_timers.c:78
#2  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#3  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 62 (LWP 2304):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6a9f6 in os_aio_linux_collect (array=0x912fef0, segment=<optimized out>, seg_size=256) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5092
#2  0x0000000000a6b119 in os_aio_linux_handle (global_seg=0, message1=0x14de8d98, message2=0x14de8d90, type=0x14de8d88, space_id=0x14de8d80) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5237
#3  0x0000000000bc15c7 in fil_aio_wait (segment=0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5581
#4  0x0000000000b08448 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:480
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 61 (LWP 2305):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6a9f6 in os_aio_linux_collect (array=0x9122460, segment=<optimized out>, seg_size=256) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5092
#2  0x0000000000a6b119 in os_aio_linux_handle (global_seg=1, message1=0x157e9d98, message2=0x157e9d90, type=0x157e9d88, space_id=0x157e9d80) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5237
#3  0x0000000000bc15c7 in fil_aio_wait (segment=1) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5581
#4  0x0000000000b08448 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:480
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 60 (LWP 2306):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6a9f6 in os_aio_linux_collect (array=0x986eab0, segment=<optimized out>, seg_size=256) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5092
#2  0x0000000000a6b119 in os_aio_linux_handle (global_seg=2, message1=0x161ead98, message2=0x161ead90, type=0x161ead88, space_id=0x161ead80) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5237
#3  0x0000000000bc15c7 in fil_aio_wait (segment=2) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5581
#4  0x0000000000b08448 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:480
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 59 (LWP 2307):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6a9f6 in os_aio_linux_collect (array=0x986eab0, segment=<optimized out>, seg_size=256) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5092
#2  0x0000000000a6b119 in os_aio_linux_handle (global_seg=3, message1=0x16bebd98, message2=0x16bebd90, type=0x16bebd88, space_id=0x16bebd80) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5237
#3  0x0000000000bc15c7 in fil_aio_wait (segment=3) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5581
#4  0x0000000000b08448 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:480
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 58 (LWP 2308):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6a9f6 in os_aio_linux_collect (array=0x986eab0, segment=<optimized out>, seg_size=256) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5092
#2  0x0000000000a6b119 in os_aio_linux_handle (global_seg=4, message1=0x175ecd98, message2=0x175ecd90, type=0x175ecd88, space_id=0x175ecd80) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5237
#3  0x0000000000bc15c7 in fil_aio_wait (segment=4) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5581
#4  0x0000000000b08448 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:480
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 57 (LWP 2309):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6a9f6 in os_aio_linux_collect (array=0x986eab0, segment=<optimized out>, seg_size=256) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5092
#2  0x0000000000a6b119 in os_aio_linux_handle (global_seg=5, message1=0x17fedd98, message2=0x17fedd90, type=0x17fedd88, space_id=0x17fedd80) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5237
#3  0x0000000000bc15c7 in fil_aio_wait (segment=5) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5581
#4  0x0000000000b08448 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:480
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 56 (LWP 2310):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6a9f6 in os_aio_linux_collect (array=0x913db70, segment=<optimized out>, seg_size=256) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5092
#2  0x0000000000a6b119 in os_aio_linux_handle (global_seg=6, message1=0x189eed98, message2=0x189eed90, type=0x189eed88, space_id=0x189eed80) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5237
#3  0x0000000000bc15c7 in fil_aio_wait (segment=6) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5581
#4  0x0000000000b08448 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:480
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 55 (LWP 2311):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6a9f6 in os_aio_linux_collect (array=0x913db70, segment=<optimized out>, seg_size=256) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5092
#2  0x0000000000a6b119 in os_aio_linux_handle (global_seg=7, message1=0x193efd98, message2=0x193efd90, type=0x193efd88, space_id=0x193efd80) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5237
#3  0x0000000000bc15c7 in fil_aio_wait (segment=7) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5581
#4  0x0000000000b08448 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:480
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 54 (LWP 2312):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6a9f6 in os_aio_linux_collect (array=0x913db70, segment=<optimized out>, seg_size=256) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5092
#2  0x0000000000a6b119 in os_aio_linux_handle (global_seg=8, message1=0x19df0d98, message2=0x19df0d90, type=0x19df0d88, space_id=0x19df0d80) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5237
#3  0x0000000000bc15c7 in fil_aio_wait (segment=8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5581
#4  0x0000000000b08448 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:480
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 53 (LWP 2313):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6a9f6 in os_aio_linux_collect (array=0x913db70, segment=<optimized out>, seg_size=256) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5092
#2  0x0000000000a6b119 in os_aio_linux_handle (global_seg=9, message1=0x1a7f1d98, message2=0x1a7f1d90, type=0x1a7f1d88, space_id=0x1a7f1d80) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5237
#3  0x0000000000bc15c7 in fil_aio_wait (segment=9) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5581
#4  0x0000000000b08448 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:480
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 52 (LWP 2314):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a708e3 in os_cond_wait (cond=<optimized out>, fast_mutex=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  0x0000000000a709ab in os_event_wait_low (event=0x953a790, reset_sig_count=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b02afe in srv_redo_log_follow_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:2234
#4  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 51 (LWP 2318):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a706e1 in os_cond_wait_timed (cond=<optimized out>, fast_mutex=<optimized out>, abstime=0x1cff3d60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:177
#2  0x0000000000a70803 in os_event_wait_time_low (event=0x142f2140, time_in_usec=<optimized out>, reset_sig_count=7) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:723
#3  0x0000000000a4efc0 in lock_wait_timeout_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/lock/lock0wait.cc:503
#4  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 50 (LWP 2319):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a706e1 in os_cond_wait_timed (cond=<optimized out>, fast_mutex=<optimized out>, abstime=0x1d9f4d10) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:177
#2  0x0000000000a70803 in os_event_wait_time_low (event=0x953a550, time_in_usec=<optimized out>, reset_sig_count=1) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:723
#3  0x0000000000b02e9f in srv_error_monitor_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:2109
#4  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 49 (LWP 2320):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a706e1 in os_cond_wait_timed (cond=<optimized out>, fast_mutex=<optimized out>, abstime=0x1e3f5d30) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:177
#2  0x0000000000a70803 in os_event_wait_time_low (event=0x953a610, time_in_usec=<optimized out>, reset_sig_count=1) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:723
#3  0x0000000000b0488d in srv_monitor_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:1847
#4  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 48 (LWP 2321):
+bt
#0  0x0000003636ee14f3 in select () from /lib64/libc.so.6
#1  0x0000000000a70fcf in os_thread_sleep (tm=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0thread.cc:255
#2  0x0000000000b01b4c in srv_master_sleep () at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:2834
#3  0x0000000000b05c99 in srv_master_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:2878
#4  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 47 (LWP 2322):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a708e3 in os_cond_wait (cond=<optimized out>, fast_mutex=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  0x0000000000a709ab in os_event_wait_low (event=0x143d89c0, reset_sig_count=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b0c7e5 in sync_array_wait_event (arr=0x90f26c0, index=3) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0arr.cc:433
#4  0x0000000000b0e13b in rw_lock_s_lock_spin (_lock=0x15ca220 <dict_operation_lock>, pass=0, priority_lock=false, high_priority=false, file_name=0xdded98 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc", line=720) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0rw.cc:537
#5  0x0000000000adcbb8 in pfs_rw_lock_s_lock_func (lock=0x15ca220 <dict_operation_lock>, pass=0, file_name=0xdded98 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc", line=720) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0rw.ic:1037
#6  0x0000000000add30d in row_purge_parse_undo_rec (node=0x1aa346e8, undo_rec=<optimized out>, updated_extern=0x1f7f7b8f, thr=0x1aa34628) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:720
#7  0x0000000000ade040 in row_purge (node=0x1aa346e8, undo_rec=0x24fd0f18 "\036^\016\062\002", thr=0x1aa34628) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:859
#8  0x0000000000ade111 in row_purge_step (thr=0x1aa34628) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:942
#9  0x0000000000a97068 in que_thr_step (thr=0x1aa34628) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1115
#10 0x0000000000a9720d in que_run_threads_low (thr=0x1aa34628) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1177
#11 0x0000000000a97390 in que_run_threads (thr=0x1aa34628) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1218
#12 0x0000000000b198f4 in trx_purge (n_purge_threads=4, batch_size=<optimized out>, truncate=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/trx/trx0purge.cc:1251
#13 0x0000000000b000d2 in srv_do_purge (n_threads=4, n_total_purged=0x1f7f7da8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:3126
#14 0x0000000000b015c5 in srv_purge_coordinator_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:3305
#15 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#16 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 46 (LWP 2323):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a708e3 in os_cond_wait (cond=<optimized out>, fast_mutex=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  0x0000000000a709ab in os_event_wait_low (event=0x143d89c0, reset_sig_count=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b0c7e5 in sync_array_wait_event (arr=0x90f26c0, index=4) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0arr.cc:433
#4  0x0000000000b0e13b in rw_lock_s_lock_spin (_lock=0x15ca220 <dict_operation_lock>, pass=0, priority_lock=false, high_priority=false, file_name=0xdded98 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc", line=720) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0rw.cc:537
#5  0x0000000000adcbb8 in pfs_rw_lock_s_lock_func (lock=0x15ca220 <dict_operation_lock>, pass=0, file_name=0xdded98 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc", line=720) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0rw.ic:1037
#6  0x0000000000add30d in row_purge_parse_undo_rec (node=0x135be738, undo_rec=<optimized out>, updated_extern=0x201f8c6f, thr=0x1aa340f0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:720
#7  0x0000000000ade040 in row_purge (node=0x135be738, undo_rec=0x24c12740 "\035\001\016+\003", thr=0x1aa340f0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:859
#8  0x0000000000ade111 in row_purge_step (thr=0x1aa340f0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:942
#9  0x0000000000a97068 in que_thr_step (thr=0x1aa340f0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1115
#10 0x0000000000a9720d in que_run_threads_low (thr=0x1aa340f0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1177
