[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 SIGABRT, Aborted.
#0  0x00007fb38a493611 in __pthread_kill (threadid=<optimized out>, signo=6) at ../nptl/sysdeps/unix/sysv/linux/pthread_kill.c:61
61	../nptl/sysdeps/unix/sysv/linux/pthread_kill.c: No such file or directory.

Thread 38 (Thread 0x7fb38bb72780 (LWP 24778)):
#0  0x00007fb38998dc9d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00005615a4f48c64 in handle_connections_sockets () at /home/travis/src/sql/mysqld.cc:6687
#2  0x00005615a4f47f39 in mysqld_main (argc=21, argv=0x5615a858f1e8) at /home/travis/src/sql/mysqld.cc:6156
#3  0x00005615a4f3c3b5 in main (argc=21, argv=0x7ffd3d38af58) at /home/travis/src/sql/main.cc:25

Thread 37 (Thread 0x7fb3657a0700 (LWP 24827)):
#0  0x00007fb38998dc9d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00005615a5b5d69f in vio_io_wait (vio=0x5615a9205480, event=VIO_IO_EVENT_READ, timeout=28800000) at /home/travis/src/vio/viosocket.c:962
#2  0x00005615a5b5bda1 in vio_socket_io_wait (vio=0x5615a9205480, event=VIO_IO_EVENT_READ) at /home/travis/src/vio/viosocket.c:119
#3  0x00005615a5b5bf87 in vio_read (vio=0x5615a9205480, buf=0x7fb3300159d0 "b", size=4) at /home/travis/src/vio/viosocket.c:196
#4  0x00005615a4f53fcc in my_real_read (net=0x7fb33000b7d8, complen=0x7fb36579fd60, header=1 '\001') at /home/travis/src/sql/net_serv.cc:956
#5  0x00005615a4f5483b in my_net_read_packet_reallen (net=0x7fb33000b7d8, read_from_server=1 '\001', reallen=0x7fb36579fdc8) at /home/travis/src/sql/net_serv.cc:1237
#6  0x00005615a4f547ef in my_net_read_packet (net=0x7fb33000b7d8, read_from_server=1 '\001') at /home/travis/src/sql/net_serv.cc:1221
#7  0x00005615a5059e95 in do_command (thd=0x7fb33000b4c0) at /home/travis/src/sql/sql_parse.cc:1267
#8  0x00005615a51bfb11 in do_handle_one_connection (connect=0x5615a91fe400) at /home/travis/src/sql/sql_connect.cc:1402
#9  0x00005615a51bf89e in handle_one_connection (arg=0x5615a91fe400) at /home/travis/src/sql/sql_connect.cc:1308
#10 0x00007fb38a48e184 in start_thread (arg=0x7fb3657a0700) at pthread_create.c:312
#11 0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 36 (Thread 0x7fb37405a700 (LWP 24823)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00005615a5afcfff in safe_cond_timedwait (cond=0x7fb328000a38, mp=0x7fb3200f10b0, abstime=0x7fb3740578f0, file=0x5615a5f061c0 "/home/travis/src/include/mysql/psi/mysql_thread.h", line=1215) at /home/travis/src/mysys/thr_mutex.c:546
#2  0x00005615a5af95ef in inline_mysql_cond_timedwait (that=0x7fb328000a38, mutex=0x7fb3200f10b0, abstime=0x7fb3740578f0, src_file=0x5615a5f061f8 "/home/travis/src/mysys/thr_lock.c", src_line=576) at /home/travis/src/include/mysql/psi/mysql_thread.h:1215
#3  0x00005615a5af9c6a in wait_for_lock (wait=0x7fb3200f1160, data=0x7fb32805a7e0, in_wait_list=0 '\000', lock_wait_timeout=10) at /home/travis/src/mysys/thr_lock.c:576
#4  0x00005615a5afa7b8 in thr_lock (data=0x7fb32805a7e0, owner=0x7fb328002770, lock_wait_timeout=10) at /home/travis/src/mysys/thr_lock.c:1014
#5  0x00005615a5afb0a2 in thr_multi_lock (data=0x7fb328016820, count=1, owner=0x7fb328002770, lock_wait_timeout=10) at /home/travis/src/mysys/thr_lock.c:1295
#6  0x00005615a54760bd in mysql_lock_tables (thd=0x7fb328000c70, sql_lock=0x7fb3280167f8, flags=0) at /home/travis/src/sql/lock.cc:355
#7  0x00005615a5475ebe in mysql_lock_tables (thd=0x7fb328000c70, tables=0x7fb3280167f0, count=1, flags=0) at /home/travis/src/sql/lock.cc:304
#8  0x00005615a4fdab7d in lock_tables (thd=0x7fb328000c70, tables=0x7fb3280151a0, count=1, flags=0) at /home/travis/src/sql/sql_base.cc:5172
#9  0x00005615a4fda209 in open_and_lock_tables (thd=0x7fb328000c70, options=..., tables=0x7fb3280151a0, derived=true, flags=0, prelocking_strategy=0x7fb374057c70) at /home/travis/src/sql/sql_base.cc:4916
#10 0x00005615a4f9b2a9 in open_and_lock_tables (thd=0x7fb328000c70, tables=0x7fb3280151a0, derived=true, flags=0) at /home/travis/src/sql/sql_base.h:489
#11 0x00005615a506a39d in execute_sqlcom_select (thd=0x7fb328000c70, all_tables=0x7fb3280151a0) at /home/travis/src/sql/sql_parse.cc:6477
#12 0x00005615a5060ec0 in mysql_execute_command (thd=0x7fb328000c70) at /home/travis/src/sql/sql_parse.cc:3770
#13 0x00005615a506e228 in mysql_parse (thd=0x7fb328000c70, rawbuf=0x7fb328013a98 "SELECT GROUP_CONCAT( DATEDIFF( ( IS_FREE_LOCK( 'corporation' ) ), 19648 ), SHA1( `col_varchar_nokey` ) ) AS field1, `col_time_nokey` << -7660 AS field2, STDDEV( ( CAST( `col_int_key` AS UNSIGNED ) ) )"..., length=374, parser_state=0x7fb3740595e0, is_com_multi=false, is_next_command=false) at /home/travis/src/sql/sql_parse.cc:8013
#14 0x00005615a505b91e in dispatch_command (command=COM_QUERY, thd=0x7fb328000c70, packet=0x7fb32800b2d1 " SELECT GROUP_CONCAT( DATEDIFF( ( IS_FREE_LOCK( 'corporation' ) ), 19648 ), SHA1( `col_varchar_nokey` ) ) AS field1, `col_time_nokey` << -7660 AS field2, STDDEV( ( CAST( `col_int_key` AS UNSIGNED ) ) "..., packet_length=376, is_com_multi=false, is_next_command=false) at /home/travis/src/sql/sql_parse.cc:1842
#15 0x00005615a505a36a in do_command (thd=0x7fb328000c70) at /home/travis/src/sql/sql_parse.cc:1387
#16 0x00005615a51bfb11 in do_handle_one_connection (connect=0x5615a91fe400) at /home/travis/src/sql/sql_connect.cc:1402
#17 0x00005615a51bf89e in handle_one_connection (arg=0x5615a91fe400) at /home/travis/src/sql/sql_connect.cc:1308
#18 0x00007fb38a48e184 in start_thread (arg=0x7fb37405a700) at pthread_create.c:312
#19 0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 35 (Thread 0x7fb3740a4700 (LWP 24821)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00005615a5afcfff in safe_cond_timedwait (cond=0x7fb32c00c348, mp=0x7fb3200f10b0, abstime=0x7fb3740a18f0, file=0x5615a5f061c0 "/home/travis/src/include/mysql/psi/mysql_thread.h", line=1215) at /home/travis/src/mysys/thr_mutex.c:546
#2  0x00005615a5af95ef in inline_mysql_cond_timedwait (that=0x7fb32c00c348, mutex=0x7fb3200f10b0, abstime=0x7fb3740a18f0, src_file=0x5615a5f061f8 "/home/travis/src/mysys/thr_lock.c", src_line=576) at /home/travis/src/include/mysql/psi/mysql_thread.h:1215
