(gdb) +thread apply all bt

Thread 24 (LWP 18110):
+bt
#0  0x0000003fdda00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a68f83 in os_aio_linux_collect (seg_size=256, segment=0, array=0x21e4770) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5089
#2  os_aio_linux_handle (global_seg=1, message1=0x7fcc02d08d98, message2=0x7fcc02d08d90, type=0x7fcc02d08d88, space_id=0x7fcc02d08d80) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5234
#3  0x0000000000bbdc67 in fil_aio_wait (segment=1) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/fil/fil0fil.cc:5575
#4  0x0000000000b055e8 in io_handler_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/srv/srv0start.cc:479
#5  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#6  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 23 (LWP 18129):
+bt
#0  0x000000340cc0f2a5 in sigwait () from /lib64/libpthread.so.0
#1  0x00000000005a1edb in signal_hand (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/mysqld.cc:3159
#2  0x00000000009dd6c9 in pfs_spawn_thread (arg=0x25db100) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/perfschema/pfs.cc:1855
#3  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#4  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 22 (LWP 18127):
+bt
#0  0x000000340cc0b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a6eacb in os_cond_wait_timed (abstime=0x7fcbf864cd00, fast_mutex=0x2588e40, cond=0x2588e80) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0sync.cc:177
#2  os_event_wait_time_low (event=0x2588e40, time_in_usec=<optimized out>, reset_sig_count=138) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0sync.cc:723
#3  0x0000000000bb82e7 in dict_stats_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/dict/dict0stats_bg.cc:349
#4  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#5  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 21 (LWP 18125):
+bt
#0  0x000000340c4e14f3 in select () from /lib64/libc.so.6
#1  0x0000000000a6f8bf in os_thread_sleep (tm=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0thread.cc:255
#2  0x0000000000b8174a in page_cleaner_sleep_if_needed (next_loop_time=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/buf/buf0flu.cc:2377
#3  buf_flush_page_cleaner_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/buf/buf0flu.cc:2418
#4  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#5  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 20 (LWP 18122):
+bt
#0  0x000000340cc0b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a6eacb in os_cond_wait_timed (abstime=0x7fcbfb851d30, fast_mutex=0x21be8e0, cond=0x21be920) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0sync.cc:177
#2  os_event_wait_time_low (event=0x21be8e0, time_in_usec=<optimized out>, reset_sig_count=1) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0sync.cc:723
#3  0x0000000000b032bc in srv_monitor_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/srv/srv0srv.cc:1822
#4  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#5  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 19 (LWP 18124):
+bt
#0  0x000000340cc0b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a6f533 in os_cond_wait (fast_mutex=0x21be7c0, cond=0x21be800) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0sync.cc:214
#2  os_event_wait_low (event=0x21be7c0, reset_sig_count=3151) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b0404c in srv_purge_coordinator_suspend (rseg_history_len=1625, slot=0x21be5d0) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/srv/srv0srv.cc:3140
#4  srv_purge_coordinator_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/srv/srv0srv.cc:3257
#5  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#6  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 18 (LWP 18117):
+bt
#0  0x0000003fdda00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a68f83 in os_aio_linux_collect (seg_size=256, segment=2, array=0x21ffcb0) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5089
#2  os_aio_linux_handle (global_seg=8, message1=0x7fcbfe701d98, message2=0x7fcbfe701d90, type=0x7fcbfe701d88, space_id=0x7fcbfe701d80) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5234
#3  0x0000000000bbdc67 in fil_aio_wait (segment=8) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/fil/fil0fil.cc:5575
#4  0x0000000000b055e8 in io_handler_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/srv/srv0start.cc:479
#5  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#6  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 17 (LWP 18128):
+bt
#0  0x000000340cc0b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a6eacb in os_cond_wait_timed (abstime=0x7fcbf7c4bc90, fast_mutex=0x25b98d0, cond=0x25b9910) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0sync.cc:177
#2  os_event_wait_time_low (event=0x25b98d0, time_in_usec=<optimized out>, reset_sig_count=1) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0sync.cc:723
#3  0x0000000000b38cc0 in ib_wqueue_timedwait (wq=0x25b9718, wait_in_usecs=5000000) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/ut/ut0wqueue.cc:154
#4  0x0000000000bebe50 in fts_optimize_thread (arg=0x25b9718) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/fts/fts0opt.cc:2932
#5  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#6  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 16 (LWP 18118):
