#################### /home/vsts/logs/vardir/data/core ####################
/home/vsts/server/bin/mysqld
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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/vsts/server/bin/mysqld --no-defaults --basedir=/home/vsts/server --lc-mes'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  __pthread_kill (threadid=<optimized out>, signo=11) at ../sysdeps/unix/sysv/linux/pthread_kill.c:62
[Current thread is 1 (Thread 0x7ff8cc152b00 (LWP 8668))]

Thread 33 (Thread 0x7ff8cc074b00 (LWP 8675)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00005644c607790a in safe_cond_timedwait (cond=0x5644c86ff168, mp=0x5644c86ff0b8, abstime=0x7ff8cc071ec0, file=0x5644c61a00c0 "/home/vsts/src/include/mysql/psi/mysql_thread.h", line=1202) at /home/vsts/src/mysys/thr_mutex.c:547
#2  0x00005644c590b8f0 in inline_mysql_cond_timedwait (that=0x5644c86ff168, mutex=0x5644c86ff0b8, abstime=0x7ff8cc071ec0, src_file=0x5644c61a03fa "/home/vsts/src/sql/mdl.cc", src_line=1088) at /home/vsts/src/include/mysql/psi/mysql_thread.h:1202
#3  0x00005644c590cc43 in MDL_wait::timed_wait (this=0x5644c86ff0b8, owner=0x5644c86ff070, abs_timeout=0x7ff8cc071ec0, set_status_on_timeout=false, wait_state_name=0x5644c6935d70 <MDL_key::m_namespace_to_wait_state_name+48>) at /home/vsts/src/sql/mdl.cc:1088
#4  0x00005644c590e780 in MDL_context::acquire_lock (this=0x5644c86ff0b8, mdl_request=0x7ff87c0096e8, lock_wait_timeout=10) at /home/vsts/src/sql/mdl.cc:2125
#5  0x00005644c5762092 in open_table_get_mdl_lock (thd=0x5644c86fefc0, ot_ctx=0x7ff8cc072580, mdl_request=0x7ff87c0096e8, flags=0, mdl_ticket=0x7ff8cc0721b0) at /home/vsts/src/sql/sql_base.cc:2115
#6  0x00005644c576298d in open_table (thd=0x5644c86fefc0, table_list=0x7ff87c0092c0, ot_ctx=0x7ff8cc072580) at /home/vsts/src/sql/sql_base.cc:2406
#7  0x00005644c5765947 in open_and_process_table (thd=0x5644c86fefc0, lex=0x5644c8702a30, tables=0x7ff87c0092c0, counter=0x7ff8cc072690, flags=0, prelocking_strategy=0x7ff8cc072600, has_prelocking_list=false, ot_ctx=0x7ff8cc072580) at /home/vsts/src/sql/sql_base.cc:4124
#8  0x00005644c5766a40 in open_tables (thd=0x5644c86fefc0, options=..., start=0x7ff8cc072670, counter=0x7ff8cc072690, flags=0, prelocking_strategy=0x7ff8cc072600) at /home/vsts/src/sql/sql_base.cc:4639
#9  0x00005644c57a7b12 in open_tables (thd=0x5644c86fefc0, tables=0x7ff8cc072670, counter=0x7ff8cc072690, flags=0) at /home/vsts/src/sql/sql_base.h:513
#10 0x00005644c58a91c4 in mysql_update (thd=0x5644c86fefc0, table_list=0x7ff87c0057e0, fields=..., values=..., conds=0x7ff87c006160, order_num=5, order=0x7ff87c0063f0, limit=5, handle_duplicates=DUP_ERROR, ignore=false, found_return=0x7ff8cc072d50, updated_return=0x7ff8cc072de0) at /home/vsts/src/sql/sql_update.cc:285
#11 0x00005644c57ce748 in mysql_execute_command (thd=0x5644c86fefc0) at /home/vsts/src/sql/sql_parse.cc:3790
#12 0x00005644c57d9f13 in mysql_parse (thd=0x5644c86fefc0, rawbuf=0x7ff87c0054c8 "UPDATE LOW_PRIORITY `view_table0_aria_key_pk_parts_2_int_autoinc` AS X SET `col_int` = 59 WHERE X.`pk` < 't' ORDER BY `col_char_12`,`col_char_12_key`,`col_int`,`col_int_key`,`pk` LIMIT 5 /* QNO 276 CO"..., length=210, parser_state=0x7ff8cc073670) at /home/vsts/src/sql/sql_parse.cc:7468
#13 0x00005644c57c8437 in dispatch_command (command=COM_QUERY, thd=0x5644c86fefc0, packet=0x5644c87064f1 "UPDATE LOW_PRIORITY `view_table0_aria_key_pk_parts_2_int_autoinc` AS X SET `col_int` = 59 WHERE X.`pk` < 't' ORDER BY `col_char_12`,`col_char_12_key`,`col_int`,`col_int_key`,`pk` LIMIT 5 /* QNO 276 CO"..., packet_length=211) at /home/vsts/src/sql/sql_parse.cc:1496
#14 0x00005644c57c71a9 in do_command (thd=0x5644c86fefc0) at /home/vsts/src/sql/sql_parse.cc:1124
#15 0x00005644c59028f2 in do_handle_one_connection (thd_arg=0x5644c86fefc0) at /home/vsts/src/sql/sql_connect.cc:1330
#16 0x00005644c5902641 in handle_one_connection (arg=0x5644c86fefc0) at /home/vsts/src/sql/sql_connect.cc:1242
#17 0x00007ff8cffd46ba in start_thread (arg=0x7ff8cc074b00) at pthread_create.c:333
#18 0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 32 (Thread 0x7ff8cc0beb00 (LWP 8673)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00005644c607790a in safe_cond_timedwait (cond=0x5644c86f3af8, mp=0x5644c86f3a48, abstime=0x7ff8cc0bbec0, file=0x5644c61a00c0 "/home/vsts/src/include/mysql/psi/mysql_thread.h", line=1202) at /home/vsts/src/mysys/thr_mutex.c:547
#2  0x00005644c590b8f0 in inline_mysql_cond_timedwait (that=0x5644c86f3af8, mutex=0x5644c86f3a48, abstime=0x7ff8cc0bbec0, src_file=0x5644c61a03fa "/home/vsts/src/sql/mdl.cc", src_line=1088) at /home/vsts/src/include/mysql/psi/mysql_thread.h:1202
