[New LWP 12008]
[New LWP 11882]
[New LWP 11876]
[New LWP 11880]
[New LWP 11883]
[New LWP 11879]
[New LWP 11884]
[New LWP 11878]
[New LWP 11899]
[New LWP 11877]
[New LWP 11896]
[New LWP 11885]
[New LWP 11881]
[New LWP 11895]
[New LWP 11898]
[New LWP 11891]
[New LWP 11887]
[New LWP 11897]
[New LWP 11886]
[New LWP 11894]
[New LWP 11893]
[New LWP 11888]
[New LWP 11889]
[New LWP 11890]
[New LWP 12009]
[New LWP 11865]
[Thread debugging using libthread_db enabled]
Core was generated by `maria-5.5-galera/sql/mysqld --no-defaults --datadir=m'.
Program terminated with signal 6, Aborted.
#0  __pthread_kill (threadid=<optimized out>, signo=6) at ../nptl/sysdeps/unix/sysv/linux/pthread_kill.c:63
	in ../nptl/sysdeps/unix/sysv/linux/pthread_kill.c

Thread 26 (Thread 0x7f1b0c6ee740 (LWP 11865)):
#0  0x00007f1b0b017473 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x000000000055bb9e in handle_connections_sockets () at maria-5.5-galera/sql/mysqld.cc:6172
#2  0x000000000055afb3 in mysqld_main (argc=22, argv=0x3caccf0) at maria-5.5-galera/sql/mysqld.cc:5611
#3  0x00000000005520b4 in main (argc=22, argv=0x7ffff1985598) at maria-5.5-galera/sql/main.cc:25

Thread 25 (Thread 0x7f1afc2a1700 (LWP 12009)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
#1  0x00007f1b0afc062f in _L_lock_10501 () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007f1b0afbe9c1 in __GI___libc_free (mem=0x7f1b0b2dc1c0) at malloc.c:3736
#3  0x0000000000ca8bbe in free_memory (ptr=0x3e19e00) at maria-5.5-galera/mysys/safemalloc.c:205
#4  0x0000000000ca8ae2 in sf_free (ptr=0x3e19e00) at maria-5.5-galera/mysys/safemalloc.c:182
#5  0x0000000000c94eb0 in my_free (ptr=0x3e19e00) at maria-5.5-galera/mysys/my_malloc.c:115
#6  0x0000000000c88eb1 in free_root (root=0x7f1af95d61b8, MyFlags=0) at maria-5.5-galera/mysys/my_alloc.c:372
#7  0x00000000005dea19 in Warning_info::clear_warning_info (this=0x7f1af95d61b8, warn_id_arg=81) at maria-5.5-galera/sql/sql_error.cc:487
#8  0x00000000005d3009 in Warning_info::opt_clear_warning_info (this=0x7f1af95d61b8, query_id=81) at maria-5.5-galera/sql/sql_error.h:386
#9  0x00000000006017f5 in mysql_execute_command (thd=0x7f1af95d29b0) at maria-5.5-galera/sql/sql_parse.cc:2292
#10 0x000000000060c9cc in mysql_parse (thd=0x7f1af95d29b0, rawbuf=0x3de3a08 "INSERT INTO t1 ( f1 ) VALUES ( 1 )", length=34, parser_state=0x7f1afc2a0550) at maria-5.5-galera/sql/sql_parse.cc:6235
#11 0x00000000005fea28 in dispatch_command (command=COM_QUERY, thd=0x7f1af95d29b0, packet=0x3e10860 "INSERT INTO t1 ( f1 ) VALUES ( 1 ) ", packet_length=35) at maria-5.5-galera/sql/sql_parse.cc:1240
#12 0x00000000005fd8ff in do_command (thd=0x7f1af95d29b0) at maria-5.5-galera/sql/sql_parse.cc:905
#13 0x00000000006fd7df in do_handle_one_connection (thd_arg=0x7f1af95d29b0) at maria-5.5-galera/sql/sql_connect.cc:1278
#14 0x00000000006fd1c6 in handle_one_connection (arg=0x7f1af95d29b0) at maria-5.5-galera/sql/sql_connect.cc:1186
#15 0x00007f1b0b873efc in start_thread (arg=0x7f1afc2a1700) at pthread_create.c:304
#16 0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#17 0x0000000000000000 in ?? ()

Thread 24 (Thread 0x7f1adcdd8700 (LWP 11890)):
#0  0x00007f1b0c2e6864 in ?? () from /lib/libaio.so.1
