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[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/home/travis/server/bin/mysqld --no-defaults --basedir=/home/travis/server --lc'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f0ae3f8059f in pthread_kill () from /lib/x86_64-linux-gnu/libpthread.so.0
[Current thread is 1 (Thread 0x7f0a44578700 (LWP 6192))]

Thread 41 (Thread 0x7f0ae0058700 (LWP 6188)):
#0  0x000056335c687fe1 in ha_innobase::general_fetch (this=0x7f0adc29d590, buf=0x7f0adc4cd0c0 "\377", direction=1, match_mode=0) at /home/buildbot/buildbot/build/storage/innobase/handler/ha_innodb.cc:9535
#1  0x000056335c4e77f7 in handler::ha_rnd_next (this=0x7f0adc29d590, buf=0x7f0adc4cd0c0 "\377") at /home/buildbot/buildbot/build/sql/handler.cc:2765
#2  0x000056335c5e43cc in rr_sequential (info=0x7f0adc087a30) at /home/buildbot/buildbot/build/sql/records.cc:481
#3  0x000056335c35bc22 in READ_RECORD::read_record (this=0x7f0adc087a30) at /home/buildbot/buildbot/build/sql/records.h:73
#4  sub_select (join=0x7f0adc085d18, join_tab=0x7f0adc087968, end_of_records=<optimized out>) at /home/buildbot/buildbot/build/sql/sql_select.cc:19415
#5  0x000056335c37aa9c in do_select (procedure=<optimized out>, join=0x7f0adc085d18) at /home/buildbot/buildbot/build/sql/sql_select.cc:18936
#6  JOIN::exec_inner (this=this@entry=0x7f0adc085d18) at /home/buildbot/buildbot/build/sql/sql_select.cc:4040
#7  0x000056335c37acbc in JOIN::exec (this=this@entry=0x7f0adc085d18) at /home/buildbot/buildbot/build/sql/sql_select.cc:3834
#8  0x000056335c379b1a in mysql_select (thd=thd@entry=0x7f0adc069cd8, tables=0x7f0adc0855d0, wild_num=<optimized out>, fields=..., conds=<optimized out>, og_num=<optimized out>, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=551903562496, result=result@entry=0x7f0adc085cf0, unit=unit@entry=0x7f0adc06d9c8, select_lex=select_lex@entry=0x7f0adc06e138) at /home/buildbot/buildbot/build/sql/sql_select.cc:4239
#9  0x000056335c37aecc in handle_select (thd=thd@entry=0x7f0adc069cd8, lex=lex@entry=0x7f0adc06d900, result=result@entry=0x7f0adc085cf0, setup_tables_done_option=setup_tables_done_option@entry=0) at /home/buildbot/buildbot/build/sql/sql_select.cc:385
#10 0x000056335c241fbe in execute_sqlcom_select (thd=thd@entry=0x7f0adc069cd8, all_tables=0x7f0adc0855d0) at /home/buildbot/buildbot/build/sql/sql_parse.cc:6548
#11 0x000056335c326382 in mysql_execute_command (thd=thd@entry=0x7f0adc069cd8) at /home/buildbot/buildbot/build/sql/sql_parse.cc:3769
#12 0x000056335c32d5d9 in mysql_parse (thd=thd@entry=0x7f0adc069cd8, rawbuf=<optimized out>, length=230, parser_state=parser_state@entry=0x7f0ae0057680, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /home/buildbot/buildbot/build/sql/sql_parse.cc:8092
#13 0x000056335c32f75e in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x7f0adc069cd8, packet=0x7f0adc06f619 "\373\001", packet_length=packet_length@entry=231, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /home/buildbot/buildbot/build/sql/sql_parse.cc:1851
#14 0x000056335c32ff1e in do_command (thd=0x7f0adc069cd8) at /home/buildbot/buildbot/build/sql/sql_parse.cc:1396
#15 0x000056335c3f780f in do_handle_one_connection (connect=connect@entry=0x563362242c18) at /home/buildbot/buildbot/build/sql/sql_connect.cc:1402
#16 0x000056335c3f7934 in handle_one_connection (arg=0x563362242c18) at /home/buildbot/buildbot/build/sql/sql_connect.cc:1308
#17 0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#18 0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 40 (Thread 0x7f0a369fe700 (LWP 6174)):
#0  0x00007f0ae3f7f360 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c675b7b in inline_mysql_cond_wait (mutex=0x7f0a369fde70, that=0x7f0a369fdea0, src_file=<optimized out>, src_line=<optimized out>) at /home/buildbot/buildbot/build/include/mysql/psi/mysql_thread.h:1178
#2  thd_destructor_proxy () at /home/buildbot/buildbot/build/storage/innobase/handler/ha_innodb.cc:306
#3  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 39 (Thread 0x7f0a371ff700 (LWP 6173)):
#0  0x00007f0ae3f7f360 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c6f503b in os_event::wait (this=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:161
#2  os_event::wait_low (reset_sig_count=<optimized out>, this=0x56335e8c7520) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:331
#3  os_event_wait_low (event=0x56335e8c7520, reset_sig_count=reset_sig_count@entry=0) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:520
#4  0x000056335c8156ed in buf_resize_thread () at /home/buildbot/buildbot/build/storage/innobase/buf/buf0buf.cc:3147
#5  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 38 (Thread 0x7f0a445c2700 (LWP 6190)):
#0  0x00007f0ae361874d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000056335ca938fd in vio_io_wait (vio=vio@entry=0x5633626079b8, event=<optimized out>, timeout=28800000) at /home/buildbot/buildbot/build/vio/viosocket.c:962
#2  0x000056335ca939f6 in vio_socket_io_wait (vio=0x5633626079b8, event=<optimized out>) at /home/buildbot/buildbot/build/vio/viosocket.c:119
#3  0x000056335ca93c24 in vio_read (vio=0x5633626079b8, buf=0x5633623469f8 "I", size=4) at /home/buildbot/buildbot/build/vio/viosocket.c:196