#3  0x00005644c590cc43 in MDL_wait::timed_wait (this=0x5644c86f3a48, owner=0x5644c86f3a00, abs_timeout=0x7ff8cc0bbec0, set_status_on_timeout=false, wait_state_name=0x5644c6935d70 <MDL_key::m_namespace_to_wait_state_name+48>) at /home/vsts/src/sql/mdl.cc:1088
#4  0x00005644c590e780 in MDL_context::acquire_lock (this=0x5644c86f3a48, mdl_request=0x7ff870006250, lock_wait_timeout=10) at /home/vsts/src/sql/mdl.cc:2125
#5  0x00005644c5762092 in open_table_get_mdl_lock (thd=0x5644c86f3950, ot_ctx=0x7ff8cc0bc580, mdl_request=0x7ff870006250, flags=0, mdl_ticket=0x7ff8cc0bc1b0) at /home/vsts/src/sql/sql_base.cc:2115
#6  0x00005644c576298d in open_table (thd=0x5644c86f3950, table_list=0x7ff870005e28, ot_ctx=0x7ff8cc0bc580) at /home/vsts/src/sql/sql_base.cc:2406
#7  0x00005644c5765947 in open_and_process_table (thd=0x5644c86f3950, lex=0x5644c86f73c0, tables=0x7ff870005e28, counter=0x7ff8cc0bc690, flags=0, prelocking_strategy=0x7ff8cc0bc600, has_prelocking_list=false, ot_ctx=0x7ff8cc0bc580) at /home/vsts/src/sql/sql_base.cc:4124
#8  0x00005644c5766a40 in open_tables (thd=0x5644c86f3950, options=..., start=0x7ff8cc0bc670, counter=0x7ff8cc0bc690, flags=0, prelocking_strategy=0x7ff8cc0bc600) at /home/vsts/src/sql/sql_base.cc:4639
#9  0x00005644c57a7b12 in open_tables (thd=0x5644c86f3950, tables=0x7ff8cc0bc670, counter=0x7ff8cc0bc690, flags=0) at /home/vsts/src/sql/sql_base.h:513
#10 0x00005644c58a91c4 in mysql_update (thd=0x5644c86f3950, table_list=0x7ff870005e28, fields=..., values=..., conds=0x7ff870006848, order_num=5, order=0x7ff870006ad8, limit=7, handle_duplicates=DUP_ERROR, ignore=true, found_return=0x7ff8cc0bcd50, updated_return=0x7ff8cc0bcde0) at /home/vsts/src/sql/sql_update.cc:285
#11 0x00005644c57ce748 in mysql_execute_command (thd=0x5644c86f3950) at /home/vsts/src/sql/sql_parse.cc:3790
#12 0x00005644c57d9f13 in mysql_parse (thd=0x5644c86f3950, rawbuf=0x7ff870005b08 "UPDATE LOW_PRIORITY IGNORE `table0_aria_key_pk_parts_2_int_autoinc` AS X SET `col_int` = 812253184 WHERE X.`pk` BETWEEN 4 AND 8 ORDER BY `col_char_12`,`col_char_12_key`,`col_int`,`col_int_key`,`pk` LI"..., length=229, parser_state=0x7ff8cc0bd670) at /home/vsts/src/sql/sql_parse.cc:7468
#13 0x00005644c57c8437 in dispatch_command (command=COM_QUERY, thd=0x5644c86f3950, packet=0x5644c86fadf1 "UPDATE LOW_PRIORITY IGNORE `table0_aria_key_pk_parts_2_int_autoinc` AS X SET `col_int` = 812253184 WHERE X.`pk` BETWEEN 4 AND 8 ORDER BY `col_char_12`,`col_char_12_key`,`col_int`,`col_int_key`,`pk` LI"..., packet_length=230) at /home/vsts/src/sql/sql_parse.cc:1496
#14 0x00005644c57c71a9 in do_command (thd=0x5644c86f3950) at /home/vsts/src/sql/sql_parse.cc:1124
#15 0x00005644c59028f2 in do_handle_one_connection (thd_arg=0x5644c86f3950) at /home/vsts/src/sql/sql_connect.cc:1330
#16 0x00005644c5902641 in handle_one_connection (arg=0x5644c86f3950) at /home/vsts/src/sql/sql_connect.cc:1242
#17 0x00007ff8cffd46ba in start_thread (arg=0x7ff8cc0beb00) at pthread_create.c:333
#18 0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 31 (Thread 0x7ff8cc108b00 (LWP 8670)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00005644c607790a in safe_cond_timedwait (cond=0x5644c86e8488, mp=0x5644c86e83d8, abstime=0x7ff8cc105ec0, file=0x5644c61a00c0 "/home/vsts/src/include/mysql/psi/mysql_thread.h", line=1202) at /home/vsts/src/mysys/thr_mutex.c:547
#2  0x00005644c590b8f0 in inline_mysql_cond_timedwait (that=0x5644c86e8488, mutex=0x5644c86e83d8, abstime=0x7ff8cc105ec0, src_file=0x5644c61a03fa "/home/vsts/src/sql/mdl.cc", src_line=1088) at /home/vsts/src/include/mysql/psi/mysql_thread.h:1202
#3  0x00005644c590cc43 in MDL_wait::timed_wait (this=0x5644c86e83d8, owner=0x5644c86e8390, abs_timeout=0x7ff8cc105ec0, set_status_on_timeout=false, wait_state_name=0x5644c6935d70 <MDL_key::m_namespace_to_wait_state_name+48>) at /home/vsts/src/sql/mdl.cc:1088
#4  0x00005644c590e780 in MDL_context::acquire_lock (this=0x5644c86e83d8, mdl_request=0x7ff87401a6c8, lock_wait_timeout=10) at /home/vsts/src/sql/mdl.cc:2125
#5  0x00005644c5762092 in open_table_get_mdl_lock (thd=0x5644c86e82e0, ot_ctx=0x7ff8cc106580, mdl_request=0x7ff87401a6c8, flags=0, mdl_ticket=0x7ff8cc1061b0) at /home/vsts/src/sql/sql_base.cc:2115
#6  0x00005644c576298d in open_table (thd=0x5644c86e82e0, table_list=0x7ff87401a2a0, ot_ctx=0x7ff8cc106580) at /home/vsts/src/sql/sql_base.cc:2406
#7  0x00005644c5765947 in open_and_process_table (thd=0x5644c86e82e0, lex=0x5644c86ebd50, tables=0x7ff87401a2a0, counter=0x7ff8cc106690, flags=0, prelocking_strategy=0x7ff8cc106600, has_prelocking_list=false, ot_ctx=0x7ff8cc106580) at /home/vsts/src/sql/sql_base.cc:4124