#1  0x0000000000b82ce3 in os_aio_linux_collect (array=0x7f1af8c9f320, segment=2, seg_size=2048) at maria-5.5-galera/storage/xtradb/os/os0file.c:4596
#2  0x0000000000b8307d in os_aio_linux_handle (global_seg=8, message1=0x7f1adcdd7e48, message2=0x7f1adcdd7e50, type=0x7f1adcdd7e58, space_id=0x7f1adcdd7e60) at maria-5.5-galera/storage/xtradb/os/os0file.c:4741
#3  0x0000000000b2b31f in fil_aio_wait (segment=8) at maria-5.5-galera/storage/xtradb/fil/fil0fil.c:5530
#4  0x0000000000a6c65c in io_handler_thread (arg=0x1d01240) at maria-5.5-galera/storage/xtradb/srv/srv0start.c:483
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1adcdd8700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 23 (Thread 0x7f1add5d9700 (LWP 11889)):
#0  0x00007f1b0c2e6864 in ?? () from /lib/libaio.so.1
#1  0x0000000000b82ce3 in os_aio_linux_collect (array=0x7f1af8c9f320, segment=1, seg_size=2048) at maria-5.5-galera/storage/xtradb/os/os0file.c:4596
#2  0x0000000000b8307d in os_aio_linux_handle (global_seg=7, message1=0x7f1add5d8e48, message2=0x7f1add5d8e50, type=0x7f1add5d8e58, space_id=0x7f1add5d8e60) at maria-5.5-galera/storage/xtradb/os/os0file.c:4741
#3  0x0000000000b2b31f in fil_aio_wait (segment=7) at maria-5.5-galera/storage/xtradb/fil/fil0fil.c:5530
#4  0x0000000000a6c65c in io_handler_thread (arg=0x1d01238) at maria-5.5-galera/storage/xtradb/srv/srv0start.c:483
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1add5d9700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 22 (Thread 0x7f1adddda700 (LWP 11888)):
#0  0x00007f1b0c2e6864 in ?? () from /lib/libaio.so.1
#1  0x0000000000b82ce3 in os_aio_linux_collect (array=0x7f1af8c9f320, segment=0, seg_size=2048) at maria-5.5-galera/storage/xtradb/os/os0file.c:4596
#2  0x0000000000b8307d in os_aio_linux_handle (global_seg=6, message1=0x7f1adddd9e48, message2=0x7f1adddd9e50, type=0x7f1adddd9e58, space_id=0x7f1adddd9e60) at maria-5.5-galera/storage/xtradb/os/os0file.c:4741
#3  0x0000000000b2b31f in fil_aio_wait (segment=6) at maria-5.5-galera/storage/xtradb/fil/fil0fil.c:5530
#4  0x0000000000a6c65c in io_handler_thread (arg=0x1d01230) at maria-5.5-galera/storage/xtradb/srv/srv0start.c:483
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1adddda700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 21 (Thread 0x7f1afcaa2700 (LWP 11893)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
#1  0x0000000000ca2e0c in safe_cond_timedwait (cond=0x7f1af86f62d0, mp=0x7f1af86f6220, abstime=0x7f1afcaa1df0, file=0xecf260 "maria-5.5-galera/storage/xtradb/os/os0sync.c", line=171) at maria-5.5-galera/mysys/thr_mutex.c:547
#2  0x0000000000b84cb5 in os_cond_wait_timed (cond=0x7f1af86f62d0, mutex=0x7f1af86f6220, abstime=0x7f1afcaa1df0) at maria-5.5-galera/storage/xtradb/os/os0sync.c:171
#3  0x0000000000b85736 in os_event_wait_time_low (event=0x7f1af86f6220, time_in_usec=1000000, reset_sig_count=1) at maria-5.5-galera/storage/xtradb/os/os0sync.c:716
#4  0x0000000000a688de in srv_lock_timeout_thread (arg=0x0) at maria-5.5-galera/storage/xtradb/srv/srv0srv.c:2768
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1afcaa2700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 20 (Thread 0x7f1adb9b3700 (LWP 11894)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