#3  0x00005615a5af9c6a in wait_for_lock (wait=0x7fb3200f1160, data=0x7fb33412e740, in_wait_list=0 '\000', lock_wait_timeout=10) at /home/travis/src/mysys/thr_lock.c:576
#4  0x00005615a5afa7b8 in thr_lock (data=0x7fb33412e740, owner=0x7fb32c00e020, lock_wait_timeout=10) at /home/travis/src/mysys/thr_lock.c:1014
#5  0x00005615a5afb0a2 in thr_multi_lock (data=0x7fb32c024ed0, count=1, owner=0x7fb32c00e020, lock_wait_timeout=10) at /home/travis/src/mysys/thr_lock.c:1295
#6  0x00005615a54760bd in mysql_lock_tables (thd=0x7fb32c00c520, sql_lock=0x7fb32c024ea8, flags=0) at /home/travis/src/sql/lock.cc:355
#7  0x00005615a5475ebe in mysql_lock_tables (thd=0x7fb32c00c520, tables=0x7fb32c024ea0, count=1, flags=0) at /home/travis/src/sql/lock.cc:304
#8  0x00005615a4fdab7d in lock_tables (thd=0x7fb32c00c520, tables=0x7fb32c020878, count=1, flags=0) at /home/travis/src/sql/sql_base.cc:5172
#9  0x00005615a4fda209 in open_and_lock_tables (thd=0x7fb32c00c520, options=..., tables=0x7fb32c020878, derived=true, flags=0, prelocking_strategy=0x7fb3740a1c70) at /home/travis/src/sql/sql_base.cc:4916
#10 0x00005615a4f9b2a9 in open_and_lock_tables (thd=0x7fb32c00c520, tables=0x7fb32c020878, derived=true, flags=0) at /home/travis/src/sql/sql_base.h:489
#11 0x00005615a506a39d in execute_sqlcom_select (thd=0x7fb32c00c520, all_tables=0x7fb32c020878) at /home/travis/src/sql/sql_parse.cc:6477
#12 0x00005615a5060ec0 in mysql_execute_command (thd=0x7fb32c00c520) at /home/travis/src/sql/sql_parse.cc:3770
#13 0x00005615a506e228 in mysql_parse (thd=0x7fb32c00c520, rawbuf=0x7fb32c01f2f8 "SELECT CASE 'z' WHEN ( ABS( '1999-01-04' ) ) THEN '21:04:36.007622' WHEN ( CAST( ( ASIN( `col_datetime_nokey` ) ) AS BINARY ) ) THEN ( CURRENT_DATE() ) END AS field1, VAR_SAMP( 2212 ) AS field2, @A :="..., length=357, parser_state=0x7fb3740a35e0, is_com_multi=false, is_next_command=false) at /home/travis/src/sql/sql_parse.cc:8013
#14 0x00005615a505b91e in dispatch_command (command=COM_QUERY, thd=0x7fb32c00c520, packet=0x7fb32c016b31 " SELECT CASE 'z' WHEN ( ABS( '1999-01-04' ) ) THEN '21:04:36.007622' WHEN ( CAST( ( ASIN( `col_datetime_nokey` ) ) AS BINARY ) ) THEN ( CURRENT_DATE() ) END AS field1, VAR_SAMP( 2212 ) AS field2, @A :"..., packet_length=359, is_com_multi=false, is_next_command=false) at /home/travis/src/sql/sql_parse.cc:1842
#15 0x00005615a505a36a in do_command (thd=0x7fb32c00c520) at /home/travis/src/sql/sql_parse.cc:1387
#16 0x00005615a51bfb11 in do_handle_one_connection (connect=0x5615a912c6f0) at /home/travis/src/sql/sql_connect.cc:1402
#17 0x00005615a51bf89e in handle_one_connection (arg=0x5615a912c6f0) at /home/travis/src/sql/sql_connect.cc:1308
#18 0x00007fb38a48e184 in start_thread (arg=0x7fb3740a4700) at pthread_create.c:312
#19 0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 34 (Thread 0x7fb365756700 (LWP 24828)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00005615a5afcfff in safe_cond_timedwait (cond=0x5615a677ad20 <COND_thread_cache>, mp=0x5615a677d680 <LOCK_thread_cache>, abstime=0x7fb365755db0, file=0x5615a5b8c840 "/home/travis/src/include/mysql/psi/mysql_thread.h", line=1215) at /home/travis/src/mysys/thr_mutex.c:546
#2  0x00005615a4f3cc43 in inline_mysql_cond_timedwait (that=0x5615a677ad20 <COND_thread_cache>, mutex=0x5615a677d680 <LOCK_thread_cache>, abstime=0x7fb365755db0, src_file=0x5615a5b8e740 "/home/travis/src/sql/mysqld.cc", src_line=3001) at /home/travis/src/include/mysql/psi/mysql_thread.h:1215
#3  0x00005615a4f41cd9 in cache_thread (thd=0x7fb33c00b600) at /home/travis/src/sql/mysqld.cc:3000
#4  0x00005615a4f41f7d in one_thread_per_connection_end (thd=0x7fb33c00b600, put_in_cache=true) at /home/travis/src/sql/mysqld.cc:3087
#5  0x00005615a51bfbfa in do_handle_one_connection (connect=0x5615a912c6f0) at /home/travis/src/sql/sql_connect.cc:1421
#6  0x00005615a51bf89e in handle_one_connection (arg=0x5615a912c6f0) at /home/travis/src/sql/sql_connect.cc:1308
#7  0x00007fb38a48e184 in start_thread (arg=0x7fb365756700) at pthread_create.c:312
#8  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 33 (Thread 0x7fb3740ee700 (LWP 24819)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00005615a5afcfff in safe_cond_timedwait (cond=0x7fb3200010e8, mp=0x7fb3200f10b0, abstime=0x7fb3740eb9a0, file=0x5615a5f061c0 "/home/travis/src/include/mysql/psi/mysql_thread.h", line=1215) at /home/travis/src/mysys/thr_mutex.c:546
#2  0x00005615a5af95ef in inline_mysql_cond_timedwait (that=0x7fb3200010e8, mutex=0x7fb3200f10b0, abstime=0x7fb3740eb9a0, src_file=0x5615a5f061f8 "/home/travis/src/mysys/thr_lock.c", src_line=576) at /home/travis/src/include/mysql/psi/mysql_thread.h:1215
#3  0x00005615a5af9c6a in wait_for_lock (wait=0x7fb3200f1180, data=0x7fb334103cd0, in_wait_list=0 '\000', lock_wait_timeout=10) at /home/travis/src/mysys/thr_lock.c:576
#4  0x00005615a5afa7b8 in thr_lock (data=0x7fb334103cd0, owner=0x7fb320002e20, lock_wait_timeout=10) at /home/travis/src/mysys/thr_lock.c:1014
#5  0x00005615a5afb0a2 in thr_multi_lock (data=0x7fb320018820, count=1, owner=0x7fb320002e20, lock_wait_timeout=10) at /home/travis/src/mysys/thr_lock.c:1295
#6  0x00005615a54760bd in mysql_lock_tables (thd=0x7fb320001320, sql_lock=0x7fb3200187f8, flags=0) at /home/travis/src/sql/lock.cc:355
#7  0x00005615a5475ebe in mysql_lock_tables (thd=0x7fb320001320, tables=0x7fb3200187f0, count=1, flags=0) at /home/travis/src/sql/lock.cc:304
#8  0x00005615a4fdab7d in lock_tables (thd=0x7fb320001320, tables=0x7fb320014300, count=1, flags=0) at /home/travis/src/sql/sql_base.cc:5172
#9  0x00005615a4fda209 in open_and_lock_tables (thd=0x7fb320001320, options=..., tables=0x7fb320014300, derived=true, flags=0, prelocking_strategy=0x7fb3740ebd20) at /home/travis/src/sql/sql_base.cc:4916
#10 0x00005615a4f9b2a9 in open_and_lock_tables (thd=0x7fb320001320, tables=0x7fb320014300, derived=true, flags=0) at /home/travis/src/sql/sql_base.h:489
#11 0x00005615a504f7bb in mysql_load (thd=0x7fb320001320, ex=0x7fb320014278, table_list=0x7fb320014300, fields_vars=..., set_fields=..., set_values=..., handle_duplicates=DUP_REPLACE, ignore=false, read_file_from_client=false) at /home/travis/src/sql/sql_load.cc:388