+bt
#0  0x0000003fdda00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a68f83 in os_aio_linux_collect (seg_size=256, segment=3, array=0x21ffcb0) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5089
#2  os_aio_linux_handle (global_seg=9, message1=0x7fcbfdd00d98, message2=0x7fcbfdd00d90, type=0x7fcbfdd00d88, space_id=0x7fcbfdd00d80) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5234
#3  0x0000000000bbdc67 in fil_aio_wait (segment=9) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/fil/fil0fil.cc:5575
#4  0x0000000000b055e8 in io_handler_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/srv/srv0start.cc:479
#5  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#6  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 15 (LWP 18123):
+bt
#0  0x000000340c4e14f3 in select () from /lib64/libc.so.6
#1  0x0000000000a6f8bf in os_thread_sleep (tm=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0thread.cc:255
#2  0x0000000000b0131b in srv_master_sleep () at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/srv/srv0srv.cc:2803
#3  srv_master_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/srv/srv0srv.cc:2847
#4  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#5  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 14 (LWP 18126):
+bt
#0  0x000000340cc0b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a6f533 in os_cond_wait (fast_mutex=0x21be970, cond=0x21be9b0) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0sync.cc:214
#2  os_event_wait_low (event=0x21be970, reset_sig_count=1) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0sync.cc:610
#3  0x0000000000b7c8ac in buf_dump_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/buf/buf0dump.cc:594
#4  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#5  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 13 (LWP 18112):
+bt
#0  0x0000003fdda00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a68f83 in os_aio_linux_collect (seg_size=256, segment=1, array=0x21c1080) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5089
#2  os_aio_linux_handle (global_seg=3, message1=0x7fcc01906d98, message2=0x7fcc01906d90, type=0x7fcc01906d88, space_id=0x7fcc01906d80) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5234
#3  0x0000000000bbdc67 in fil_aio_wait (segment=3) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/fil/fil0fil.cc:5575
#4  0x0000000000b055e8 in io_handler_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/srv/srv0start.cc:479
#5  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#6  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 12 (LWP 18130):
+bt
#0  0x000000340c4df253 in poll () from /lib64/libc.so.6
#1  0x0000000000c9e846 in vio_io_wait (vio=<optimized out>, event=VIO_IO_EVENT_READ, timeout=28800000) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/vio/viosocket.c:820
#2  0x0000000000c9ece3 in vio_socket_io_wait (vio=<optimized out>, event=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/vio/viosocket.c:68
#3  0x0000000000c9f680 in vio_read (vio=0x2722050, buf=0x2722240 "\a", size=4) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/vio/viosocket.c:123
#4  0x000000000067b583 in net_read_raw_loop (net=0x2644f30, count=4) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/net_serv.cc:663
#5  0x000000000067c0e1 in net_read_packet_header (net=0x2644f30) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/net_serv.cc:745
#6  net_read_packet (net=<optimized out>, complen=0x7fcc14058c68) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/net_serv.cc:810
#7  0x000000000067c3ec in my_net_read (net=0x2644f30) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/net_serv.cc:888
#8  0x00000000007299d7 in do_command (thd=0x2644cd0) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_parse.cc:983
#9  0x00000000006ed63f in do_handle_one_connection (thd_arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_connect.cc:1615
#10 0x00000000006ed727 in handle_one_connection (arg=0x2644cd0) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_connect.cc:1526
#11 0x00000000009dd6c9 in pfs_spawn_thread (arg=0x270d760) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/perfschema/pfs.cc:1855
#12 0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#13 0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 11 (LWP 18116):
+bt
#0  0x0000003fdda00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a68f83 in os_aio_linux_collect (seg_size=256, segment=1, array=0x21ffcb0) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5089
#2  os_aio_linux_handle (global_seg=7, message1=0x7fcbff102d98, message2=0x7fcbff102d90, type=0x7fcbff102d88, space_id=0x7fcbff102d80) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5234
#3  0x0000000000bbdc67 in fil_aio_wait (segment=7) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/fil/fil0fil.cc:5575
#4  0x0000000000b055e8 in io_handler_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/srv/srv0start.cc:479
#5  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#6  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 10 (LWP 18120):
+bt
#0  0x000000340cc0b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a6eacb in os_cond_wait_timed (abstime=0x7fcbfcc53d00, fast_mutex=0x25830c0, cond=0x2583100) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0sync.cc:177