#1  0x0000000000ca2e0c in safe_cond_timedwait (cond=0x7f1af86f61d0, mp=0x7f1af86f6120, abstime=0x7f1adb9b2dc0, file=0xecf260 "maria-5.5-galera/storage/xtradb/os/os0sync.c", line=171) at maria-5.5-galera/mysys/thr_mutex.c:547
#2  0x0000000000b84cb5 in os_cond_wait_timed (cond=0x7f1af86f61d0, mutex=0x7f1af86f6120, abstime=0x7f1adb9b2dc0) at maria-5.5-galera/storage/xtradb/os/os0sync.c:171
#3  0x0000000000b85736 in os_event_wait_time_low (event=0x7f1af86f6120, time_in_usec=1000000, reset_sig_count=1) at maria-5.5-galera/storage/xtradb/os/os0sync.c:716
#4  0x0000000000a68e62 in srv_error_monitor_thread (arg=0x0) at maria-5.5-galera/storage/xtradb/srv/srv0srv.c:3000
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1adb9b3700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 19 (Thread 0x7f1adeddc700 (LWP 11886)):
#0  0x00007f1b0c2e6864 in ?? () from /lib/libaio.so.1
#1  0x0000000000b82ce3 in os_aio_linux_collect (array=0x7f1af8addc90, segment=2, seg_size=2048) at maria-5.5-galera/storage/xtradb/os/os0file.c:4596
#2  0x0000000000b8307d in os_aio_linux_handle (global_seg=4, message1=0x7f1adeddbe48, message2=0x7f1adeddbe50, type=0x7f1adeddbe58, space_id=0x7f1adeddbe60) at maria-5.5-galera/storage/xtradb/os/os0file.c:4741
#3  0x0000000000b2b31f in fil_aio_wait (segment=4) at maria-5.5-galera/storage/xtradb/fil/fil0fil.c:5530
#4  0x0000000000a6c65c in io_handler_thread (arg=0x1d01220) at maria-5.5-galera/storage/xtradb/srv/srv0start.c:483
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1adeddc700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 18 (Thread 0x7f1ada1b0700 (LWP 11897)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
#1  0x0000000000ca2e0c in safe_cond_timedwait (cond=0x7f1af86f65d0, mp=0x7f1af86f6520, abstime=0x7f1ada1af690, file=0xecf260 "maria-5.5-galera/storage/xtradb/os/os0sync.c", line=171) at maria-5.5-galera/mysys/thr_mutex.c:547
#2  0x0000000000b84cb5 in os_cond_wait_timed (cond=0x7f1af86f65d0, mutex=0x7f1af86f6520, abstime=0x7f1ada1af690) at maria-5.5-galera/storage/xtradb/os/os0sync.c:171
#3  0x0000000000b85736 in os_event_wait_time_low (event=0x7f1af86f6520, time_in_usec=1000000, reset_sig_count=1) at maria-5.5-galera/storage/xtradb/os/os0sync.c:716
#4  0x0000000000a696f9 in srv_master_thread (arg=0x0) at maria-5.5-galera/storage/xtradb/srv/srv0srv.c:3414
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1ada1b0700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 17 (Thread 0x7f1ade5db700 (LWP 11887)):
#0  0x00007f1b0c2e6864 in ?? () from /lib/libaio.so.1
#1  0x0000000000b82ce3 in os_aio_linux_collect (array=0x7f1af8addc90, segment=3, seg_size=2048) at maria-5.5-galera/storage/xtradb/os/os0file.c:4596
#2  0x0000000000b8307d in os_aio_linux_handle (global_seg=5, message1=0x7f1ade5dae48, message2=0x7f1ade5dae50, type=0x7f1ade5dae58, space_id=0x7f1ade5dae60) at maria-5.5-galera/storage/xtradb/os/os0file.c:4741
#3  0x0000000000b2b31f in fil_aio_wait (segment=5) at maria-5.5-galera/storage/xtradb/fil/fil0fil.c:5530
#4  0x0000000000a6c65c in io_handler_thread (arg=0x1d01228) at maria-5.5-galera/storage/xtradb/srv/srv0start.c:483