#4  0x000056335c27ba9a in my_real_read (net=0x563362361bf8, complen=complen@entry=0x7f0a445c1e00, header=1 '\001') at /home/buildbot/buildbot/build/sql/net_serv.cc:962
#5  0x000056335c27c955 in my_net_read_packet_reallen (net=0x563362361bf8, read_from_server=<optimized out>, reallen=reallen@entry=0x7f0a445c1e58) at /home/buildbot/buildbot/build/sql/net_serv.cc:1243
#6  0x000056335c27caad in my_net_read_packet (net=<optimized out>, read_from_server=<optimized out>) at /home/buildbot/buildbot/build/sql/net_serv.cc:1227
#7  0x000056335c32fe7d in do_command (thd=0x563362361998) at /home/buildbot/buildbot/build/sql/sql_parse.cc:1271
#8  0x000056335c3f780f in do_handle_one_connection (connect=connect@entry=0x563362242c18) at /home/buildbot/buildbot/build/sql/sql_connect.cc:1402
#9  0x000056335c3f7934 in handle_one_connection (arg=0x563362242c18) at /home/buildbot/buildbot/build/sql/sql_connect.cc:1308
#10 0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 37 (Thread 0x7f0a37a00700 (LWP 6172)):
#0  0x00007f0ae3f82c1d in nanosleep () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c6f5240 in os_thread_sleep (tm=tm@entry=1000000) at /home/buildbot/buildbot/build/storage/innobase/os/os0thread.cc:225
#2  0x000056335c8069aa in btr_defragment_thread () at /home/buildbot/buildbot/build/storage/innobase/btr/btr0defragment.cc:717
#3  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 36 (Thread 0x7f0ae00ec700 (LWP 6184)):
#0  0x00007f0ae361874d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000056335ca938fd in vio_io_wait (vio=vio@entry=0x563362246968, event=<optimized out>, timeout=28800000) at /home/buildbot/buildbot/build/vio/viosocket.c:962
#2  0x000056335ca939f6 in vio_socket_io_wait (vio=0x563362246968, event=<optimized out>) at /home/buildbot/buildbot/build/vio/viosocket.c:119
#3  0x000056335ca93c24 in vio_read (vio=0x563362246968, buf=0x7f0adc033628 <incomplete sequence \341>, size=4) at /home/buildbot/buildbot/build/vio/viosocket.c:196
#4  0x000056335c27ba9a in my_real_read (net=0x7f0adc02baf8, complen=complen@entry=0x7f0ae00ebe00, header=1 '\001') at /home/buildbot/buildbot/build/sql/net_serv.cc:962
#5  0x000056335c27c955 in my_net_read_packet_reallen (net=0x7f0adc02baf8, read_from_server=<optimized out>, reallen=reallen@entry=0x7f0ae00ebe58) at /home/buildbot/buildbot/build/sql/net_serv.cc:1243
#6  0x000056335c27caad in my_net_read_packet (net=<optimized out>, read_from_server=<optimized out>) at /home/buildbot/buildbot/build/sql/net_serv.cc:1227
#7  0x000056335c32fe7d in do_command (thd=0x7f0adc02b898) at /home/buildbot/buildbot/build/sql/sql_parse.cc:1271
#8  0x000056335c3f780f in do_handle_one_connection (connect=connect@entry=0x5633626311a8) at /home/buildbot/buildbot/build/sql/sql_connect.cc:1402
#9  0x000056335c3f7934 in handle_one_connection (arg=0x5633626311a8) at /home/buildbot/buildbot/build/sql/sql_connect.cc:1308
#10 0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 35 (Thread 0x7f0a38a02700 (LWP 6170)):
#0  0x00007f0ae3f7f360 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c6f503b in os_event::wait (this=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:161
#2  os_event::wait_low (reset_sig_count=<optimized out>, this=0x56335e8c7220) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:331
#3  os_event_wait_low (event=0x56335e8c7220, reset_sig_count=reset_sig_count@entry=0) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:520
#4  0x000056335c782321 in srv_resume_thread (wait=true, slot=0x56335d3875f0 <srv_sys+304>, sig_count=<optimized out>, timeout_usec=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0srv.cc:912
#5  srv_worker_thread (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0srv.cc:2495
#6  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 34 (Thread 0x7f0ae00a2700 (LWP 6186)):
#0  0x00007f0ae361874d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000056335ca938fd in vio_io_wait (vio=vio@entry=0x5633621a2108, event=<optimized out>, timeout=28800000) at /home/buildbot/buildbot/build/vio/viosocket.c:962
#2  0x000056335ca939f6 in vio_socket_io_wait (vio=0x5633621a2108, event=<optimized out>) at /home/buildbot/buildbot/build/vio/viosocket.c:119
#3  0x000056335ca93c24 in vio_read (vio=0x5633621a2108, buf=0x5633624f5458 "\236", size=4) at /home/buildbot/buildbot/build/vio/viosocket.c:196
#4  0x000056335c27ba9a in my_real_read (net=0x563362507618, complen=complen@entry=0x7f0ae00a1e00, header=1 '\001') at /home/buildbot/buildbot/build/sql/net_serv.cc:962
#5  0x000056335c27c955 in my_net_read_packet_reallen (net=0x563362507618, read_from_server=<optimized out>, reallen=reallen@entry=0x7f0ae00a1e58) at /home/buildbot/buildbot/build/sql/net_serv.cc:1243
#6  0x000056335c27caad in my_net_read_packet (net=<optimized out>, read_from_server=<optimized out>) at /home/buildbot/buildbot/build/sql/net_serv.cc:1227
#7  0x000056335c32fe7d in do_command (thd=0x5633625073b8) at /home/buildbot/buildbot/build/sql/sql_parse.cc:1271
#8  0x000056335c3f780f in do_handle_one_connection (connect=connect@entry=0x5633623ad468) at /home/buildbot/buildbot/build/sql/sql_connect.cc:1402
#9  0x000056335c3f7934 in handle_one_connection (arg=0x5633623ad468) at /home/buildbot/buildbot/build/sql/sql_connect.cc:1308