#11 0x0000000000a97390 in que_run_threads (thr=0x1aa340f0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1218
#12 0x0000000000b01883 in srv_task_execute () at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:2975
#13 0x0000000000b019e2 in srv_worker_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:3026
#14 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#15 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 45 (LWP 2324):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a708e3 in os_cond_wait (cond=<optimized out>, fast_mutex=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  0x0000000000a709ab in os_event_wait_low (event=0x143d89c0, reset_sig_count=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b0c7e5 in sync_array_wait_event (arr=0x90f26c0, index=6) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0arr.cc:433
#4  0x0000000000b0e13b in rw_lock_s_lock_spin (_lock=0x15ca220 <dict_operation_lock>, pass=0, priority_lock=false, high_priority=false, file_name=0xdded98 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc", line=720) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0rw.cc:537
#5  0x0000000000adcbb8 in pfs_rw_lock_s_lock_func (lock=0x15ca220 <dict_operation_lock>, pass=0, file_name=0xdded98 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc", line=720) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0rw.ic:1037
#6  0x0000000000add30d in row_purge_parse_undo_rec (node=0x135be978, undo_rec=<optimized out>, updated_extern=0x20bf9c6f, thr=0x135be8b8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:720
#7  0x0000000000ade040 in row_purge (node=0x135be978, undo_rec=0x24c9a520 "\024N\016\004\004", thr=0x135be8b8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:859
#8  0x0000000000ade111 in row_purge_step (thr=0x135be8b8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:942
#9  0x0000000000a97068 in que_thr_step (thr=0x135be8b8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1115
#10 0x0000000000a9720d in que_run_threads_low (thr=0x135be8b8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1177
#11 0x0000000000a97390 in que_run_threads (thr=0x135be8b8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1218
#12 0x0000000000b01883 in srv_task_execute () at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:2975
#13 0x0000000000b019e2 in srv_worker_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:3026
#14 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#15 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 44 (LWP 2325):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a708e3 in os_cond_wait (cond=<optimized out>, fast_mutex=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  0x0000000000a709ab in os_event_wait_low (event=0x143d89c0, reset_sig_count=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b0c7e5 in sync_array_wait_event (arr=0x90f26c0, index=5) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0arr.cc:433
#4  0x0000000000b0e13b in rw_lock_s_lock_spin (_lock=0x15ca220 <dict_operation_lock>, pass=0, priority_lock=false, high_priority=false, file_name=0xdded98 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc", line=720) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0rw.cc:537
#5  0x0000000000adcbb8 in pfs_rw_lock_s_lock_func (lock=0x15ca220 <dict_operation_lock>, pass=0, file_name=0xdded98 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc", line=720) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0rw.ic:1037
#6  0x0000000000add30d in row_purge_parse_undo_rec (node=0x1aa344a8, undo_rec=<optimized out>, updated_extern=0x215fac6f, thr=0x135beaf8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:720
#7  0x0000000000ade040 in row_purge (node=0x1aa344a8, undo_rec=0x24cd6fb0 "\035s\016-\003", thr=0x135beaf8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:859
#8  0x0000000000ade111 in row_purge_step (thr=0x135beaf8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:942
#9  0x0000000000a97068 in que_thr_step (thr=0x135beaf8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1115
#10 0x0000000000a9720d in que_run_threads_low (thr=0x135beaf8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1177
#11 0x0000000000a97390 in que_run_threads (thr=0x135beaf8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1218
#12 0x0000000000b01883 in srv_task_execute () at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:2975
#13 0x0000000000b019e2 in srv_worker_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:3026
#14 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#15 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 43 (LWP 2326):
+bt
#0  0x0000003636ee14f3 in select () from /lib64/libc.so.6
#1  0x0000000000a70fcf in os_thread_sleep (tm=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0thread.cc:255
#2  0x0000000000b819a8 in buf_flush_page_cleaner_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0flu.cc:2463
#3  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#4  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 42 (LWP 2327):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a708e3 in os_cond_wait (cond=<optimized out>, fast_mutex=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  0x0000000000a709ab in os_event_wait_low (event=0x953a6d0, reset_sig_count=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b7bc5c in buf_dump_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0dump.cc:594
#4  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 41 (LWP 2328):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a708e3 in os_cond_wait (cond=<optimized out>, fast_mutex=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  0x0000000000a709ab in os_event_wait_low (event=0x143d89c0, reset_sig_count=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b0c7e5 in sync_array_wait_event (arr=0x90f26c0, index=10) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0arr.cc:433
#4  0x0000000000b0e67a in rw_lock_x_lock_func (lock=0x15ca220 <dict_operation_lock>, pass=0, file_name=0xdfc4d8 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/dict/dict0stats.cc", line=2226, priority_lock=false, high_priority=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0rw.cc:828
#5  0x0000000000bb1b3e in pfs_rw_lock_x_lock_func (lock=0x15ca220 <dict_operation_lock>, pass=<optimized out>, file_name=0xdfc4d8 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/dict/dict0stats.cc", line=2226) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0rw.ic:890
#6  0x0000000000bb7c02 in dict_stats_save (table_orig=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/dict/dict0stats.cc:2226
#7  0x0000000000bb8584 in dict_stats_update (table=0x1b2947c8, stats_upd_option=DICT_STATS_RECALC_PERSISTENT) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/dict/dict0stats.cc:2986
#8  0x0000000000bb9f5a in dict_stats_process_entry_from_recalc_pool () at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/dict/dict0stats_bg.cc:313
#9  0x0000000000bb9fed in dict_stats_thread (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/dict/dict0stats_bg.cc:355
#10 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#11 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 40 (LWP 2329):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a706e1 in os_cond_wait_timed (cond=<optimized out>, fast_mutex=<optimized out>, abstime=0x23dfecf0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:177
#2  0x0000000000a70803 in os_event_wait_time_low (event=0x1ab46900, time_in_usec=<optimized out>, reset_sig_count=1) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:723
#3  0x0000000000b39389 in ib_wqueue_timedwait (wq=0x1ae67638, wait_in_usecs=5000000) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/ut/ut0wqueue.cc:154
#4  0x0000000000be923c in fts_optimize_thread (arg=0x1ae67638) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/fts/fts0opt.cc:2972
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 39 (LWP 2330):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000008215e0 in inline_mysql_cond_timedwait (that=0x159fa50 <pool_timer+48>, mutex=0x159fa20 <pool_timer>, abstime=0x247ffd60, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x0000000000822302 in timer_thread (param=0x159fa20 <pool_timer>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:505
#3  0x00000000009ec57a in pfs_spawn_thread (arg=0x1ab81840) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#4  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 38 (LWP 2331):
+bt
#0  0x000000363720f2a5 in sigwait () from /lib64/libpthread.so.0
#1  0x000000000062c82b in signal_hand (arg=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mysqld.cc:3184
#2  0x00000000009ec57a in pfs_spawn_thread (arg=0x1ab81ae0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#3  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#4  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 37 (LWP 2332):
+bt
#0  0x0000003636ee8f03 in epoll_wait () from /lib64/libc.so.6
#1  0x0000000000822697 in io_poll_wait (pollfd=16, native_events=0x1c271be0, maxevents=1024, timeout_ms=-1) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:281
#2  0x000000000082273e in listener (current_thread=<optimized out>, thread_group=0x158fc00 <all_groups+512>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:643
#3  0x0000000000822aeb in get_event (current_thread=0x1c274ce0, thread_group=0x158fc00 <all_groups+512>, abstime=0x1c274d60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1093
#4  0x000000000082318a in worker_main (param=0x158fc00 <all_groups+512>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#5  0x00000000009ec57a in pfs_spawn_thread (arg=0x1acb4940) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#6  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 36 (LWP 2336):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000008215e0 in inline_mysql_cond_timedwait (that=0x1c2b5d00, mutex=0x158fe00 <all_groups+1024>, abstime=0x1c2b5d60, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000008229fc in get_event (current_thread=0x1c2b5ce0, thread_group=0x158fe00 <all_groups+1024>, abstime=0x1c2b5d60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x000000000082318a in worker_main (param=0x158fe00 <all_groups+1024>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009ec57a in pfs_spawn_thread (arg=0x1ace31a0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 35 (LWP 2337):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a708e3 in os_cond_wait (cond=<optimized out>, fast_mutex=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  0x0000000000a709ab in os_event_wait_low (event=0x143d89c0, reset_sig_count=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b0c7e5 in sync_array_wait_event (arr=0x90f26c0, index=1) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0arr.cc:433
#4  0x0000000000b0e67a in rw_lock_x_lock_func (lock=0x15ca220 <dict_operation_lock>, pass=0, file_name=0xdb7800 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc", line=9989, priority_lock=false, high_priority=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0rw.cc:828
#5  0x0000000000ac9bbe in pfs_rw_lock_x_lock_func (lock=0x15ca220 <dict_operation_lock>, pass=<optimized out>, file_name=0xdb7800 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc", line=9989) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0rw.ic:890
#6  0x0000000000ac9bed in row_mysql_lock_data_dictionary_func (trx=0x2517fd38, file=<optimized out>, line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0mysql.cc:2097
#7  0x0000000000a0d4a7 in ha_innobase::create (this=<optimized out>, name=0x0, form=0x1c2f1c70, create_info=0x1c2f5230) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc:9989
#8  0x0000000000647ddf in ha_create_table (thd=0x1aa9e2d0, path=0x0, db=0x24fff3c8 "test", table_name=0x24ffee30 "b", create_info=0x1c2f5230, update_create_info=false, is_temp_table=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/handler.cc:4882
#9  0x0000000000820246 in rea_create_table (thd=0x1aa9e2d0, path=0x1c2f3cd0 "./test/b", db=0x24fff3c8 "test", table_name=0x24ffee30 "b", create_info=0x1c2f5230, create_fields=..., keys=25, key_info=0x2560c7f0, file=0x25599440, no_ha_table=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/unireg.cc:526
#10 0x00000000007c980c in create_table_impl (thd=0x1aa9e2d0, db=0x24fff3c8 "test", table_name=0x24ffee30 "b", path=0x1c2f3cd0 "./test/b", create_info=<optimized out>, alter_info=0x1c2f5310, internal_tmp_table=false, select_field_count=0, no_ha_table=false, is_trans=0x1c2f544f, key_info=0x1c2f3ee0, key_count=0x1c2f3ee8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:4847
#11 0x00000000007cf915 in mysql_create_table_no_lock (thd=0x1aa9e2d0, db=0x24fff3c8 "test", table_name=0x24ffee30 "b", create_info=0x1c2f5230, alter_info=0x1c2f5310, select_field_count=0, is_trans=0x1c2f544f) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:4959
#12 0x00000000007d4384 in mysql_create_like_table (thd=0x1aa9e2d0, table=0x24ffee68, src_table=0x24fff488, create_info=0x1c2f5b20) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:5292