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1ade5db700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 16 (Thread 0x7f1adc5d7700 (LWP 11891)):
#0  0x00007f1b0c2e6864 in ?? () from /lib/libaio.so.1
#1  0x0000000000b82ce3 in os_aio_linux_collect (array=0x7f1af8c9f320, segment=3, seg_size=2048) at maria-5.5-galera/storage/xtradb/os/os0file.c:4596
#2  0x0000000000b8307d in os_aio_linux_handle (global_seg=9, message1=0x7f1adc5d6e48, message2=0x7f1adc5d6e50, type=0x7f1adc5d6e58, space_id=0x7f1adc5d6e60) at maria-5.5-galera/storage/xtradb/os/os0file.c:4741
#3  0x0000000000b2b31f in fil_aio_wait (segment=9) at maria-5.5-galera/storage/xtradb/fil/fil0fil.c:5530
#4  0x0000000000a6c65c in io_handler_thread (arg=0x1d01248) at maria-5.5-galera/storage/xtradb/srv/srv0start.c:483
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1adc5d7700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 15 (Thread 0x7f1ad99af700 (LWP 11898)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x0000000000ca2b0a in safe_cond_wait (cond=0x7f1af81c6050, mp=0x7f1af81c5fa0, file=0xecf260 "maria-5.5-galera/storage/xtradb/os/os0sync.c", line=207) at maria-5.5-galera/mysys/thr_mutex.c:493
#2  0x0000000000b84d9f in os_cond_wait (cond=0x7f1af81c6050, mutex=0x7f1af81c5fa0) at maria-5.5-galera/storage/xtradb/os/os0sync.c:207
#3  0x0000000000b85578 in os_event_wait_low (event=0x7f1af81c5fa0, reset_sig_count=3) at maria-5.5-galera/storage/xtradb/os/os0sync.c:609
#4  0x0000000000a6af55 in srv_purge_thread (arg=0x0) at maria-5.5-galera/storage/xtradb/srv/srv0srv.c:4063
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1ad99af700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 14 (Thread 0x7f1adb1b2700 (LWP 11895)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
#1  0x0000000000ca2e0c in safe_cond_timedwait (cond=0x7f1af86f63d0, mp=0x7f1af86f6320, abstime=0x7f1adb1b1df0, file=0xecf260 "maria-5.5-galera/storage/xtradb/os/os0sync.c", line=171) at maria-5.5-galera/mysys/thr_mutex.c:547
#2  0x0000000000b84cb5 in os_cond_wait_timed (cond=0x7f1af86f63d0, mutex=0x7f1af86f6320, abstime=0x7f1adb1b1df0) at maria-5.5-galera/storage/xtradb/os/os0sync.c:171
#3  0x0000000000b85736 in os_event_wait_time_low (event=0x7f1af86f6320, time_in_usec=5000000, reset_sig_count=1) at maria-5.5-galera/storage/xtradb/os/os0sync.c:716
#4  0x0000000000a68496 in srv_monitor_thread (arg=0x0) at maria-5.5-galera/storage/xtradb/srv/srv0srv.c:2597
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1adb1b2700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 13 (Thread 0x7f1afd352700 (LWP 11881)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
#1  0x0000000000ca2e0c in safe_cond_timedwait (cond=0x1cff920, mp=0x1cff860, abstime=0x7f1afd351e00, file=0xe6df20 "maria-5.5-galera/include/mysql/psi/mysql_thread.h", line=1012) at maria-5.5-galera/mysys/thr_mutex.c:547
#2  0x0000000000983df2 in inline_mysql_cond_timedwait (that=0x1cff920, mutex=0x1cff860, abstime=0x7f1afd351e00, src_file=0xe6df60 "maria-5.5-galera/storage/maria/ma_servicethread.c", src_line=119) at maria-5.5-galera/include/mysql/psi/mysql_thread.h:1012