#10 0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 33 (Thread 0x7f0ae0360700 (LWP 6178)):
#0  0x00007f0ae361874d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000056335ca938fd in vio_io_wait (vio=vio@entry=0x5633620691a8, event=<optimized out>, timeout=28800000) at /home/buildbot/buildbot/build/vio/viosocket.c:962
#2  0x000056335ca939f6 in vio_socket_io_wait (vio=0x5633620691a8, event=<optimized out>) at /home/buildbot/buildbot/build/vio/viosocket.c:119
#3  0x000056335ca93c24 in vio_read (vio=0x5633620691a8, buf=0x5633621cf7e8 "(", size=4) at /home/buildbot/buildbot/build/vio/viosocket.c:196
#4  0x000056335c27ba9a in my_real_read (net=0x563362073468, complen=complen@entry=0x7f0ae035fe00, header=1 '\001') at /home/buildbot/buildbot/build/sql/net_serv.cc:962
#5  0x000056335c27c955 in my_net_read_packet_reallen (net=0x563362073468, read_from_server=<optimized out>, reallen=reallen@entry=0x7f0ae035fe58) at /home/buildbot/buildbot/build/sql/net_serv.cc:1243
#6  0x000056335c27caad in my_net_read_packet (net=<optimized out>, read_from_server=<optimized out>) at /home/buildbot/buildbot/build/sql/net_serv.cc:1227
#7  0x000056335c32fe7d in do_command (thd=0x563362073208) at /home/buildbot/buildbot/build/sql/sql_parse.cc:1271
#8  0x000056335c3f780f in do_handle_one_connection (connect=connect@entry=0x563362068e08) at /home/buildbot/buildbot/build/sql/sql_connect.cc:1402
#9  0x000056335c3f7934 in handle_one_connection (arg=0x563362068e08) at /home/buildbot/buildbot/build/sql/sql_connect.cc:1308
#10 0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 32 (Thread 0x7f0a39203700 (LWP 6169)):
#0  0x00007f0ae3f7f360 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c6f503b in os_event::wait (this=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:161
#2  os_event::wait_low (reset_sig_count=<optimized out>, this=0x56335e8c71a0) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:331
#3  os_event_wait_low (event=0x56335e8c71a0, reset_sig_count=reset_sig_count@entry=0) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:520
#4  0x000056335c782321 in srv_resume_thread (wait=true, slot=0x56335d3875b8 <srv_sys+248>, sig_count=<optimized out>, timeout_usec=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0srv.cc:912
#5  srv_worker_thread (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0srv.cc:2495
#6  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 31 (Thread 0x7f0a4452e700 (LWP 6193)):
#0  0x00007f0ae3f7f709 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c271427 in inline_mysql_cond_timedwait (src_line=3006, abstime=0x7f0a4452de30, mutex=0x56335d406fe0 <LOCK_thread_cache>, that=0x56335d4099c0 <COND_thread_cache>, src_file=<optimized out>) at /home/buildbot/buildbot/build/include/mysql/psi/mysql_thread.h:1215
#2  cache_thread (thd=0x5633622a5be8) at /home/buildbot/buildbot/build/sql/mysqld.cc:3005
#3  one_thread_per_connection_end (thd=0x5633622a5be8, put_in_cache=<optimized out>) at /home/buildbot/buildbot/build/sql/mysqld.cc:3092
#4  0x000056335c3f779e in do_handle_one_connection (connect=connect@entry=0x563362356938) at /home/buildbot/buildbot/build/sql/sql_connect.cc:1421
#5  0x000056335c3f7934 in handle_one_connection (arg=0x563362356938) at /home/buildbot/buildbot/build/sql/sql_connect.cc:1308
#6  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 30 (Thread 0x7f0a39a04700 (LWP 6168)):
#0  0x00007f0ae3f7f360 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c6f503b in os_event::wait (this=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:161
#2  os_event::wait_low (reset_sig_count=<optimized out>, this=0x56335e8c72a0) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:331
#3  os_event_wait_low (event=0x56335e8c72a0, reset_sig_count=reset_sig_count@entry=0) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:520
#4  0x000056335c782321 in srv_resume_thread (wait=true, slot=0x56335d387628 <srv_sys+360>, sig_count=<optimized out>, timeout_usec=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0srv.cc:912
#5  srv_worker_thread (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0srv.cc:2495
#6  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 29 (Thread 0x7f0ae03aa700 (LWP 6177)):
#0  0x00007f0ae361874d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000056335ca938fd in vio_io_wait (vio=vio@entry=0x563362068e68, event=<optimized out>, timeout=28800000) at /home/buildbot/buildbot/build/vio/viosocket.c:962
#2  0x000056335ca939f6 in vio_socket_io_wait (vio=0x563362068e68, event=<optimized out>) at /home/buildbot/buildbot/build/vio/viosocket.c:119
#3  0x000056335ca93c24 in vio_read (vio=0x563362068e68, buf=0x7f0adc01b518 "\a", size=4) at /home/buildbot/buildbot/build/vio/viosocket.c:196
#4  0x000056335c27ba9a in my_real_read (net=0x7f0adc012e58, complen=complen@entry=0x7f0ae03a9e00, header=1 '\001') at /home/buildbot/buildbot/build/sql/net_serv.cc:962
#5  0x000056335c27c955 in my_net_read_packet_reallen (net=0x7f0adc012e58, read_from_server=<optimized out>, reallen=reallen@entry=0x7f0ae03a9e58) at /home/buildbot/buildbot/build/sql/net_serv.cc:1243
#6  0x000056335c27caad in my_net_read_packet (net=<optimized out>, read_from_server=<optimized out>) at /home/buildbot/buildbot/build/sql/net_serv.cc:1227