#13 0x000000000078049a in mysql_execute_command (thd=0x1aa9e3b8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3344
#14 0x0000000000780d88 in mysql_parse (thd=0x1aa9e2d0, rawbuf=0x1aa9e2d8 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#15 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x1aa9e2d0, packet=0x1c2f69e0 "\320\342\251\032", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#16 0x0000000000782605 in do_command (thd=0x1aa9e2d0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#17 0x00000000008206b7 in threadpool_process_request (thd=0x1aa9e2d0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#18 0x0000000000823040 in handle_event (connection=0x135a17e0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#19 0x0000000000823108 in worker_main (param=0x158fe00 <all_groups+1024>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#20 0x00000000009ec57a in pfs_spawn_thread (arg=0x1aea6080) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#21 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#22 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 34 (LWP 2462):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006e1e10 in inline_mysql_cond_timedwait (that=0x1abdac18, mutex=0x1abdabe8, abstime=0x1c3363e0, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000006e1f55 in MDL_wait::timed_wait (this=0x1abdabe8, owner=0x1abdaab0, abs_timeout=0x1c3363e0, set_status_on_timeout=true, wait_state_name=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000008125cc in TABLE_SHARE::wait_for_old_version (this=0x1b33ec40, thd=0x1abdaab0, abstime=0x1c3363e0, deadlock_weight=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/table.cc:3594
#4  0x000000000072d94b in close_cached_tables (thd=0x1abdaab0, tables=0x0, wait_for_refresh=<optimized out>, timeout=31536000) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:1040
#5  0x0000000000795dda in reload_acl_and_cache (thd=0x1abdaab0, options=4, tables=0x0, write_to_binlog=0x1c337170) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_reload.cc:275
#6  0x000000000077b71c in mysql_execute_command (thd=0x1abdab98) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:4492
#7  0x0000000000780d88 in mysql_parse (thd=0x1abdaab0, rawbuf=0x1abdaab8 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#8  0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x1abdaab0, packet=0x1c3379e0 "\260\252\275\032", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#9  0x0000000000782605 in do_command (thd=0x1abdaab0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#10 0x00000000008206b7 in threadpool_process_request (thd=0x1abdaab0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#11 0x0000000000823040 in handle_event (connection=0x1ad463c0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#12 0x0000000000823108 in worker_main (param=0x1590000 <all_groups+1536>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#13 0x00000000009ec57a in pfs_spawn_thread (arg=0x1aa8e070) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#14 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#15 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 33 (LWP 2463):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006e1e10 in inline_mysql_cond_timedwait (that=0x24aadf18, mutex=0x24aadee8, abstime=0x1c376680, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000006e1f55 in MDL_wait::timed_wait (this=0x24aadee8, owner=0x24aaddb0, abs_timeout=0x1c376680, set_status_on_timeout=true, wait_state_name=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000006e366f in MDL_context::acquire_lock (this=0x24aadee8, mdl_request=0x248b2d10, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2245
#4  0x00000000007264d9 in open_table_get_mdl_lock (thd=0x24aaddb0, ot_ctx=0x1c376d40, mdl_request=0x248b2d10, flags=<optimized out>, mdl_ticket=0x1c376bc0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2527
#5  0x000000000072add9 in open_table (thd=0x24aaddb0, table_list=0x248b2970, ot_ctx=0x1c376d40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2819
#6  0x000000000072c6a1 in open_and_process_table (thd=0x24aaddb0, lex=0x24ab01a0, tables=0x248b2970, counter=0x24ab0258, flags=<optimized out>, prelocking_strategy=0x1c376e30, has_prelocking_list=false, ot_ctx=0x1c376d40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4592
#7  0x000000000072ca12 in open_tables (thd=0x24aaddb0, start=0x1c376df8, counter=0x24ab0258, flags=0, prelocking_strategy=0x1c376e30) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5099
#8  0x000000000072d066 in open_normal_and_derived_tables (thd=0x24aaddb0, tables=0x248b2970, flags=0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5798
#9  0x00000000007e966c in mysql_update (thd=0x24aaddb0, table_list=0x248b2970, fields=..., values=..., conds=0x248b31d8, order_num=0, order=0x0, limit=18446744073709551615, handle_duplicates=DUP_ERROR, ignore=true, found_return=0x1c378168, updated_return=0x1c378170) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_update.cc:251
#10 0x000000000077c43b in mysql_execute_command (thd=0x24aade98) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3596
#11 0x0000000000780d88 in mysql_parse (thd=0x24aaddb0, rawbuf=0x24aaddb8 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#12 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x24aaddb0, packet=0x1c3789e0 "\260ݪ$", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#13 0x0000000000782605 in do_command (thd=0x24aaddb0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#14 0x00000000008206b7 in threadpool_process_request (thd=0x24aaddb0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#15 0x0000000000823040 in handle_event (connection=0x135b47c0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#16 0x0000000000823108 in worker_main (param=0x1590000 <all_groups+1536>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#17 0x00000000009ec57a in pfs_spawn_thread (arg=0x1ad97e30) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#18 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#19 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 32 (LWP 2464):
+bt
#0  0x000000363720e054 in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00000036372093be in _L_lock_995 () from /lib64/libpthread.so.0
#2  0x0000003637209326 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3  0x0000000000725bd5 in inline_mysql_mutex_lock (that=0x158cdc0 <table_cache_manager>, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:690
#4  0x000000000072943a in close_thread_table (thd=0x24b7fe40, table_ptr=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:1518
#5  0x000000000072980b in close_open_tables (thd=0x24b7fe40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:1241
#6  0x0000000000729a18 in close_thread_tables (thd=0x24b7fe40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:1467
#7  0x000000000077b479 in mysql_execute_command (thd=0x24b7fe40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:5316
#8  0x0000000000780d88 in mysql_parse (thd=0x24b7fe40, rawbuf=0x24b7fe48 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#9  0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x24b7fe40, packet=0x1c3b99e0 "@\376\267$", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#10 0x0000000000782605 in do_command (thd=0x24b7fe40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#11 0x00000000008206b7 in threadpool_process_request (thd=0x24b7fe40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#12 0x0000000000823040 in handle_event (connection=0x135b7bf0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#13 0x0000000000823108 in worker_main (param=0x1590200 <all_groups+2048>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#14 0x00000000009ec57a in pfs_spawn_thread (arg=0x1358cdb0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#15 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#16 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 31 (LWP 2465):
+bt
#0  0x0000003636ee8f03 in epoll_wait () from /lib64/libc.so.6
#1  0x0000000000822697 in io_poll_wait (pollfd=20, native_events=0x1c3f7be0, maxevents=1024, timeout_ms=-1) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:281
#2  0x000000000082273e in listener (current_thread=<optimized out>, thread_group=0x1590400 <all_groups+2560>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:643
#3  0x0000000000822aeb in get_event (current_thread=0x1c3face0, thread_group=0x1590400 <all_groups+2560>, abstime=0x1c3fad60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1093
#4  0x000000000082318a in worker_main (param=0x1590400 <all_groups+2560>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#5  0x00000000009ec57a in pfs_spawn_thread (arg=0x1ae3c2c0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#6  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 30 (LWP 2466):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006e1e10 in inline_mysql_cond_timedwait (that=0x1b7eb6e8, mutex=0x1b7eb6b8, abstime=0x1c439c90, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000006e1f55 in MDL_wait::timed_wait (this=0x1b7eb6b8, owner=0x1b7eb580, abs_timeout=0x1c439c90, set_status_on_timeout=true, wait_state_name=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000006e366f in MDL_context::acquire_lock (this=0x1b7eb6b8, mdl_request=0x24edfe38, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2245
#4  0x00000000007264d9 in open_table_get_mdl_lock (thd=0x1b7eb580, ot_ctx=0x1c43a350, mdl_request=0x24edfe38, flags=<optimized out>, mdl_ticket=0x1c43a1d0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2527
#5  0x000000000072add9 in open_table (thd=0x1b7eb580, table_list=0x24edfa98, ot_ctx=0x1c43a350) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2819
#6  0x000000000072c6a1 in open_and_process_table (thd=0x1b7eb580, lex=0x1b7ed970, tables=0x24edfa98, counter=0x1b7eda28, flags=<optimized out>, prelocking_strategy=0x1c43a440, has_prelocking_list=false, ot_ctx=0x1c43a350) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4592
#7  0x000000000072ca12 in open_tables (thd=0x1b7eb580, start=0x1c43a408, counter=0x1b7eda28, flags=0, prelocking_strategy=0x1c43a440) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5099
#8  0x000000000072d066 in open_normal_and_derived_tables (thd=0x1b7eb580, tables=0x24edf360, flags=0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5798
#9  0x000000000077dadf in mysql_execute_command (thd=0x1b7eb668) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3790
#10 0x0000000000780d88 in mysql_parse (thd=0x1b7eb580, rawbuf=0x1b7eb588 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#11 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x1b7eb580, packet=0x1c43b9e0 "\200\265~\033", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#12 0x0000000000782605 in do_command (thd=0x1b7eb580) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#13 0x00000000008206b7 in threadpool_process_request (thd=0x1b7eb580) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#14 0x0000000000823040 in handle_event (connection=0x1ac80d30) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#15 0x0000000000823108 in worker_main (param=0x1590600 <all_groups+3072>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#16 0x00000000009ec57a in pfs_spawn_thread (arg=0x1adbf650) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#17 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#18 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 29 (LWP 2467):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a708e3 in os_cond_wait (cond=<optimized out>, fast_mutex=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  0x0000000000a709ab in os_event_wait_low (event=0x143d89c0, reset_sig_count=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b0c7e5 in sync_array_wait_event (arr=0x90f26c0, index=2) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0arr.cc:433
#4  0x0000000000b0e67a in rw_lock_x_lock_func (lock=0x15ca220 <dict_operation_lock>, pass=0, file_name=0xdfc4d8 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/dict/dict0stats.cc", line=3163, priority_lock=false, high_priority=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0rw.cc:828
#5  0x0000000000bb1b3e in pfs_rw_lock_x_lock_func (lock=0x15ca220 <dict_operation_lock>, pass=<optimized out>, file_name=0xdfc4d8 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/dict/dict0stats.cc", line=3163) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0rw.ic:890
#6  0x0000000000bb2f31 in dict_stats_drop_index (db_and_table=<optimized out>, iname=0x24de4dda "c5", errstr=0x1c478390 " \204G\034", errstr_sz=1024) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/dict/dict0stats.cc:3163
#7  0x0000000000a16be9 in alter_stats_norebuild (ha_alter_info=0x1c479290, ctx=0x253b7cf0, altered_table=<optimized out>, table_name=<optimized out>, thd=0x24a4dde0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/handler0alter.cc:5145
#8  0x0000000000a1fd80 in ha_innobase::commit_inplace_alter_table (this=<optimized out>, altered_table=0x1b77f120, ha_alter_info=0x1c479290, commit=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/handler0alter.cc:5780