#12 0x00005615a5065333 in mysql_execute_command (thd=0x7fb320001320) at /home/travis/src/sql/sql_parse.cc:5126
#13 0x00005615a506e228 in mysql_parse (thd=0x7fb320001320, rawbuf=0x7fb320014148 "LOAD DATA INFILE 'load_view_D' REPLACE INTO TABLE view_D /* QNO 11158 CON_ID 15 */", length=82, parser_state=0x7fb3740ed5e0, is_com_multi=false, is_next_command=false) at /home/travis/src/sql/sql_parse.cc:8013
#14 0x00005615a505b91e in dispatch_command (command=COM_QUERY, thd=0x7fb320001320, packet=0x7fb32000b981 " LOAD DATA INFILE 'load_view_D' REPLACE INTO TABLE view_D /* QNO 11158 CON_ID 15 */ ", packet_length=84, is_com_multi=false, is_next_command=false) at /home/travis/src/sql/sql_parse.cc:1842
#15 0x00005615a505a36a in do_command (thd=0x7fb320001320) at /home/travis/src/sql/sql_parse.cc:1387
#16 0x00005615a51bfb11 in do_handle_one_connection (connect=0x5615a91fe400) at /home/travis/src/sql/sql_connect.cc:1402
#17 0x00005615a51bf89e in handle_one_connection (arg=0x5615a91fe400) at /home/travis/src/sql/sql_connect.cc:1308
#18 0x00007fb38a48e184 in start_thread (arg=0x7fb3740ee700) at pthread_create.c:312
#19 0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 32 (Thread 0x7fb374138700 (LWP 24813)):
#0  0x00007fb38998dc9d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00005615a5b5d69f in vio_io_wait (vio=0x5615a91fe190, event=VIO_IO_EVENT_READ, timeout=28800000) at /home/travis/src/vio/viosocket.c:962
#2  0x00005615a5b5bda1 in vio_socket_io_wait (vio=0x5615a91fe190, event=VIO_IO_EVENT_READ) at /home/travis/src/vio/viosocket.c:119
#3  0x00005615a5b5bf87 in vio_read (vio=0x5615a91fe190, buf=0x7fb3240a57b0 <incomplete sequence \355>, size=4) at /home/travis/src/vio/viosocket.c:196
#4  0x00005615a4f53fcc in my_real_read (net=0x7fb3240158d8, complen=0x7fb374137d60, header=1 '\001') at /home/travis/src/sql/net_serv.cc:956
#5  0x00005615a4f5483b in my_net_read_packet_reallen (net=0x7fb3240158d8, read_from_server=1 '\001', reallen=0x7fb374137dc8) at /home/travis/src/sql/net_serv.cc:1237
#6  0x00005615a4f547ef in my_net_read_packet (net=0x7fb3240158d8, read_from_server=1 '\001') at /home/travis/src/sql/net_serv.cc:1221
#7  0x00005615a5059e95 in do_command (thd=0x7fb3240155c0) at /home/travis/src/sql/sql_parse.cc:1267
#8  0x00005615a51bfb11 in do_handle_one_connection (connect=0x5615a91fe190) at /home/travis/src/sql/sql_connect.cc:1402
#9  0x00005615a51bf89e in handle_one_connection (arg=0x5615a91fe190) at /home/travis/src/sql/sql_connect.cc:1308
#10 0x00007fb38a48e184 in start_thread (arg=0x7fb374138700) at pthread_create.c:312
#11 0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 31 (Thread 0x7fb374182700 (LWP 24812)):
#0  0x00007fb38998dc9d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00005615a5b5d69f in vio_io_wait (vio=0x5615a86b9630, event=VIO_IO_EVENT_READ, timeout=28800000) at /home/travis/src/vio/viosocket.c:962
#2  0x00005615a5b5bda1 in vio_socket_io_wait (vio=0x5615a86b9630, event=VIO_IO_EVENT_READ) at /home/travis/src/vio/viosocket.c:119
#3  0x00005615a5b5bf87 in vio_read (vio=0x5615a86b9630, buf=0x5615a91f38e0 "\a", size=4) at /home/travis/src/vio/viosocket.c:196
#4  0x00005615a4f53fcc in my_real_read (net=0x5615a91ebed8, complen=0x7fb374181d60, header=1 '\001') at /home/travis/src/sql/net_serv.cc:956
#5  0x00005615a4f5483b in my_net_read_packet_reallen (net=0x5615a91ebed8, read_from_server=1 '\001', reallen=0x7fb374181dc8) at /home/travis/src/sql/net_serv.cc:1237
#6  0x00005615a4f547ef in my_net_read_packet (net=0x5615a91ebed8, read_from_server=1 '\001') at /home/travis/src/sql/net_serv.cc:1221
#7  0x00005615a5059e95 in do_command (thd=0x5615a91ebbc0) at /home/travis/src/sql/sql_parse.cc:1267
#8  0x00005615a51bfb11 in do_handle_one_connection (connect=0x5615a912c6f0) at /home/travis/src/sql/sql_connect.cc:1402
#9  0x00005615a51bf89e in handle_one_connection (arg=0x5615a912c6f0) at /home/travis/src/sql/sql_connect.cc:1308
#10 0x00007fb38a48e184 in start_thread (arg=0x7fb374182700) at pthread_create.c:312
#11 0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 30 (Thread 0x7fb34e7fc700 (LWP 24803)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005615a562c49f in os_event::wait (this=0x5615a87066a0) at /home/travis/src/storage/innobase/os/os0event.cc:163
#2  0x00005615a562bea5 in os_event::wait_low (this=0x5615a87066a0, reset_sig_count=1) at /home/travis/src/storage/innobase/os/os0event.cc:333
#3  0x00005615a562c257 in os_event_wait_low (event=0x5615a87066a0, reset_sig_count=0) at /home/travis/src/storage/innobase/os/os0event.cc:527
#4  0x00005615a580d518 in buf_dump_thread () at /home/travis/src/storage/innobase/buf/buf0dump.cc:828
#5  0x00007fb38a48e184 in start_thread (arg=0x7fb34e7fc700) at pthread_create.c:312
#6  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 29 (Thread 0x7fb34effd700 (LWP 24802)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005615a562c49f in os_event::wait (this=0x5615a87064a0) at /home/travis/src/storage/innobase/os/os0event.cc:163
#2  0x00005615a562bea5 in os_event::wait_low (this=0x5615a87064a0, reset_sig_count=150) at /home/travis/src/storage/innobase/os/os0event.cc:333
#3  0x00005615a562c257 in os_event_wait_low (event=0x5615a87064a0, reset_sig_count=0) at /home/travis/src/storage/innobase/os/os0event.cc:527
#4  0x00005615a5728482 in srv_resume_thread (slot=0x5615a65b8478 <srv_sys+440>, sig_count=0, wait=true, timeout_usec=0) at /home/travis/src/storage/innobase/srv/srv0srv.cc:906
#5  0x00005615a572c06f in srv_worker_thread (arg=0x0) at /home/travis/src/storage/innobase/srv/srv0srv.cc:2547
#6  0x00007fb38a48e184 in start_thread (arg=0x7fb34effd700) at pthread_create.c:312
#7  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 28 (Thread 0x7fb34f7fe700 (LWP 24801)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005615a562c49f in os_event::wait (this=0x5615a8706420) at /home/travis/src/storage/innobase/os/os0event.cc:163
#2  0x00005615a562bea5 in os_event::wait_low (this=0x5615a8706420, reset_sig_count=151) at /home/travis/src/storage/innobase/os/os0event.cc:333