#3  0x00000000009842aa in my_service_thread_sleep (control=0x13881c0, sleep_time=30000000000) at maria-5.5-galera/storage/maria/ma_servicethread.c:118
#4  0x0000000000978911 in ma_checkpoint_background (arg=0x1e) at maria-5.5-galera/storage/maria/ma_checkpoint.c:705
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1afd352700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 12 (Thread 0x7f1adf5dd700 (LWP 11885)):
#0  0x00007f1b0c2e6864 in ?? () from /lib/libaio.so.1
#1  0x0000000000b82ce3 in os_aio_linux_collect (array=0x7f1af8addc90, segment=1, seg_size=2048) at maria-5.5-galera/storage/xtradb/os/os0file.c:4596
#2  0x0000000000b8307d in os_aio_linux_handle (global_seg=3, message1=0x7f1adf5dce48, message2=0x7f1adf5dce50, type=0x7f1adf5dce58, space_id=0x7f1adf5dce60) at maria-5.5-galera/storage/xtradb/os/os0file.c:4741
#3  0x0000000000b2b31f in fil_aio_wait (segment=3) at maria-5.5-galera/storage/xtradb/fil/fil0fil.c:5530
#4  0x0000000000a6c65c in io_handler_thread (arg=0x1d01218) at maria-5.5-galera/storage/xtradb/srv/srv0start.c:483
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1adf5dd700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7f1ada9b1700 (LWP 11896)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
#1  0x0000000000ca2e0c in safe_cond_timedwait (cond=0x7f1af86f65d0, mp=0x7f1af86f6520, abstime=0x7f1ada9b0e20, file=0xecf260 "maria-5.5-galera/storage/xtradb/os/os0sync.c", line=171) at maria-5.5-galera/mysys/thr_mutex.c:547
#2  0x0000000000b84cb5 in os_cond_wait_timed (cond=0x7f1af86f65d0, mutex=0x7f1af86f6520, abstime=0x7f1ada9b0e20) at maria-5.5-galera/storage/xtradb/os/os0sync.c:171
#3  0x0000000000b85736 in os_event_wait_time_low (event=0x7f1af86f6520, time_in_usec=5000000, reset_sig_count=1) at maria-5.5-galera/storage/xtradb/os/os0sync.c:716
#4  0x0000000000a68ed6 in srv_LRU_dump_restore_thread (arg=0x0) at maria-5.5-galera/storage/xtradb/srv/srv0srv.c:3046
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1ada9b1700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7f1b002f5700 (LWP 11877)):
#0  0x00007f1b0b023bf3 in epoll_wait () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f1b0a255c34 in asio::detail::epoll_reactor::run (this=0x3d5dec0, block=<optimized out>, ops=...) at asio/asio/detail/impl/epoll_reactor.ipp:239
#2  0x00007f1b0a259c81 in asio::detail::task_io_service::do_one (this=0x3d5dcf0, lock=..., this_idle_thread=0x7f1b002f4350) at asio/asio/detail/impl/task_io_service.ipp:263
#3  0x00007f1b0a256662 in asio::detail::task_io_service::run (this=0x3d5dcf0, ec=<optimized out>) at asio/asio/detail/impl/task_io_service.ipp:129
#4  0x00007f1b0a258522 in run (this=<optimized out>) at asio/asio/impl/io_service.ipp:56
#5  gcomm::AsioProtonet::event_loop (this=0x3d5d560, period=<optimized out>) at gcomm/src/asio_protonet.cpp:245
#6  0x00007f1b0a271029 in GCommConn::run (this=0x3d5cb50) at gcs/src/gcs_gcomm.cpp:455
#7  0x00007f1b0a276f69 in GCommConn::run_fn (arg=<optimized out>) at gcs/src/gcs_gcomm.cpp:204
#8  0x00007f1b0b873efc in start_thread (arg=0x7f1b002f5700) at pthread_create.c:304
#9  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f1b0c5ca700 (LWP 11899)):