#9  0x00000000007c5234 in remove_secondary_keys (thd=0x24a4dde0, create_info=0x1c47b280, table=0x1b77f120, alter_info=0x1c47b360) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:7717
#10 0x00000000007d30fd in mysql_alter_table (thd=0x24a4dde0, new_db=0x1b77f120 "\360\371w\033", new_name=0xc83001 <my_strcasecmp_utf8mb4+145> "A\\A]A^A_\311\303\017\037D", create_info=0x1c47b280, table_list=0x1b3d2c48, alter_info=0x1c47b360, order_num=0, order=0x0, ignore=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:8529
#11 0x00000000008c7f0c in Sql_cmd_alter_table::execute (this=<optimized out>, thd=0x24a4dde0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_alter.cc:317
#12 0x000000000077b65a in mysql_execute_command (thd=0x24a4dec8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:5242
#13 0x0000000000780d88 in mysql_parse (thd=0x24a4dde0, rawbuf=0x24a4dde8 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#14 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x24a4dde0, packet=0x1c47c9e0 "\340ݤ$", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#15 0x0000000000782605 in do_command (thd=0x24a4dde0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#16 0x00000000008206b7 in threadpool_process_request (thd=0x24a4dde0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#17 0x0000000000823040 in handle_event (connection=0x143e2660) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#18 0x0000000000823108 in worker_main (param=0x1590800 <all_groups+3584>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#19 0x00000000009ec57a in pfs_spawn_thread (arg=0x1afb08e0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#20 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#21 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 28 (LWP 2468):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a708e3 in os_cond_wait (cond=<optimized out>, fast_mutex=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  0x0000000000a709ab in os_event_wait_low (event=0x143d89c0, reset_sig_count=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b0c7e5 in sync_array_wait_event (arr=0x90f26c0, index=8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0arr.cc:433
#4  0x0000000000b0e67a in rw_lock_x_lock_func (lock=0x15ca220 <dict_operation_lock>, pass=0, file_name=0xdb7800 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc", line=9989, priority_lock=false, high_priority=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0rw.cc:828
#5  0x0000000000ac9bbe in pfs_rw_lock_x_lock_func (lock=0x15ca220 <dict_operation_lock>, pass=<optimized out>, file_name=0xdb7800 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc", line=9989) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0rw.ic:890
#6  0x0000000000ac9bed in row_mysql_lock_data_dictionary_func (trx=0x1af69618, file=<optimized out>, line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0mysql.cc:2097
#7  0x0000000000a0d4a7 in ha_innobase::create (this=<optimized out>, name=0x0, form=0x1c4b8c70, create_info=0x1c4bc230) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc:9989
#8  0x0000000000647ddf in ha_create_table (thd=0x1ad19900, path=0x0, db=0x1b2e9d90 "test", table_name=0x1b2e97f8 "d", create_info=0x1c4bc230, update_create_info=false, is_temp_table=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/handler.cc:4882
#9  0x0000000000820246 in rea_create_table (thd=0x1ad19900, path=0x1c4bacd0 "./test/d", db=0x1b2e9d90 "test", table_name=0x1b2e97f8 "d", create_info=0x1c4bc230, create_fields=..., keys=25, key_info=0x25844090, file=0x255a5850, no_ha_table=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/unireg.cc:526
#10 0x00000000007c980c in create_table_impl (thd=0x1ad19900, db=0x1b2e9d90 "test", table_name=0x1b2e97f8 "d", path=0x1c4bacd0 "./test/d", create_info=<optimized out>, alter_info=0x1c4bc310, internal_tmp_table=false, select_field_count=0, no_ha_table=false, is_trans=0x1c4bc44f, key_info=0x1c4baee0, key_count=0x1c4baee8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:4847
#11 0x00000000007cf915 in mysql_create_table_no_lock (thd=0x1ad19900, db=0x1b2e9d90 "test", table_name=0x1b2e97f8 "d", create_info=0x1c4bc230, alter_info=0x1c4bc310, select_field_count=0, is_trans=0x1c4bc44f) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:4959
#12 0x00000000007d4384 in mysql_create_like_table (thd=0x1ad19900, table=0x1b2e9830, src_table=0x1b2e9e60, create_info=0x1c4bcb20) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:5292
#13 0x000000000078049a in mysql_execute_command (thd=0x1ad199e8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3344
#14 0x0000000000780d88 in mysql_parse (thd=0x1ad19900, rawbuf=0x1ad19908 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#15 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x1ad19900, packet=0x1c4bd9e0 "", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#16 0x0000000000782605 in do_command (thd=0x1ad19900) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#17 0x00000000008206b7 in threadpool_process_request (thd=0x1ad19900) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#18 0x0000000000823040 in handle_event (connection=0x1aa23080) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#19 0x0000000000823108 in worker_main (param=0x158fa00 <all_groups>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#20 0x00000000009ec57a in pfs_spawn_thread (arg=0x135acb90) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#21 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#22 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 27 (LWP 2470):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006e1e10 in inline_mysql_cond_timedwait (that=0x1b655088, mutex=0x1b655058, abstime=0x1c4fc680, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000006e1f55 in MDL_wait::timed_wait (this=0x1b655058, owner=0x1b654f20, abs_timeout=0x1c4fc680, set_status_on_timeout=true, wait_state_name=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000006e366f in MDL_context::acquire_lock (this=0x1b655058, mdl_request=0x24d59668, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2245
#4  0x00000000007264d9 in open_table_get_mdl_lock (thd=0x1b654f20, ot_ctx=0x1c4fcd40, mdl_request=0x24d59668, flags=<optimized out>, mdl_ticket=0x1c4fcbc0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2527
#5  0x000000000072add9 in open_table (thd=0x1b654f20, table_list=0x24d592c8, ot_ctx=0x1c4fcd40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2819
#6  0x000000000072c6a1 in open_and_process_table (thd=0x1b654f20, lex=0x1b657310, tables=0x24d592c8, counter=0x1b6573c8, flags=<optimized out>, prelocking_strategy=0x1c4fce30, has_prelocking_list=false, ot_ctx=0x1c4fcd40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4592
#7  0x000000000072ca12 in open_tables (thd=0x1b654f20, start=0x1c4fcdf8, counter=0x1b6573c8, flags=0, prelocking_strategy=0x1c4fce30) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5099
#8  0x000000000072d066 in open_normal_and_derived_tables (thd=0x1b654f20, tables=0x24d592c8, flags=0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5798
#9  0x00000000007e966c in mysql_update (thd=0x1b654f20, table_list=0x24d592c8, fields=..., values=..., conds=0x24d59c60, order_num=1, order=0x24d59f10, limit=18446744073709551615, handle_duplicates=DUP_ERROR, ignore=true, found_return=0x1c4fe168, updated_return=0x1c4fe170) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_update.cc:251
#10 0x000000000077c43b in mysql_execute_command (thd=0x1b655008) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3596
#11 0x0000000000780d88 in mysql_parse (thd=0x1b654f20, rawbuf=0x1b654f28 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#12 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x1b654f20, packet=0x1c4fe9e0 " Oe\033", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#13 0x0000000000782605 in do_command (thd=0x1b654f20) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#14 0x00000000008206b7 in threadpool_process_request (thd=0x1b654f20) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#15 0x0000000000823040 in handle_event (connection=0x1b7b1450) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#16 0x0000000000823108 in worker_main (param=0x158fc00 <all_groups+512>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#17 0x00000000009ec57a in pfs_spawn_thread (arg=0x1af65130) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#18 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#19 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 26 (LWP 2588):
+bt
#0  0x000000363720e054 in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00000036372093be in _L_lock_995 () from /lib64/libpthread.so.0
#2  0x0000003637209326 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3  0x0000000000725bd5 in inline_mysql_mutex_lock (that=0x156fb20 <LOCK_open>, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:690
#4  0x000000000072d99f in close_cached_tables (thd=0x24952310, tables=0x0, wait_for_refresh=<optimized out>, timeout=31536000) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:1007
#5  0x0000000000795dda in reload_acl_and_cache (thd=0x24952310, options=4, tables=0x0, write_to_binlog=0x1c53f170) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_reload.cc:275
#6  0x000000000077b71c in mysql_execute_command (thd=0x249523f8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:4492
#7  0x0000000000780d88 in mysql_parse (thd=0x24952310, rawbuf=0x24952318 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#8  0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x24952310, packet=0x1c53f9e0 "\020#\225$", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#9  0x0000000000782605 in do_command (thd=0x24952310) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#10 0x00000000008206b7 in threadpool_process_request (thd=0x24952310) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#11 0x0000000000823040 in handle_event (connection=0x1afa6a10) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#12 0x0000000000823108 in worker_main (param=0x1590200 <all_groups+2048>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#13 0x00000000009ec57a in pfs_spawn_thread (arg=0x135d3840) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#14 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#15 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 25 (LWP 2590):
+bt
#0  0x000000363720bd53 in pthread_cond_broadcast@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a709ce in os_cond_broadcast (cond=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:232
#2  0x0000000000a70a4f in os_event_set (event=0x1357aab0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:453
#3  0x0000000000b0fa8b in mutex_signal_object (mutex=0x14351018) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0sync.cc:677
#4  0x0000000000bb2f62 in dict_stats_drop_index (db_and_table=<optimized out>, iname=0x24804077 "c32", errstr=0x1c57bf30 "\300\277W\034", errstr_sz=1024) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/dict/dict0stats.cc:3176
#5  0x0000000000a16be9 in alter_stats_norebuild (ha_alter_info=0x1c57ce30, ctx=0x25079138, altered_table=<optimized out>, table_name=<optimized out>, thd=0x1adb2f60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/handler0alter.cc:5145
#6  0x0000000000a1fd80 in ha_innobase::commit_inplace_alter_table (this=<optimized out>, altered_table=0x1abb3390, ha_alter_info=0x1c57ce30, commit=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/handler0alter.cc:5780
#7  0x00000000007c5234 in remove_secondary_keys (thd=0x1adb2f60, create_info=0x1c57e8b0, table=0x1abb3390, alter_info=0x1c57e990) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:7717
#8  0x00000000007d30fd in mysql_alter_table (thd=0x1adb2f60, new_db=0x1abb3390 "`<\273\032", new_name=0xc83001 <my_strcasecmp_utf8mb4+145> "A\\A]A^A_\311\303\017\037D", create_info=0x1c57e8b0, table_list=0x1b60f988, alter_info=0x1c57e990, order_num=0, order=0x0, ignore=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:8529
#9  0x00000000007d40f4 in mysql_recreate_table (thd=0x1adb2f60, table_list=0x1b60f988) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:9127
#10 0x00000000008c54b1 in mysql_admin_table(THD *, TABLE_LIST *, HA_CHECK_OPT *, const char *, thr_lock_type, bool, bool, uint, int (*)(THD *, TABLE_LIST *, HA_CHECK_OPT *), struct {...}, int (*)(THD *, TABLE_LIST *)) (thd=0x1adb2f60, tables=<optimized out>, check_opt=0x1adb6118, operator_name=0xd6e8cf "optimize", lock_type=TL_WRITE, open_for_modify=false, repair_table_use_frm=false, extra_open_options=0, prepare_func=0x0, operator_func=(int (handler::*)(handler * const, THD *, HA_CHECK_OPT *)) 0x6432d0 <handler::ha_optimize(THD*, st_ha_check_opt*)>, view_operator_func=0x0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_admin.cc:783
#11 0x00000000008c6311 in Sql_cmd_optimize_table::execute (this=<optimized out>, thd=0x1adb2f60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_admin.cc:1097
#12 0x000000000077b65a in mysql_execute_command (thd=0x1adb3048) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:5242