#3  0x00005615a562c257 in os_event_wait_low (event=0x5615a8706420, reset_sig_count=0) at /home/travis/src/storage/innobase/os/os0event.cc:527
#4  0x00005615a5728482 in srv_resume_thread (slot=0x5615a65b8440 <srv_sys+384>, sig_count=0, wait=true, timeout_usec=0) at /home/travis/src/storage/innobase/srv/srv0srv.cc:906
#5  0x00005615a572c06f in srv_worker_thread (arg=0x0) at /home/travis/src/storage/innobase/srv/srv0srv.cc:2547
#6  0x00007fb38a48e184 in start_thread (arg=0x7fb34f7fe700) at pthread_create.c:312
#7  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 27 (Thread 0x7fb34ffff700 (LWP 24800)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005615a562c49f in os_event::wait (this=0x5615a8706520) at /home/travis/src/storage/innobase/os/os0event.cc:163
#2  0x00005615a562bea5 in os_event::wait_low (this=0x5615a8706520, reset_sig_count=141) at /home/travis/src/storage/innobase/os/os0event.cc:333
#3  0x00005615a562c257 in os_event_wait_low (event=0x5615a8706520, reset_sig_count=0) at /home/travis/src/storage/innobase/os/os0event.cc:527
#4  0x00005615a5728482 in srv_resume_thread (slot=0x5615a65b84b0 <srv_sys+496>, sig_count=0, wait=true, timeout_usec=0) at /home/travis/src/storage/innobase/srv/srv0srv.cc:906
#5  0x00005615a572c06f in srv_worker_thread (arg=0x0) at /home/travis/src/storage/innobase/srv/srv0srv.cc:2547
#6  0x00007fb38a48e184 in start_thread (arg=0x7fb34ffff700) at pthread_create.c:312
#7  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 26 (Thread 0x7fb35cbcc700 (LWP 24799)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005615a562c49f in os_event::wait (this=0x5615a87063a0) at /home/travis/src/storage/innobase/os/os0event.cc:163
#2  0x00005615a562bea5 in os_event::wait_low (this=0x5615a87063a0, reset_sig_count=126) at /home/travis/src/storage/innobase/os/os0event.cc:333
#3  0x00005615a562c257 in os_event_wait_low (event=0x5615a87063a0, reset_sig_count=126) at /home/travis/src/storage/innobase/os/os0event.cc:527
#4  0x00005615a5728482 in srv_resume_thread (slot=0x5615a65b8408 <srv_sys+328>, sig_count=126, wait=true, timeout_usec=0) at /home/travis/src/storage/innobase/srv/srv0srv.cc:906
#5  0x00005615a572c530 in srv_purge_coordinator_suspend (slot=0x5615a65b8408 <srv_sys+328>, rseg_history_len=6) at /home/travis/src/storage/innobase/srv/srv0srv.cc:2700
#6  0x00005615a572c8b0 in srv_purge_coordinator_thread (arg=0x0) at /home/travis/src/storage/innobase/srv/srv0srv.cc:2787
#7  0x00007fb38a48e184 in start_thread (arg=0x7fb35cbcc700) at pthread_create.c:312
#8  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 25 (Thread 0x7fb388062700 (LWP 24808)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005615a5afccfd in safe_cond_wait (cond=0x5615a677ad60 <COND_slave_background>, mp=0x5615a677e100 <LOCK_slave_background>, file=0x5615a5b9b960 "/home/travis/src/include/mysql/psi/mysql_thread.h", line=1178) at /home/travis/src/mysys/thr_mutex.c:492
#2  0x00005615a4f6e280 in inline_mysql_cond_wait (that=0x5615a677ad60 <COND_slave_background>, mutex=0x5615a677e100 <LOCK_slave_background>, src_file=0x5615a5b9c3ad "/home/travis/src/sql/slave.cc", src_line=506) at /home/travis/src/include/mysql/psi/mysql_thread.h:1178
#3  0x00005615a4f6f68b in handle_slave_background (arg=0x0) at /home/travis/src/sql/slave.cc:506
#4  0x00007fb38a48e184 in start_thread (arg=0x7fb388062700) at pthread_create.c:312
#5  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 24 (Thread 0x7fb35dbce700 (LWP 24797)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00005615a562bd3a in os_event::timed_wait (this=0x5615a9101710, abstime=0x7fb35dbcdc50) at /home/travis/src/storage/innobase/os/os0event.cc:283
#2  0x00005615a562c051 in os_event::wait_time_low (this=0x5615a9101710, time_in_usec=5000000, reset_sig_count=1) at /home/travis/src/storage/innobase/os/os0event.cc:405
#3  0x00005615a562c232 in os_event_wait_time_low (event=0x5615a9101710, time_in_usec=5000000, reset_sig_count=1) at /home/travis/src/storage/innobase/os/os0event.cc:510
#4  0x00005615a57906ed in ib_wqueue_timedwait (wq=0x5615a90fccb0, wait_in_usecs=5000000) at /home/travis/src/storage/innobase/ut/ut0wqueue.cc:163
#5  0x00005615a58d7cf1 in fts_optimize_thread (arg=0x5615a90fccb0) at /home/travis/src/storage/innobase/fts/fts0opt.cc:3035
#6  0x00007fb38a48e184 in start_thread (arg=0x7fb35dbce700) at pthread_create.c:312
#7  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 23 (Thread 0x7fb3880ac700 (LWP 24807)):
#0  0x00007fb38a4960c1 in do_sigwait (sig=0x7fb3880abe10, set=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/../../../../../sysdeps/unix/sysv/linux/sigwait.c:60
#1  __sigwait (set=0x7fb3880abe40, sig=0x7fb3880abe10) at ../nptl/sysdeps/unix/sysv/linux/../../../../../sysdeps/unix/sysv/linux/sigwait.c:97
#2  0x00005615a4f42c40 in signal_hand (arg=0x0) at /home/travis/src/sql/mysqld.cc:3550
#3  0x00007fb38a48e184 in start_thread (arg=0x7fb3880ac700) at pthread_create.c:312
#4  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 22 (Thread 0x7fb35fbd2700 (LWP 24796)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00005615a562bd3a in os_event::timed_wait (this=0x5615a90efd10, abstime=0x7fb35fbd1e60) at /home/travis/src/storage/innobase/os/os0event.cc:283
#2  0x00005615a562c051 in os_event::wait_time_low (this=0x5615a90efd10, time_in_usec=10000000, reset_sig_count=1) at /home/travis/src/storage/innobase/os/os0event.cc:405
#3  0x00005615a562c232 in os_event_wait_time_low (event=0x5615a90efd10, time_in_usec=10000000, reset_sig_count=0) at /home/travis/src/storage/innobase/os/os0event.cc:510
#4  0x00005615a5878d03 in dict_stats_thread () at /home/travis/src/storage/innobase/dict/dict0stats_bg.cc:451
#5  0x00007fb38a48e184 in start_thread (arg=0x7fb35fbd2700) at pthread_create.c:312
#6  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 21 (Thread 0x7fb34cff9700 (LWP 24806)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005615a5afccfd in safe_cond_wait (cond=0x7fb34cff8dc0, mp=0x7fb34cff8e00, file=0x5615a5d67880 "/home/travis/src/include/mysql/psi/mysql_thread.h", line=1178) at /home/travis/src/mysys/thr_mutex.c:492