#2  os_event_wait_time_low (event=0x25830c0, time_in_usec=<optimized out>, reset_sig_count=1) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0sync.cc:723
#3  0x0000000000a4c871 in lock_wait_timeout_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/lock/lock0wait.cc:503
#4  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#5  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 9 (LWP 18114):
+bt
#0  0x0000003fdda00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a68f83 in os_aio_linux_collect (seg_size=256, segment=3, array=0x21c1080) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5089
#2  os_aio_linux_handle (global_seg=5, message1=0x7fcc00504d98, message2=0x7fcc00504d90, type=0x7fcc00504d88, space_id=0x7fcc00504d80) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5234
#3  0x0000000000bbdc67 in fil_aio_wait (segment=5) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/fil/fil0fil.cc:5575
#4  0x0000000000b055e8 in io_handler_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/srv/srv0start.cc:479
#5  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#6  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 8 (LWP 18121):
+bt
#0  0x000000340cc0b7bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000a6eacb in os_cond_wait_timed (abstime=0x7fcbfc252cc0, fast_mutex=0x21be850, cond=0x21be890) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0sync.cc:177
#2  os_event_wait_time_low (event=0x21be850, time_in_usec=<optimized out>, reset_sig_count=1) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0sync.cc:723
#3  0x0000000000b01ec1 in srv_error_monitor_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/srv/srv0srv.cc:2084
#4  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#5  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 7 (LWP 18115):
+bt
#0  0x0000003fdda00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a68f83 in os_aio_linux_collect (seg_size=256, segment=0, array=0x21ffcb0) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5089
#2  os_aio_linux_handle (global_seg=6, message1=0x7fcbffb03d98, message2=0x7fcbffb03d90, type=0x7fcbffb03d88, space_id=0x7fcbffb03d80) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5234
#3  0x0000000000bbdc67 in fil_aio_wait (segment=6) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/fil/fil0fil.cc:5575
#4  0x0000000000b055e8 in io_handler_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/srv/srv0start.cc:479
#5  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#6  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 6 (LWP 18111):
+bt
#0  0x0000003fdda00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a68f83 in os_aio_linux_collect (seg_size=256, segment=0, array=0x21c1080) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5089
#2  os_aio_linux_handle (global_seg=2, message1=0x7fcc02307d98, message2=0x7fcc02307d90, type=0x7fcc02307d88, space_id=0x7fcc02307d80) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5234
#3  0x0000000000bbdc67 in fil_aio_wait (segment=2) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/fil/fil0fil.cc:5575
#4  0x0000000000b055e8 in io_handler_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/srv/srv0start.cc:479
#5  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#6  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 5 (LWP 18113):
+bt
#0  0x0000003fdda00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a68f83 in os_aio_linux_collect (seg_size=256, segment=2, array=0x21c1080) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5089
#2  os_aio_linux_handle (global_seg=4, message1=0x7fcc00f05d98, message2=0x7fcc00f05d90, type=0x7fcc00f05d88, space_id=0x7fcc00f05d80) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5234
#3  0x0000000000bbdc67 in fil_aio_wait (segment=4) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/fil/fil0fil.cc:5575
#4  0x0000000000b055e8 in io_handler_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/srv/srv0start.cc:479
#5  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#6  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 4 (LWP 18109):
+bt
#0  0x0000003fdda00614 in ?? () from /lib64/libaio.so.1
#1  0x0000000000a68f83 in os_aio_linux_collect (seg_size=256, segment=0, array=0x21f2210) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5089
#2  os_aio_linux_handle (global_seg=0, message1=0x7fcc154c8d98, message2=0x7fcc154c8d90, type=0x7fcc154c8d88, space_id=0x7fcc154c8d80) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/os/os0file.cc:5234
#3  0x0000000000bbdc67 in fil_aio_wait (segment=0) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/fil/fil0fil.cc:5575
#4  0x0000000000b055e8 in io_handler_thread (arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/srv/srv0start.cc:479
#5  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#6  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 3 (LWP 18140):
+bt
#0  0x000000340cc0b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000005a32ef in inline_mysql_cond_wait (src_line=2653, mutex=0x14e0440 <LOCK_thread_count>, that=0x14e23c0 <COND_thread_cache>, src_file=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/include/mysql/psi/mysql_thread.h:1162
#2  block_until_new_connection () at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/mysqld.cc:2653