#7  0x000056335c32fe7d in do_command (thd=0x7f0adc012bf8) at /home/buildbot/buildbot/build/sql/sql_parse.cc:1271
#8  0x000056335c3f780f in do_handle_one_connection (connect=connect@entry=0x563362068e08) at /home/buildbot/buildbot/build/sql/sql_connect.cc:1402
#9  0x000056335c3f7934 in handle_one_connection (arg=0x563362068e08) at /home/buildbot/buildbot/build/sql/sql_connect.cc:1308
#10 0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 28 (Thread 0x7f0a3a205700 (LWP 6167)):
#0  0x00007f0ae3f7f709 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c6f4aa1 in os_event::timed_wait (this=this@entry=0x56335e8c7120, abstime=abstime@entry=0x7f0a3a204d10) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:281
#2  0x000056335c6f4ce7 in os_event::wait_time_low (this=0x56335e8c7120, time_in_usec=time_in_usec@entry=10000, reset_sig_count=<optimized out>, reset_sig_count@entry=21680) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:403
#3  0x000056335c6f4fda in os_event_wait_time_low (event=<optimized out>, time_in_usec=time_in_usec@entry=10000, reset_sig_count=reset_sig_count@entry=21680) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:503
#4  0x000056335c784419 in srv_resume_thread (timeout_usec=10000, wait=<optimized out>, sig_count=21680, slot=0x56335d387580 <srv_sys+192>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0srv.cc:909
#5  srv_purge_coordinator_suspend (rseg_history_len=64, slot=0x56335d387580 <srv_sys+192>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0srv.cc:2632
#6  srv_purge_coordinator_thread (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0srv.cc:2707
#7  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 27 (Thread 0x7f0a3b207700 (LWP 6165)):
#0  0x00007f0ae3f7f709 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c6f4aa1 in os_event::timed_wait (this=this@entry=0x563361fb35d0, abstime=abstime@entry=0x7f0a3b206c50) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:281
#2  0x000056335c6f4ce7 in os_event::wait_time_low (this=0x563361fb35d0, time_in_usec=time_in_usec@entry=5000000, reset_sig_count=<optimized out>, reset_sig_count@entry=13) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:403
#3  0x000056335c6f4fda in os_event_wait_time_low (event=<optimized out>, time_in_usec=time_in_usec@entry=5000000, reset_sig_count=reset_sig_count@entry=13) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:503
#4  0x000056335c7cfe0b in ib_wqueue_timedwait (wq=wq@entry=0x563361f468e0, wait_in_usecs=wait_in_usecs@entry=5000000) at /home/buildbot/buildbot/build/storage/innobase/ut/ut0wqueue.cc:163
#5  0x000056335c8b94ea in fts_optimize_thread (arg=0x563361f468e0) at /home/buildbot/buildbot/build/storage/innobase/fts/fts0opt.cc:2897
#6  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 26 (Thread 0x7f0a467da700 (LWP 6164)):
#0  0x00007f0ae3f7f709 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c6f4aa1 in os_event::timed_wait (this=this@entry=0x563361f871d0, abstime=abstime@entry=0x7f0a467d9da0) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:281
#2  0x000056335c6f4ce7 in os_event::wait_time_low (this=0x563361f871d0, time_in_usec=time_in_usec@entry=10000000, reset_sig_count=<optimized out>, reset_sig_count@entry=0) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:403
#3  0x000056335c6f4fda in os_event_wait_time_low (event=<optimized out>, time_in_usec=time_in_usec@entry=10000000, reset_sig_count=reset_sig_count@entry=0) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:503
#4  0x000056335c86cbf3 in dict_stats_thread () at /home/buildbot/buildbot/build/storage/innobase/dict/dict0stats_bg.cc:460
#5  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 25 (Thread 0x7f0a44fd7700 (LWP 6163)):
#0  0x00007f0ae3f7f709 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c6f4aa1 in os_event::timed_wait (this=this@entry=0x56335e8c73a0, abstime=abstime@entry=0x7f0a44fd6de0) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:281
#2  0x000056335c6f4ce7 in os_event::wait_time_low (this=0x56335e8c73a0, time_in_usec=time_in_usec@entry=5000000, reset_sig_count=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:403
#3  0x000056335c6f4fda in os_event_wait_time_low (event=<optimized out>, time_in_usec=time_in_usec@entry=5000000, reset_sig_count=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:503
#4  0x000056335c780000 in srv_monitor_thread () at /home/buildbot/buildbot/build/storage/innobase/srv/srv0srv.cc:1684
#5  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 24 (Thread 0x7f0ae03f4700 (LWP 6176)):
#0  0x00007f0ae3f7f360 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c28e3e3 in inline_mysql_cond_wait (src_line=513, that=<optimized out>, mutex=<optimized out>, src_file=<optimized out>) at /home/buildbot/buildbot/build/include/mysql/psi/mysql_thread.h:1178
#2  handle_slave_background (arg=<optimized out>) at /home/buildbot/buildbot/build/sql/slave.cc:513
#3  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 23 (Thread 0x7f0a457d8700 (LWP 6162)):
#0  0x00007f0ae3f7f709 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c6f4aa1 in os_event::timed_wait (this=this@entry=0x56335e8c7320, abstime=abstime@entry=0x7f0a457d7d00) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:281