#13 0x0000000000780d88 in mysql_parse (thd=0x1adb2f60, rawbuf=0x1adb2f68 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#14 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x1adb2f60, packet=0x1c5809e0 "`/\333\032", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#15 0x0000000000782605 in do_command (thd=0x1adb2f60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#16 0x00000000008206b7 in threadpool_process_request (thd=0x1adb2f60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#17 0x0000000000823040 in handle_event (connection=0x1aa12a00) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#18 0x0000000000823108 in worker_main (param=0x1590400 <all_groups+2560>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#19 0x00000000009ec57a in pfs_spawn_thread (arg=0x1abcfaf0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#20 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#21 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 24 (LWP 2592):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006e1e10 in inline_mysql_cond_timedwait (that=0x1acf8dd8, mutex=0x1acf8da8, abstime=0x1c5bff70, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000006e1f55 in MDL_wait::timed_wait (this=0x1acf8da8, owner=0x1acf8c70, abs_timeout=0x1c5bff70, set_status_on_timeout=false, wait_state_name=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000006e3799 in MDL_context::acquire_lock (this=0x1acf8da8, mdl_request=0x24baf860, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2229
#4  0x00000000006e3bbb in MDL_context::acquire_locks (this=0x1acf8da8, mdl_requests=<optimized out>, lock_wait_timeout=31536000) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2339
#5  0x0000000000727e72 in lock_table_names (thd=0x1acf8c70, tables_start=0x24baf4c0, tables_end=<optimized out>, lock_wait_timeout=<optimized out>, flags=0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4853
#6  0x0000000000906935 in Sql_cmd_truncate_table::lock_table (this=0x24bafa28, thd=0x1acf8c70, table_ref=0x24baf4c0, hton_can_recreate=0x1c5c03ff) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_truncate.cc:344
#7  0x00000000009073ba in Sql_cmd_truncate_table::truncate_table (this=0x24bafa28, thd=0x1acf8c70, table_ref=0x24baf4c0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_truncate.cc:444
#8  0x00000000009075aa in Sql_cmd_truncate_table::execute (this=0x24bafa28, thd=0x1acf8c70) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_truncate.cc:519
#9  0x000000000077b65a in mysql_execute_command (thd=0x1acf8d58) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:5242
#10 0x0000000000780d88 in mysql_parse (thd=0x1acf8c70, rawbuf=0x1acf8c78 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#11 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x1acf8c70, packet=0x1c5c19e0 "p\214\317\032", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#12 0x0000000000782605 in do_command (thd=0x1acf8c70) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#13 0x00000000008206b7 in threadpool_process_request (thd=0x1acf8c70) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#14 0x0000000000823040 in handle_event (connection=0x25bb7a80) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#15 0x0000000000823108 in worker_main (param=0x1590600 <all_groups+3072>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#16 0x00000000009ec57a in pfs_spawn_thread (arg=0x1ac3bf90) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#17 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#18 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 23 (LWP 2594):
+bt
#0  0x0000003636ee8f03 in epoll_wait () from /lib64/libc.so.6
#1  0x0000000000822697 in io_poll_wait (pollfd=22, native_events=0x2643dbe0, maxevents=1024, timeout_ms=-1) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:281
#2  0x000000000082273e in listener (current_thread=<optimized out>, thread_group=0x1590800 <all_groups+3584>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:643
#3  0x0000000000822aeb in get_event (current_thread=0x26440ce0, thread_group=0x1590800 <all_groups+3584>, abstime=0x26440d60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1093
#4  0x000000000082318a in worker_main (param=0x1590800 <all_groups+3584>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#5  0x00000000009ec57a in pfs_spawn_thread (arg=0x9474a00) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#6  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 22 (LWP 2596):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006e1e10 in inline_mysql_cond_timedwait (that=0x24b67cc8, mutex=0x24b67c98, abstime=0x2647e880, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000006e1f55 in MDL_wait::timed_wait (this=0x24b67c98, owner=0x24b67b60, abs_timeout=0x2647e880, set_status_on_timeout=true, wait_state_name=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000006e366f in MDL_context::acquire_lock (this=0x24b67c98, mdl_request=0x259d7f58, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2245
#4  0x00000000007264d9 in open_table_get_mdl_lock (thd=0x24b67b60, ot_ctx=0x2647ef40, mdl_request=0x259d7f58, flags=<optimized out>, mdl_ticket=0x2647edc0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2527
#5  0x000000000072add9 in open_table (thd=0x24b67b60, table_list=0x259d7bb8, ot_ctx=0x2647ef40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2819
#6  0x000000000072c6a1 in open_and_process_table (thd=0x24b67b60, lex=0x253f6cb8, tables=0x259d7bb8, counter=0x253f6d70, flags=<optimized out>, prelocking_strategy=0x2647f030, has_prelocking_list=false, ot_ctx=0x2647ef40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4592
#7  0x000000000072ca12 in open_tables (thd=0x24b67b60, start=0x2647eff8, counter=0x253f6d70, flags=0, prelocking_strategy=0x2647f030) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5099
#8  0x000000000072d066 in open_normal_and_derived_tables (thd=0x24b67b60, tables=0x259d7bb8, flags=0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5798
#9  0x000000000077932b in execute_sqlcom_select (thd=0x24b67b60, all_tables=0x259d7bb8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:5368
#10 0x000000000077c56c in mysql_execute_command (thd=0x253f49b0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:2847
#11 0x00000000008c1a16 in sp_instr_stmt::exec_core (this=0x259d8168, thd=0x24b67b60, nextp=0x26480358) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sp_instr.cc:898
#12 0x00000000008c2474 in sp_lex_instr::reset_lex_and_exec_core (this=0x259d8168, thd=0x24b67b60, nextp=0x26480358, open_tables=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sp_instr.cc:382
#13 0x00000000008c2824 in sp_lex_instr::validate_lex_and_execute_core (this=0x259d8168, thd=0x24b67b60, nextp=0x26480358, open_tables=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sp_instr.cc:610
#14 0x00000000008c2c28 in sp_instr_stmt::execute (this=0x259d8168, thd=0x24b67b60, nextp=0x26480358) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sp_instr.cc:801
#15 0x00000000006f8778 in sp_head::execute (this=0x253f62b0, thd=0x24b67b60, merge_da_on_success=true) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sp_head.cc:645
#16 0x00000000006f94f5 in sp_head::execute_procedure (this=0x253f62b0, thd=0x24b67b60, args=0x24b6abb8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sp_head.cc:1307
#17 0x000000000077d8eb in mysql_execute_command (thd=0x24b67c48) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:4866
#18 0x0000000000780d88 in mysql_parse (thd=0x24b67b60, rawbuf=0x24b67b68 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#19 0x0000000000781ac0 in dispatch_command (command=<optimized out>, thd=0x24b67b60, packet=0x264819e0 "`{\266$", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1511
#20 0x0000000000782605 in do_command (thd=0x24b67b60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#21 0x00000000008206b7 in threadpool_process_request (thd=0x24b67b60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#22 0x0000000000823040 in handle_event (connection=0x1358c680) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#23 0x0000000000823108 in worker_main (param=0x158fa00 <all_groups>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#24 0x00000000009ec57a in pfs_spawn_thread (arg=0x4e34390) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#25 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#26 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 21 (LWP 2604):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006e1e10 in inline_mysql_cond_timedwait (that=0x24b1ef68, mutex=0x24b1ef38, abstime=0x264c0680, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000006e1f55 in MDL_wait::timed_wait (this=0x24b1ef38, owner=0x24b1ee00, abs_timeout=0x264c0680, set_status_on_timeout=true, wait_state_name=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000006e366f in MDL_context::acquire_lock (this=0x24b1ef38, mdl_request=0x1b2224d8, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2245
#4  0x00000000007264d9 in open_table_get_mdl_lock (thd=0x24b1ee00, ot_ctx=0x264c0d40, mdl_request=0x1b2224d8, flags=<optimized out>, mdl_ticket=0x264c0bc0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2527
#5  0x000000000072add9 in open_table (thd=0x24b1ee00, table_list=0x1b222138, ot_ctx=0x264c0d40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2819
#6  0x000000000072c6a1 in open_and_process_table (thd=0x24b1ee00, lex=0x24b211f0, tables=0x1b222138, counter=0x24b212a8, flags=<optimized out>, prelocking_strategy=0x264c0e30, has_prelocking_list=false, ot_ctx=0x264c0d40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4592
#7  0x000000000072ca12 in open_tables (thd=0x24b1ee00, start=0x264c0df8, counter=0x24b212a8, flags=0, prelocking_strategy=0x264c0e30) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5099
#8  0x000000000072d066 in open_normal_and_derived_tables (thd=0x24b1ee00, tables=0x1b222138, flags=0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5798
#9  0x00000000007e966c in mysql_update (thd=0x24b1ee00, table_list=0x1b222138, fields=..., values=..., conds=0x0, order_num=0, order=0x0, limit=18446744073709551615, handle_duplicates=DUP_ERROR, ignore=true, found_return=0x264c2168, updated_return=0x264c2170) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_update.cc:251
#10 0x000000000077c43b in mysql_execute_command (thd=0x24b1eee8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3596
#11 0x0000000000780d88 in mysql_parse (thd=0x24b1ee00, rawbuf=0x24b1ee08 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#12 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x24b1ee00, packet=0x264c29e0 "", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#13 0x0000000000782605 in do_command (thd=0x24b1ee00) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#14 0x00000000008206b7 in threadpool_process_request (thd=0x24b1ee00) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#15 0x0000000000823040 in handle_event (connection=0x1a9632f0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#16 0x0000000000823108 in worker_main (param=0x1590800 <all_groups+3584>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#17 0x00000000009ec57a in pfs_spawn_thread (arg=0x25465350) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#18 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#19 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 20 (LWP 2615):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006e1e10 in inline_mysql_cond_timedwait (that=0x24c94b08, mutex=0x24c94ad8, abstime=0x264ffe90, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000006e1f55 in MDL_wait::timed_wait (this=0x24c94ad8, owner=0x24c949a0, abs_timeout=0x264ffe90, set_status_on_timeout=true, wait_state_name=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000006e366f in MDL_context::acquire_lock (this=0x24c94ad8, mdl_request=0x2481a8c8, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2245
#4  0x00000000006e3bbb in MDL_context::acquire_locks (this=0x24c94ad8, mdl_requests=<optimized out>, lock_wait_timeout=31536000) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2339
#5  0x0000000000727e72 in lock_table_names (thd=0x24c949a0, tables_start=0x2481a528, tables_end=<optimized out>, lock_wait_timeout=<optimized out>, flags=0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4853
#6  0x000000000072cbf8 in open_tables (thd=0x24c949a0, start=0x265003e8, counter=0x26501ca8, flags=0, prelocking_strategy=0x26501c90) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5066
#7  0x00000000007d2109 in mysql_alter_table (thd=0x24c949a0, new_db=0x2481aa88 "test", new_name=0x0, create_info=0x26502280, table_list=0x2481a528, alter_info=0x26502360, order_num=0, order=0x0, ignore=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:7886
#8  0x00000000008c7f0c in Sql_cmd_alter_table::execute (this=<optimized out>, thd=0x24c949a0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_alter.cc:317
#9  0x000000000077b65a in mysql_execute_command (thd=0x24c94a88) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:5242