#3  one_thread_per_connection_end (thd=<optimized out>, block_pthread=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/mysqld.cc:2747
#4  0x00000000006ed5be in do_handle_one_connection (thd_arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_connect.cc:1629
#5  0x00000000006ed727 in handle_one_connection (arg=0x2194820) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_connect.cc:1526
#6  0x00000000009dd6c9 in pfs_spawn_thread (arg=0x27011f0) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/perfschema/pfs.cc:1855
#7  0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#8  0x000000340c4e890d in clone () from /lib64/libc.so.6

Thread 2 (LWP 18107):
+bt
#0  0x000000340c4df253 in poll () from /lib64/libc.so.6
#1  0x00000000005a37ca in handle_connections_sockets () at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/mysqld.cc:6243
#2  0x00000000005aac1b in mysqld_main (argc=48, argv=0x20c4148) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/mysqld.cc:5658
#3  0x000000340c41ecdd in __libc_start_main () from /lib64/libc.so.6
#4  0x000000000059b851 in _start ()

Thread 1 (LWP 18135):
+bt
#0  0x000000340cc0c69c in pthread_kill () from /lib64/libpthread.so.0
#1  0x0000000000686bde in handle_fatal_signal (sig=6) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/signal_handler.cc:251
#2  <signal handler called>
#3  0x000000340c4328a5 in raise () from /lib64/libc.so.6
#4  0x000000340c434085 in abort () from /lib64/libc.so.6
#5  0x000000340c42ba1e in __assert_fail_base () from /lib64/libc.so.6
#6  0x000000340c42bae0 in __assert_fail () from /lib64/libc.so.6
#7  0x00000000005bc064 in handler::update_auto_increment (this=0x7fcbec084620) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/handler.cc:3174
#8  0x0000000000a06099 in ha_innobase::write_row (this=0x7fcbec084620, record=0x7fcbec08b000 <incomplete sequence \325>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/innobase/handler/ha_innodb.cc:6888
#9  0x00000000005b9f44 in handler::ha_write_row (this=0x7fcbec084620, buf=0x7fcbec08b000 <incomplete sequence \325>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/handler.cc:7419
#10 0x00000000007040c0 in write_record (thd=0x27263a0, table=0x7fcbec0cd5e0, info=0x7fcbec0a6ab8, update=0x7fcbec0a6b30) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_insert.cc:1889
#11 0x0000000000704bf5 in select_insert::send_data (this=0x7fcbec0a6a70, values=...) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_insert.cc:3674
#12 0x00000000006f5fb8 in end_send (join=0x7fcbec0a6bb0, join_tab=0x7fcbec08f880, end_of_records=false) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_executor.cc:2774
#13 0x00000000006f75da in evaluate_join_record (join=0x7fcbec0a6bb0, join_tab=0x7fcbec08f580) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_executor.cc:1597
#14 0x00000000006fbcd6 in sub_select (join=0x7fcbec0a6bb0, join_tab=0x7fcbec08f580, end_of_records=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_executor.cc:1272
#15 0x00000000006fd38b in do_select (join=0x7fcbec0a6bb0) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_executor.cc:930
#16 JOIN::exec (this=0x7fcbec0a6bb0) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_executor.cc:191
#17 0x00000000007492d0 in mysql_execute_select (free_join=true, select_lex=0x2728e78, thd=0x27263a0) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_select.cc:1101
#18 mysql_select (thd=0x27263a0, tables=0x7fcbec0055c8, wild_num=1, fields=..., conds=0x7fcbec0a6960, order=<optimized out>, group=0x2728f78, having=0x0, select_options=3489925888, result=0x7fcbec0a6a70, unit=0x2728830, select_lex=0x2728e78) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_select.cc:1222
#19 0x0000000000749dbb in handle_select (thd=0x27263a0, result=0x7fcbec0a6a70, setup_tables_done_option=1073741824) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_select.cc:111
#20 0x0000000000726748 in mysql_execute_command (thd=0xffffffffffffdc58) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_parse.cc:3727
#21 0x0000000000727818 in mysql_parse (thd=0x27263a0, rawbuf=0x2728768 "\360R7\001", length=<optimized out>, parser_state=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_parse.cc:6477
#22 0x000000000072871f in dispatch_command (command=COM_QUERY, thd=0x27263a0, packet=0x272e911 "INSERT IGNORE INTO `O` SELECT * FROM `G` WHERE EXISTS (SELECT * FROM `N` WHERE ( `col_varchar_255_key` = NULL OR `col_varchar_10_key` = 'can' ) AND `col_varchar_255` < NULL AND (`col_varchar_255_key` < REPEAT(27, 'mean'))) OR 779878400 > RAND(2470969344)", packet_length=254) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_parse.cc:1374
#23 0x0000000000729a47 in do_command (thd=0x27263a0) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_parse.cc:1049
#24 0x00000000006ed63f in do_handle_one_connection (thd_arg=<optimized out>) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_connect.cc:1615
#25 0x00000000006ed727 in handle_one_connection (arg=0x27263a0) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/sql/sql_connect.cc:1526
#26 0x00000000009dd6c9 in pfs_spawn_thread (arg=0x266a330) at /bzr/5.6_dbg/Percona-Server-5.6.12-rc60.4/storage/perfschema/pfs.cc:1855
#27 0x000000340cc07851 in start_thread () from /lib64/libpthread.so.0
#28 0x000000340c4e890d in clone () from /lib64/libc.so.6
(gdb) +set logging off