#2  0x000056335c6f4ce7 in os_event::wait_time_low (this=0x56335e8c7320, time_in_usec=time_in_usec@entry=1000000, reset_sig_count=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:403
#3  0x000056335c6f4fda in os_event_wait_time_low (event=<optimized out>, time_in_usec=time_in_usec@entry=1000000, reset_sig_count=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:503
#4  0x000056335c78095c in srv_error_monitor_thread () at /home/buildbot/buildbot/build/storage/innobase/srv/srv0srv.cc:1848
#5  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 22 (Thread 0x7f0ae4c4f700 (LWP 6175)):
#0  0x00007f0ae3f83156 in sigwait () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c2701af in signal_hand (arg=<optimized out>) at /home/buildbot/buildbot/build/sql/mysqld.cc:3556
#2  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#3  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 21 (Thread 0x7f0a45fd9700 (LWP 6161)):
#0  0x00007f0ae3f7f709 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c6f4aa1 in os_event::timed_wait (this=this@entry=0x563361f63c20, abstime=abstime@entry=0x7f0a45fd8d90) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:281
#2  0x000056335c6f4ce7 in os_event::wait_time_low (this=this@entry=0x563361f63c20, time_in_usec=time_in_usec@entry=1000000, reset_sig_count=<optimized out>, reset_sig_count@entry=1) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:403
#3  0x000056335c6f4fda in os_event_wait_time_low (event=event@entry=0x563361f63c20, time_in_usec=time_in_usec@entry=1000000, reset_sig_count=reset_sig_count@entry=1) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:503
#4  0x000056335c6c93d4 in lock_wait_timeout_thread () at /home/buildbot/buildbot/build/storage/innobase/lock/lock0wait.cc:543
#5  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 20 (Thread 0x7f0a38201700 (LWP 6171)):
#0  0x00007f0ae3f7f360 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c6f503b in os_event::wait (this=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:161
#2  os_event::wait_low (reset_sig_count=<optimized out>, this=0x56335e8c7420) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:331
#3  os_event_wait_low (event=0x56335e8c7420, reset_sig_count=reset_sig_count@entry=0) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:520
#4  0x000056335c81d9b9 in buf_dump_thread () at /home/buildbot/buildbot/build/storage/innobase/buf/buf0dump.cc:835
#5  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 19 (Thread 0x7f0a3cc80700 (LWP 6158)):
#0  0x00007f0ae3f7f360 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c6f503b in os_event::wait (this=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:161
#2  os_event::wait_low (reset_sig_count=<optimized out>, this=0x563361f64d20) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:331
#3  os_event_wait_low (event=0x563361f64d20, reset_sig_count=reset_sig_count@entry=0) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:520
#4  0x000056335c823463 in buf_flush_page_cleaner_worker (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/buf/buf0flu.cc:3495
#5  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 18 (Thread 0x7f0a3aa06700 (LWP 6166)):
#0  0x00007f0ae3f82c1d in nanosleep () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c6f5240 in os_thread_sleep (tm=tm@entry=1000000) at /home/buildbot/buildbot/build/storage/innobase/os/os0thread.cc:225
#2  0x000056335c7818c3 in srv_master_sleep () at /home/buildbot/buildbot/build/storage/innobase/srv/srv0srv.cc:2320
#3  srv_master_thread (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0srv.cc:2361
#4  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 17 (Thread 0x7f0a3d481700 (LWP 6157)):
#0  0x00007f0ae3f7f360 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c6f503b in os_event::wait (this=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:161
#2  os_event::wait_low (reset_sig_count=<optimized out>, this=0x563361f64d20) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:331
#3  os_event_wait_low (event=0x563361f64d20, reset_sig_count=reset_sig_count@entry=0) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:520
#4  0x000056335c823463 in buf_flush_page_cleaner_worker (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/buf/buf0flu.cc:3495
#5  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 16 (Thread 0x7f0a3c47f700 (LWP 6159)):
#0  0x00007f0ae3f7f360 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c6f503b in os_event::wait (this=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:161
#2  os_event::wait_low (reset_sig_count=<optimized out>, this=0x563361f64d20) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:331
#3  os_event_wait_low (event=0x563361f64d20, reset_sig_count=reset_sig_count@entry=0) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:520
#4  0x000056335c823463 in buf_flush_page_cleaner_worker (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/buf/buf0flu.cc:3495
#5  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 15 (Thread 0x7f0a3e483700 (LWP 6155)):
#0  0x00007f0ae3f7f709 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c6f4aa1 in os_event::timed_wait (this=this@entry=0x56335e8c74a0, abstime=abstime@entry=0x7f0a3e482c20) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:281