#10 0x0000000000780d88 in mysql_parse (thd=0x24c949a0, rawbuf=0x24c949a8 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#11 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x24c949a0, packet=0x265039e0 "\240I\311$", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#12 0x0000000000782605 in do_command (thd=0x24c949a0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#13 0x00000000008206b7 in threadpool_process_request (thd=0x24c949a0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#14 0x0000000000823040 in handle_event (connection=0x1b6b2400) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#15 0x0000000000823108 in worker_main (param=0x158fe00 <all_groups+1024>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#16 0x00000000009ec57a in pfs_spawn_thread (arg=0x135b7c60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#17 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#18 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 19 (LWP 2620):
+bt
#0  0x000000363720e054 in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x0000003637210e53 in _L_cond_lock_1028 () from /lib64/libpthread.so.0
#2  0x0000003637210dbb in __pthread_mutex_cond_lock () from /lib64/libpthread.so.0
#3  0x000000363720b4d6 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#4  0x0000000000a708e3 in os_cond_wait (cond=<optimized out>, fast_mutex=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#5  0x0000000000a709ab in os_event_wait_low (event=0x1357aab0, reset_sig_count=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#6  0x0000000000b0c7e5 in sync_array_wait_event (arr=0x90f26c0, index=0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0arr.cc:433
#7  0x0000000000b0fc03 in mutex_spin_wait (_mutex=0x14351018, high_priority=false, file_name=0xdf91c0 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/dict/dict0dict.cc", line=479) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0sync.cc:660
#8  0x0000000000b99938 in pfs_mutex_enter_func (mutex=0x14351018, file_name=0xdf91c0 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/dict/dict0dict.cc", line=479, priority=DEFAULT_PRIO) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0sync.ic:383
#9  0x0000000000ba3f9a in dict_table_close (table=0x24855b88, dict_locked=0, try_drop=1) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/dict/dict0dict.cc:479
#10 0x0000000000acf239 in row_prebuilt_free (prebuilt=0x256b6b48, dict_locked=0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0mysql.cc:894
#11 0x0000000000a0911f in ha_innobase::close (this=0x1abfd690) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc:5456
#12 0x00000000006409ad in handler::ha_close (this=0x1abfd690) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/handler.cc:2594
#13 0x0000000000812969 in closefrm (table=0x248d5de0, free_share=true) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/table.cc:2436
#14 0x000000000072929f in intern_close_table (table=0x248d5de0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:821
#15 0x0000000000729478 in close_thread_table (thd=0x24bf0c20, table_ptr=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:1525
#16 0x000000000072980b in close_open_tables (thd=0x24bf0c20) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:1241
#17 0x0000000000729a18 in close_thread_tables (thd=0x24bf0c20) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:1467
#18 0x000000000077b479 in mysql_execute_command (thd=0x24bf0c20) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:5316
#19 0x0000000000780d88 in mysql_parse (thd=0x24bf0c20, rawbuf=0x24bf0c28 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#20 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x24bf0c20, packet=0x265449e0 " \f\277$", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#21 0x0000000000782605 in do_command (thd=0x24bf0c20) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#22 0x00000000008206b7 in threadpool_process_request (thd=0x24bf0c20) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#23 0x0000000000823040 in handle_event (connection=0x8d378e0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#24 0x0000000000823108 in worker_main (param=0x1590400 <all_groups+2560>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#25 0x00000000009ec57a in pfs_spawn_thread (arg=0x24976730) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#26 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#27 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 18 (LWP 2622):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000008215e0 in inline_mysql_cond_timedwait (that=0x26585d00, mutex=0x158fa00 <all_groups>, abstime=0x26585d60, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000008229fc in get_event (current_thread=0x26585ce0, thread_group=0x158fa00 <all_groups>, abstime=0x26585d60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x000000000082318a in worker_main (param=0x158fa00 <all_groups>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009ec57a in pfs_spawn_thread (arg=0x24eddcf0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 17 (LWP 2623):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006e1e10 in inline_mysql_cond_timedwait (that=0x24c24238, mutex=0x24c24208, abstime=0x265c4680, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000006e1f55 in MDL_wait::timed_wait (this=0x24c24208, owner=0x24c240d0, abs_timeout=0x265c4680, set_status_on_timeout=true, wait_state_name=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000006e366f in MDL_context::acquire_lock (this=0x24c24208, mdl_request=0x256c6090, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2245
#4  0x00000000007264d9 in open_table_get_mdl_lock (thd=0x24c240d0, ot_ctx=0x265c4d40, mdl_request=0x256c6090, flags=<optimized out>, mdl_ticket=0x265c4bc0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2527
#5  0x000000000072add9 in open_table (thd=0x24c240d0, table_list=0x256c5cf0, ot_ctx=0x265c4d40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2819
#6  0x000000000072c6a1 in open_and_process_table (thd=0x24c240d0, lex=0x24c264c0, tables=0x256c5cf0, counter=0x24c26578, flags=<optimized out>, prelocking_strategy=0x265c4e30, has_prelocking_list=false, ot_ctx=0x265c4d40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4592
#7  0x000000000072ca12 in open_tables (thd=0x24c240d0, start=0x265c4df8, counter=0x24c26578, flags=0, prelocking_strategy=0x265c4e30) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5099
#8  0x000000000072d066 in open_normal_and_derived_tables (thd=0x24c240d0, tables=0x256c5cf0, flags=0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5798
#9  0x00000000007e966c in mysql_update (thd=0x24c240d0, table_list=0x256c5cf0, fields=..., values=..., conds=0x0, order_num=1, order=0x256c6570, limit=18446744073709551615, handle_duplicates=DUP_ERROR, ignore=true, found_return=0x265c6168, updated_return=0x265c6170) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_update.cc:251
#10 0x000000000077c43b in mysql_execute_command (thd=0x24c241b8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3596
#11 0x0000000000780d88 in mysql_parse (thd=0x24c240d0, rawbuf=0x24c240d8 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#12 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x24c240d0, packet=0x265c69e0 "\320@\302$", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#13 0x0000000000782605 in do_command (thd=0x24c240d0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#14 0x00000000008206b7 in threadpool_process_request (thd=0x24c240d0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#15 0x0000000000823040 in handle_event (connection=0x1aa0b9f0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#16 0x0000000000823108 in worker_main (param=0x158fc00 <all_groups+512>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#17 0x00000000009ec57a in pfs_spawn_thread (arg=0x24b6fe30) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#18 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#19 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 16 (LWP 2624):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006e1e10 in inline_mysql_cond_timedwait (that=0x248560f8, mutex=0x248560c8, abstime=0x26605680, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000006e1f55 in MDL_wait::timed_wait (this=0x248560c8, owner=0x24855f90, abs_timeout=0x26605680, set_status_on_timeout=true, wait_state_name=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000006e366f in MDL_context::acquire_lock (this=0x248560c8, mdl_request=0x1b748bd8, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2245
#4  0x00000000007264d9 in open_table_get_mdl_lock (thd=0x24855f90, ot_ctx=0x26605d40, mdl_request=0x1b748bd8, flags=<optimized out>, mdl_ticket=0x26605bc0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2527
#5  0x000000000072add9 in open_table (thd=0x24855f90, table_list=0x1b748838, ot_ctx=0x26605d40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2819
#6  0x000000000072c6a1 in open_and_process_table (thd=0x24855f90, lex=0x24858380, tables=0x1b748838, counter=0x24858438, flags=<optimized out>, prelocking_strategy=0x26605e30, has_prelocking_list=false, ot_ctx=0x26605d40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4592
#7  0x000000000072ca12 in open_tables (thd=0x24855f90, start=0x26605df8, counter=0x24858438, flags=0, prelocking_strategy=0x26605e30) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5099
#8  0x000000000072d066 in open_normal_and_derived_tables (thd=0x24855f90, tables=0x1b748838, flags=0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5798
#9  0x00000000007e966c in mysql_update (thd=0x24855f90, table_list=0x1b748838, fields=..., values=..., conds=0x1b7490a8, order_num=0, order=0x0, limit=18446744073709551615, handle_duplicates=DUP_ERROR, ignore=true, found_return=0x26607168, updated_return=0x26607170) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_update.cc:251
#10 0x000000000077c43b in mysql_execute_command (thd=0x24856078) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3596
#11 0x0000000000780d88 in mysql_parse (thd=0x24855f90, rawbuf=0x24855f98 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#12 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x24855f90, packet=0x266079e0 "\220_\205$", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#13 0x0000000000782605 in do_command (thd=0x24855f90) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#14 0x00000000008206b7 in threadpool_process_request (thd=0x24855f90) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#15 0x0000000000823040 in handle_event (connection=0x24b7f450) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#16 0x0000000000823108 in worker_main (param=0x158fe00 <all_groups+1024>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#17 0x00000000009ec57a in pfs_spawn_thread (arg=0x25288470) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#18 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#19 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 15 (LWP 2625):
+bt
#0  0x000000363720e054 in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00000036372093be in _L_lock_995 () from /lib64/libpthread.so.0
#2  0x0000003637209326 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3  0x0000000000725bd5 in inline_mysql_mutex_lock (that=0x156fb20 <LOCK_open>, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:690
#4  0x0000000000727b52 in check_if_table_exists (thd=0x1ac09bf0, table=0x24897af0, fast_check=false, exists=0x26645cd8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2317
#5  0x000000000072b6a1 in open_table (thd=0x1ac09bf0, table_list=0x24897af0, ot_ctx=0x26645e40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2845
#6  0x000000000072c6a1 in open_and_process_table (thd=0x1ac09bf0, lex=0x1ac0bfe0, tables=0x24897af0, counter=0x26647448, flags=<optimized out>, prelocking_strategy=0x26645ee0, has_prelocking_list=false, ot_ctx=0x26645e40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4592
#7  0x000000000072ca12 in open_tables (thd=0x1ac09bf0, start=0x1ac0bff0, counter=0x26647448, flags=0, prelocking_strategy=0x26645ee0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5099
#8  0x000000000075e898 in open_tables (thd=0x1ac09bf0, tables=0x1ac0bff0, counter=0x26647448, flags=0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.h:456
#9  0x00000000007d4200 in mysql_create_like_table (thd=0x1ac09bf0, table=0x24897af0, src_table=0x24898110, create_info=0x26647b20) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:5247
#10 0x000000000078049a in mysql_execute_command (thd=0x1ac09cd8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3344
#11 0x0000000000780d88 in mysql_parse (thd=0x1ac09bf0, rawbuf=0x1ac09bf8 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#12 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x1ac09bf0, packet=0x266489e0 "\360\233\300\032", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#13 0x0000000000782605 in do_command (thd=0x1ac09bf0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#14 0x00000000008206b7 in threadpool_process_request (thd=0x1ac09bf0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#15 0x0000000000823040 in handle_event (connection=0x135ac690) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#16 0x0000000000823108 in worker_main (param=0x1590000 <all_groups+1536>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#17 0x00000000009ec57a in pfs_spawn_thread (arg=0x1ad2fde0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#18 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#19 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 14 (LWP 2626):