#2  0x00005615a554ff57 in inline_mysql_cond_wait (that=0x7fb34cff8dc0, mutex=0x7fb34cff8e00, src_file=0x5615a5d68df8 "/home/travis/src/storage/innobase/handler/ha_innodb.cc", src_line=315) at /home/travis/src/include/mysql/psi/mysql_thread.h:1178
#3  0x00005615a55549ed in thd_destructor_proxy () at /home/travis/src/storage/innobase/handler/ha_innodb.cc:315
#4  0x00007fb38a48e184 in start_thread (arg=0x7fb34cff9700) at pthread_create.c:312
#5  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 20 (Thread 0x7fb35e3cf700 (LWP 24795)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00005615a562bd3a in os_event::timed_wait (this=0x5615a8706620, abstime=0x7fb35e3cee20) at /home/travis/src/storage/innobase/os/os0event.cc:283
#2  0x00005615a562c051 in os_event::wait_time_low (this=0x5615a8706620, time_in_usec=5000000, reset_sig_count=1) at /home/travis/src/storage/innobase/os/os0event.cc:405
#3  0x00005615a562c232 in os_event_wait_time_low (event=0x5615a8706620, time_in_usec=5000000, reset_sig_count=1) at /home/travis/src/storage/innobase/os/os0event.cc:510
#4  0x00005615a572a193 in srv_monitor_thread () at /home/travis/src/storage/innobase/srv/srv0srv.cc:1705
#5  0x00007fb38a48e184 in start_thread (arg=0x7fb35e3cf700) at pthread_create.c:312
#6  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 19 (Thread 0x7fb34d7fa700 (LWP 24805)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005615a562c49f in os_event::wait (this=0x5615a87067a0) at /home/travis/src/storage/innobase/os/os0event.cc:163
#2  0x00005615a562bea5 in os_event::wait_low (this=0x5615a87067a0, reset_sig_count=1) at /home/travis/src/storage/innobase/os/os0event.cc:333
#3  0x00005615a562c257 in os_event_wait_low (event=0x5615a87067a0, reset_sig_count=0) at /home/travis/src/storage/innobase/os/os0event.cc:527
#4  0x00005615a57f5951 in buf_resize_thread () at /home/travis/src/storage/innobase/buf/buf0buf.cc:3125
#5  0x00007fb38a48e184 in start_thread (arg=0x7fb34d7fa700) at pthread_create.c:312
#6  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 18 (Thread 0x7fb35ebd0700 (LWP 24794)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00005615a562bd3a in os_event::timed_wait (this=0x5615a87065a0, abstime=0x7fb35ebcfca0) at /home/travis/src/storage/innobase/os/os0event.cc:283
#2  0x00005615a562c051 in os_event::wait_time_low (this=0x5615a87065a0, time_in_usec=1000000, reset_sig_count=1) at /home/travis/src/storage/innobase/os/os0event.cc:405
#3  0x00005615a562c232 in os_event_wait_time_low (event=0x5615a87065a0, time_in_usec=1000000, reset_sig_count=1) at /home/travis/src/storage/innobase/os/os0event.cc:510
#4  0x00005615a572a6b5 in srv_error_monitor_thread () at /home/travis/src/storage/innobase/srv/srv0srv.cc:1869
#5  0x00007fb38a48e184 in start_thread (arg=0x7fb35ebd0700) at pthread_create.c:312
#6  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 17 (Thread 0x7fb34dffb700 (LWP 24804)):
#0  0x00007fb38a495b9d in nanosleep () at ../sysdeps/unix/syscall-template.S:81
#1  0x00005615a562c79d in os_thread_sleep (tm=1000000) at /home/travis/src/storage/innobase/os/os0thread.cc:230
#2  0x00005615a57e7924 in btr_defragment_thread () at /home/travis/src/storage/innobase/btr/btr0defragment.cc:756
#3  0x00007fb38a48e184 in start_thread (arg=0x7fb34dffb700) at pthread_create.c:312
#4  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 16 (Thread 0x7fb3605d8700 (LWP 24791)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00005615a562bd3a in os_event::timed_wait (this=0x5615a8706720, abstime=0x7fb3605d7bf0) at /home/travis/src/storage/innobase/os/os0event.cc:283
#2  0x00005615a562c051 in os_event::wait_time_low (this=0x5615a8706720, time_in_usec=990000, reset_sig_count=2) at /home/travis/src/storage/innobase/os/os0event.cc:405
#3  0x00005615a562c232 in os_event_wait_time_low (event=0x5615a8706720, time_in_usec=990000, reset_sig_count=2) at /home/travis/src/storage/innobase/os/os0event.cc:510
#4  0x00005615a58177d0 in pc_sleep_if_needed (next_loop_time=1522845794721, sig_count=2, cur_time=1522845793731) at /home/travis/src/storage/innobase/buf/buf0flu.cc:2675
#5  0x00005615a5818707 in buf_flush_page_cleaner_coordinator () at /home/travis/src/storage/innobase/buf/buf0flu.cc:3141
#6  0x00007fb38a48e184 in start_thread (arg=0x7fb3605d8700) at pthread_create.c:312
#7  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 15 (Thread 0x7fb35d3cd700 (LWP 24798)):
#0  0x00007fb38a495b9d in nanosleep () at ../sysdeps/unix/syscall-template.S:81
#1  0x00005615a562c79d in os_thread_sleep (tm=1000000) at /home/travis/src/storage/innobase/os/os0thread.cc:230
#2  0x00005615a572ba30 in srv_master_sleep () at /home/travis/src/storage/innobase/srv/srv0srv.cc:2358
#3  0x00005615a572bb72 in srv_master_thread (arg=0x0) at /home/travis/src/storage/innobase/srv/srv0srv.cc:2403
#4  0x00007fb38a48e184 in start_thread (arg=0x7fb35d3cd700) at pthread_create.c:312
#5  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 14 (Thread 0x7fb360dd9700 (LWP 24790)):
#0  0x00007fb38b33558a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00005615a561ed24 in LinuxAIOHandler::collect (this=0x7fb360dd8c00) at /home/travis/src/storage/innobase/os/os0file.cc:1913
#2  0x00005615a561f24d in LinuxAIOHandler::poll (this=0x7fb360dd8c00, m1=0x7fb360dd8ca8, m2=0x7fb360dd8cb0, request=0x7fb360dd8ce0) at /home/travis/src/storage/innobase/os/os0file.cc:2058
#3  0x00005615a561f3b0 in os_aio_linux_handler (global_segment=9, m1=0x7fb360dd8ca8, m2=0x7fb360dd8cb0, request=0x7fb360dd8ce0) at /home/travis/src/storage/innobase/os/os0file.cc:2112
#4  0x00005615a5623f64 in os_aio_handler (segment=9, m1=0x7fb360dd8ca8, m2=0x7fb360dd8cb0, request=0x7fb360dd8ce0) at /home/travis/src/storage/innobase/os/os0file.cc:5638
#5  0x00005615a588fb0b in fil_aio_wait (segment=9) at /home/travis/src/storage/innobase/fil/fil0fil.cc:4678
#6  0x00005615a572eb04 in io_handler_thread (arg=0x5615a67f1268 <n+72>) at /home/travis/src/storage/innobase/srv/srv0start.cc:339
#7  0x00007fb38a48e184 in start_thread (arg=0x7fb360dd9700) at pthread_create.c:312
