(gdb) +thread apply all bt

Thread 68 (LWP 12942):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006786a6 in inline_mysql_cond_timedwait (src_line=1306, src_file=0xce1a70 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc", abstime=0x7fcf402ea140, mutex=0x3ce2b98, that=0x3ce2bc8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  MDL_wait::timed_wait (this=0x3ce2b98, owner=0x3ce2a60, abs_timeout=0x7fcf402ea140, set_status_on_timeout=true, wait_state_name=0x0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000007c67c4 in TABLE_SHARE::wait_for_old_version (this=0x7fce78000a20, thd=0x3ce2a60, abstime=0x7fcf402ea140, deadlock_weight=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/table.cc:3594
#4  0x00000000006ccefe in close_cached_tables (thd=0x3ce2a60, tables=0x0, wait_for_refresh=true, timeout=31536000) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:1040
#5  0x000000000073f8a2 in reload_acl_and_cache (thd=0x3ce2a60, options=4, tables=0x0, write_to_binlog=0x7fcf402eaee0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_reload.cc:275
#6  0x0000000000724204 in mysql_execute_command (thd=0x3ce2a60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:4409
#7  0x0000000000728628 in mysql_parse (thd=0x3ce2a60, rawbuf=0x3ce4e20 "P\303\070\001", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6479
#8  0x000000000072978c in dispatch_command (command=COM_QUERY, thd=0x3ce2a60, packet=0x7fcf402eb910 "`*\316\003", packet_length=12) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1355
#9  0x000000000072a987 in do_command (thd=0x3ce2a60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1049
#10 0x00000000007d7f57 in threadpool_process_request (thd=0x3ce2a60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:312
#11 0x00000000007dac38 in handle_event (connection=0x3b21b10) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#12 worker_main (param=0x151d000 <all_groups>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#13 0x00000000009e033a in pfs_spawn_thread (arg=0x7fce7809a600) at /bzr/5.6-QA_dbg/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 67 (LWP 12903):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006786a6 in inline_mysql_cond_timedwait (src_line=1306, src_file=0xce1a70 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc", abstime=0x7fcf403ede10, mutex=0x3cf26d8, that=0x3cf2708) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  MDL_wait::timed_wait (this=0x3cf26d8, owner=0x3cf25a0, abs_timeout=0x7fcf403ede10, set_status_on_timeout=false, wait_state_name=0x0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x000000000067a80f in MDL_context::acquire_lock (this=0x3cf26d8, mdl_request=0x7fce840051f0, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2229
#4  0x000000000067ad2b in MDL_context::acquire_locks (this=0x3cf26d8, mdl_requests=<optimized out>, lock_wait_timeout=31536000) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2339
#5  0x00000000006c684e in lock_table_names (thd=0x3cf25a0, tables_start=0x7fce84004e50, tables_end=<optimized out>, lock_wait_timeout=<optimized out>, flags=0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4853
#6  0x000000000077ec95 in mysql_rm_table (thd=0x3cf25a0, tables=0x7fce84004e50, if_exists=1 '\001', drop_temporary=0 '\000') at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:2110
#7  0x0000000000724292 in mysql_execute_command (thd=0x3cf25a0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3848
#8  0x0000000000728628 in mysql_parse (thd=0x3cf25a0, rawbuf=0x3cf4960 "P\303\070\001", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6479
#9  0x000000000072978c in dispatch_command (command=COM_QUERY, thd=0x3cf25a0, packet=0x7fcf403ef910 "\240%\317\003", packet_length=23) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1355
#10 0x000000000072a987 in do_command (thd=0x3cf25a0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1049
#11 0x00000000007d7f57 in threadpool_process_request (thd=0x3cf25a0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:312
#12 0x00000000007dac38 in handle_event (connection=0x3b9fcd0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#13 worker_main (param=0x151d600 <all_groups+1536>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#14 0x00000000009e033a in pfs_spawn_thread (arg=0x7fced405ab70) at /bzr/5.6-QA_dbg/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 66 (LWP 12729):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf431dcd60, mutex=0x151d800 <all_groups+2048>, that=0x7fcf431dcc80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf431dcc60, thread_group=0x151d800 <all_groups+2048>, abstime=0x7fcf431dcd60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151d800 <all_groups+2048>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x7fceb8036c20) at /bzr/5.6-QA_dbg/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 65 (LWP 12721):
+bt
#0  0x0000003636ee8f03 in epoll_wait () from /lib64/libc.so.6
#1  0x00000000007d8917 in io_poll_wait (pollfd=20, native_events=0x7fcf432dda90, maxevents=1024, timeout_ms=-1) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:281
#2  0x00000000007d8ced in listener (current_thread=<optimized out>, thread_group=0x151d200 <all_groups+512>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:643
#3  0x00000000007da15c in get_event (current_thread=0x7fcf432e0c60, thread_group=0x151d200 <all_groups+512>, abstime=0x7fcf432e0d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1093
#4  0x00000000007dabf3 in worker_main (param=0x151d200 <all_groups+512>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#5  0x00000000009e033a in pfs_spawn_thread (arg=0x7fcf1003fde0) at /bzr/5.6-QA_dbg/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 64 (LWP 12715):
+bt
#0  0x0000003636ee8f03 in epoll_wait () from /lib64/libc.so.6
#1  0x00000000007d8917 in io_poll_wait (pollfd=26, native_events=0x7fcf433a0a90, maxevents=1024, timeout_ms=-1) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:281
#2  0x00000000007d8ced in listener (current_thread=<optimized out>, thread_group=0x151de00 <all_groups+3584>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:643
#3  0x00000000007da15c in get_event (current_thread=0x7fcf433a3c60, thread_group=0x151de00 <all_groups+3584>, abstime=0x7fcf433a3d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1093
#4  0x00000000007dabf3 in worker_main (param=0x151de00 <all_groups+3584>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#5  0x00000000009e033a in pfs_spawn_thread (arg=0x3bcb580) at /bzr/5.6-QA_dbg/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 63 (LWP 11082):
+bt
#0  0x000000363720f2a5 in sigwait () from /lib64/libpthread.so.0
#1  0x00000000005a2fcb in signal_hand (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mysqld.cc:3172
#2  0x00000000009e033a in pfs_spawn_thread (arg=0x3b3a9e0) at /bzr/5.6-QA_dbg/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 62 (LWP 11074):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a73183 in os_cond_wait (fast_mutex=0x3ad0340, cond=0x3ad0380) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  os_event_wait_low (event=0x3ad0340, reset_sig_count=164) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b11391 in sync_array_wait_event (arr=0x349d500, index=2) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0arr.cc:424
#4  0x0000000000b12f4c in rw_lock_s_lock_spin (lock=0x1557820 <dict_operation_lock>, pass=0, file_name=0xdfb0a8 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc", line=720) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0rw.cc:443
#5  0x0000000000ae30e5 in pfs_rw_lock_s_lock_func (line=720, lock=<optimized out>, pass=<optimized out>, file_name=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0rw.ic:685
#6  row_purge_parse_undo_rec (thr=0x3af61a0, updated_extern=0x7fcf3abfcc0f, undo_rec=0x3af5158 "\016\275\016", node=0x3af76d8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:720
#7  row_purge (thr=0x3af61a0, undo_rec=0x3af5158 "\016\275\016", node=0x3af76d8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:859
#8  row_purge_step (thr=0x3af61a0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:942
#9  0x0000000000a9b698 in que_thr_step (thr=0x3af61a0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1115
#10 que_run_threads_low (thr=0x3af61a0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1177
#11 0x0000000000a9bd20 in que_run_threads (thr=0x3af61a0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1218
#12 0x0000000000b067d5 in srv_task_execute () at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:2957
#13 srv_worker_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:3006
#14 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#15 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 61 (LWP 11060):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6cbd3 in os_aio_linux_collect (seg_size=256, segment=1, array=0x349d460) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5090
#2  os_aio_linux_handle (global_seg=3, message1=0x7fcf47b71d98, message2=0x7fcf47b71d90, type=0x7fcf47b71d88, space_id=0x7fcf47b71d80) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5235
#3  0x0000000000bcc1a7 in fil_aio_wait (segment=3) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5579
#4  0x0000000000b0ab98 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:479
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 60 (LWP 11077):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a73183 in os_cond_wait (fast_mutex=0x34ee6b0, cond=0x34ee6f0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  os_event_wait_low (event=0x34ee6b0, reset_sig_count=104855) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b11391 in sync_array_wait_event (arr=0x349d500, index=3) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0arr.cc:424
#4  0x0000000000b15c7c in mutex_spin_wait (mutex=0x34ee0a8, file_name=0xe12040 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0flu.cc", line=1556) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0sync.cc:584
#5  0x0000000000b8a204 in mutex_enter_func (line=1556, file_name=0xe12040 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0flu.cc", mutex=0x34ee0a8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0sync.ic:220
#6  pfs_mutex_enter_func (mutex=0x34ee0a8, file_name=0xe12040 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0flu.cc", line=1556) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0sync.ic:251