+bt
#0  0x000000363720e054 in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x00000036372093be in _L_lock_995 () from /lib64/libpthread.so.0
#2  0x0000003637209326 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3  0x0000000000725bd5 in inline_mysql_mutex_lock (that=0x158cdc0 <table_cache_manager>, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:690
#4  0x000000000072b07b in open_table (thd=0x24b9c750, table_list=0x1afb95d8, ot_ctx=0x26687c00) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2884
#5  0x000000000072c6a1 in open_and_process_table (thd=0x24b9c750, lex=0x24b9eb40, tables=0x1afb95d8, counter=0x24b9ebf8, flags=<optimized out>, prelocking_strategy=0x26687cf0, has_prelocking_list=false, ot_ctx=0x26687c00) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4592
#6  0x000000000072ca12 in open_tables (thd=0x24b9c750, start=0x26687cb8, counter=0x24b9ebf8, flags=0, prelocking_strategy=0x26687cf0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5099
#7  0x000000000072d066 in open_normal_and_derived_tables (thd=0x24b9c750, tables=0x1afb95d8, flags=0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5798
#8  0x00000000008cef7e in mysql_delete (thd=0x24b9c750, table_list=0x1afb95d8, conds=0x1afb9c60, order_list=0x24b9f418, limit=18446744073709551615, options=0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_delete.cc:72
#9  0x000000000077dd48 in mysql_execute_command (thd=0x24b9c838) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3858
#10 0x0000000000780d88 in mysql_parse (thd=0x24b9c750, rawbuf=0x24b9c758 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#11 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x24b9c750, packet=0x266899e0 "Pǹ$", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#12 0x0000000000782605 in do_command (thd=0x24b9c750) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#13 0x00000000008206b7 in threadpool_process_request (thd=0x24b9c750) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#14 0x0000000000823040 in handle_event (connection=0x24ba0150) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#15 0x0000000000823108 in worker_main (param=0x1590200 <all_groups+2048>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#16 0x00000000009ec57a in pfs_spawn_thread (arg=0x1ad30170) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#17 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#18 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 13 (LWP 2627):
+bt
#0  0x0000003636ee8f03 in epoll_wait () from /lib64/libc.so.6
#1  0x0000000000822697 in io_poll_wait (pollfd=21, native_events=0x266c7be0, maxevents=1024, timeout_ms=-1) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:281
#2  0x000000000082273e in listener (current_thread=<optimized out>, thread_group=0x1590600 <all_groups+3072>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:643
#3  0x0000000000822aeb in get_event (current_thread=0x266cace0, thread_group=0x1590600 <all_groups+3072>, abstime=0x266cad60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1093
#4  0x000000000082318a in worker_main (param=0x1590600 <all_groups+3072>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#5  0x00000000009ec57a in pfs_spawn_thread (arg=0x1ad30500) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#6  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 12 (LWP 2628):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006e1e10 in inline_mysql_cond_timedwait (that=0x259cc2d8, mutex=0x259cc2a8, abstime=0x26707c00, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000006e1f55 in MDL_wait::timed_wait (this=0x259cc2a8, owner=0x259cc170, abs_timeout=0x26707c00, set_status_on_timeout=false, wait_state_name=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000006e3799 in MDL_context::acquire_lock (this=0x259cc2a8, mdl_request=0x26707c90, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2229
#4  0x00000000006e3949 in MDL_context::upgrade_shared_lock (this=0x259cc2a8, mdl_ticket=0x1ab8ac90, new_type=MDL_EXCLUSIVE, lock_wait_timeout=31536000) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2410
#5  0x00000000007275f0 in wait_while_table_is_used (thd=0x259cc170, table=0x1a96dd90, function=HA_EXTRA_PREPARE_FOR_RENAME) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2226
#6  0x00000000007d374a in mysql_alter_table (thd=0x259cc170, new_db=0x24d6ec40 "\020\365\326$", new_name=0x80000b00 <Address 0x80000b00 out of bounds>, create_info=0x267098b0, table_list=0x1ade83b8, alter_info=0x26709990, order_num=0, order=0x0, ignore=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:8621
#7  0x00000000007d40f4 in mysql_recreate_table (thd=0x259cc170, table_list=0x1ade83b8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:9127
#8  0x00000000008c54b1 in mysql_admin_table(THD *, TABLE_LIST *, HA_CHECK_OPT *, const char *, thr_lock_type, bool, bool, uint, int (*)(THD *, TABLE_LIST *, HA_CHECK_OPT *), struct {...}, int (*)(THD *, TABLE_LIST *)) (thd=0x259cc170, tables=<optimized out>, check_opt=0x259cf328, operator_name=0xd6e8cf "optimize", lock_type=TL_WRITE, open_for_modify=false, repair_table_use_frm=false, extra_open_options=0, prepare_func=0x0, operator_func=(int (handler::*)(handler * const, THD *, HA_CHECK_OPT *)) 0x6432d0 <handler::ha_optimize(THD*, st_ha_check_opt*)>, view_operator_func=0x0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_admin.cc:783
#9  0x00000000008c6311 in Sql_cmd_optimize_table::execute (this=<optimized out>, thd=0x259cc170) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_admin.cc:1097
#10 0x000000000077b65a in mysql_execute_command (thd=0x259cc258) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:5242
#11 0x0000000000780d88 in mysql_parse (thd=0x259cc170, rawbuf=0x259cc178 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#12 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x259cc170, packet=0x2670b9e0 "p\301\234%", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#13 0x0000000000782605 in do_command (thd=0x259cc170) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#14 0x00000000008206b7 in threadpool_process_request (thd=0x259cc170) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#15 0x0000000000823040 in handle_event (connection=0x1ac4c0c0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#16 0x0000000000823108 in worker_main (param=0x1590800 <all_groups+3584>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#17 0x00000000009ec57a in pfs_spawn_thread (arg=0x1a9f1190) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#18 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#19 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 11 (LWP 2631):
+bt
#0  0x000000363720c69c in pthread_kill () from /lib64/libpthread.so.0
#1  0x00000000006f14bd in handle_fatal_signal (sig=6) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/signal_handler.cc:254
#2  <signal handler called>
#3  0x0000003636e328a5 in raise () from /lib64/libc.so.6
#4  0x0000003636e34085 in abort () from /lib64/libc.so.6
#5  0x0000003636e2ba1e in __assert_fail_base () from /lib64/libc.so.6
#6  0x0000003636e2bae0 in __assert_fail () from /lib64/libc.so.6
#7  0x000000000073a5cc in Query_cache::end_of_result (this=0x156ab80 <query_cache>, thd=0x1a8fb210) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_cache.cc:1209
#8  0x0000000000781006 in dispatch_command (command=<optimized out>, thd=0x1a8fb210, packet=<optimized out>, packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1852
#9  0x0000000000782605 in do_command (thd=0x1a8fb210) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#10 0x00000000008206b7 in threadpool_process_request (thd=0x1a8fb210) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#11 0x0000000000823040 in handle_event (connection=0x1b2586a0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#12 0x0000000000823108 in worker_main (param=0x158fe00 <all_groups+1024>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#13 0x00000000009ec57a in pfs_spawn_thread (arg=0x1acee7b0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#14 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#15 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 10 (LWP 2632):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a708e3 in os_cond_wait (cond=<optimized out>, fast_mutex=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  0x0000000000a709ab in os_event_wait_low (event=0x143d89c0, reset_sig_count=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b0c7e5 in sync_array_wait_event (arr=0x90f26c0, index=9) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0arr.cc:433
#4  0x0000000000b0e67a in rw_lock_x_lock_func (lock=0x15ca220 <dict_operation_lock>, pass=0, file_name=0xdb7800 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc", line=9989, priority_lock=false, high_priority=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0rw.cc:828
#5  0x0000000000ac9bbe in pfs_rw_lock_x_lock_func (lock=0x15ca220 <dict_operation_lock>, pass=<optimized out>, file_name=0xdb7800 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc", line=9989) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0rw.ic:890
#6  0x0000000000ac9bed in row_mysql_lock_data_dictionary_func (trx=0x24a87608, file=<optimized out>, line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0mysql.cc:2097
#7  0x0000000000a0d4a7 in ha_innobase::create (this=<optimized out>, name=0x0, form=0x26788c70, create_info=0x2678c230) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc:9989
#8  0x0000000000647ddf in ha_create_table (thd=0x1b6d2160, path=0x1 <Address 0x1 out of bounds>, db=0x250f9338 "test", table_name=0x250f8da0 "f", create_info=0x2678c230, update_create_info=false, is_temp_table=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/handler.cc:4882
#9  0x0000000000820246 in rea_create_table (thd=0x1b6d2160, path=0x2678acd0 "/ssd/806320/current1_3/tmp/#sql8fa_d_0", db=0x250f9338 "test", table_name=0x250f8da0 "f", create_info=0x2678c230, create_fields=..., keys=25, key_info=0x25ff86a0, file=0x25fdf8e0, no_ha_table=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/unireg.cc:526
#10 0x00000000007c980c in create_table_impl (thd=0x1b6d2160, db=0x250f9338 "test", table_name=0x250f8da0 "f", path=0x2678acd0 "/ssd/806320/current1_3/tmp/#sql8fa_d_0", create_info=<optimized out>, alter_info=0x2678c310, internal_tmp_table=false, select_field_count=0, no_ha_table=false, is_trans=0x2678c44f, key_info=0x2678aee0, key_count=0x2678aee8) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:4847
#11 0x00000000007cf915 in mysql_create_table_no_lock (thd=0x1b6d2160, db=0x250f9338 "test", table_name=0x250f8da0 "f", create_info=0x2678c230, alter_info=0x2678c310, select_field_count=0, is_trans=0x2678c44f) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:4959
#12 0x00000000007d4384 in mysql_create_like_table (thd=0x1b6d2160, table=0x250f8dd8, src_table=0x250f93f8, create_info=0x2678cb20) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:5292
#13 0x000000000078049a in mysql_execute_command (thd=0x1b6d2248) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3344
#14 0x0000000000780d88 in mysql_parse (thd=0x1b6d2160, rawbuf=0x1b6d2168 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#15 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x1b6d2160, packet=0x2678d9e0 "`!m\033", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#16 0x0000000000782605 in do_command (thd=0x1b6d2160) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#17 0x00000000008206b7 in threadpool_process_request (thd=0x1b6d2160) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#18 0x0000000000823040 in handle_event (connection=0x255a0210) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#19 0x0000000000823108 in worker_main (param=0x1590400 <all_groups+2560>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#20 0x00000000009ec57a in pfs_spawn_thread (arg=0x1b25b970) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#21 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#22 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 9 (LWP 2633):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006e1e10 in inline_mysql_cond_timedwait (that=0x1a9be0c8, mutex=0x1a9be098, abstime=0x267cc680, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000006e1f55 in MDL_wait::timed_wait (this=0x1a9be098, owner=0x1a9bdf60, abs_timeout=0x267cc680, set_status_on_timeout=true, wait_state_name=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000006e366f in MDL_context::acquire_lock (this=0x1a9be098, mdl_request=0x250341f0, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2245
#4  0x00000000007264d9 in open_table_get_mdl_lock (thd=0x1a9bdf60, ot_ctx=0x267ccd40, mdl_request=0x250341f0, flags=<optimized out>, mdl_ticket=0x267ccbc0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2527