#0  do_sigwait (set=<optimized out>, sig=0x7f1b0c5c9e98) at ../nptl/sysdeps/unix/sysv/linux/../../../../../sysdeps/unix/sysv/linux/sigwait.c:65
#1  0x00007f1b0b87be29 in __sigwait (set=<optimized out>, sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/../../../../../sysdeps/unix/sysv/linux/sigwait.c:100
#2  0x0000000000556a87 in signal_hand (arg=0x0) at maria-5.5-galera/sql/mysqld.cc:3138
#3  0x00007f1b0b873efc in start_thread (arg=0x7f1b0c5ca700) at pthread_create.c:304
#4  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f1affaf4700 (LWP 11878)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f1b0a26f8bb in wait (cond=..., this=<optimized out>) at galerautils/src/gu_lock.hpp:56
#2  front (timeout=<optimized out>, this=0x3d5ccd0) at gcs/src/gcs_gcomm.cpp:105
#3  gcomm_recv (backend=<optimized out>, msg=0x3d1ee90, timeout=<optimized out>) at gcs/src/gcs_gcomm.cpp:590
#4  0x00007f1b0a26591f in core_msg_recv (timeout=9223372035999999999, recv_msg=0x3d1ee90, backend=0x3d1efb8) at gcs/src/gcs_core.c:413
#5  gcs_core_recv (conn=0x3d1ee30, recv_act=<optimized out>, timeout=9223372035999999999) at gcs/src/gcs_core.c:993
#6  0x00007f1b0a26ada9 in gcs_recv_thread (arg=0x3d1dca0) at gcs/src/gcs.c:1114
#7  0x00007f1b0b873efc in start_thread (arg=0x7f1affaf4700) at pthread_create.c:304
#8  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f1adfdde700 (LWP 11884)):
#0  0x00007f1b0c2e6864 in ?? () from /lib/libaio.so.1
#1  0x0000000000b82ce3 in os_aio_linux_collect (array=0x7f1af8addc90, segment=0, seg_size=2048) at maria-5.5-galera/storage/xtradb/os/os0file.c:4596
#2  0x0000000000b8307d in os_aio_linux_handle (global_seg=2, message1=0x7f1adfddde48, message2=0x7f1adfddde50, type=0x7f1adfddde58, space_id=0x7f1adfddde60) at maria-5.5-galera/storage/xtradb/os/os0file.c:4741
#3  0x0000000000b2b31f in fil_aio_wait (segment=2) at maria-5.5-galera/storage/xtradb/fil/fil0fil.c:5530
#4  0x0000000000a6c65c in io_handler_thread (arg=0x1d01210) at maria-5.5-galera/storage/xtradb/srv/srv0start.c:483
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1adfdde700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f1aff2f2700 (LWP 11879)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x0000000000ca2b0a in safe_cond_wait (cond=0x14c9ba0, mp=0x14c9ae0, file=0xd10b00 "maria-5.5-galera/include/mysql/psi/mysql_thread.h", line=983) at maria-5.5-galera/mysys/thr_mutex.c:493
#2  0x00000000005fbad1 in inline_mysql_cond_wait (that=0x14c9ba0, mutex=0x14c9ae0, src_file=0xd113e0 "maria-5.5-galera/sql/sql_parse.cc", src_line=8351) at maria-5.5-galera/include/mysql/psi/mysql_thread.h:983
#3  0x0000000000611cc3 in wsrep_rollback_process (thd=0x3d37010) at maria-5.5-galera/sql/sql_parse.cc:8351
#4  0x0000000000559491 in start_wsrep_THD (arg=0x611bf1) at maria-5.5-galera/sql/mysqld.cc:4777
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1aff2f2700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f1ae05df700 (LWP 11883)):
#0  0x00007f1b0c2e6864 in ?? () from /lib/libaio.so.1
#1  0x0000000000b82ce3 in os_aio_linux_collect (array=0x7f1af8a6c610, segment=0, seg_size=2048) at maria-5.5-galera/storage/xtradb/os/os0file.c:4596