#7  0x0000000000b8e284 in buf_flush_LRU_list_batch (max=98, buf_pool=0x34ee028) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0flu.cc:1556
#8  buf_do_LRU_batch (max=99, buf_pool=0x34ee028) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0flu.cc:1621
#9  buf_flush_batch (buf_pool=0x34ee028, flush_type=BUF_FLUSH_LRU, min_n=99, lsn_limit=140527999626368) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0flu.cc:1745
#10 0x0000000000b8e6f0 in buf_flush_LRU (n_processed=<optimized out>, min_n=100, buf_pool=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0flu.cc:1907
#11 buf_flush_LRU_tail () at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0flu.cc:2138
#12 0x0000000000b8eaa0 in buf_flush_page_cleaner_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0flu.cc:2463
#13 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#14 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 59 (LWP 13803):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a73183 in os_cond_wait (fast_mutex=0x34ee6b0, cond=0x34ee6f0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  os_event_wait_low (event=0x34ee6b0, reset_sig_count=104855) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b11391 in sync_array_wait_event (arr=0x349d500, index=4) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0arr.cc:424
#4  0x0000000000b15c7c in mutex_spin_wait (mutex=0x34ee0a8, file_name=0xe0eb98 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0buf.cc", line=1862) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0sync.cc:584
#5  0x0000000000b77b54 in mutex_enter_func (line=1862, file_name=0xe0eb98 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0buf.cc", mutex=0x34ee0a8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0sync.ic:220
#6  pfs_mutex_enter_func (mutex=0x34ee0a8, file_name=0xe0eb98 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0buf.cc", line=1862) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0sync.ic:251
#7  0x0000000000b7908f in buf_page_make_young (bpage=0x7fce4c0d7ba0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0buf.cc:1862
#8  0x0000000000b838e3 in buf_page_get_zip (space=<optimized out>, zip_size=8192, offset=5395) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0buf.cc:2137
#9  0x0000000000b5c082 in btr_copy_zblob_prefix (offset=12, page_no=5395, space_id=31, zip_size=8192, len=<optimized out>, buf=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/btr/btr0cur.cc:5482
#10 btr_copy_externally_stored_field_prefix_low (buf=<optimized out>, len=<optimized out>, zip_size=8192, space_id=31, page_no=<optimized out>, offset=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/btr/btr0cur.cc:5612
#11 0x0000000000b5c429 in btr_copy_externally_stored_field (len=<optimized out>, data=0x7fcf4c4e9602 "", zip_size=8192, local_len=0, heap=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/btr/btr0cur.cc:5725
#12 0x0000000000ae9d8d in row_sel_store_mysql_field_func (mysql_rec=0x7fce4c007cd0 "", prebuilt=0x7fce4c055858, rec=0x7fcf4c4e95b4 "\200", index=0x7fceec574df8, offsets=0x7fcf401a4840, field_no=16, templ=0x7fce4c11ea48) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0sel.cc:2822
#13 0x0000000000aeb472 in row_sel_store_mysql_rec (mysql_rec=0x7fce4c007cd0 "", prebuilt=0x7fce4c055858, rec=0x7fcf4c4e95b4 "\200", rec_clust=0, index=0x7fceec574df8, offsets=0x7fcf401a4840) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0sel.cc:2952
#14 0x0000000000aeda4e in row_search_for_mysql (buf=0x7fce4c007cd0 "", mode=1, prebuilt=<optimized out>, match_mode=0, direction=1) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0sel.cc:4867
#15 0x0000000000a022f3 in ha_innobase::general_fetch (this=0x7fce4c002600, buf=0x7fce4c007cd0 "", direction=1, match_mode=0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc:8143
#16 0x0000000000a026c2 in ha_innobase::rnd_next (this=0x7fce4c002600, buf=0x7fce4c007cd0 "") at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc:8369
#17 0x00000000005b4eca in handler::ha_rnd_next (this=0x7fce4c002600, buf=0x7fce4c007cd0 "") at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/handler.cc:2693
#18 0x0000000000888edc in rr_sequential (info=0x7fce4c11d670) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/records.cc:478
#19 0x00000000006fc639 in sub_select (join=0x7fce8c0061e8, join_tab=0x7fce4c11d5e0, end_of_records=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_executor.cc:1256
#20 0x00000000006f815a in evaluate_join_record (join=0x7fce8c0061e8, join_tab=0x7fce4c11d2e0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_executor.cc:1598
#21 0x00000000006fc686 in sub_select (join=0x7fce8c0061e8, join_tab=0x7fce4c11d2e0, end_of_records=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_executor.cc:1273
#22 0x00000000006fd9ab in do_select (join=0x7fce8c0061e8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_executor.cc:930
#23 JOIN::exec (this=0x7fce8c0061e8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_executor.cc:191
#24 0x000000000074a5c0 in mysql_execute_select (free_join=true, select_lex=0x3cdd100, thd=0x3cda630) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_select.cc:1101
#25 mysql_select (thd=0x3cda630, tables=0x7fce8c004fc8, wild_num=0, fields=..., conds=0x7fce8c005f70, order=<optimized out>, group=0x0, having=0x0, select_options=1342177408, result=0x7fce8c006118, unit=0x3cdcab8, select_lex=0x3cdd100) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_select.cc:1222
#26 0x000000000079fe92 in mysql_multi_update (thd=0x3cda630, table_list=0x7fce8c004fc8, fields=0x3cdd220, values=0x3cdd658, conds=0x7fce8c005f70, options=0, handle_duplicates=DUP_ERROR, ignore=false, unit=0x3cdcab8, select_lex=0x3cdd100, result=0x7fcf401a5ee0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_update.cc:1527
#27 0x000000000072488e in mysql_execute_command (thd=0x3cda630) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3579
#28 0x0000000000728628 in mysql_parse (thd=0x3cda630, rawbuf=0x3cdc9f0 "P\303\070\001", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6479
#29 0x000000000072978c in dispatch_command (command=COM_QUERY, thd=0x3cda630, packet=0x7fcf401a6910 "0\246\315\003", packet_length=141) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1355
#30 0x000000000072a987 in do_command (thd=0x3cda630) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1049
#31 0x00000000007d7f57 in threadpool_process_request (thd=0x3cda630) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:312
#32 0x00000000007dac38 in handle_event (connection=0x3c56400) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#33 worker_main (param=0x151d000 <all_groups>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#34 0x00000000009e033a in pfs_spawn_thread (arg=0x7fce98087b30) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#35 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#36 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 58 (LWP 13802):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf405b6d60, mutex=0x151d000 <all_groups>, that=0x7fcf405b6c80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf405b6c60, thread_group=0x151d000 <all_groups>, abstime=0x7fcf405b6d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151d000 <all_groups>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x7fcf18027b40) at /bzr/5.6-QA_dbg/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 57 (LWP 13645):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf4036dd60, mutex=0x151d000 <all_groups>, that=0x7fcf4036dc80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf4036dc60, thread_group=0x151d000 <all_groups>, abstime=0x7fcf4036dd60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151d000 <all_groups>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x7fcf18027b40) at /bzr/5.6-QA_dbg/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 56 (LWP 12702):
+bt
#0  0x0000003636ee8f03 in epoll_wait () from /lib64/libc.so.6
#1  0x00000000007d8917 in io_poll_wait (pollfd=22, native_events=0x7fcf434a4a90, maxevents=1024, timeout_ms=-1) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:281
#2  0x00000000007d8ced in listener (current_thread=<optimized out>, thread_group=0x151d600 <all_groups+1536>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:643
#3  0x00000000007da15c in get_event (current_thread=0x7fcf434a7c60, thread_group=0x151d600 <all_groups+1536>, abstime=0x7fcf434a7d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1093
#4  0x00000000007dabf3 in worker_main (param=0x151d600 <all_groups+1536>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#5  0x00000000009e033a in pfs_spawn_thread (arg=0x3bae610) at /bzr/5.6-QA_dbg/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 55 (LWP 11075):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a73183 in os_cond_wait (fast_mutex=0x3ad0340, cond=0x3ad0380) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  os_event_wait_low (event=0x3ad0340, reset_sig_count=164) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b11391 in sync_array_wait_event (arr=0x349d500, index=1) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0arr.cc:424
#4  0x0000000000b12f4c in rw_lock_s_lock_spin (lock=0x1557820 <dict_operation_lock>, pass=0, file_name=0xdfb0a8 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc", line=720) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0rw.cc:443
#5  0x0000000000ae30e5 in pfs_rw_lock_s_lock_func (line=720, lock=<optimized out>, pass=<optimized out>, file_name=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0rw.ic:685
#6  row_purge_parse_undo_rec (thr=0x3af7858, updated_extern=0x7fcf3a1fbc0f, undo_rec=0x3af4d28 "\016\375\016\002\001", node=0x3af7918) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:720
#7  row_purge (thr=0x3af7858, undo_rec=0x3af4d28 "\016\375\016\002\001", node=0x3af7918) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:859
#8  row_purge_step (thr=0x3af7858) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:942
#9  0x0000000000a9b698 in que_thr_step (thr=0x3af7858) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1115
#10 que_run_threads_low (thr=0x3af7858) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1177
#11 0x0000000000a9bd20 in que_run_threads (thr=0x3af7858) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1218