#2  0x000056335c6f4ce7 in os_event::wait_time_low (this=0x56335e8c74a0, time_in_usec=time_in_usec@entry=962000, reset_sig_count=<optimized out>, reset_sig_count@entry=9503) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:403
#3  0x000056335c6f4fda in os_event_wait_time_low (event=<optimized out>, time_in_usec=time_in_usec@entry=962000, reset_sig_count=reset_sig_count@entry=9503) at /home/buildbot/buildbot/build/storage/innobase/os/os0event.cc:503
#4  0x000056335c8238c8 in pc_sleep_if_needed (cur_time=1546392232141, sig_count=9503, next_loop_time=1546392233103) at /home/buildbot/buildbot/build/storage/innobase/buf/buf0flu.cc:2685
#5  buf_flush_page_cleaner_coordinator () at /home/buildbot/buildbot/build/storage/innobase/buf/buf0flu.cc:3144
#6  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 14 (Thread 0x7f0a3fc86700 (LWP 6152)):
#0  0x00007f0ae49de64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000056335c6ec54c in LinuxAIOHandler::collect (this=this@entry=0x7f0a3fc85c90) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:1920
#2  0x000056335c6ecb22 in LinuxAIOHandler::poll (this=this@entry=0x7f0a3fc85c90, m1=m1@entry=0x7f0a3fc85d30, m2=m2@entry=0x7f0a3fc85d40, request=request@entry=0x7f0a3fc85d50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2065
#3  0x000056335c6f35d7 in os_aio_linux_handler (request=0x7f0a3fc85d50, m2=0x7f0a3fc85d40, m1=0x7f0a3fc85d30, global_segment=7) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2119
#4  os_aio_handler (segment=segment@entry=7, m1=m1@entry=0x7f0a3fc85d30, m2=m2@entry=0x7f0a3fc85d40, request=request@entry=0x7f0a3fc85d50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:5672
#5  0x000056335c87a5de in fil_aio_wait (segment=segment@entry=7) at /home/buildbot/buildbot/build/storage/innobase/fil/fil0fil.cc:4473
#6  0x000056335c785568 in io_handler_thread (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0start.cc:327
#7  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 13 (Thread 0x7f0a3ec84700 (LWP 6154)):
#0  0x00007f0ae49de64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000056335c6ec54c in LinuxAIOHandler::collect (this=this@entry=0x7f0a3ec83c90) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:1920
#2  0x000056335c6ecb22 in LinuxAIOHandler::poll (this=this@entry=0x7f0a3ec83c90, m1=m1@entry=0x7f0a3ec83d30, m2=m2@entry=0x7f0a3ec83d40, request=request@entry=0x7f0a3ec83d50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2065
#3  0x000056335c6f35d7 in os_aio_linux_handler (request=0x7f0a3ec83d50, m2=0x7f0a3ec83d40, m1=0x7f0a3ec83d30, global_segment=9) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2119
#4  os_aio_handler (segment=segment@entry=9, m1=m1@entry=0x7f0a3ec83d30, m2=m2@entry=0x7f0a3ec83d40, request=request@entry=0x7f0a3ec83d50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:5672
#5  0x000056335c87a5de in fil_aio_wait (segment=segment@entry=9) at /home/buildbot/buildbot/build/storage/innobase/fil/fil0fil.cc:4473
#6  0x000056335c785568 in io_handler_thread (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0start.cc:327
#7  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 12 (Thread 0x7f0a40c88700 (LWP 6150)):
#0  0x00007f0ae49de64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000056335c6ec54c in LinuxAIOHandler::collect (this=this@entry=0x7f0a40c87c90) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:1920
#2  0x000056335c6ecb22 in LinuxAIOHandler::poll (this=this@entry=0x7f0a40c87c90, m1=m1@entry=0x7f0a40c87d30, m2=m2@entry=0x7f0a40c87d40, request=request@entry=0x7f0a40c87d50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2065
#3  0x000056335c6f35d7 in os_aio_linux_handler (request=0x7f0a40c87d50, m2=0x7f0a40c87d40, m1=0x7f0a40c87d30, global_segment=5) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2119
#4  os_aio_handler (segment=segment@entry=5, m1=m1@entry=0x7f0a40c87d30, m2=m2@entry=0x7f0a40c87d40, request=request@entry=0x7f0a40c87d50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:5672
#5  0x000056335c87a5de in fil_aio_wait (segment=segment@entry=5) at /home/buildbot/buildbot/build/storage/innobase/fil/fil0fil.cc:4473
#6  0x000056335c785568 in io_handler_thread (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0start.cc:327
#7  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 11 (Thread 0x7f0a3f485700 (LWP 6153)):
#0  0x00007f0ae49de64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000056335c6ec54c in LinuxAIOHandler::collect (this=this@entry=0x7f0a3f484c90) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:1920
#2  0x000056335c6ecb22 in LinuxAIOHandler::poll (this=this@entry=0x7f0a3f484c90, m1=m1@entry=0x7f0a3f484d30, m2=m2@entry=0x7f0a3f484d40, request=request@entry=0x7f0a3f484d50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2065
#3  0x000056335c6f35d7 in os_aio_linux_handler (request=0x7f0a3f484d50, m2=0x7f0a3f484d40, m1=0x7f0a3f484d30, global_segment=8) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2119
#4  os_aio_handler (segment=segment@entry=8, m1=m1@entry=0x7f0a3f484d30, m2=m2@entry=0x7f0a3f484d40, request=request@entry=0x7f0a3f484d50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:5672
#5  0x000056335c87a5de in fil_aio_wait (segment=segment@entry=8) at /home/buildbot/buildbot/build/storage/innobase/fil/fil0fil.cc:4473