#2  0x0000000000b8307d in os_aio_linux_handle (global_seg=1, message1=0x7f1ae05dee48, message2=0x7f1ae05dee50, type=0x7f1ae05dee58, space_id=0x7f1ae05dee60) at maria-5.5-galera/storage/xtradb/os/os0file.c:4741
#3  0x0000000000b2b31f in fil_aio_wait (segment=1) at maria-5.5-galera/storage/xtradb/fil/fil0fil.c:5530
#4  0x0000000000a6c65c in io_handler_thread (arg=0x1d01208) at maria-5.5-galera/storage/xtradb/srv/srv0start.c:483
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1ae05df700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f1aff2a9700 (LWP 11880)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f1b0a16f3de in fifo_lock_get (q=0x3d45340) at galerautils/src/gu_fifo.c:219
#2  gu_fifo_get_head (q=0x3d45340, err=0x7f1aff2a84f0) at galerautils/src/gu_fifo.c:278
#3  0x00007f1b0a26a284 in gcs_recv (conn=0x3d1dca0, action=0x7f1aff2a8530) at gcs/src/gcs.c:1666
#4  0x00007f1b0a29932b in galera::GcsActionSource::process (this=0x3d17b08, recv_ctx=0x3d8a5f0) at galera/src/gcs_action_source.cpp:160
#5  0x00007f1b0a2ba575 in async_recv (recv_ctx=0x3d8a5f0, this=0x3d17580) at galera/src/replicator_smm.cpp:370
#6  galera::ReplicatorSMM::async_recv (this=0x3d17580, recv_ctx=0x3d8a5f0) at galera/src/replicator_smm.cpp:351
#7  0x00007f1b0a2ced8e in galera_recv (gh=<optimized out>, recv_ctx=<optimized out>) at galera/src/wsrep_provider.cpp:199
#8  0x00000000006119c7 in wsrep_replication_process (thd=0x3d8a5f0) at maria-5.5-galera/sql/sql_parse.cc:8288
#9  0x0000000000559491 in start_wsrep_THD (arg=0x611927) at maria-5.5-galera/sql/mysqld.cc:4777
#10 0x00007f1b0b873efc in start_thread (arg=0x7f1aff2a9700) at pthread_create.c:304
#11 0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f1b0ad29700 (LWP 11876)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f1b0a294296 in wait (cond=..., this=<optimized out>) at galerautils/src/gu_lock.hpp:56
#2  galera::ServiceThd::thd_func (arg=0x3d17a80) at galera/src/galera_service_thd.cpp:25
#3  0x00007f1b0b873efc in start_thread (arg=0x7f1b0ad29700) at pthread_create.c:304
#4  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f1ae0de0700 (LWP 11882)):
#0  0x00007f1b0c2e6864 in ?? () from /lib/libaio.so.1
#1  0x0000000000b82ce3 in os_aio_linux_collect (array=0x7f1af89faf90, segment=0, seg_size=2048) at maria-5.5-galera/storage/xtradb/os/os0file.c:4596
#2  0x0000000000b8307d in os_aio_linux_handle (global_seg=0, message1=0x7f1ae0ddfe48, message2=0x7f1ae0ddfe50, type=0x7f1ae0ddfe58, space_id=0x7f1ae0ddfe60) at maria-5.5-galera/storage/xtradb/os/os0file.c:4741
#3  0x0000000000b2b31f in fil_aio_wait (segment=0) at maria-5.5-galera/storage/xtradb/fil/fil0fil.c:5530
#4  0x0000000000a6c65c in io_handler_thread (arg=0x1d01200) at maria-5.5-galera/storage/xtradb/srv/srv0start.c:483
#5  0x00007f1b0b873efc in start_thread (arg=0x7f1ae0de0700) at pthread_create.c:304
#6  0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f1b0c581700 (LWP 12008)):
#0  __pthread_kill (threadid=<optimized out>, signo=6) at ../nptl/sysdeps/unix/sysv/linux/pthread_kill.c:63
#1  0x0000000000c9ae00 in my_write_core (sig=6) at maria-5.5-galera/mysys/stacktrace.c:457
#2  0x00000000007bdd3c in handle_fatal_signal (sig=6) at maria-5.5-galera/sql/signal_handler.cc:262
#3  <signal handler called>