#8  0x00005644c5766a40 in open_tables (thd=0x5644c86e82e0, options=..., start=0x7ff8cc106670, counter=0x7ff8cc106690, flags=0, prelocking_strategy=0x7ff8cc106600) at /home/vsts/src/sql/sql_base.cc:4639
#9  0x00005644c57a7b12 in open_tables (thd=0x5644c86e82e0, tables=0x7ff8cc106670, counter=0x7ff8cc106690, flags=0) at /home/vsts/src/sql/sql_base.h:513
#10 0x00005644c58a91c4 in mysql_update (thd=0x5644c86e82e0, table_list=0x7ff87401a2a0, fields=..., values=..., conds=0x7ff87401ac60, order_num=5, order=0x7ff87401aef0, limit=7, handle_duplicates=DUP_ERROR, ignore=true, found_return=0x7ff8cc106d50, updated_return=0x7ff8cc106de0) at /home/vsts/src/sql/sql_update.cc:285
#11 0x00005644c57ce748 in mysql_execute_command (thd=0x5644c86e82e0) at /home/vsts/src/sql/sql_parse.cc:3790
#12 0x00005644c57d9f13 in mysql_parse (thd=0x5644c86e82e0, rawbuf=0x7ff874019fc8 "UPDATE LOW_PRIORITY IGNORE `view_table0_aria_int_autoinc` AS X SET `col_char_12` = 10 WHERE X.`col_int_key` < 2 ORDER BY `col_char_12`,`col_char_12_key`,`col_int`,`col_int_key`,`pk` LIMIT 7 /* QNO 387"..., length=213, parser_state=0x7ff8cc107670) at /home/vsts/src/sql/sql_parse.cc:7468
#13 0x00005644c57c8437 in dispatch_command (command=COM_QUERY, thd=0x5644c86e82e0, packet=0x5644c86ef781 "UPDATE LOW_PRIORITY IGNORE `view_table0_aria_int_autoinc` AS X SET `col_char_12` = 10 WHERE X.`col_int_key` < 2 ORDER BY `col_char_12`,`col_char_12_key`,`col_int`,`col_int_key`,`pk` LIMIT 7 /* QNO 387"..., packet_length=214) at /home/vsts/src/sql/sql_parse.cc:1496
#14 0x00005644c57c71a9 in do_command (thd=0x5644c86e82e0) at /home/vsts/src/sql/sql_parse.cc:1124
#15 0x00005644c59028f2 in do_handle_one_connection (thd_arg=0x5644c86e82e0) at /home/vsts/src/sql/sql_connect.cc:1330
#16 0x00005644c5902641 in handle_one_connection (arg=0x5644c86e82e0) at /home/vsts/src/sql/sql_connect.cc:1242
#17 0x00007ff8cffd46ba in start_thread (arg=0x7ff8cc108b00) at pthread_create.c:333
#18 0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 30 (Thread 0x7ff8d1085740 (LWP 8600)):
#0  0x00007ff8cf67374d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00005644c57031da in handle_connections_sockets () at /home/vsts/src/sql/mysqld.cc:6511
#2  0x00005644c5702196 in mysqld_main (argc=19, argv=0x5644c82581a8) at /home/vsts/src/sql/mysqld.cc:5936
#3  0x00005644c56f7600 in main (argc=19, argv=0x7ffc6f46a238) at /home/vsts/src/sql/main.cc:25

Thread 29 (Thread 0x7ff8cc19cb00 (LWP 8666)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00005644c607790a in safe_cond_timedwait (cond=0x5644c86d1868, mp=0x5644c86d17b8, abstime=0x7ff8cc19a2e0, file=0x5644c61a00c0 "/home/vsts/src/include/mysql/psi/mysql_thread.h", line=1202) at /home/vsts/src/mysys/thr_mutex.c:547
#2  0x00005644c590b8f0 in inline_mysql_cond_timedwait (that=0x5644c86d1868, mutex=0x5644c86d17b8, abstime=0x7ff8cc19a2e0, src_file=0x5644c61a03fa "/home/vsts/src/sql/mdl.cc", src_line=1088) at /home/vsts/src/include/mysql/psi/mysql_thread.h:1202
#3  0x00005644c590cc43 in MDL_wait::timed_wait (this=0x5644c86d17b8, owner=0x5644c86d1770, abs_timeout=0x7ff8cc19a2e0, set_status_on_timeout=false, wait_state_name=0x5644c6935d70 <MDL_key::m_namespace_to_wait_state_name+48>) at /home/vsts/src/sql/mdl.cc:1088
#4  0x00005644c590e780 in MDL_context::acquire_lock (this=0x5644c86d17b8, mdl_request=0x7ff86c474470, lock_wait_timeout=10) at /home/vsts/src/sql/mdl.cc:2125
#5  0x00005644c5762092 in open_table_get_mdl_lock (thd=0x5644c86d16c0, ot_ctx=0x7ff8cc19a9a0, mdl_request=0x7ff86c474470, flags=0, mdl_ticket=0x7ff8cc19a5d0) at /home/vsts/src/sql/sql_base.cc:2115
#6  0x00005644c576298d in open_table (thd=0x5644c86d16c0, table_list=0x7ff86c474048, ot_ctx=0x7ff8cc19a9a0) at /home/vsts/src/sql/sql_base.cc:2406
#7  0x00005644c5765947 in open_and_process_table (thd=0x5644c86d16c0, lex=0x5644c86d5130, tables=0x7ff86c474048, counter=0x7ff8cc19aa34, flags=0, prelocking_strategy=0x7ff8cc19aab0, has_prelocking_list=false, ot_ctx=0x7ff8cc19a9a0) at /home/vsts/src/sql/sql_base.cc:4124
#8  0x00005644c5766a40 in open_tables (thd=0x5644c86d16c0, options=..., start=0x7ff8cc19aa18, counter=0x7ff8cc19aa34, flags=0, prelocking_strategy=0x7ff8cc19aab0) at /home/vsts/src/sql/sql_base.cc:4639
#9  0x00005644c57680f8 in open_and_lock_tables (thd=0x5644c86d16c0, options=..., tables=0x7ff86c46ff08, derived=true, flags=0, prelocking_strategy=0x7ff8cc19aab0) at /home/vsts/src/sql/sql_base.cc:5385
#10 0x00005644c575b308 in open_and_lock_tables (thd=0x5644c86d16c0, tables=0x7ff86c46ff08, derived=true, flags=0) at /home/vsts/src/sql/sql_base.h:544
#11 0x00005644c57cf290 in mysql_execute_command (thd=0x5644c86d16c0) at /home/vsts/src/sql/sql_parse.cc:4013