#12 0x0000000000b067d5 in srv_task_execute () at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:2957
#13 srv_worker_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:3006
#14 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#15 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 54 (LWP 11064):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6cbd3 in os_aio_linux_collect (seg_size=256, segment=1, array=0x34dfc30) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5090
#2  os_aio_linux_handle (global_seg=7, message1=0x7fcf4536dd98, message2=0x7fcf4536dd90, type=0x7fcf4536dd88, space_id=0x7fcf4536dd80) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5235
#3  0x0000000000bcc1a7 in fil_aio_wait (segment=7) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5579
#4  0x0000000000b0ab98 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:479
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 53 (LWP 11063):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6cbd3 in os_aio_linux_collect (seg_size=256, segment=0, array=0x34dfc30) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5090
#2  os_aio_linux_handle (global_seg=6, message1=0x7fcf45d6ed98, message2=0x7fcf45d6ed90, type=0x7fcf45d6ed88, space_id=0x7fcf45d6ed80) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5235
#3  0x0000000000bcc1a7 in fil_aio_wait (segment=6) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5579
#4  0x0000000000b0ab98 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:479
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 52 (LWP 12939):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a73183 in os_cond_wait (fast_mutex=0x3aa0f00, cond=0x3aa0f40) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  os_event_wait_low (event=0x3aa0f00, reset_sig_count=2832) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b11391 in sync_array_wait_event (arr=0x349d500, index=5) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0arr.cc:424
#4  0x0000000000b15c7c in mutex_spin_wait (mutex=0x34ee4d0, file_name=0xe12040 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0flu.cc", line=660) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0sync.cc:584
#5  0x0000000000b8a204 in mutex_enter_func (line=660, file_name=0xe12040 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0flu.cc", mutex=0x34ee4d0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0sync.ic:220
#6  pfs_mutex_enter_func (mutex=0x34ee4d0, file_name=0xe12040 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0flu.cc", line=660) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0sync.ic:251
#7  0x0000000000b8c32d in buf_flush_relocate_on_flush_list (bpage=<optimized out>, dpage=0x7fce78054270) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0flu.cc:660
#8  0x0000000000b953bf in buf_LRU_free_page (bpage=0x7fcf49f4d028, zip=224) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0lru.cc:2124
#9  0x0000000000b65459 in btr_blob_free (block=0x7fcf49f4d028, all=0, mtr=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/btr/btr0cur.cc:4528
#10 0x0000000000b683ce in btr_store_big_rec_extern_fields (index=0x7fce7807eaf8, rec_block=<optimized out>, rec=0x7fcf4a50c11d "", offsets=0x7fce780e63a0, big_rec_vec=0x7fce78106168, btr_mtr=0x7fcf403abb50, op=BTR_STORE_INSERT) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/btr/btr0cur.cc:4910
#11 0x0000000000ab5d2e in row_ins_index_entry_big_rec_func (entry=0x7fcf4a50c11d, big_rec=0x7fce78106168, offsets=0x7fce780e63a0, heap=0x7fcf403ac9d8, index=0x7fce7807eaf8, file=<optimized out>, thd=0x3cb2280, line=2560) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0ins.cc:2872
#12 0x0000000000abb384 in row_ins_clust_index_entry_low (flags=0, mode=<optimized out>, index=0x7fce7807eaf8, n_uniq=<optimized out>, entry=0x7fce7809ac58, n_ext=0, thr=0x7fce78098960) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0ins.cc:2560
#13 0x0000000000abd695 in row_ins_clust_index_entry (index=0x7fce7807eaf8, entry=0x7fce7809ac58, thr=0x7fce78098960, n_ext=0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0ins.cc:2919
#14 0x0000000000abdc77 in row_ins_index_entry (thr=0x7fce78098960, entry=0x7fce7809ac58, index=0x7fce7807eaf8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0ins.cc:3013
#15 row_ins_index_entry_step (thr=0x7fce78098960, node=0x7fce78098498) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0ins.cc:3090
#16 row_ins (thr=0x7fce78098960, node=0x7fce78098498) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0ins.cc:3230
#17 row_ins_step (thr=0x7fce78098960) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0ins.cc:3355
#18 0x0000000000ad091c in row_insert_for_mysql (mysql_rec=<optimized out>, prebuilt=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0mysql.cc:1313
#19 0x0000000000a0dace in ha_innobase::write_row (this=0x7fce780955d0, record=0x7fce780841f0 "") at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc:6940
#20 0x00000000005ba824 in handler::ha_write_row (this=0x7fce780955d0, buf=0x7fce780841f0 "") at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/handler.cc:7448
#21 0x0000000000704e40 in write_record (thd=0x3cb2280, table=0x7fce78083900, info=0x7fcea8005b90, update=0x7fcea8005c08) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_insert.cc:1935
#22 0x0000000000705975 in select_insert::send_data (this=0x7fcea8005b48, values=...) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_insert.cc:3720
#23 0x00000000006f6b48 in end_send (join=0x7fcea8005c88, join_tab=0x7fce7806b9d8, end_of_records=false) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_executor.cc:2775
#24 0x00000000006f815a in evaluate_join_record (join=0x7fcea8005c88, join_tab=0x7fce7806b6d8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_executor.cc:1598
#25 0x00000000006fc686 in sub_select (join=0x7fcea8005c88, join_tab=0x7fce7806b6d8, end_of_records=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_executor.cc:1273
#26 0x00000000006fd9ab in do_select (join=0x7fcea8005c88) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_executor.cc:930
#27 JOIN::exec (this=0x7fcea8005c88) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_executor.cc:191
#28 0x000000000074a5c0 in mysql_execute_select (free_join=true, select_lex=0x3cb4d50, thd=0x3cb2280) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_select.cc:1101
#29 mysql_select (thd=0x3cb2280, tables=0x7fcea80055d0, wild_num=1, fields=..., conds=0x0, order=<optimized out>, group=0x3cb4e50, having=0x0, select_options=3489925888, result=0x7fcea8005b48, unit=0x3cb4708, select_lex=0x3cb4d50) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_select.cc:1222
#30 0x000000000074b0bb in handle_select (thd=0x3cb2280, result=0x7fcea8005b48, setup_tables_done_option=1073741824) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_select.cc:111
#31 0x0000000000727558 in mysql_execute_command (thd=0xffffffffffffdc60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3729
#32 0x0000000000728628 in mysql_parse (thd=0x3cb2280, rawbuf=0x3cb4640 "P\303\070\001", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6479
#33 0x000000000072978c in dispatch_command (command=COM_QUERY, thd=0x3cb2280, packet=0x7fcf403ae910 "\200\"\313\003", packet_length=57) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1355
#34 0x000000000072a987 in do_command (thd=0x3cb2280) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1049
#35 0x00000000007d7f57 in threadpool_process_request (thd=0x3cb2280) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:312
#36 0x00000000007dac38 in handle_event (connection=0x3c52ae0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#37 worker_main (param=0x151d000 <all_groups>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#38 0x00000000009e033a in pfs_spawn_thread (arg=0x7fcec81401f0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#39 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#40 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 51 (LWP 13805):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf40430d60, mutex=0x151d000 <all_groups>, that=0x7fcf40430c80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf40430c60, thread_group=0x151d000 <all_groups>, abstime=0x7fcf40430d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151d000 <all_groups>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x7fce980f71a0) at /bzr/5.6-QA_dbg/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 50 (LWP 12739):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf405f7d60, mutex=0x151e000 <all_groups+4096>, that=0x7fcf405f7c80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf405f7c60, thread_group=0x151e000 <all_groups+4096>, abstime=0x7fcf405f7d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151e000 <all_groups+4096>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x7fcea0007f30) at /bzr/5.6-QA_dbg/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 49 (LWP 12941):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006786a6 in inline_mysql_cond_timedwait (src_line=1306, src_file=0xce1a70 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc", abstime=0x7fcf4032b140, mutex=0x3caa408, that=0x3caa438) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  MDL_wait::timed_wait (this=0x3caa408, owner=0x3caa2d0, abs_timeout=0x7fcf4032b140, set_status_on_timeout=true, wait_state_name=0x0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000007c67c4 in TABLE_SHARE::wait_for_old_version (this=0x7fce78034fb0, thd=0x3caa2d0, abstime=0x7fcf4032b140, deadlock_weight=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/table.cc:3594
#4  0x00000000006ccefe in close_cached_tables (thd=0x3caa2d0, tables=0x0, wait_for_refresh=true, timeout=31536000) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:1040
#5  0x000000000073f8a2 in reload_acl_and_cache (thd=0x3caa2d0, options=4, tables=0x0, write_to_binlog=0x7fcf4032bee0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_reload.cc:275
#6  0x0000000000724204 in mysql_execute_command (thd=0x3caa2d0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:4409
#7  0x0000000000728628 in mysql_parse (thd=0x3caa2d0, rawbuf=0x3cac690 "P\303\070\001", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6479
#8  0x000000000072978c in dispatch_command (command=COM_QUERY, thd=0x3caa2d0, packet=0x7fcf4032c910 "Т\312\003", packet_length=12) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1355