#4  0x00007f1b0af763a5 in __GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#5  0x00007f1b0af79b0b in __GI_abort () at abort.c:92
#6  0x00007f1b0afafd63 in __libc_message (do_abort=2, fmt=0x7f1b0b0a0e58 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:189
#7  0x00007f1b0afba6e6 in malloc_printerr (action=3, str=0x7f1b0b0a1048 "free(): corrupted unsorted chunks", ptr=<optimized out>) at malloc.c:6283
#8  0x00007f1b0afbe9cc in __GI___libc_free (mem=<optimized out>) at malloc.c:3738
#9  0x0000000000ca8bbe in free_memory (ptr=0x3ddcf90) at maria-5.5-galera/mysys/safemalloc.c:205
#10 0x0000000000ca8ae2 in sf_free (ptr=0x3ddcf90) at maria-5.5-galera/mysys/safemalloc.c:182
#11 0x0000000000c94eb0 in my_free (ptr=0x3ddcf90) at maria-5.5-galera/mysys/my_malloc.c:115
#12 0x00000000007082a3 in MDL_context::acquire_locks (this=0x7f1af95781a0, mdl_requests=0x7f1b0c57f7c0, lock_wait_timeout=31536000) at maria-5.5-galera/sql/mdl.cc:2207
#13 0x00000000005a833c in lock_table_names (thd=0x7f1af95780b0, tables_start=0x3dd7a70, tables_end=0x0, lock_wait_timeout=31536000, flags=0) at maria-5.5-galera/sql/sql_base.cc:4751
#14 0x00000000005a8714 in open_tables (thd=0x7f1af95780b0, start=0x7f1b0c57fb20, counter=0x7f1b0c57fb6c, flags=0, prelocking_strategy=0x7f1b0c57fc00) at maria-5.5-galera/sql/sql_base.cc:4936
#15 0x00000000005a97d1 in open_and_lock_tables (thd=0x7f1af95780b0, tables=0x3dd7a70, derived=false, flags=0, prelocking_strategy=0x7f1b0c57fc00) at maria-5.5-galera/sql/sql_base.cc:5599
#16 0x00000000005a929a in open_n_lock_single_table (thd=0x7f1af95780b0, table_l=0x3dd7a70, lock_type=TL_READ_NO_INSERT, flags=0, prelocking_strategy=0x7f1b0c57fc00) at maria-5.5-galera/sql/sql_base.cc:5443
#17 0x00000000006a5099 in open_n_lock_single_table (thd=0x7f1af95780b0, table_l=0x3dd7a70, lock_type=TL_READ_NO_INSERT, flags=0) at maria-5.5-galera/sql/sql_base.h:482
#18 0x00000000006a7c03 in mysql_create_or_drop_trigger (thd=0x7f1af95780b0, tables=0x3dd7a70, create=true) at maria-5.5-galera/sql/sql_trigger.cc:530
#19 0x0000000000608fc4 in mysql_execute_command (thd=0x7f1af95780b0) at maria-5.5-galera/sql/sql_parse.cc:4785
#20 0x000000000060c9cc in mysql_parse (thd=0x7f1af95780b0, rawbuf=0x3dd7898 "CREATE TRIGGER tr AFTER DELETE ON t1 FOR EACH ROW BEGIN END ; DROP TRIGGER IF EXISTS tr ; SELECT '1 alive'", length=106, parser_state=0x7f1b0c580550) at maria-5.5-galera/sql/sql_parse.cc:6235
#21 0x00000000005fea28 in dispatch_command (command=COM_QUERY, thd=0x7f1af95780b0, packet=0x7f1af95cb8b1 "CREATE TRIGGER tr AFTER DELETE ON t1 FOR EACH ROW BEGIN END ; DROP TRIGGER IF EXISTS tr ; SELECT '1 alive'", packet_length=106) at maria-5.5-galera/sql/sql_parse.cc:1240
#22 0x00000000005fd8b3 in do_command (thd=0x7f1af95780b0) at maria-5.5-galera/sql/sql_parse.cc:899
#23 0x00000000006fd7df in do_handle_one_connection (thd_arg=0x7f1af95780b0) at maria-5.5-galera/sql/sql_connect.cc:1278
#24 0x00000000006fd1c6 in handle_one_connection (arg=0x7f1af95780b0) at maria-5.5-galera/sql/sql_connect.cc:1186
#25 0x00007f1b0b873efc in start_thread (arg=0x7f1b0c581700) at pthread_create.c:304
#26 0x00007f1b0b02359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#27 0x0000000000000000 in ?? ()