#12 0x00005644c57d9f13 in mysql_parse (thd=0x5644c86d16c0, rawbuf=0x7ff86c46fb18 "INSERT LOW_PRIORITY IGNORE INTO `view_table0_aria_key_pk_parts_2_int_autoinc` ( `col_int_key` ) SELECT `col_char_12_key` FROM `view_table100_aria_key_pk_parts_2_int_autoinc` AS X WHERE X.`col_int_key`"..., length=307, parser_state=0x7ff8cc19b670) at /home/vsts/src/sql/sql_parse.cc:7468
#13 0x00005644c57c8437 in dispatch_command (command=COM_QUERY, thd=0x5644c86d16c0, packet=0x5644c86d8aa1 "INSERT LOW_PRIORITY IGNORE INTO `view_table0_aria_key_pk_parts_2_int_autoinc` ( `col_int_key` ) SELECT `col_char_12_key` FROM `view_table100_aria_key_pk_parts_2_int_autoinc` AS X WHERE X.`col_int_key`"..., packet_length=308) at /home/vsts/src/sql/sql_parse.cc:1496
#14 0x00005644c57c71a9 in do_command (thd=0x5644c86d16c0) at /home/vsts/src/sql/sql_parse.cc:1124
#15 0x00005644c59028f2 in do_handle_one_connection (thd_arg=0x5644c86d16c0) at /home/vsts/src/sql/sql_connect.cc:1330
#16 0x00005644c5902641 in handle_one_connection (arg=0x5644c86d16c0) at /home/vsts/src/sql/sql_connect.cc:1242
#17 0x00007ff8cffd46ba in start_thread (arg=0x7ff8cc19cb00) at pthread_create.c:333
#18 0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7ff8cc230b00 (LWP 8634)):
#0  0x00007ff8cf67374d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00005644c6118cc5 in vio_io_wait (vio=0x5644c8378930, event=VIO_IO_EVENT_READ, timeout=28800000) at /home/vsts/src/vio/viosocket.c:992
#2  0x00005644c6117531 in vio_socket_io_wait (vio=0x5644c8378930, event=VIO_IO_EVENT_READ) at /home/vsts/src/vio/viosocket.c:108
#3  0x00005644c61176e4 in vio_read (vio=0x5644c8378930, buf=0x5644c86c08a0 "\a", size=4) at /home/vsts/src/vio/viosocket.c:184
#4  0x00005644c570bbb0 in my_real_read (net=0x5644c86ba490, complen=0x7ff8cc22fdc0, header=1 '\001') at /home/vsts/src/sql/net_serv.cc:877
#5  0x00005644c570c344 in my_net_read_packet (net=0x5644c86ba490, read_from_server=1 '\001') at /home/vsts/src/sql/net_serv.cc:1140
#6  0x00005644c57c6be1 in do_command (thd=0x5644c86ba1d0) at /home/vsts/src/sql/sql_parse.cc:995
#7  0x00005644c59028f2 in do_handle_one_connection (thd_arg=0x5644c86ba1d0) at /home/vsts/src/sql/sql_connect.cc:1330
#8  0x00005644c5902641 in handle_one_connection (arg=0x5644c86ba1d0) at /home/vsts/src/sql/sql_connect.cc:1242
#9  0x00007ff8cffd46ba in start_thread (arg=0x7ff8cc230b00) at pthread_create.c:333
#10 0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7ff8cc1e6b00 (LWP 8664)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00005644c607790a in safe_cond_timedwait (cond=0x5644c86c5e68, mp=0x5644c86c5db8, abstime=0x7ff8cc1e49d0, file=0x5644c61a00c0 "/home/vsts/src/include/mysql/psi/mysql_thread.h", line=1202) at /home/vsts/src/mysys/thr_mutex.c:547
#2  0x00005644c590b8f0 in inline_mysql_cond_timedwait (that=0x5644c86c5e68, mutex=0x5644c86c5db8, abstime=0x7ff8cc1e49d0, src_file=0x5644c61a03fa "/home/vsts/src/sql/mdl.cc", src_line=1088) at /home/vsts/src/include/mysql/psi/mysql_thread.h:1202
#3  0x00005644c590cc43 in MDL_wait::timed_wait (this=0x5644c86c5db8, owner=0x5644c86c5d70, abs_timeout=0x7ff8cc1e49d0, set_status_on_timeout=true, wait_state_name=0x5644c6913d50 <stage_waiting_for_table_flush>) at /home/vsts/src/sql/mdl.cc:1088
#4  0x00005644c58c2d5d in TABLE_SHARE::wait_for_old_version (this=0x7ff86c5470f8, thd=0x5644c86c5cc0, abstime=0x7ff8cc1e49d0, deadlock_weight=100) at /home/vsts/src/sql/table.cc:4073
#5  0x00005644c575f136 in close_cached_tables (thd=0x5644c86c5cc0, tables=0x0, wait_for_refresh=true, timeout=10) at /home/vsts/src/sql/sql_base.cc:565
#6  0x00005644c5935ef1 in reload_acl_and_cache (thd=0x5644c86c5cc0, options=4, tables=0x0, write_to_binlog=0x7ff8cc1e4de0) at /home/vsts/src/sql/sql_reload.cc:343
#7  0x00005644c57d269d in mysql_execute_command (thd=0x5644c86c5cc0) at /home/vsts/src/sql/sql_parse.cc:4887
#8  0x00005644c57d9f13 in mysql_parse (thd=0x5644c86c5cc0, rawbuf=0x7ff86c0074a8 "FLUSH TABLES /* QNO 391 CON_ID 9 */", length=35, parser_state=0x7ff8cc1e5670) at /home/vsts/src/sql/sql_parse.cc:7468
#9  0x00005644c57c8437 in dispatch_command (command=COM_QUERY, thd=0x5644c86c5cc0, packet=0x5644c86cd4f1 "FLUSH TABLES /* QNO 391 CON_ID 9 */ ", packet_length=36) at /home/vsts/src/sql/sql_parse.cc:1496
#10 0x00005644c57c71a9 in do_command (thd=0x5644c86c5cc0) at /home/vsts/src/sql/sql_parse.cc:1124
#11 0x00005644c59028f2 in do_handle_one_connection (thd_arg=0x5644c86c5cc0) at /home/vsts/src/sql/sql_connect.cc:1330
#12 0x00005644c5902641 in handle_one_connection (arg=0x5644c86c5cc0) at /home/vsts/src/sql/sql_connect.cc:1242
#13 0x00007ff8cffd46ba in start_thread (arg=0x7ff8cc1e6b00) at pthread_create.c:333
#14 0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7ff89d7fa700 (LWP 8630)):