#9  0x000000000072a987 in do_command (thd=0x3caa2d0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1049
#10 0x00000000007d7f57 in threadpool_process_request (thd=0x3caa2d0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:312
#11 0x00000000007dac38 in handle_event (connection=0x3c07e70) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#12 worker_main (param=0x151d000 <all_groups>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#13 0x00000000009e033a in pfs_spawn_thread (arg=0x7fce78099a70) at /bzr/5.6-QA_dbg/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 48 (LWP 12730):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006786a6 in inline_mysql_cond_timedwait (src_line=1306, src_file=0xce1a70 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc", abstime=0x7fcf43199d20, mutex=0x3c92e78, that=0x3c92ea8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  MDL_wait::timed_wait (this=0x3c92e78, owner=0x3c92d40, abs_timeout=0x7fcf43199d20, set_status_on_timeout=false, wait_state_name=0x0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x000000000067a80f in MDL_context::acquire_lock (this=0x3c92e78, mdl_request=0x7fceb40052b8, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2229
#4  0x000000000067ad2b in MDL_context::acquire_locks (this=0x3c92e78, mdl_requests=<optimized out>, lock_wait_timeout=31536000) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2339
#5  0x00000000006c684e in lock_table_names (thd=0x3c92d40, tables_start=0x7fceb4004f18, tables_end=<optimized out>, lock_wait_timeout=<optimized out>, flags=0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4853
#6  0x00000000006cae53 in open_tables (thd=0x3c92d40, start=0x7fcf4319aed8, counter=0x7fcf4319aee0, flags=0, prelocking_strategy=0x7fcf4319a2b0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5066
#7  0x0000000000725f9c in lock_tables_open_and_lock_tables (tables=0x7fceb4004f18, thd=0x3c92d40) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:2343
#8  mysql_execute_command (thd=0x3c92d40) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:4003
#9  0x0000000000728628 in mysql_parse (thd=0x3c92d40, rawbuf=0x3c95100 "P\303\070\001", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6479
#10 0x000000000072978c in dispatch_command (command=COM_QUERY, thd=0x3c92d40, packet=0x7fcf4319b910 "@-\311\003", packet_length=63) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1355
#11 0x000000000072a987 in do_command (thd=0x3c92d40) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1049
#12 0x00000000007d7f57 in threadpool_process_request (thd=0x3c92d40) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:312
#13 0x00000000007dac38 in handle_event (connection=0x3c692a0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#14 worker_main (param=0x151d200 <all_groups+512>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#15 0x00000000009e033a in pfs_spawn_thread (arg=0x7fcebc057f90) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#16 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#17 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 47 (LWP 12756):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006786a6 in inline_mysql_cond_timedwait (src_line=1306, src_file=0xce1a70 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc", abstime=0x7fcf404b1140, mutex=0x3ca2308, that=0x3ca2338) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  MDL_wait::timed_wait (this=0x3ca2308, owner=0x3ca21d0, abs_timeout=0x7fcf404b1140, set_status_on_timeout=true, wait_state_name=0x0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000007c67c4 in TABLE_SHARE::wait_for_old_version (this=0x7fce78000a20, thd=0x3ca21d0, abstime=0x7fcf404b1140, deadlock_weight=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/table.cc:3594
#4  0x00000000006ccefe in close_cached_tables (thd=0x3ca21d0, tables=0x0, wait_for_refresh=true, timeout=31536000) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:1040
#5  0x000000000073f8a2 in reload_acl_and_cache (thd=0x3ca21d0, options=4, tables=0x0, write_to_binlog=0x7fcf404b1ee0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_reload.cc:275
#6  0x0000000000724204 in mysql_execute_command (thd=0x3ca21d0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:4409
#7  0x0000000000728628 in mysql_parse (thd=0x3ca21d0, rawbuf=0x3ca4590 "P\303\070\001", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6479
#8  0x000000000072978c in dispatch_command (command=COM_QUERY, thd=0x3ca21d0, packet=0x7fcf404b2910 "\320!\312\003", packet_length=12) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1355
#9  0x000000000072a987 in do_command (thd=0x3ca21d0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1049
#10 0x00000000007d7f57 in threadpool_process_request (thd=0x3ca21d0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:312
#11 0x00000000007dac38 in handle_event (connection=0x3bf9b90) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#12 worker_main (param=0x151dc00 <all_groups+3072>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#13 0x00000000009e033a in pfs_spawn_thread (arg=0x3cf62b0) at /bzr/5.6-QA_dbg/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 46 (LWP 11079):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a7271b in os_cond_wait_timed (abstime=0x7fcf335fdd00, fast_mutex=0x3abcd20, cond=0x3abcd60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:177
#2  os_event_wait_time_low (event=0x3abcd20, time_in_usec=<optimized out>, reset_sig_count=80) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:723
#3  0x0000000000bc6313 in dict_stats_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/dict/dict0stats_bg.cc:349
#4  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 45 (LWP 12747):
+bt
#0  0x0000003636ee8f03 in epoll_wait () from /lib64/libc.so.6
#1  0x00000000007d8917 in io_poll_wait (pollfd=23, native_events=0x7fcf40531a90, maxevents=1024, timeout_ms=-1) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:281
#2  0x00000000007d8ced in listener (current_thread=<optimized out>, thread_group=0x151d800 <all_groups+2048>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:643
#3  0x00000000007da15c in get_event (current_thread=0x7fcf40534c60, thread_group=0x151d800 <all_groups+2048>, abstime=0x7fcf40534d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1093
#4  0x00000000007dabf3 in worker_main (param=0x151d800 <all_groups+2048>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#5  0x00000000009e033a in pfs_spawn_thread (arg=0x7fceb805a580) at /bzr/5.6-QA_dbg/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 44 (LWP 11057):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6cbd3 in os_aio_linux_collect (seg_size=256, segment=0, array=0x34d2190) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5090
#2  os_aio_linux_handle (global_seg=0, message1=0x7fcf5b8f7d98, message2=0x7fcf5b8f7d90, type=0x7fcf5b8f7d88, space_id=0x7fcf5b8f7d80) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5235
#3  0x0000000000bcc1a7 in fil_aio_wait (segment=0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5579
#4  0x0000000000b0ab98 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:479
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 43 (LWP 12744):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006786a6 in inline_mysql_cond_timedwait (src_line=1306, src_file=0xce1a70 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc", abstime=0x7fcf40572280, mutex=0x3cba4b8, that=0x3cba4e8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  MDL_wait::timed_wait (this=0x3cba4b8, owner=0x3cba380, abs_timeout=0x7fcf40572280, set_status_on_timeout=true, wait_state_name=0x0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x000000000067a62c in MDL_context::acquire_lock (this=0x3cba4b8, mdl_request=0x7fce8c03e158, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2245
#4  0x00000000006bd1c3 in open_table_get_mdl_lock (thd=0x3cba380, ot_ctx=0x7fcf40572ce0, mdl_request=0x7fce8c03e158, flags=<optimized out>, mdl_ticket=0x7fcf40572be8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2527
#5  0x00000000006c70b9 in open_table (thd=0x3cba380, table_list=0x7fce8c03ddb8, ot_ctx=0x7fcf40572ce0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2819
#6  0x00000000006cb58c in open_and_process_table (ot_ctx=0x7fcf40572ce0, has_prelocking_list=false, prelocking_strategy=0x7fcf40572e00, flags=0, counter=0x7fce8c038540, tables=0x7fce8c03ddb8, lex=0x7fce8c038488, thd=0x3cba380) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4592
#7  open_tables (thd=0x3cba380, start=0x7fcf40572dc8, counter=0x7fce8c038540, flags=0, prelocking_strategy=0x7fcf40572e00) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5099
#8  0x00000000006cc299 in open_normal_and_derived_tables (thd=<optimized out>, tables=0x7fce8c03ddb8, flags=0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5798
#9  0x000000000071f95d in execute_sqlcom_select (thd=0x3cba380, all_tables=0x7fce8c03ddb8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:5280
#10 0x00000000007225c7 in mysql_execute_command (thd=0x3cba380) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:2764
#11 0x000000000088ad80 in sp_instr_stmt::exec_core (this=0x7fce8c03e370, thd=0x3cba380, nextp=0x7fcf40574108) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sp_instr.cc:898
#12 0x000000000088c224 in sp_lex_instr::reset_lex_and_exec_core (this=0x7fce8c03e370, thd=0x3cba380, nextp=0x7fcf40574108, open_tables=false) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sp_instr.cc:382
#13 0x000000000088d0b1 in sp_lex_instr::validate_lex_and_execute_core (this=0x7fce8c03e370, thd=0x3cba380, nextp=0x7fcf40574108, open_tables=false) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sp_instr.cc:610
#14 0x000000000088d620 in sp_instr_stmt::execute (this=0x7fce8c03e370, thd=0x3cba380, nextp=0x7fcf40574108) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sp_instr.cc:801
#15 0x000000000068ea82 in sp_head::execute (this=0x7fce8c037a70, thd=0x3cba380, merge_da_on_success=true) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sp_head.cc:645
#16 0x00000000006905cd in sp_head::execute_procedure (this=0x7fce8c037a70, thd=<optimized out>, args=0x3cbd3a8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sp_head.cc:1307
#17 0x0000000000727796 in mysql_execute_command (thd=0xffffffffffffdc5f) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:4783