#5  0x000000000072add9 in open_table (thd=0x1a9bdf60, table_list=0x25033e50, ot_ctx=0x267ccd40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2819
#6  0x000000000072c6a1 in open_and_process_table (thd=0x1a9bdf60, lex=0x1a9c0350, tables=0x25033e50, counter=0x1a9c0408, flags=<optimized out>, prelocking_strategy=0x267cce30, has_prelocking_list=false, ot_ctx=0x267ccd40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4592
#7  0x000000000072ca12 in open_tables (thd=0x1a9bdf60, start=0x267ccdf8, counter=0x1a9c0408, flags=0, prelocking_strategy=0x267cce30) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5099
#8  0x000000000072d066 in open_normal_and_derived_tables (thd=0x1a9bdf60, tables=0x25033e50, flags=0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5798
#9  0x00000000007e966c in mysql_update (thd=0x1a9bdf60, table_list=0x25033e50, fields=..., values=..., conds=0x25034810, order_num=1, order=0x25034ac8, limit=18446744073709551615, handle_duplicates=DUP_ERROR, ignore=true, found_return=0x267ce168, updated_return=0x267ce170) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_update.cc:251
#10 0x000000000077c43b in mysql_execute_command (thd=0x1a9be048) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3596
#11 0x0000000000780d88 in mysql_parse (thd=0x1a9bdf60, rawbuf=0x1a9bdf68 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#12 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x1a9bdf60, packet=0x267ce9e0 "`ߛ\032", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#13 0x0000000000782605 in do_command (thd=0x1a9bdf60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#14 0x00000000008206b7 in threadpool_process_request (thd=0x1a9bdf60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#15 0x0000000000823040 in handle_event (connection=0x1b61d5c0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#16 0x0000000000823108 in worker_main (param=0x158fa00 <all_groups>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#17 0x00000000009ec57a in pfs_spawn_thread (arg=0x24c62160) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#18 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#19 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 8 (LWP 2634):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a708e3 in os_cond_wait (cond=<optimized out>, fast_mutex=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  0x0000000000a709ab in os_event_wait_low (event=0x143d89c0, reset_sig_count=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b0c7e5 in sync_array_wait_event (arr=0x90f26c0, index=7) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0arr.cc:433
#4  0x0000000000b0e67a in rw_lock_x_lock_func (lock=0x15ca220 <dict_operation_lock>, pass=0, file_name=0xdb7800 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc", line=10633, priority_lock=false, high_priority=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0rw.cc:828
#5  0x0000000000ac9bbe in pfs_rw_lock_x_lock_func (lock=0x15ca220 <dict_operation_lock>, pass=<optimized out>, file_name=0xdb7800 "/bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc", line=10633) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0rw.ic:890
#6  0x0000000000ac9bed in row_mysql_lock_data_dictionary_func (trx=0x24cc6418, file=<optimized out>, line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0mysql.cc:2097
#7  0x0000000000a05c9a in innobase_rename_table (trx=0x24cc6418, from=0x2680bb30 "./test/#sql-8fa_11", to=0x2680b920 "./test/table10_innodb_compressed") at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc:10633
#8  0x0000000000a0faa1 in ha_innobase::rename_table (this=<optimized out>, from=0x2680bb30 "./test/#sql-8fa_11", to=0x2680b920 "./test/table10_innodb_compressed") at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc:10759
#9  0x00000000007ce8fb in mysql_rename_table (base=<optimized out>, old_db=0x24b71540 "test", old_name=0x2680bfd0 "#sql-8fa_11", new_db=0x24b71540 "test", new_name=0x24b70f48 "table10_innodb_compressed", flags=1) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:5169
#10 0x00000000007d387c in mysql_alter_table (thd=0x1b2a6950, new_db=0x24843460 "", new_name=0x80000b00 <Address 0x80000b00 out of bounds>, create_info=0x2680d8b0, table_list=0x24b70fe0, alter_info=0x2680d990, order_num=0, order=0x0, ignore=false) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:8646
#11 0x00000000007d40f4 in mysql_recreate_table (thd=0x1b2a6950, table_list=0x24b70fe0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:9127
#12 0x00000000008c54b1 in mysql_admin_table(THD *, TABLE_LIST *, HA_CHECK_OPT *, const char *, thr_lock_type, bool, bool, uint, int (*)(THD *, TABLE_LIST *, HA_CHECK_OPT *), struct {...}, int (*)(THD *, TABLE_LIST *)) (thd=0x1b2a6950, tables=<optimized out>, check_opt=0x1b2a9b08, operator_name=0xd6e8cf "optimize", lock_type=TL_WRITE, open_for_modify=false, repair_table_use_frm=false, extra_open_options=0, prepare_func=0x0, operator_func=(int (handler::*)(handler * const, THD *, HA_CHECK_OPT *)) 0x6432d0 <handler::ha_optimize(THD*, st_ha_check_opt*)>, view_operator_func=0x0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_admin.cc:783
#13 0x00000000008c6311 in Sql_cmd_optimize_table::execute (this=<optimized out>, thd=0x1b2a6950) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_admin.cc:1097
#14 0x000000000077b65a in mysql_execute_command (thd=0x1b2a6a38) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:5242
#15 0x0000000000780d88 in mysql_parse (thd=0x1b2a6950, rawbuf=0x1b2a6958 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#16 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x1b2a6950, packet=0x2680f9e0 "Pi*\033", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#17 0x0000000000782605 in do_command (thd=0x1b2a6950) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#18 0x00000000008206b7 in threadpool_process_request (thd=0x1b2a6950) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#19 0x0000000000823040 in handle_event (connection=0x1af981c0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#20 0x0000000000823108 in worker_main (param=0x158fc00 <all_groups+512>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#21 0x00000000009ec57a in pfs_spawn_thread (arg=0x24ec7b80) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#22 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#23 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 7 (LWP 2635):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000008215e0 in inline_mysql_cond_timedwait (that=0x26850d00, mutex=0x1590200 <all_groups+2048>, abstime=0x26850d60, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000008229fc in get_event (current_thread=0x26850ce0, thread_group=0x1590200 <all_groups+2048>, abstime=0x26850d60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x000000000082318a in worker_main (param=0x1590200 <all_groups+2048>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009ec57a in pfs_spawn_thread (arg=0x24ec7f10) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 6 (LWP 2636):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006e1e10 in inline_mysql_cond_timedwait (that=0x25bd9fb8, mutex=0x25bd9f88, abstime=0x2688f680, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000006e1f55 in MDL_wait::timed_wait (this=0x25bd9f88, owner=0x25bd9e50, abs_timeout=0x2688f680, set_status_on_timeout=true, wait_state_name=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000006e366f in MDL_context::acquire_lock (this=0x25bd9f88, mdl_request=0x1b2e1d78, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2245
#4  0x00000000007264d9 in open_table_get_mdl_lock (thd=0x25bd9e50, ot_ctx=0x2688fd40, mdl_request=0x1b2e1d78, flags=<optimized out>, mdl_ticket=0x2688fbc0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2527
#5  0x000000000072add9 in open_table (thd=0x25bd9e50, table_list=0x1b2e19d8, ot_ctx=0x2688fd40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2819
#6  0x000000000072c6a1 in open_and_process_table (thd=0x25bd9e50, lex=0x25bdc240, tables=0x1b2e19d8, counter=0x25bdc2f8, flags=<optimized out>, prelocking_strategy=0x2688fe30, has_prelocking_list=false, ot_ctx=0x2688fd40) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4592
#7  0x000000000072ca12 in open_tables (thd=0x25bd9e50, start=0x2688fdf8, counter=0x25bdc2f8, flags=0, prelocking_strategy=0x2688fe30) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5099
#8  0x000000000072d066 in open_normal_and_derived_tables (thd=0x25bd9e50, tables=0x1b2e19d8, flags=0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5798
#9  0x00000000007e966c in mysql_update (thd=0x25bd9e50, table_list=0x1b2e19d8, fields=..., values=..., conds=0x1b2e22f0, order_num=0, order=0x0, limit=18446744073709551615, handle_duplicates=DUP_ERROR, ignore=true, found_return=0x26891168, updated_return=0x26891170) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_update.cc:251
#10 0x000000000077c43b in mysql_execute_command (thd=0x25bd9f38) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3596
#11 0x0000000000780d88 in mysql_parse (thd=0x25bd9e50, rawbuf=0x25bd9e58 "", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6569
#12 0x00000000007818cd in dispatch_command (command=<optimized out>, thd=0x25bd9e50, packet=0x268919e0 "P\236\275%", packet_length=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1436
#13 0x0000000000782605 in do_command (thd=0x25bd9e50) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1051
#14 0x00000000008206b7 in threadpool_process_request (thd=0x25bd9e50) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:313
#15 0x0000000000823040 in handle_event (connection=0x1aa12380) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#16 0x0000000000823108 in worker_main (param=0x1590600 <all_groups+3072>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#17 0x00000000009ec57a in pfs_spawn_thread (arg=0x24ec82a0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#18 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#19 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 5 (LWP 2637):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000008215e0 in inline_mysql_cond_timedwait (that=0x268d2d00, mutex=0x1590000 <all_groups+1536>, abstime=0x268d2d60, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000008229fc in get_event (current_thread=0x268d2ce0, thread_group=0x1590000 <all_groups+1536>, abstime=0x268d2d60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x000000000082318a in worker_main (param=0x1590000 <all_groups+1536>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009ec57a in pfs_spawn_thread (arg=0x254b9aa0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 4 (LWP 2961):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000008215e0 in inline_mysql_cond_timedwait (that=0x26913d00, mutex=0x1590800 <all_groups+3584>, abstime=0x26913d60, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000008229fc in get_event (current_thread=0x26913ce0, thread_group=0x1590800 <all_groups+3584>, abstime=0x26913d60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x000000000082318a in worker_main (param=0x1590800 <all_groups+3584>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009ec57a in pfs_spawn_thread (arg=0x24b0c900) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 3 (LWP 2952):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000008215e0 in inline_mysql_cond_timedwait (that=0x269d6d00, mutex=0x1590200 <all_groups+2048>, abstime=0x269d6d60, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000008229fc in get_event (current_thread=0x269d6ce0, thread_group=0x1590200 <all_groups+2048>, abstime=0x269d6d60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x000000000082318a in worker_main (param=0x1590200 <all_groups+2048>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009ec57a in pfs_spawn_thread (arg=0x1357d670) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 2 (LWP 2955):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000008215e0 in inline_mysql_cond_timedwait (that=0x26a17d00, mutex=0x1590400 <all_groups+2560>, abstime=0x26a17d60, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000008229fc in get_event (current_thread=0x26a17ce0, thread_group=0x1590400 <all_groups+2560>, abstime=0x26a17d60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x000000000082318a in worker_main (param=0x1590400 <all_groups+2560>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009ec57a in pfs_spawn_thread (arg=0x1af5bfa0) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 1 (LWP 2957):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000008215e0 in inline_mysql_cond_timedwait (that=0x26a58d00, mutex=0x1590600 <all_groups+3072>, abstime=0x26a58d60, src_file=<optimized out>, src_line=<optimized out>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  0x00000000008229fc in get_event (current_thread=0x26a58ce0, thread_group=0x1590600 <all_groups+3072>, abstime=0x26a58d60) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x000000000082318a in worker_main (param=0x1590600 <all_groups+3072>) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009ec57a in pfs_spawn_thread (arg=0x1ac05080) at /bzr/5.6-QA_val/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6
(gdb) +set logging off