#0  0x00007ff8cf6755d3 in select () at ../sysdeps/unix/syscall-template.S:84
#1  0x00005644c5df5255 in os_thread_sleep (tm=1000000) at /home/vsts/src/storage/xtradb/os/os0thread.cc:307
#2  0x00005644c5f46694 in btr_defragment_thread () at /home/vsts/src/storage/xtradb/btr/btr0defragment.cc:708
#3  0x00007ff8cffd46ba in start_thread (arg=0x7ff89d7fa700) at pthread_create.c:333
#4  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7ff8cc27ab00 (LWP 8632)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005644c6077600 in safe_cond_wait (cond=0x5644c6b08b40 <COND_slave_background>, mp=0x5644c6b0bbc0 <LOCK_slave_background>, file=0x5644c6155720 "/home/vsts/src/include/mysql/psi/mysql_thread.h", line=1165) at /home/vsts/src/mysys/thr_mutex.c:493
#2  0x00005644c571fff0 in inline_mysql_cond_wait (that=0x5644c6b08b40 <COND_slave_background>, mutex=0x5644c6b0bbc0 <LOCK_slave_background>, src_file=0x5644c6155f3d "/home/vsts/src/sql/slave.cc", src_line=336) at /home/vsts/src/include/mysql/psi/mysql_thread.h:1165
#3  0x00005644c5720ce0 in handle_slave_background (arg=0x0) at /home/vsts/src/sql/slave.cc:336
#4  0x00007ff8cffd46ba in start_thread (arg=0x7ff8cc27ab00) at pthread_create.c:333
#5  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7ff8d0f05b00 (LWP 8631)):
#0  do_sigwait (sig=0x7ff8d0f05260, set=<optimized out>) at ../sysdeps/unix/sysv/linux/sigwait.c:64
#1  __sigwait (set=<optimized out>, sig=0x7ff8d0f05260) at ../sysdeps/unix/sysv/linux/sigwait.c:96
#2  0x00005644c56fd664 in signal_hand (arg=0x0) at /home/vsts/src/sql/mysqld.cc:3408
#3  0x00007ff8cffd46ba in start_thread (arg=0x7ff8d0f05b00) at pthread_create.c:333
#4  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7ff89dffb700 (LWP 8629)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005644c5df4673 in os_cond_wait (cond=0x5644c82b2988, fast_mutex=0x5644c82b2950) at /home/vsts/src/storage/xtradb/os/os0sync.cc:196
#2  0x00005644c5df49e1 in os_event_wait_low (event=0x5644c82b2950, reset_sig_count=1) at /home/vsts/src/storage/xtradb/os/os0sync.cc:477
#3  0x00005644c5f605d7 in buf_dump_thread () at /home/vsts/src/storage/xtradb/buf/buf0dump.cc:731
#4  0x00007ff8cffd46ba in start_thread (arg=0x7ff89dffb700) at pthread_create.c:333
#5  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7ff89e7fc700 (LWP 8628)):
#0  0x00007ff8cf6755d3 in select () at ../sysdeps/unix/syscall-template.S:84
#1  0x00005644c5df5255 in os_thread_sleep (tm=1000000) at /home/vsts/src/storage/xtradb/os/os0thread.cc:307
#2  0x00005644c5f68d45 in page_cleaner_sleep_if_needed (next_loop_time=1548994438163) at /home/vsts/src/storage/xtradb/buf/buf0flu.cc:2678
#3  0x00005644c5f696c4 in buf_flush_lru_manager_thread (arg=0x0) at /home/vsts/src/storage/xtradb/buf/buf0flu.cc:2979
#4  0x00007ff8cffd46ba in start_thread (arg=0x7ff89e7fc700) at pthread_create.c:333
#5  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7ff8a4bdd700 (LWP 8624)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00005644c5df458b in os_cond_wait_timed (cond=0x5644c87fb4a8, fast_mutex=0x5644c87fb470, abstime=0x7ff8a4bdced0) at /home/vsts/src/storage/xtradb/os/os0sync.cc:159
#2  0x00005644c5df4b8c in os_event_wait_time_low (event=0x5644c87fb470, time_in_usec=10000000, reset_sig_count=1) at /home/vsts/src/storage/xtradb/os/os0sync.cc:591
#3  0x00005644c5fb8627 in dict_stats_thread () at /home/vsts/src/storage/xtradb/dict/dict0stats_bg.cc:534
#4  0x00007ff8cffd46ba in start_thread (arg=0x7ff8a4bdd700) at pthread_create.c:333
#5  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7ff8a5bdf700 (LWP 8622)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00005644c5df458b in os_cond_wait_timed (cond=0x5644c82ba3a8, fast_mutex=0x5644c82ba370, abstime=0x7ff8a5bdee70) at /home/vsts/src/storage/xtradb/os/os0sync.cc:159
#2  0x00005644c5df4b8c in os_event_wait_time_low (event=0x5644c82ba370, time_in_usec=1000000, reset_sig_count=1) at /home/vsts/src/storage/xtradb/os/os0sync.cc:591
#3  0x00005644c5eb8834 in srv_error_monitor_thread () at /home/vsts/src/storage/xtradb/srv/srv0srv.cc:2424
#4  0x00007ff8cffd46ba in start_thread (arg=0x7ff8a5bdf700) at pthread_create.c:333
#5  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7ff89effd700 (LWP 8627)):
#0  0x00007ff8cf6755d3 in select () at ../sysdeps/unix/syscall-template.S:84
#1  0x00005644c5df5255 in os_thread_sleep (tm=1000000) at /home/vsts/src/storage/xtradb/os/os0thread.cc:307
#2  0x00005644c5f68d45 in page_cleaner_sleep_if_needed (next_loop_time=1548994438164) at /home/vsts/src/storage/xtradb/buf/buf0flu.cc:2678
#3  0x00005644c5f69096 in buf_flush_page_cleaner_thread (arg=0x0) at /home/vsts/src/storage/xtradb/buf/buf0flu.cc:2819