#18 0x0000000000728628 in mysql_parse (thd=0x3cba380, rawbuf=0x3cbc740 "P\303\070\001", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6479
#19 0x0000000000729ae7 in dispatch_command (command=<optimized out>, thd=0x3cba380, packet=0x7fcf40575910 "\200\243\313\003", packet_length=10) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1430
#20 0x000000000072a987 in do_command (thd=0x3cba380) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1049
#21 0x00000000007d7f57 in threadpool_process_request (thd=0x3cba380) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:312
#22 0x00000000007dac38 in handle_event (connection=0x3c5f320) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#23 worker_main (param=0x151d400 <all_groups+1024>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#24 0x00000000009e033a in pfs_spawn_thread (arg=0x3c85f10) at /bzr/5.6-QA_dbg/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 42 (LWP 12738):
+bt
#0  0x0000003636ee8f03 in epoll_wait () from /lib64/libc.so.6
#1  0x00000000007d8917 in io_poll_wait (pollfd=96, native_events=0x7fcf40635a90, maxevents=1024, timeout_ms=-1) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:281
#2  0x00000000007d8ced in listener (current_thread=<optimized out>, thread_group=0x151e000 <all_groups+4096>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:643
#3  0x00000000007da15c in get_event (current_thread=0x7fcf40638c60, thread_group=0x151e000 <all_groups+4096>, abstime=0x7fcf40638d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1093
#4  0x00000000007dabf3 in worker_main (param=0x151e000 <all_groups+4096>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#5  0x00000000009e033a in pfs_spawn_thread (arg=0x3cbe090) at /bzr/5.6-QA_dbg/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 41 (LWP 12735):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf40679d60, mutex=0x151de00 <all_groups+3584>, that=0x7fcf40679c80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf40679c60, thread_group=0x151de00 <all_groups+3584>, abstime=0x7fcf40679d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151de00 <all_groups+3584>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x3ba0080) at /bzr/5.6-QA_dbg/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 40 (LWP 12733):
+bt
#0  0x0000003636ee8f03 in epoll_wait () from /lib64/libc.so.6
#1  0x00000000007d8917 in io_poll_wait (pollfd=25, native_events=0x7fcf406b7a90, maxevents=1024, timeout_ms=-1) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:281
#2  0x00000000007d8ced in listener (current_thread=<optimized out>, thread_group=0x151dc00 <all_groups+3072>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:643
#3  0x00000000007da15c in get_event (current_thread=0x7fcf406bac60, thread_group=0x151dc00 <all_groups+3072>, abstime=0x7fcf406bad60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1093
#4  0x00000000007dabf3 in worker_main (param=0x151dc00 <all_groups+3072>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#5  0x00000000009e033a in pfs_spawn_thread (arg=0x3ba0080) at /bzr/5.6-QA_dbg/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 39 (LWP 12724):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf4329fd60, mutex=0x151d600 <all_groups+1536>, that=0x7fcf4329fc80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf4329fc60, thread_group=0x151d600 <all_groups+1536>, abstime=0x7fcf4329fd60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151d600 <all_groups+1536>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x3c40f20) at /bzr/5.6-QA_dbg/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 38 (LWP 12749):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006786a6 in inline_mysql_cond_timedwait (src_line=1306, src_file=0xce1a70 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc", abstime=0x7fcf404f10a0, mutex=0x3c9a818, that=0x3c9a848) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  MDL_wait::timed_wait (this=0x3c9a818, owner=0x3c9a6e0, abs_timeout=0x7fcf404f10a0, set_status_on_timeout=true, wait_state_name=0x0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x000000000067a62c in MDL_context::acquire_lock (this=0x3c9a818, mdl_request=0x7fceb8005340, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2245
#4  0x00000000006bd1c3 in open_table_get_mdl_lock (thd=0x3c9a6e0, ot_ctx=0x7fcf404f1b00, mdl_request=0x7fceb8005340, flags=<optimized out>, mdl_ticket=0x7fcf404f1a08) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2527
#5  0x00000000006c70b9 in open_table (thd=0x3c9a6e0, table_list=0x7fceb8004fa0, ot_ctx=0x7fcf404f1b00) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2819
#6  0x00000000006cb58c in open_and_process_table (ot_ctx=0x7fcf404f1b00, has_prelocking_list=false, prelocking_strategy=0x7fcf404f1c20, flags=0, counter=0x3c9cb58, tables=0x7fceb8004fa0, lex=0x3c9caa0, thd=0x3c9a6e0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4592
#7  open_tables (thd=0x3c9a6e0, start=0x7fcf404f1be8, counter=0x3c9cb58, flags=0, prelocking_strategy=0x7fcf404f1c20) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5099
#8  0x00000000006cc299 in open_normal_and_derived_tables (thd=<optimized out>, tables=0x7fceb8004fa0, flags=0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5798
#9  0x000000000079d4cd in mysql_update (thd=0x3c9a6e0, table_list=0x7fceb8004fa0, fields=..., values=..., conds=0x7fceb8005870, order_num=1, order=0x7fceb8005a58, limit=0, handle_duplicates=DUP_ERROR, ignore=false, found_return=0x7fcf404f2ed8, updated_return=0x7fcf404f2ee0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_update.cc:251
#10 0x00000000007220db in mysql_execute_command (thd=0x3c9a6e0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3513
#11 0x0000000000728628 in mysql_parse (thd=0x3c9a6e0, rawbuf=0x3c9caa0 "P\303\070\001", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6479
#12 0x000000000072978c in dispatch_command (command=COM_QUERY, thd=0x3c9a6e0, packet=0x7fcf404f3910 "\340\246\311\003", packet_length=120) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1355
#13 0x000000000072a987 in do_command (thd=0x3c9a6e0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1049
#14 0x00000000007d7f57 in threadpool_process_request (thd=0x3c9a6e0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:312
#15 0x00000000007dac38 in handle_event (connection=0x3bb2c00) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#16 worker_main (param=0x151da00 <all_groups+2560>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#17 0x00000000009e033a in pfs_spawn_thread (arg=0x7fcecc05cde0) at /bzr/5.6-QA_dbg/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 37 (LWP 12703):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf43466d60, mutex=0x151d800 <all_groups+2048>, that=0x7fcf43466c80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf43466c60, thread_group=0x151d800 <all_groups+2048>, abstime=0x7fcf43466d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151d800 <all_groups+2048>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x3bf4eb0) at /bzr/5.6-QA_dbg/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 36 (LWP 13680):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf40165d60, mutex=0x151d000 <all_groups>, that=0x7fcf40165c80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf40165c60, thread_group=0x151d000 <all_groups>, abstime=0x7fcf40165d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151d000 <all_groups>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x7fcf18027b40) at /bzr/5.6-QA_dbg/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 13804):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf401e7d60, mutex=0x151d000 <all_groups>, that=0x7fcf401e7c80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf401e7c60, thread_group=0x151d000 <all_groups>, abstime=0x7fcf401e7d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151d000 <all_groups>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x7fce98086f30) at /bzr/5.6-QA_dbg/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 34 (LWP 12757):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf40471d60, mutex=0x151d200 <all_groups+512>, that=0x7fcf40471c80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf40471c60, thread_group=0x151d200 <all_groups+512>, abstime=0x7fcf40471d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151d200 <all_groups+512>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x7fcec0067740) at /bzr/5.6-QA_dbg/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 33 (LWP 11078):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a73183 in os_cond_wait (fast_mutex=0x349f8b0, cond=0x349f8f0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  os_event_wait_low (event=0x349f8b0, reset_sig_count=1) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b892dc in buf_dump_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/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 32 (LWP 13756):
+bt
#0  0x0000003636ee8f03 in epoll_wait () from /lib64/libc.so.6
#1  0x00000000007d8917 in io_poll_wait (pollfd=19, native_events=0x7fcf40121a90, maxevents=1024, timeout_ms=-1) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:281
#2  0x00000000007d8ced in listener (current_thread=<optimized out>, thread_group=0x151d000 <all_groups>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:643
#3  0x00000000007da15c in get_event (current_thread=0x7fcf40124c60, thread_group=0x151d000 <all_groups>, abstime=0x7fcf40124d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1093
#4  0x00000000007dabf3 in worker_main (param=0x151d000 <all_groups>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#5  0x00000000009e033a in pfs_spawn_thread (arg=0x7fcf18027b40) at /bzr/5.6-QA_dbg/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 31 (LWP 13405):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf40269d60, mutex=0x151d000 <all_groups>, that=0x7fcf40269c80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf40269c60, thread_group=0x151d000 <all_groups>, abstime=0x7fcf40269d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151d000 <all_groups>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x7fce68040de0) at /bzr/5.6-QA_dbg/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 30 (LWP 13806):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf43362d60, mutex=0x151d000 <all_groups>, that=0x7fcf43362c80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf43362c60, thread_group=0x151d000 <all_groups>, abstime=0x7fcf43362d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151d000 <all_groups>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x7fce800f6ef0) at /bzr/5.6-QA_dbg/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 29 (LWP 11076):