#6  0x000056335c785568 in io_handler_thread (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0start.cc:327
#7  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 10 (Thread 0x7f0ae0bf5700 (LWP 6144)):
#0  0x00007f0ae3f7f709 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c922a06 in inline_mysql_cond_timedwait (abstime=0x7f0ae0bf4e10, mutex=0x56335dc8e520 <LOCK_checkpoint>, that=0x56335dc8e560 <COND_checkpoint>, src_file=<optimized out>, src_line=<optimized out>) at /home/buildbot/buildbot/build/include/mysql/psi/mysql_thread.h:1215
#2  my_service_thread_sleep (control=control@entry=0x56335d38a1c0 <checkpoint_control>, sleep_time=<optimized out>) at /home/buildbot/buildbot/build/storage/maria/ma_servicethread.c:115
#3  0x000056335c91b1c9 in ma_checkpoint_background (arg=0x1e) at /home/buildbot/buildbot/build/storage/maria/ma_checkpoint.c:707
#4  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 9 (Thread 0x7f0a40487700 (LWP 6151)):
#0  0x00007f0ae49de64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000056335c6ec54c in LinuxAIOHandler::collect (this=this@entry=0x7f0a40486c90) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:1920
#2  0x000056335c6ecb22 in LinuxAIOHandler::poll (this=this@entry=0x7f0a40486c90, m1=m1@entry=0x7f0a40486d30, m2=m2@entry=0x7f0a40486d40, request=request@entry=0x7f0a40486d50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2065
#3  0x000056335c6f35d7 in os_aio_linux_handler (request=0x7f0a40486d50, m2=0x7f0a40486d40, m1=0x7f0a40486d30, global_segment=6) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2119
#4  os_aio_handler (segment=segment@entry=6, m1=m1@entry=0x7f0a40486d30, m2=m2@entry=0x7f0a40486d40, request=request@entry=0x7f0a40486d50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:5672
#5  0x000056335c87a5de in fil_aio_wait (segment=segment@entry=6) at /home/buildbot/buildbot/build/storage/innobase/fil/fil0fil.cc:4473
#6  0x000056335c785568 in io_handler_thread (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0start.cc:327
#7  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 8 (Thread 0x7f0ae3306700 (LWP 6143)):
#0  0x00007f0ae3f7f709 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c9fc050 in inline_mysql_cond_timedwait (abstime=0x7f0ae3305e90, that=<optimized out>, mutex=<optimized out>, src_file=<optimized out>, src_line=<optimized out>) at /home/buildbot/buildbot/build/include/mysql/psi/mysql_thread.h:1215
#2  timer_handler (arg=<optimized out>) at /home/buildbot/buildbot/build/mysys/thr_timer.c:292
#3  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 7 (Thread 0x7f0a41489700 (LWP 6149)):
#0  0x00007f0ae49de64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000056335c6ec54c in LinuxAIOHandler::collect (this=this@entry=0x7f0a41488c90) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:1920
#2  0x000056335c6ecb22 in LinuxAIOHandler::poll (this=this@entry=0x7f0a41488c90, m1=m1@entry=0x7f0a41488d30, m2=m2@entry=0x7f0a41488d40, request=request@entry=0x7f0a41488d50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2065
#3  0x000056335c6f35d7 in os_aio_linux_handler (request=0x7f0a41488d50, m2=0x7f0a41488d40, m1=0x7f0a41488d30, global_segment=4) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2119
#4  os_aio_handler (segment=segment@entry=4, m1=m1@entry=0x7f0a41488d30, m2=m2@entry=0x7f0a41488d40, request=request@entry=0x7f0a41488d50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:5672
#5  0x000056335c87a5de in fil_aio_wait (segment=segment@entry=4) at /home/buildbot/buildbot/build/storage/innobase/fil/fil0fil.cc:4473
#6  0x000056335c785568 in io_handler_thread (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0start.cc:327
#7  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7f0a41c8a700 (LWP 6148)):
#0  0x00007f0ae49de64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000056335c6ec54c in LinuxAIOHandler::collect (this=this@entry=0x7f0a41c89c90) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:1920
#2  0x000056335c6ecb22 in LinuxAIOHandler::poll (this=this@entry=0x7f0a41c89c90, m1=m1@entry=0x7f0a41c89d30, m2=m2@entry=0x7f0a41c89d40, request=request@entry=0x7f0a41c89d50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2065
#3  0x000056335c6f35d7 in os_aio_linux_handler (request=0x7f0a41c89d50, m2=0x7f0a41c89d40, m1=0x7f0a41c89d30, global_segment=3) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2119
#4  os_aio_handler (segment=segment@entry=3, m1=m1@entry=0x7f0a41c89d30, m2=m2@entry=0x7f0a41c89d40, request=request@entry=0x7f0a41c89d50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:5672
#5  0x000056335c87a5de in fil_aio_wait (segment=segment@entry=3) at /home/buildbot/buildbot/build/storage/innobase/fil/fil0fil.cc:4473
#6  0x000056335c785568 in io_handler_thread (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0start.cc:327
#7  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7f0ae4dee740 (LWP 6142)):
#0  0x00007f0ae361874d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000056335c27638a in handle_connections_sockets () at /home/buildbot/buildbot/build/sql/mysqld.cc:6725
#2  0x000056335c27979f in mysqld_main (argc=21, argv=0x56335e783d10) at /home/buildbot/buildbot/build/sql/mysqld.cc:6194