#8  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 13 (Thread 0x7fb35f3d1700 (LWP 24793)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00005615a562bd3a in os_event::timed_wait (this=0x5615a8fd8a00, abstime=0x7fb35f3d0e40) at /home/travis/src/storage/innobase/os/os0event.cc:283
#2  0x00005615a562c051 in os_event::wait_time_low (this=0x5615a8fd8a00, time_in_usec=1000000, reset_sig_count=1) at /home/travis/src/storage/innobase/os/os0event.cc:405
#3  0x00005615a562c232 in os_event_wait_time_low (event=0x5615a8fd8a00, time_in_usec=1000000, reset_sig_count=1) at /home/travis/src/storage/innobase/os/os0event.cc:510
#4  0x00005615a55f8550 in lock_wait_timeout_thread () at /home/travis/src/storage/innobase/lock/lock0wait.cc:547
#5  0x00007fb38a48e184 in start_thread (arg=0x7fb35f3d1700) at pthread_create.c:312
#6  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 12 (Thread 0x7fb3615da700 (LWP 24789)):
#0  0x00007fb38b33558a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00005615a561ed24 in LinuxAIOHandler::collect (this=0x7fb3615d9c00) at /home/travis/src/storage/innobase/os/os0file.cc:1913
#2  0x00005615a561f24d in LinuxAIOHandler::poll (this=0x7fb3615d9c00, m1=0x7fb3615d9ca8, m2=0x7fb3615d9cb0, request=0x7fb3615d9ce0) at /home/travis/src/storage/innobase/os/os0file.cc:2058
#3  0x00005615a561f3b0 in os_aio_linux_handler (global_segment=8, m1=0x7fb3615d9ca8, m2=0x7fb3615d9cb0, request=0x7fb3615d9ce0) at /home/travis/src/storage/innobase/os/os0file.cc:2112
#4  0x00005615a5623f64 in os_aio_handler (segment=8, m1=0x7fb3615d9ca8, m2=0x7fb3615d9cb0, request=0x7fb3615d9ce0) at /home/travis/src/storage/innobase/os/os0file.cc:5638
#5  0x00005615a588fb0b in fil_aio_wait (segment=8) at /home/travis/src/storage/innobase/fil/fil0fil.cc:4678
#6  0x00005615a572eb04 in io_handler_thread (arg=0x5615a67f1260 <n+64>) at /home/travis/src/storage/innobase/srv/srv0start.cc:339
#7  0x00007fb38a48e184 in start_thread (arg=0x7fb3615da700) at pthread_create.c:312
#8  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 11 (Thread 0x7fb361ddb700 (LWP 24788)):
#0  0x00007fb38b33558a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00005615a561ed24 in LinuxAIOHandler::collect (this=0x7fb361ddac00) at /home/travis/src/storage/innobase/os/os0file.cc:1913
#2  0x00005615a561f24d in LinuxAIOHandler::poll (this=0x7fb361ddac00, m1=0x7fb361ddaca8, m2=0x7fb361ddacb0, request=0x7fb361ddace0) at /home/travis/src/storage/innobase/os/os0file.cc:2058
#3  0x00005615a561f3b0 in os_aio_linux_handler (global_segment=7, m1=0x7fb361ddaca8, m2=0x7fb361ddacb0, request=0x7fb361ddace0) at /home/travis/src/storage/innobase/os/os0file.cc:2112
#4  0x00005615a5623f64 in os_aio_handler (segment=7, m1=0x7fb361ddaca8, m2=0x7fb361ddacb0, request=0x7fb361ddace0) at /home/travis/src/storage/innobase/os/os0file.cc:5638
#5  0x00005615a588fb0b in fil_aio_wait (segment=7) at /home/travis/src/storage/innobase/fil/fil0fil.cc:4678
#6  0x00005615a572eb04 in io_handler_thread (arg=0x5615a67f1258 <n+56>) at /home/travis/src/storage/innobase/srv/srv0start.cc:339
#7  0x00007fb38a48e184 in start_thread (arg=0x7fb361ddb700) at pthread_create.c:312
#8  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 10 (Thread 0x7fb3625dc700 (LWP 24787)):
#0  0x00007fb38b33558a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00005615a561ed24 in LinuxAIOHandler::collect (this=0x7fb3625dbc00) at /home/travis/src/storage/innobase/os/os0file.cc:1913
#2  0x00005615a561f24d in LinuxAIOHandler::poll (this=0x7fb3625dbc00, m1=0x7fb3625dbca8, m2=0x7fb3625dbcb0, request=0x7fb3625dbce0) at /home/travis/src/storage/innobase/os/os0file.cc:2058
#3  0x00005615a561f3b0 in os_aio_linux_handler (global_segment=6, m1=0x7fb3625dbca8, m2=0x7fb3625dbcb0, request=0x7fb3625dbce0) at /home/travis/src/storage/innobase/os/os0file.cc:2112
#4  0x00005615a5623f64 in os_aio_handler (segment=6, m1=0x7fb3625dbca8, m2=0x7fb3625dbcb0, request=0x7fb3625dbce0) at /home/travis/src/storage/innobase/os/os0file.cc:5638
#5  0x00005615a588fb0b in fil_aio_wait (segment=6) at /home/travis/src/storage/innobase/fil/fil0fil.cc:4678
#6  0x00005615a572eb04 in io_handler_thread (arg=0x5615a67f1250 <n+48>) at /home/travis/src/storage/innobase/srv/srv0start.cc:339
#7  0x00007fb38a48e184 in start_thread (arg=0x7fb3625dc700) at pthread_create.c:312
#8  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 9 (Thread 0x7fb3645e0700 (LWP 24783)):
#0  0x00007fb38b33558a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00005615a561ed24 in LinuxAIOHandler::collect (this=0x7fb3645dfc00) at /home/travis/src/storage/innobase/os/os0file.cc:1913
#2  0x00005615a561f24d in LinuxAIOHandler::poll (this=0x7fb3645dfc00, m1=0x7fb3645dfca8, m2=0x7fb3645dfcb0, request=0x7fb3645dfce0) at /home/travis/src/storage/innobase/os/os0file.cc:2058
#3  0x00005615a561f3b0 in os_aio_linux_handler (global_segment=2, m1=0x7fb3645dfca8, m2=0x7fb3645dfcb0, request=0x7fb3645dfce0) at /home/travis/src/storage/innobase/os/os0file.cc:2112
#4  0x00005615a5623f64 in os_aio_handler (segment=2, m1=0x7fb3645dfca8, m2=0x7fb3645dfcb0, request=0x7fb3645dfce0) at /home/travis/src/storage/innobase/os/os0file.cc:5638
#5  0x00005615a588fb0b in fil_aio_wait (segment=2) at /home/travis/src/storage/innobase/fil/fil0fil.cc:4678
#6  0x00005615a572eb04 in io_handler_thread (arg=0x5615a67f1230 <n+16>) at /home/travis/src/storage/innobase/srv/srv0start.cc:339
#7  0x00007fb38a48e184 in start_thread (arg=0x7fb3645e0700) at pthread_create.c:312
#8  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 8 (Thread 0x7fb362ddd700 (LWP 24786)):
#0  0x00007fb38b33558a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00005615a561ed24 in LinuxAIOHandler::collect (this=0x7fb362ddcc00) at /home/travis/src/storage/innobase/os/os0file.cc:1913
#2  0x00005615a561f24d in LinuxAIOHandler::poll (this=0x7fb362ddcc00, m1=0x7fb362ddcca8, m2=0x7fb362ddccb0, request=0x7fb362ddcce0) at /home/travis/src/storage/innobase/os/os0file.cc:2058
#3  0x00005615a561f3b0 in os_aio_linux_handler (global_segment=5, m1=0x7fb362ddcca8, m2=0x7fb362ddccb0, request=0x7fb362ddcce0) at /home/travis/src/storage/innobase/os/os0file.cc:2112