+bt
#0  0x000000363720b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a73183 in os_cond_wait (fast_mutex=0x3ad0340, cond=0x3ad0380) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:214
#2  os_event_wait_low (event=0x3ad0340, reset_sig_count=164) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b11391 in sync_array_wait_event (arr=0x349d500, index=0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0arr.cc:424
#4  0x0000000000b12f4c in rw_lock_s_lock_spin (lock=0x1557820 <dict_operation_lock>, pass=0, file_name=0xdfb0a8 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc", line=720) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/sync/sync0rw.cc:443
#5  0x0000000000ae30e5 in pfs_rw_lock_s_lock_func (line=720, lock=<optimized out>, pass=<optimized out>, file_name=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/include/sync0rw.ic:685
#6  row_purge_parse_undo_rec (thr=0x3af7a98, updated_extern=0x7fcf33ffec0f, undo_rec=0x3af48f8 "\020\270\016", node=0x3af7c48) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:720
#7  row_purge (thr=0x3af7a98, undo_rec=0x3af48f8 "\020\270\016", node=0x3af7c48) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:859
#8  row_purge_step (thr=0x3af7a98) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0purge.cc:942
#9  0x0000000000a9b698 in que_thr_step (thr=0x3af7a98) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1115
#10 que_run_threads_low (thr=0x3af7a98) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1177
#11 0x0000000000a9bd20 in que_run_threads (thr=0x3af7a98) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/que/que0que.cc:1218
#12 0x0000000000b067d5 in srv_task_execute () at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:2957
#13 srv_worker_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:3006
#14 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#15 0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 28 (LWP 13419):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf381efd60, mutex=0x151d000 <all_groups>, that=0x7fcf381efc80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf381efc60, thread_group=0x151d000 <all_groups>, abstime=0x7fcf381efd60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151d000 <all_groups>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x7fcf18027b40) at /bzr/5.6-QA_dbg/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 27 (LWP 12728):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006786a6 in inline_mysql_cond_timedwait (src_line=1306, src_file=0xce1a70 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc", abstime=0x7fcf4321be10, mutex=0x3cd27b8, that=0x3cd27e8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  MDL_wait::timed_wait (this=0x3cd27b8, owner=0x3cd2680, abs_timeout=0x7fcf4321be10, set_status_on_timeout=false, wait_state_name=0x0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x000000000067a80f in MDL_context::acquire_lock (this=0x3cd27b8, mdl_request=0x7fcea40051f0, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2229
#4  0x000000000067ad2b in MDL_context::acquire_locks (this=0x3cd27b8, mdl_requests=<optimized out>, lock_wait_timeout=31536000) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2339
#5  0x00000000006c684e in lock_table_names (thd=0x3cd2680, tables_start=0x7fcea4004e50, tables_end=<optimized out>, lock_wait_timeout=<optimized out>, flags=0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4853
#6  0x000000000077ec95 in mysql_rm_table (thd=0x3cd2680, tables=0x7fcea4004e50, if_exists=1 '\001', drop_temporary=0 '\000') at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:2110
#7  0x0000000000724292 in mysql_execute_command (thd=0x3cd2680) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3848
#8  0x0000000000728628 in mysql_parse (thd=0x3cd2680, rawbuf=0x3cd4a40 "P\303\070\001", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6479
#9  0x000000000072978c in dispatch_command (command=COM_QUERY, thd=0x3cd2680, packet=0x7fcf4321d910 "\200&\315\003", packet_length=23) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1355
#10 0x000000000072a987 in do_command (thd=0x3cd2680) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1049
#11 0x00000000007d7f57 in threadpool_process_request (thd=0x3cd2680) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:312
#12 0x00000000007dac38 in handle_event (connection=0x3bde5a0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#13 worker_main (param=0x151da00 <all_groups+2560>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#14 0x00000000009e033a in pfs_spawn_thread (arg=0x3bae610) at /bzr/5.6-QA_dbg/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 26 (LWP 12726):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006786a6 in inline_mysql_cond_timedwait (src_line=1306, src_file=0xce1a70 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc", abstime=0x7fcf4325c310, mutex=0x3cca6b8, that=0x3cca6e8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  MDL_wait::timed_wait (this=0x3cca6b8, owner=0x3cca580, abs_timeout=0x7fcf4325c310, set_status_on_timeout=true, wait_state_name=0x0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x000000000067a62c in MDL_context::acquire_lock (this=0x3cca6b8, mdl_request=0x7fce980052f0, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2245
#4  0x00000000006bd1c3 in open_table_get_mdl_lock (thd=0x3cca580, ot_ctx=0x7fcf4325cd70, mdl_request=0x7fce980052f0, flags=<optimized out>, mdl_ticket=0x7fcf4325cc78) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2527
#5  0x00000000006c70b9 in open_table (thd=0x3cca580, table_list=0x7fce98004f50, ot_ctx=0x7fcf4325cd70) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2819
#6  0x00000000006cb58c in open_and_process_table (ot_ctx=0x7fcf4325cd70, has_prelocking_list=false, prelocking_strategy=0x7fcf4325ce90, flags=0, counter=0x3ccc9f8, tables=0x7fce98004f50, lex=0x3ccc940, thd=0x3cca580) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4592
#7  open_tables (thd=0x3cca580, start=0x7fcf4325ce58, counter=0x3ccc9f8, flags=0, prelocking_strategy=0x7fcf4325ce90) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5099
#8  0x00000000006cc299 in open_normal_and_derived_tables (thd=<optimized out>, tables=0x7fce98004f50, flags=0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5798
#9  0x000000000070b8d4 in mysql_insert (thd=0x3cca580, table_list=0x7fce98004f50, fields=..., values_list=..., update_fields=..., update_values=..., duplic=DUP_REPLACE, ignore=false) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_insert.cc:738
#10 0x0000000000724bf9 in mysql_execute_command (thd=0x3cca580) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:3649
#11 0x0000000000728628 in mysql_parse (thd=0x3cca580, rawbuf=0x3ccc940 "P\303\070\001", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6479
#12 0x000000000072978c in dispatch_command (command=COM_QUERY, thd=0x3cca580, packet=0x7fcf4325e910 "\200\245\314\003", packet_length=82) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1355
#13 0x000000000072a987 in do_command (thd=0x3cca580) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1049
#14 0x00000000007d7f57 in threadpool_process_request (thd=0x3cca580) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:312
#15 0x00000000007dac38 in handle_event (connection=0x3bc8780) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#16 worker_main (param=0x151d800 <all_groups+2048>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#17 0x00000000009e033a in pfs_spawn_thread (arg=0x3bae610) at /bzr/5.6-QA_dbg/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 25 (LWP 12720):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf43321d60, mutex=0x151d200 <all_groups+512>, that=0x7fcf43321c80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf43321c60, thread_group=0x151d200 <all_groups+512>, abstime=0x7fcf43321d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151d200 <all_groups+512>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x3bae610) at /bzr/5.6-QA_dbg/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 24 (LWP 11071):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a7271b in os_cond_wait_timed (abstime=0x7fcf410bbd30, fast_mutex=0x349f820, cond=0x349f860) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:177
#2  os_event_wait_time_low (event=0x349f820, time_in_usec=<optimized out>, reset_sig_count=1) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:723
#3  0x0000000000b08c6d in srv_monitor_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:1831
#4  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 23 (LWP 11255):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006786a6 in inline_mysql_cond_timedwait (src_line=1306, src_file=0xce1a70 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc", abstime=0x7fcf434e6620, mutex=0x3c82168, that=0x3c82198) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  MDL_wait::timed_wait (this=0x3c82168, owner=0x3c82030, abs_timeout=0x7fcf434e6620, set_status_on_timeout=true, wait_state_name=0x0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x000000000067a62c in MDL_context::acquire_lock (this=0x3c82168, mdl_request=0x7fcebc0054e0, lock_wait_timeout=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:2245
#4  0x00000000006bd1c3 in open_table_get_mdl_lock (thd=0x3c82030, ot_ctx=0x7fcf434e7080, mdl_request=0x7fcebc0054e0, flags=<optimized out>, mdl_ticket=0x7fcf434e6f88) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2527
#5  0x00000000006c70b9 in open_table (thd=0x3c82030, table_list=0x7fcebc005140, ot_ctx=0x7fcf434e7080) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:2819
#6  0x00000000006cb58c in open_and_process_table (ot_ctx=0x7fcf434e7080, has_prelocking_list=false, prelocking_strategy=0x7fcf434e71a0, flags=0, counter=0x3c844a8, tables=0x7fcebc005140, lex=0x3c843f0, thd=0x3c82030) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:4592
#7  open_tables (thd=0x3c82030, start=0x7fcf434e7168, counter=0x3c844a8, flags=0, prelocking_strategy=0x7fcf434e71a0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5099