#4  0x00007ff8cffd46ba in start_thread (arg=0x7ff89effd700) at pthread_create.c:333
#5  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7ff8a75e7700 (LWP 8617)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005644c5df4673 in os_cond_wait (cond=0x5644c8449cf8, fast_mutex=0x5644c8449cc0) at /home/vsts/src/storage/xtradb/os/os0sync.cc:196
#2  0x00005644c5df49e1 in os_event_wait_low (event=0x5644c8449cc0, reset_sig_count=1) at /home/vsts/src/storage/xtradb/os/os0sync.cc:477
#3  0x00005644c5df2fad in os_aio_simulated_handle (global_segment=9, message1=0x7ff8a75e6e80, message2=0x7ff8a75e6e88, type=0x7ff8a75e6e90, space_id=0x7ff8a75e6e98) at /home/vsts/src/storage/xtradb/os/os0file.cc:6204
#4  0x00005644c5fccb88 in fil_aio_wait (segment=9) at /home/vsts/src/storage/xtradb/fil/fil0fil.cc:6254
#5  0x00005644c5ebcf46 in io_handler_thread (arg=0x5644c7370b48 <n+72>) at /home/vsts/src/storage/xtradb/srv/srv0start.cc:585
#6  0x00007ff8cffd46ba in start_thread (arg=0x7ff8a75e7700) at pthread_create.c:333
#7  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7ff89f7fe700 (LWP 8626)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005644c5df4673 in os_cond_wait (cond=0x5644c8259018, fast_mutex=0x5644c8258fe0) at /home/vsts/src/storage/xtradb/os/os0sync.cc:196
#2  0x00005644c5df49e1 in os_event_wait_low (event=0x5644c8258fe0, reset_sig_count=1) at /home/vsts/src/storage/xtradb/os/os0sync.cc:477
#3  0x00005644c5eb572e in srv_resume_thread (slot=0x5644c736c418 <srv_sys+536>, sig_count=1, wait=true, timeout_usec=0) at /home/vsts/src/storage/xtradb/srv/srv0srv.cc:1082
#4  0x00005644c5ebaaea in srv_purge_coordinator_suspend (slot=0x5644c736c418 <srv_sys+536>, rseg_history_len=8) at /home/vsts/src/storage/xtradb/srv/srv0srv.cc:3492
#5  0x00005644c5ebae9c in srv_purge_coordinator_thread (arg=0x0) at /home/vsts/src/storage/xtradb/srv/srv0srv.cc:3583
#6  0x00007ff8cffd46ba in start_thread (arg=0x7ff89f7fe700) at pthread_create.c:333
#7  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7ff8a7de8700 (LWP 8616)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005644c5df4673 in os_cond_wait (cond=0x5644c8449c88, fast_mutex=0x5644c8449c50) at /home/vsts/src/storage/xtradb/os/os0sync.cc:196
#2  0x00005644c5df49e1 in os_event_wait_low (event=0x5644c8449c50, reset_sig_count=1) at /home/vsts/src/storage/xtradb/os/os0sync.cc:477
#3  0x00005644c5df2fad in os_aio_simulated_handle (global_segment=8, message1=0x7ff8a7de7e80, message2=0x7ff8a7de7e88, type=0x7ff8a7de7e90, space_id=0x7ff8a7de7e98) at /home/vsts/src/storage/xtradb/os/os0file.cc:6204
#4  0x00005644c5fccb88 in fil_aio_wait (segment=8) at /home/vsts/src/storage/xtradb/fil/fil0fil.cc:6254
#5  0x00005644c5ebcf46 in io_handler_thread (arg=0x5644c7370b40 <n+64>) at /home/vsts/src/storage/xtradb/srv/srv0start.cc:585
#6  0x00007ff8cffd46ba in start_thread (arg=0x7ff8a7de8700) at pthread_create.c:333
#7  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7ff89ffff700 (LWP 8625)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00005644c5df458b in os_cond_wait_timed (cond=0x5644c8600ac8, fast_mutex=0x5644c8600a90, abstime=0x7ff89fffee20) at /home/vsts/src/storage/xtradb/os/os0sync.cc:159
#2  0x00005644c5df4b8c in os_event_wait_time_low (event=0x5644c8600a90, time_in_usec=5000000, reset_sig_count=1) at /home/vsts/src/storage/xtradb/os/os0sync.cc:591
#3  0x00005644c5f00be1 in ib_wqueue_timedwait (wq=0x5644c889de98, wait_in_usecs=5000000) at /home/vsts/src/storage/xtradb/ut/ut0wqueue.cc:154
#4  0x00005644c6003cce in fts_optimize_thread (arg=0x5644c889de98) at /home/vsts/src/storage/xtradb/fts/fts0opt.cc:2915
#5  0x00007ff8cffd46ba in start_thread (arg=0x7ff89ffff700) at pthread_create.c:333
#6  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7ff8a85e9700 (LWP 8615)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005644c5df4673 in os_cond_wait (cond=0x5644c8449c18, fast_mutex=0x5644c8449be0) at /home/vsts/src/storage/xtradb/os/os0sync.cc:196
#2  0x00005644c5df49e1 in os_event_wait_low (event=0x5644c8449be0, reset_sig_count=1) at /home/vsts/src/storage/xtradb/os/os0sync.cc:477
#3  0x00005644c5df2fad in os_aio_simulated_handle (global_segment=7, message1=0x7ff8a85e8e80, message2=0x7ff8a85e8e88, type=0x7ff8a85e8e90, space_id=0x7ff8a85e8e98) at /home/vsts/src/storage/xtradb/os/os0file.cc:6204
#4  0x00005644c5fccb88 in fil_aio_wait (segment=7) at /home/vsts/src/storage/xtradb/fil/fil0fil.cc:6254
#5  0x00005644c5ebcf46 in io_handler_thread (arg=0x5644c7370b38 <n+56>) at /home/vsts/src/storage/xtradb/srv/srv0start.cc:585
#6  0x00007ff8cffd46ba in start_thread (arg=0x7ff8a85e9700) at pthread_create.c:333
#7  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7ff8a53de700 (LWP 8623)):