#4  0x00005615a5623f64 in os_aio_handler (segment=5, m1=0x7fb362ddcca8, m2=0x7fb362ddccb0, request=0x7fb362ddcce0) at /home/travis/src/storage/innobase/os/os0file.cc:5638
#5  0x00005615a588fb0b in fil_aio_wait (segment=5) at /home/travis/src/storage/innobase/fil/fil0fil.cc:4678
#6  0x00005615a572eb04 in io_handler_thread (arg=0x5615a67f1248 <n+40>) at /home/travis/src/storage/innobase/srv/srv0start.cc:339
#7  0x00007fb38a48e184 in start_thread (arg=0x7fb362ddd700) at pthread_create.c:312
#8  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 7 (Thread 0x7fb364de1700 (LWP 24782)):
#0  0x00007fb38b33558a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00005615a561ed24 in LinuxAIOHandler::collect (this=0x7fb364de0c00) at /home/travis/src/storage/innobase/os/os0file.cc:1913
#2  0x00005615a561f24d in LinuxAIOHandler::poll (this=0x7fb364de0c00, m1=0x7fb364de0ca8, m2=0x7fb364de0cb0, request=0x7fb364de0ce0) at /home/travis/src/storage/innobase/os/os0file.cc:2058
#3  0x00005615a561f3b0 in os_aio_linux_handler (global_segment=1, m1=0x7fb364de0ca8, m2=0x7fb364de0cb0, request=0x7fb364de0ce0) at /home/travis/src/storage/innobase/os/os0file.cc:2112
#4  0x00005615a5623f64 in os_aio_handler (segment=1, m1=0x7fb364de0ca8, m2=0x7fb364de0cb0, request=0x7fb364de0ce0) at /home/travis/src/storage/innobase/os/os0file.cc:5638
#5  0x00005615a588fb0b in fil_aio_wait (segment=1) at /home/travis/src/storage/innobase/fil/fil0fil.cc:4678
#6  0x00005615a572eb04 in io_handler_thread (arg=0x5615a67f1228 <n+8>) at /home/travis/src/storage/innobase/srv/srv0start.cc:339
#7  0x00007fb38a48e184 in start_thread (arg=0x7fb364de1700) at pthread_create.c:312
#8  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7fb3635de700 (LWP 24785)):
#0  0x00007fb38b33558a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00005615a561ed24 in LinuxAIOHandler::collect (this=0x7fb3635ddc00) at /home/travis/src/storage/innobase/os/os0file.cc:1913
#2  0x00005615a561f24d in LinuxAIOHandler::poll (this=0x7fb3635ddc00, m1=0x7fb3635ddca8, m2=0x7fb3635ddcb0, request=0x7fb3635ddce0) at /home/travis/src/storage/innobase/os/os0file.cc:2058
#3  0x00005615a561f3b0 in os_aio_linux_handler (global_segment=4, m1=0x7fb3635ddca8, m2=0x7fb3635ddcb0, request=0x7fb3635ddce0) at /home/travis/src/storage/innobase/os/os0file.cc:2112
#4  0x00005615a5623f64 in os_aio_handler (segment=4, m1=0x7fb3635ddca8, m2=0x7fb3635ddcb0, request=0x7fb3635ddce0) at /home/travis/src/storage/innobase/os/os0file.cc:5638
#5  0x00005615a588fb0b in fil_aio_wait (segment=4) at /home/travis/src/storage/innobase/fil/fil0fil.cc:4678
#6  0x00005615a572eb04 in io_handler_thread (arg=0x5615a67f1240 <n+32>) at /home/travis/src/storage/innobase/srv/srv0start.cc:339
#7  0x00007fb38a48e184 in start_thread (arg=0x7fb3635de700) at pthread_create.c:312
#8  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7fb3888ad700 (LWP 24780)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00005615a5afcfff in safe_cond_timedwait (cond=0x5615a70024e0 <COND_checkpoint>, mp=0x5615a7002420 <LOCK_checkpoint>, abstime=0x7fb3888ace00, file=0x5615a5ec8590 "/home/travis/src/include/mysql/psi/mysql_thread.h", line=1215) at /home/travis/src/mysys/thr_mutex.c:546
#2  0x00005615a596dc4f in inline_mysql_cond_timedwait (that=0x5615a70024e0 <COND_checkpoint>, mutex=0x5615a7002420 <LOCK_checkpoint>, abstime=0x7fb3888ace00, src_file=0x5615a5ec85c8 "/home/travis/src/storage/maria/ma_servicethread.c", src_line=116) at /home/travis/src/include/mysql/psi/mysql_thread.h:1215
#3  0x00005615a596e112 in my_service_thread_sleep (control=0x5615a65bc800 <checkpoint_control>, sleep_time=30000000000) at /home/travis/src/storage/maria/ma_servicethread.c:115
#4  0x00005615a59629b7 in ma_checkpoint_background (arg=0x1e) at /home/travis/src/storage/maria/ma_checkpoint.c:707
#5  0x00007fb38a48e184 in start_thread (arg=0x7fb3888ad700) at pthread_create.c:312
#6  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7fb363ddf700 (LWP 24784)):
#0  0x00007fb38b33558a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00005615a561ed24 in LinuxAIOHandler::collect (this=0x7fb363ddec00) at /home/travis/src/storage/innobase/os/os0file.cc:1913
#2  0x00005615a561f24d in LinuxAIOHandler::poll (this=0x7fb363ddec00, m1=0x7fb363ddeca8, m2=0x7fb363ddecb0, request=0x7fb363ddece0) at /home/travis/src/storage/innobase/os/os0file.cc:2058
#3  0x00005615a561f3b0 in os_aio_linux_handler (global_segment=3, m1=0x7fb363ddeca8, m2=0x7fb363ddecb0, request=0x7fb363ddece0) at /home/travis/src/storage/innobase/os/os0file.cc:2112
#4  0x00005615a5623f64 in os_aio_handler (segment=3, m1=0x7fb363ddeca8, m2=0x7fb363ddecb0, request=0x7fb363ddece0) at /home/travis/src/storage/innobase/os/os0file.cc:5638
#5  0x00005615a588fb0b in fil_aio_wait (segment=3) at /home/travis/src/storage/innobase/fil/fil0fil.cc:4678
#6  0x00005615a572eb04 in io_handler_thread (arg=0x5615a67f1238 <n+24>) at /home/travis/src/storage/innobase/srv/srv0start.cc:339
#7  0x00007fb38a48e184 in start_thread (arg=0x7fb363ddf700) at pthread_create.c:312
#8  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7fb38989c700 (LWP 24779)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00005615a5afcfff in safe_cond_timedwait (cond=0x5615a7013c00 <COND_timer>, mp=0x5615a7013b40 <LOCK_timer>, abstime=0x7fb38989bec0, file=0x5615a5f06cd0 "/home/travis/src/include/mysql/psi/mysql_thread.h", line=1215) at /home/travis/src/mysys/thr_mutex.c:546
#2  0x00005615a5afdfe4 in inline_mysql_cond_timedwait (that=0x5615a7013c00 <COND_timer>, mutex=0x5615a7013b40 <LOCK_timer>, abstime=0x7fb38989bec0, src_file=0x5615a5f06d08 "/home/travis/src/mysys/thr_timer.c", src_line=292) at /home/travis/src/include/mysql/psi/mysql_thread.h:1215
#3  0x00005615a5afeae6 in timer_handler (arg=0x0) at /home/travis/src/mysys/thr_timer.c:292
#4  0x00007fb38a48e184 in start_thread (arg=0x7fb38989c700) at pthread_create.c:312
#5  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7fb3655e2700 (LWP 24781)):
#0  0x00007fb38b33558a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x00005615a561ed24 in LinuxAIOHandler::collect (this=0x7fb3655e1c00) at /home/travis/src/storage/innobase/os/os0file.cc:1913