#8  0x00000000006cc299 in open_normal_and_derived_tables (thd=<optimized out>, tables=0x7fcebc005140, flags=0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:5798
#9  0x000000000071f95d in execute_sqlcom_select (thd=0x3c82030, all_tables=0x7fcebc005140) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:5280
#10 0x00000000007225c7 in mysql_execute_command (thd=0x3c82030) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:2764
#11 0x0000000000728628 in mysql_parse (thd=0x3c82030, rawbuf=0x3c843f0 "P\303\070\001", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6479
#12 0x000000000072978c in dispatch_command (command=COM_QUERY, thd=0x3c82030, packet=0x7fcf434e8910 "0 \310\003", packet_length=117) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1355
#13 0x000000000072a987 in do_command (thd=0x3c82030) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1049
#14 0x00000000007d7f57 in threadpool_process_request (thd=0x3c82030) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:312
#15 0x00000000007dac38 in handle_event (connection=0x3c6d1c0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#16 worker_main (param=0x151d400 <all_groups+1024>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#17 0x00000000009e033a in pfs_spawn_thread (arg=0x7fceec00bf60) at /bzr/5.6-QA_dbg/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 22 (LWP 12710):
+bt
#0  0x0000003636ee8f03 in epoll_wait () from /lib64/libc.so.6
#1  0x00000000007d8917 in io_poll_wait (pollfd=24, native_events=0x7fcf43422a90, maxevents=1024, timeout_ms=-1) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:281
#2  0x00000000007d8ced in listener (current_thread=<optimized out>, thread_group=0x151da00 <all_groups+2560>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:643
#3  0x00000000007da15c in get_event (current_thread=0x7fcf43425c60, thread_group=0x151da00 <all_groups+2560>, abstime=0x7fcf43425d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1093
#4  0x00000000007dabf3 in worker_main (param=0x151da00 <all_groups+2560>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#5  0x00000000009e033a in pfs_spawn_thread (arg=0x3c1af80) at /bzr/5.6-QA_dbg/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 21 (LWP 12712):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf433e4d60, mutex=0x151dc00 <all_groups+3072>, that=0x7fcf433e4c80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf433e4c60, thread_group=0x151dc00 <all_groups+3072>, abstime=0x7fcf433e4d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151dc00 <all_groups+3072>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x3c455e0) at /bzr/5.6-QA_dbg/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 20 (LWP 11062):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6cbd3 in os_aio_linux_collect (seg_size=256, segment=3, array=0x349d460) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5090
#2  os_aio_linux_handle (global_seg=5, message1=0x7fcf4676fd98, message2=0x7fcf4676fd90, type=0x7fcf4676fd88, space_id=0x7fcf4676fd80) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5235
#3  0x0000000000bcc1a7 in fil_aio_wait (segment=5) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5579
#4  0x0000000000b0ab98 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:479
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 19 (LWP 11072):
+bt
#0  0x0000003636ee14f3 in select () from /lib64/libc.so.6
#1  0x0000000000a7350f in os_thread_sleep (tm=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0thread.cc:255
#2  0x0000000000b06bc5 in srv_master_sleep () at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:2818
#3  srv_master_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:2862
#4  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 18 (LWP 11073):
+bt
#0  0x0000003636ecf3a7 in sched_yield () from /lib64/libc.so.6
#1  0x0000000000b1ff55 in trx_purge_wait_for_workers_to_complete (purge_sys=0x3adc158) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/trx/trx0purge.cc:1143
#2  trx_purge (n_purge_threads=<optimized out>, batch_size=300, truncate=false) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/trx/trx0purge.cc:1257
#3  0x0000000000b097a9 in srv_do_purge (n_total_purged=<optimized out>, n_threads=4) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:3106
#4  srv_purge_coordinator_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:3283
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 17 (LWP 11254):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf43529d60, mutex=0x151d400 <all_groups+1024>, that=0x7fcf43529c80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf43529c60, thread_group=0x151d400 <all_groups+1024>, abstime=0x7fcf43529d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151d400 <all_groups+1024>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x3c40f20) at /bzr/5.6-QA_dbg/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 16 (LWP 11080):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a7271b in os_cond_wait_timed (abstime=0x7fcf32bfcc90, fast_mutex=0x3adb600, cond=0x3adb640) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:177
#2  os_event_wait_time_low (event=0x3adb600, time_in_usec=<optimized out>, reset_sig_count=1) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:723
#3  0x0000000000b428b1 in ib_wqueue_timedwait (wq=0x3ad6b18, wait_in_usecs=5000000) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/ut/ut0wqueue.cc:154
#4  0x0000000000bfb210 in fts_optimize_thread (arg=0x3ad6b18) at /bzr/5.6-QA_dbg/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 15 (LWP 11070):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a7271b in os_cond_wait_timed (abstime=0x7fcf41abccc0, fast_mutex=0x349f790, cond=0x349f7d0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:177
#2  os_event_wait_time_low (event=0x349f790, time_in_usec=<optimized out>, reset_sig_count=1) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:723
#3  0x0000000000b077a2 in srv_error_monitor_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0srv.cc:2093
#4  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 14 (LWP 11059):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6cbd3 in os_aio_linux_collect (seg_size=256, segment=0, array=0x349d460) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5090
#2  os_aio_linux_handle (global_seg=2, message1=0x7fcf48572d98, message2=0x7fcf48572d90, type=0x7fcf48572d88, space_id=0x7fcf48572d80) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5235
#3  0x0000000000bcc1a7 in fil_aio_wait (segment=2) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5579
#4  0x0000000000b0ab98 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:479
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 13 (LWP 11083):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006786a6 in inline_mysql_cond_timedwait (src_line=1306, src_file=0xce1a70 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc", abstime=0x7fcf43569140, mutex=0x3ceab48, that=0x3ceab78) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  MDL_wait::timed_wait (this=0x3ceab48, owner=0x3ceaa10, abs_timeout=0x7fcf43569140, set_status_on_timeout=true, wait_state_name=0x0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000007c67c4 in TABLE_SHARE::wait_for_old_version (this=0x7fce78000a20, thd=0x3ceaa10, abstime=0x7fcf43569140, deadlock_weight=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/table.cc:3594
#4  0x00000000006ccefe in close_cached_tables (thd=0x3ceaa10, tables=0x0, wait_for_refresh=true, timeout=31536000) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:1040
#5  0x000000000073f8a2 in reload_acl_and_cache (thd=0x3ceaa10, options=4, tables=0x0, write_to_binlog=0x7fcf43569ee0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_reload.cc:275
#6  0x0000000000724204 in mysql_execute_command (thd=0x3ceaa10) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:4409
#7  0x0000000000728628 in mysql_parse (thd=0x3ceaa10, rawbuf=0x3cecdd0 "P\303\070\001", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6479
#8  0x000000000072978c in dispatch_command (command=COM_QUERY, thd=0x3ceaa10, packet=0x7fcf4356a910 "\020\252\316\003", packet_length=12) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1355
#9  0x000000000072a987 in do_command (thd=0x3ceaa10) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1049
#10 0x00000000007d7f57 in threadpool_process_request (thd=0x3ceaa10) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:312
#11 0x00000000007dac38 in handle_event (connection=0x3c732c0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#12 worker_main (param=0x151d200 <all_groups+512>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#13 0x00000000009e033a in pfs_spawn_thread (arg=0x3bf4eb0) at /bzr/5.6-QA_dbg/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 12 (LWP 11065):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6cbd3 in os_aio_linux_collect (seg_size=256, segment=2, array=0x34dfc30) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5090
#2  os_aio_linux_handle (global_seg=8, message1=0x7fcf4496cd98, message2=0x7fcf4496cd90, type=0x7fcf4496cd88, space_id=0x7fcf4496cd80) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5235
#3  0x0000000000bcc1a7 in fil_aio_wait (segment=8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5579
#4  0x0000000000b0ab98 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:479
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 11 (LWP 11061):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6cbd3 in os_aio_linux_collect (seg_size=256, segment=2, array=0x349d460) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5090
#2  os_aio_linux_handle (global_seg=4, message1=0x7fcf47170d98, message2=0x7fcf47170d90, type=0x7fcf47170d88, space_id=0x7fcf47170d80) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5235
#3  0x0000000000bcc1a7 in fil_aio_wait (segment=4) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5579
#4  0x0000000000b0ab98 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:479
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 10 (LWP 11069):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a7271b in os_cond_wait_timed (abstime=0x7fcf424bdd00, fast_mutex=0x3ab5710, cond=0x3ab5750) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:177
#2  os_event_wait_time_low (event=0x3ab5710, time_in_usec=<optimized out>, reset_sig_count=10) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0sync.cc:723