#0  0x00007ff8cf6755d3 in select () at ../sysdeps/unix/syscall-template.S:84
#1  0x00005644c5df5255 in os_thread_sleep (tm=1000000) at /home/vsts/src/storage/xtradb/os/os0thread.cc:307
#2  0x00005644c5eb9f9c in srv_master_sleep () at /home/vsts/src/storage/xtradb/srv/srv0srv.cc:3116
#3  0x00005644c5eba0e0 in srv_master_thread (arg=0x0) at /home/vsts/src/storage/xtradb/srv/srv0srv.cc:3166
#4  0x00007ff8cffd46ba in start_thread (arg=0x7ff8a53de700) at pthread_create.c:333
#5  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7ff8a95eb700 (LWP 8613)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005644c5df4673 in os_cond_wait (cond=0x5644c8449b38, fast_mutex=0x5644c8449b00) at /home/vsts/src/storage/xtradb/os/os0sync.cc:196
#2  0x00005644c5df49e1 in os_event_wait_low (event=0x5644c8449b00, reset_sig_count=1) at /home/vsts/src/storage/xtradb/os/os0sync.cc:477
#3  0x00005644c5df2fad in os_aio_simulated_handle (global_segment=5, message1=0x7ff8a95eae80, message2=0x7ff8a95eae88, type=0x7ff8a95eae90, space_id=0x7ff8a95eae98) at /home/vsts/src/storage/xtradb/os/os0file.cc:6204
#4  0x00005644c5fccb88 in fil_aio_wait (segment=5) at /home/vsts/src/storage/xtradb/fil/fil0fil.cc:6254
#5  0x00005644c5ebcf46 in io_handler_thread (arg=0x5644c7370b28 <n+40>) at /home/vsts/src/storage/xtradb/srv/srv0start.cc:585
#6  0x00007ff8cffd46ba in start_thread (arg=0x7ff8a95eb700) at pthread_create.c:333
#7  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7ff8a9dec700 (LWP 8612)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005644c5df4673 in os_cond_wait (cond=0x5644c8449ac8, fast_mutex=0x5644c8449a90) at /home/vsts/src/storage/xtradb/os/os0sync.cc:196
#2  0x00005644c5df49e1 in os_event_wait_low (event=0x5644c8449a90, reset_sig_count=1) at /home/vsts/src/storage/xtradb/os/os0sync.cc:477
#3  0x00005644c5df2fad in os_aio_simulated_handle (global_segment=4, message1=0x7ff8a9debe80, message2=0x7ff8a9debe88, type=0x7ff8a9debe90, space_id=0x7ff8a9debe98) at /home/vsts/src/storage/xtradb/os/os0file.cc:6204
#4  0x00005644c5fccb88 in fil_aio_wait (segment=4) at /home/vsts/src/storage/xtradb/fil/fil0fil.cc:6254
#5  0x00005644c5ebcf46 in io_handler_thread (arg=0x5644c7370b20 <n+32>) at /home/vsts/src/storage/xtradb/srv/srv0start.cc:585
#6  0x00007ff8cffd46ba in start_thread (arg=0x7ff8a9dec700) at pthread_create.c:333
#7  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7ff8aa5ed700 (LWP 8611)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005644c5df4673 in os_cond_wait (cond=0x5644c8449a58, fast_mutex=0x5644c8449a20) at /home/vsts/src/storage/xtradb/os/os0sync.cc:196
#2  0x00005644c5df49e1 in os_event_wait_low (event=0x5644c8449a20, reset_sig_count=1) at /home/vsts/src/storage/xtradb/os/os0sync.cc:477
#3  0x00005644c5df2fad in os_aio_simulated_handle (global_segment=3, message1=0x7ff8aa5ece80, message2=0x7ff8aa5ece88, type=0x7ff8aa5ece90, space_id=0x7ff8aa5ece98) at /home/vsts/src/storage/xtradb/os/os0file.cc:6204
#4  0x00005644c5fccb88 in fil_aio_wait (segment=3) at /home/vsts/src/storage/xtradb/fil/fil0fil.cc:6254
#5  0x00005644c5ebcf46 in io_handler_thread (arg=0x5644c7370b18 <n+24>) at /home/vsts/src/storage/xtradb/srv/srv0start.cc:585
#6  0x00007ff8cffd46ba in start_thread (arg=0x7ff8aa5ed700) at pthread_create.c:333
#7  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7ff8a63e0700 (LWP 8621)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00005644c5df458b in os_cond_wait_timed (cond=0x5644c85a4118, fast_mutex=0x5644c85a40e0, abstime=0x7ff8a63dfeb0) at /home/vsts/src/storage/xtradb/os/os0sync.cc:159
#2  0x00005644c5df4b8c in os_event_wait_time_low (event=0x5644c85a40e0, time_in_usec=1000000, reset_sig_count=1) at /home/vsts/src/storage/xtradb/os/os0sync.cc:591
#3  0x00005644c5dc4b37 in lock_wait_timeout_thread () at /home/vsts/src/storage/xtradb/lock/lock0wait.cc:597
#4  0x00007ff8cffd46ba in start_thread (arg=0x7ff8a63e0700) at pthread_create.c:333
#5  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7ff8aadee700 (LWP 8610)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005644c5df4673 in os_cond_wait (cond=0x5644c84499e8, fast_mutex=0x5644c84499b0) at /home/vsts/src/storage/xtradb/os/os0sync.cc:196
#2  0x00005644c5df49e1 in os_event_wait_low (event=0x5644c84499b0, reset_sig_count=1) at /home/vsts/src/storage/xtradb/os/os0sync.cc:477
#3  0x00005644c5df2fad in os_aio_simulated_handle (global_segment=2, message1=0x7ff8aadede80, message2=0x7ff8aadede88, type=0x7ff8aadede90, space_id=0x7ff8aadede98) at /home/vsts/src/storage/xtradb/os/os0file.cc:6204
#4  0x00005644c5fccb88 in fil_aio_wait (segment=2) at /home/vsts/src/storage/xtradb/fil/fil0fil.cc:6254