#2  0x00005615a561f24d in LinuxAIOHandler::poll (this=0x7fb3655e1c00, m1=0x7fb3655e1ca8, m2=0x7fb3655e1cb0, request=0x7fb3655e1ce0) at /home/travis/src/storage/innobase/os/os0file.cc:2058
#3  0x00005615a561f3b0 in os_aio_linux_handler (global_segment=0, m1=0x7fb3655e1ca8, m2=0x7fb3655e1cb0, request=0x7fb3655e1ce0) at /home/travis/src/storage/innobase/os/os0file.cc:2112
#4  0x00005615a5623f64 in os_aio_handler (segment=0, m1=0x7fb3655e1ca8, m2=0x7fb3655e1cb0, request=0x7fb3655e1ce0) at /home/travis/src/storage/innobase/os/os0file.cc:5638
#5  0x00005615a588fb0b in fil_aio_wait (segment=0) at /home/travis/src/storage/innobase/fil/fil0fil.cc:4678
#6  0x00005615a572eb04 in io_handler_thread (arg=0x5615a67f1220 <n>) at /home/travis/src/storage/innobase/srv/srv0start.cc:339
#7  0x00007fb38a48e184 in start_thread (arg=0x7fb3655e2700) at pthread_create.c:312
#8  0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7fb3657ea700 (LWP 24825)):
#0  0x00007fb38a493611 in __pthread_kill (threadid=<optimized out>, signo=6) at ../nptl/sysdeps/unix/sysv/linux/pthread_kill.c:61
#1  0x00005615a5af773a in my_write_core (sig=6) at /home/travis/src/mysys/stacktrace.c:481
#2  0x00005615a534caf5 in handle_fatal_signal (sig=6) at /home/travis/src/sql/signal_handler.cc:305
#3  <signal handler called>
#4  0x00007fb3898d3c37 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#5  0x00007fb3898d7028 in __GI_abort () at abort.c:89
#6  0x00007fb3898ccbf6 in __assert_fail_base (fmt=0x7fb389a21058 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x5615a5d17062 "item->null_value", file=file@entry=0x5615a5d16cc0 "/home/travis/src/sql/filesort.cc", line=line@entry=1086, function=function@entry=0x5615a5d178c0 <Type_handler_temporal_result::make_sort_key(unsigned char*, Item*, SORT_FIELD_ATTR const*, Sort_param*) const::__PRETTY_FUNCTION__> "virtual void Type_handler_temporal_result::make_sort_key(uchar*, Item*, const SORT_FIELD_ATTR*, Sort_param*) const") at assert.c:92
#7  0x00007fb3898ccca2 in __GI___assert_fail (assertion=0x5615a5d17062 "item->null_value", file=0x5615a5d16cc0 "/home/travis/src/sql/filesort.cc", line=1086, function=0x5615a5d178c0 <Type_handler_temporal_result::make_sort_key(unsigned char*, Item*, SORT_FIELD_ATTR const*, Sort_param*) const::__PRETTY_FUNCTION__> "virtual void Type_handler_temporal_result::make_sort_key(uchar*, Item*, const SORT_FIELD_ATTR*, Sort_param*) const") at assert.c:101
#8  0x00005615a53490f0 in Type_handler_temporal_result::make_sort_key (this=0x5615a67a7c88 <type_handler_newdate>, to=0x7fb3341860c8 '\245' <repeats 200 times>..., item=0x7fb3340182a8, sort_field=0x7fb3340196c8, param=0x7fb3657e74a0) at /home/travis/src/sql/filesort.cc:1086
#9  0x00005615a53494e5 in make_sortkey (param=0x7fb3657e74a0, to=0x7fb3341860c8 '\245' <repeats 200 times>..., ref_pos=0x7fb3242a9618 "") at /home/travis/src/sql/filesort.cc:1190
#10 0x00005615a5348686 in find_all_keys (thd=0x7fb334000d90, param=0x7fb3657e74a0, select=0x7fb334018788, fs_info=0x7fb33412c990, buffpek_pointers=0x7fb3657e76a0, tempfile=0x7fb3657e7530, pq=0x0, found_rows=0x7fb33412cb70) at /home/travis/src/sql/filesort.cc:863
#11 0x00005615a5346899 in filesort (thd=0x7fb334000d90, table=0x7fb324080110, filesort=0x7fb334018e40, tracker=0x7fb334019640, join=0x7fb334015670, first_table_bit=1) at /home/travis/src/sql/filesort.cc:278
#12 0x00005615a50dc1a0 in create_sort_index (thd=0x7fb334000d90, join=0x7fb334015670, tab=0x7fb334017b28, fsort=0x7fb334018e40) at /home/travis/src/sql/sql_select.cc:22365
#13 0x00005615a50d6abe in st_join_table::sort_table (this=0x7fb334017b28) at /home/travis/src/sql/sql_select.cc:20200
#14 0x00005615a50d66c3 in join_init_read_record (tab=0x7fb334017b28) at /home/travis/src/sql/sql_select.cc:20141
#15 0x00005615a50d4651 in sub_select (join=0x7fb334015670, join_tab=0x7fb334017b28, end_of_records=false) at /home/travis/src/sql/sql_select.cc:19235
#16 0x00005615a50d3c1f in do_select (join=0x7fb334015670, procedure=0x0) at /home/travis/src/sql/sql_select.cc:18778
#17 0x00005615a50acd3a in JOIN::exec_inner (this=0x7fb334015670) at /home/travis/src/sql/sql_select.cc:3989
#18 0x00005615a50ac1da in JOIN::exec (this=0x7fb334015670) at /home/travis/src/sql/sql_select.cc:3783
#19 0x00005615a50ad44e in mysql_select (thd=0x7fb334000d90, tables=0x7fb3340143d0, wild_num=0, fields=..., conds=0x7fb334014c88, og_num=1, order=0x0, group=0x7fb334015528, having=0x0, proc_param=0x0, select_options=551912999680, result=0x7fb334015650, unit=0x7fb334004bd8, select_lex=0x7fb334005350) at /home/travis/src/sql/sql_select.cc:4188
#20 0x00005615a509f6e7 in handle_select (thd=0x7fb334000d90, lex=0x7fb334004b10, result=0x7fb334015650, setup_tables_done_option=0) at /home/travis/src/sql/sql_select.cc:382
#21 0x00005615a506a854 in execute_sqlcom_select (thd=0x7fb334000d90, all_tables=0x7fb3340143d0) at /home/travis/src/sql/sql_parse.cc:6556
#22 0x00005615a5060ec0 in mysql_execute_command (thd=0x7fb334000d90) at /home/travis/src/sql/sql_parse.cc:3770
#23 0x00005615a506e228 in mysql_parse (thd=0x7fb334000d90, rawbuf=0x7fb334013af8 "SELECT AVG( CONNECTION_ID() ) AS field1, COERCIBILITY( `col_date_nokey` ) AS field2 FROM `D` WHERE CAST( ( RAND( `col_date_nokey` ) ) AS CHAR ) GROUP BY NULLIF( ( CAST( 'bvzzjcgzrdjcwsclyrzplecritegur"..., length=317, parser_state=0x7fb3657e95e0, is_com_multi=false, is_next_command=false) at /home/travis/src/sql/sql_parse.cc:8013
#24 0x00005615a505b91e in dispatch_command (command=COM_QUERY, thd=0x7fb334000d90, packet=0x7fb33400b331 "", packet_length=319, is_com_multi=false, is_next_command=false) at /home/travis/src/sql/sql_parse.cc:1842
#25 0x00005615a505a36a in do_command (thd=0x7fb334000d90) at /home/travis/src/sql/sql_parse.cc:1387
#26 0x00005615a51bfb11 in do_handle_one_connection (connect=0x5615a912c6f0) at /home/travis/src/sql/sql_connect.cc:1402
#27 0x00005615a51bf89e in handle_one_connection (arg=0x5615a912c6f0) at /home/travis/src/sql/sql_connect.cc:1308
#28 0x00007fb38a48e184 in start_thread (arg=0x7fb3657ea700) at pthread_create.c:312
#29 0x00007fb38999b03d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111