#3  0x0000000000a50051 in lock_wait_timeout_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/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 9 (LWP 14155):
+bt
#0  0x0000003636ee8f03 in epoll_wait () from /lib64/libc.so.6
#1  0x00000000007d8917 in io_poll_wait (pollfd=21, native_events=0x7fcf4009fa90, maxevents=1024, timeout_ms=-1) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:281
#2  0x00000000007d8ced in listener (current_thread=<optimized out>, thread_group=0x151d400 <all_groups+1024>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:643
#3  0x00000000007da15c in get_event (current_thread=0x7fcf400a2c60, thread_group=0x151d400 <all_groups+1024>, abstime=0x7fcf400a2d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1093
#4  0x00000000007dabf3 in worker_main (param=0x151d400 <all_groups+1024>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#5  0x00000000009e033a in pfs_spawn_thread (arg=0x7fceec0fd7e0) at /bzr/5.6-QA_dbg/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 8 (LWP 11081):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007d9666 in inline_mysql_cond_timedwait (src_line=505, abstime=0x7fcf42f47d60, mutex=<optimized out>, that=<optimized out>, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  timer_thread (param=0x152d020 <pool_timer>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:505
#3  0x00000000009e033a in pfs_spawn_thread (arg=0x3b37e60) at /bzr/5.6-QA_dbg/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 7 (LWP 11049):
+bt
#0  0x0000003636edf253 in poll () from /lib64/libc.so.6
#1  0x00000000005a450a in handle_connections_sockets () at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mysqld.cc:6259
#2  0x00000000005ab4eb in mysqld_main (argc=73, argv=0x33a1208) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mysqld.cc:5674
#3  0x0000003636e1ecdd in __libc_start_main () from /lib64/libc.so.6
#4  0x000000000059c785 in _start ()

Thread 6 (LWP 11058):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6cbd3 in os_aio_linux_collect (seg_size=256, segment=0, array=0x34c46f0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5090
#2  os_aio_linux_handle (global_seg=1, message1=0x7fcf48f73d98, message2=0x7fcf48f73d90, type=0x7fcf48f73d88, space_id=0x7fcf48f73d80) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5235
#3  0x0000000000bcc1a7 in fil_aio_wait (segment=1) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5579
#4  0x0000000000b0ab98 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:479
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 5 (LWP 14192):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000006786a6 in inline_mysql_cond_timedwait (src_line=1306, src_file=0xce1a70 "/bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc", abstime=0x7fcf40060140, mutex=0x3cc25b8, that=0x3cc25e8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  MDL_wait::timed_wait (this=0x3cc25b8, owner=0x3cc2480, abs_timeout=0x7fcf40060140, set_status_on_timeout=true, wait_state_name=0x0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mdl.cc:1306
#3  0x00000000007c67c4 in TABLE_SHARE::wait_for_old_version (this=0x7fce78034fb0, thd=0x3cc2480, abstime=0x7fcf40060140, deadlock_weight=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/table.cc:3594
#4  0x00000000006ccefe in close_cached_tables (thd=0x3cc2480, tables=0x0, wait_for_refresh=true, timeout=31536000) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_base.cc:1040
#5  0x000000000073f8a2 in reload_acl_and_cache (thd=0x3cc2480, options=4, tables=0x0, write_to_binlog=0x7fcf40060ee0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_reload.cc:275
#6  0x0000000000724204 in mysql_execute_command (thd=0x3cc2480) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:4409
#7  0x0000000000728628 in mysql_parse (thd=0x3cc2480, rawbuf=0x3cc4840 "P\303\070\001", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6479
#8  0x000000000072978c in dispatch_command (command=COM_QUERY, thd=0x3cc2480, packet=0x7fcf40061910 "\200$\314\003", packet_length=12) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1355
#9  0x000000000072a987 in do_command (thd=0x3cc2480) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1049
#10 0x00000000007d7f57 in threadpool_process_request (thd=0x3cc2480) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:312
#11 0x00000000007dac38 in handle_event (connection=0x3c01040) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#12 worker_main (param=0x151d400 <all_groups+1024>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#13 0x00000000009e033a in pfs_spawn_thread (arg=0x7fceeca75e20) at /bzr/5.6-QA_dbg/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 4 (LWP 11066):
+bt
#0  0x0000003636a00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a6cbd3 in os_aio_linux_collect (seg_size=256, segment=3, array=0x34dfc30) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5090
#2  os_aio_linux_handle (global_seg=9, message1=0x7fcf43f6bd98, message2=0x7fcf43f6bd90, type=0x7fcf43f6bd88, space_id=0x7fcf43f6bd80) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/os/os0file.cc:5235
#3  0x0000000000bcc1a7 in fil_aio_wait (segment=9) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:5579
#4  0x0000000000b0ab98 in io_handler_thread (arg=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:479
#5  0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003636ee890d in clone () from /lib64/libc.so.6

Thread 3 (LWP 13996):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf400e3d60, mutex=0x151d000 <all_groups>, that=0x7fcf400e3c80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf400e3c60, thread_group=0x151d000 <all_groups>, abstime=0x7fcf400e3d60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151d000 <all_groups>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x7fcf18027b40) at /bzr/5.6-QA_dbg/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 13938):
+bt
#0  0x000000363720b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000007da0a6 in inline_mysql_cond_timedwait (src_line=1131, abstime=0x7fcf402aad60, mutex=0x151d000 <all_groups>, that=0x7fcf402aac80, src_file=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/include/mysql/psi/mysql_thread.h:1199
#2  get_event (current_thread=0x7fcf402aac60, thread_group=0x151d000 <all_groups>, abstime=0x7fcf402aad60) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1131
#3  0x00000000007dabf3 in worker_main (param=0x151d000 <all_groups>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1515
#4  0x00000000009e033a in pfs_spawn_thread (arg=0x7fcf18027b40) at /bzr/5.6-QA_dbg/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 13807):
+bt
#0  0x000000363720c69c in pthread_kill () from /lib64/libpthread.so.0
#1  0x00000000006874ae in handle_fatal_signal (sig=6) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/signal_handler.cc:251
#2  <signal handler called>
#3  0x0000003636e328a5 in raise () from /lib64/libc.so.6
#4  0x0000003636e34085 in abort () from /lib64/libc.so.6
#5  0x0000000000b8ba4a in buf_pool_get_dirty_pages_count (buf_pool=0x34ee028, id=78) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0flu.cc:2674
#6  0x0000000000b91f70 in buf_flush_dirty_pages (buf_pool=0x34ee028, id=78, flush=false, trx=0x0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0lru.cc:731
#7  0x0000000000b9466d in buf_LRU_remove_pages (trx=0x0, buf_remove=<optimized out>, id=78, buf_pool=0x34ee028) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0lru.cc:911
#8  buf_LRU_flush_or_remove_pages (id=78, buf_remove=<optimized out>, trx=0x0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0lru.cc:967
#9  0x0000000000bd245b in fil_delete_tablespace (id=78, buf_remove=BUF_REMOVE_FLUSH_NO_WRITE) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/fil/fil0fil.cc:2753
#10 0x0000000000ad2f90 in row_drop_table_for_mysql (name=0x7fce64075f01 "\330", <incomplete sequence \341>, trx=<optimized out>, drop_db=<optimized out>, nonatomic=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/row/row0mysql.cc:4242
#11 0x0000000000a1632c in ha_innobase::commit_inplace_alter_table (this=0x7fce5403a600, altered_table=0x7fce54048e90, ha_alter_info=0x7fcf40226970, commit=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/handler0alter.cc:5735
#12 0x000000000077f2ab in mysql_inplace_alter_table (thd=0x3c8ad90, table_list=0x7fceed859408, table=0x7fce540fe190, altered_table=0x7fce54048e90, ha_alter_info=0x7fcf40226970, inplace_supported=HA_ALTER_INPLACE_NO_LOCK_AFTER_PREPARE, target_mdl_request=0x7fcf40226670, alter_ctx=0x7fcf40225050) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:6546
#13 0x0000000000784e97 in mysql_alter_table (thd=<optimized out>, new_db=0x7fce54048e90 "`\227\004T\316\177", new_name=0x7fce00000000 <Address 0x7fce00000000 out of bounds>, create_info=<optimized out>, table_list=0x7fceed859408, alter_info=0x7fcf40227110, order_num=0, order=0x0, ignore=false) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_table.cc:8399
#14 0x0000000000894957 in Sql_cmd_alter_table::execute (this=<optimized out>, thd=0x3c8ad90) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_alter.cc:317
#15 0x0000000000721e3b in mysql_execute_command (thd=0x3c8ad90) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:5159
#16 0x0000000000728628 in mysql_parse (thd=0x3c8ad90, rawbuf=0x3c8d150 "P\303\070\001", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:6479
#17 0x000000000072978c in dispatch_command (command=COM_QUERY, thd=0x3c8ad90, packet=0x7fcf40228910 "\220\255\310\003", packet_length=62) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1355
#18 0x000000000072a987 in do_command (thd=0x3c8ad90) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_parse.cc:1049
#19 0x00000000007d7f57 in threadpool_process_request (thd=0x3c8ad90) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_common.cc:312
#20 0x00000000007dac38 in handle_event (connection=0x3c52160) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1466
#21 worker_main (param=0x151d000 <all_groups>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/threadpool_unix.cc:1519
#22 0x00000000009e033a in pfs_spawn_thread (arg=0x7fce800f1df0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/perfschema/pfs.cc:1858
#23 0x0000003637207851 in start_thread () from /lib64/libpthread.so.0
#24 0x0000003636ee890d in clone () from /lib64/libc.so.6
(gdb) +set logging off