#3  0x00007f0ae353d830 in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#4  0x000056335c26d36d in _start ()

Thread 4 (Thread 0x7f0a4248b700 (LWP 6147)):
#0  0x00007f0ae49de64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000056335c6ec54c in LinuxAIOHandler::collect (this=this@entry=0x7f0a4248ac90) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:1920
#2  0x000056335c6ecb22 in LinuxAIOHandler::poll (this=this@entry=0x7f0a4248ac90, m1=m1@entry=0x7f0a4248ad30, m2=m2@entry=0x7f0a4248ad40, request=request@entry=0x7f0a4248ad50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2065
#3  0x000056335c6f35d7 in os_aio_linux_handler (request=0x7f0a4248ad50, m2=0x7f0a4248ad40, m1=0x7f0a4248ad30, global_segment=2) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2119
#4  os_aio_handler (segment=segment@entry=2, m1=m1@entry=0x7f0a4248ad30, m2=m2@entry=0x7f0a4248ad40, request=request@entry=0x7f0a4248ad50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:5672
#5  0x000056335c87a5de in fil_aio_wait (segment=segment@entry=2) at /home/buildbot/buildbot/build/storage/innobase/fil/fil0fil.cc:4473
#6  0x000056335c785568 in io_handler_thread (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0start.cc:327
#7  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7f0a42c8c700 (LWP 6146)):
#0  0x00007f0ae49de64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000056335c6ec54c in LinuxAIOHandler::collect (this=this@entry=0x7f0a42c8bc90) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:1920
#2  0x000056335c6ecb22 in LinuxAIOHandler::poll (this=this@entry=0x7f0a42c8bc90, m1=m1@entry=0x7f0a42c8bd30, m2=m2@entry=0x7f0a42c8bd40, request=request@entry=0x7f0a42c8bd50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2065
#3  0x000056335c6f35d7 in os_aio_linux_handler (request=0x7f0a42c8bd50, m2=0x7f0a42c8bd40, m1=0x7f0a42c8bd30, global_segment=1) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2119
#4  os_aio_handler (segment=segment@entry=1, m1=m1@entry=0x7f0a42c8bd30, m2=m2@entry=0x7f0a42c8bd40, request=request@entry=0x7f0a42c8bd50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:5672
#5  0x000056335c87a5de in fil_aio_wait (segment=segment@entry=1) at /home/buildbot/buildbot/build/storage/innobase/fil/fil0fil.cc:4473
#6  0x000056335c785568 in io_handler_thread (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0start.cc:327
#7  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7f0a4348d700 (LWP 6145)):
#0  0x00007f0ae49de64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000056335c6ec54c in LinuxAIOHandler::collect (this=this@entry=0x7f0a4348cc90) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:1920
#2  0x000056335c6ecb22 in LinuxAIOHandler::poll (this=this@entry=0x7f0a4348cc90, m1=m1@entry=0x7f0a4348cd30, m2=m2@entry=0x7f0a4348cd40, request=request@entry=0x7f0a4348cd50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2065
#3  0x000056335c6f35d7 in os_aio_linux_handler (request=0x7f0a4348cd50, m2=0x7f0a4348cd40, m1=0x7f0a4348cd30, global_segment=0) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:2119
#4  os_aio_handler (segment=segment@entry=0, m1=m1@entry=0x7f0a4348cd30, m2=m2@entry=0x7f0a4348cd40, request=request@entry=0x7f0a4348cd50) at /home/buildbot/buildbot/build/storage/innobase/os/os0file.cc:5672
#5  0x000056335c87a5de in fil_aio_wait (segment=segment@entry=0) at /home/buildbot/buildbot/build/storage/innobase/fil/fil0fil.cc:4473
#6  0x000056335c785568 in io_handler_thread (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/innobase/srv/srv0start.cc:327
#7  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7f0a44578700 (LWP 6192)):
#0  0x00007f0ae3f8059f in pthread_kill () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x000056335c4e2a09 in handle_fatal_signal (sig=11) at /home/buildbot/buildbot/build/sql/signal_handler.cc:305
#2  <signal handler called>
#3  general_log_write (thd=thd@entry=0x7f0adc0f2d38, command=command@entry=COM_QUERY, query=0x7f0adc09f230 "DROP PROCEDURE IF EXISTS sp_grammar ; CREATE PROCEDURE IF NOT EXISTS sp_6191 () BEGIN UPDATE IGNORE `view_table1_innodb_int_autoinc` SET `col_char_latin1_default_null` = '' ORDER BY `col_set_latin1_de"..., query_length=251) at /home/buildbot/buildbot/build/sql/log.cc:6587
#4  0x000056335c32ea7a in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x7f0adc0f2d38, packet=0x7f0adc095249 "DROP PROCEDURE IF EXISTS sp_grammar ; CREATE PROCEDURE IF NOT EXISTS sp_6191 () BEGIN UPDATE IGNORE `view_table1_innodb_int_autoinc` SET `col_char_latin1_default_null` = '' ORDER BY `col_set_latin1_de"..., packet_length=packet_length@entry=252, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /home/buildbot/buildbot/build/sql/sql_parse.cc:1834
#5  0x000056335c32ff1e in do_command (thd=0x7f0adc0f2d38) at /home/buildbot/buildbot/build/sql/sql_parse.cc:1396
#6  0x000056335c3f780f in do_handle_one_connection (connect=connect@entry=0x563362242c18) at /home/buildbot/buildbot/build/sql/sql_connect.cc:1402
#7  0x000056335c3f7934 in handle_one_connection (arg=0x563362242c18) at /home/buildbot/buildbot/build/sql/sql_connect.cc:1308
#8  0x00007f0ae3f796ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f0ae362441d in clone () from /lib/x86_64-linux-gnu/libc.so.6