#5  0x00005644c5ebcf46 in io_handler_thread (arg=0x5644c7370b10 <n+16>) at /home/vsts/src/storage/xtradb/srv/srv0start.cc:585
#6  0x00007ff8cffd46ba in start_thread (arg=0x7ff8aadee700) at pthread_create.c:333
#7  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7ff8a6be1700 (LWP 8618)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00005644c5df458b in os_cond_wait_timed (cond=0x5644c82d1a78, fast_mutex=0x5644c82d1a40, abstime=0x7ff8a6be0e80) at /home/vsts/src/storage/xtradb/os/os0sync.cc:159
#2  0x00005644c5df4b8c in os_event_wait_time_low (event=0x5644c82d1a40, time_in_usec=5000000, reset_sig_count=1) at /home/vsts/src/storage/xtradb/os/os0sync.cc:591
#3  0x00005644c5eb8206 in srv_monitor_thread () at /home/vsts/src/storage/xtradb/srv/srv0srv.cc:2183
#4  0x00007ff8cffd46ba in start_thread (arg=0x7ff8a6be1700) at pthread_create.c:333
#5  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7ff8b88db700 (LWP 8608)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005644c5df4673 in os_cond_wait (cond=0x5644c8449908, fast_mutex=0x5644c84498d0) at /home/vsts/src/storage/xtradb/os/os0sync.cc:196
#2  0x00005644c5df49e1 in os_event_wait_low (event=0x5644c84498d0, reset_sig_count=1) at /home/vsts/src/storage/xtradb/os/os0sync.cc:477
#3  0x00005644c5df2fad in os_aio_simulated_handle (global_segment=0, message1=0x7ff8b88dae80, message2=0x7ff8b88dae88, type=0x7ff8b88dae90, space_id=0x7ff8b88dae98) at /home/vsts/src/storage/xtradb/os/os0file.cc:6204
#4  0x00005644c5fccb88 in fil_aio_wait (segment=0) at /home/vsts/src/storage/xtradb/fil/fil0fil.cc:6254
#5  0x00005644c5ebcf46 in io_handler_thread (arg=0x5644c7370b00 <n>) at /home/vsts/src/storage/xtradb/srv/srv0start.cc:585
#6  0x00007ff8cffd46ba in start_thread (arg=0x7ff8b88db700) at pthread_create.c:333
#7  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7ff8a8dea700 (LWP 8614)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005644c5df4673 in os_cond_wait (cond=0x5644c8449ba8, fast_mutex=0x5644c8449b70) at /home/vsts/src/storage/xtradb/os/os0sync.cc:196
#2  0x00005644c5df49e1 in os_event_wait_low (event=0x5644c8449b70, reset_sig_count=2) at /home/vsts/src/storage/xtradb/os/os0sync.cc:477
#3  0x00005644c5df2fad in os_aio_simulated_handle (global_segment=6, message1=0x7ff8a8de9e80, message2=0x7ff8a8de9e88, type=0x7ff8a8de9e90, space_id=0x7ff8a8de9e98) at /home/vsts/src/storage/xtradb/os/os0file.cc:6204
#4  0x00005644c5fccb88 in fil_aio_wait (segment=6) at /home/vsts/src/storage/xtradb/fil/fil0fil.cc:6254
#5  0x00005644c5ebcf46 in io_handler_thread (arg=0x5644c7370b30 <n+48>) at /home/vsts/src/storage/xtradb/srv/srv0start.cc:585
#6  0x00007ff8cffd46ba in start_thread (arg=0x7ff8a8dea700) at pthread_create.c:333
#7  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7ff8ccc99700 (LWP 8606)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00005644c607790a in safe_cond_timedwait (cond=0x5644c7336b00 <COND_checkpoint>, mp=0x5644c7336a40 <LOCK_checkpoint>, abstime=0x7ff8ccc98e50, file=0x5644c6278900 "/home/vsts/src/include/mysql/psi/mysql_thread.h", line=1202) at /home/vsts/src/mysys/thr_mutex.c:547
#2  0x00005644c5c1847c in inline_mysql_cond_timedwait (that=0x5644c7336b00 <COND_checkpoint>, mutex=0x5644c7336a40 <LOCK_checkpoint>, abstime=0x7ff8ccc98e50, src_file=0x5644c6278930 "/home/vsts/src/storage/maria/ma_servicethread.c", src_line=116) at /home/vsts/src/include/mysql/psi/mysql_thread.h:1202
#3  0x00005644c5c18913 in my_service_thread_sleep (control=0x5644c6940da0 <checkpoint_control>, sleep_time=29000000000) at /home/vsts/src/storage/maria/ma_servicethread.c:115
#4  0x00005644c5c0d261 in ma_checkpoint_background (arg=0x1e) at /home/vsts/src/storage/maria/ma_checkpoint.c:708
#5  0x00007ff8cffd46ba in start_thread (arg=0x7ff8ccc99700) at pthread_create.c:333
#6  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7ff8ab5ef700 (LWP 8609)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00005644c5df4673 in os_cond_wait (cond=0x5644c8449978, fast_mutex=0x5644c8449940) at /home/vsts/src/storage/xtradb/os/os0sync.cc:196
#2  0x00005644c5df49e1 in os_event_wait_low (event=0x5644c8449940, reset_sig_count=3) at /home/vsts/src/storage/xtradb/os/os0sync.cc:477
#3  0x00005644c5df2fad in os_aio_simulated_handle (global_segment=1, message1=0x7ff8ab5eee80, message2=0x7ff8ab5eee88, type=0x7ff8ab5eee90, space_id=0x7ff8ab5eee98) at /home/vsts/src/storage/xtradb/os/os0file.cc:6204
#4  0x00005644c5fccb88 in fil_aio_wait (segment=1) at /home/vsts/src/storage/xtradb/fil/fil0fil.cc:6254
#5  0x00005644c5ebcf46 in io_handler_thread (arg=0x5644c7370b08 <n+8>) at /home/vsts/src/storage/xtradb/srv/srv0start.cc:585
#6  0x00007ff8cffd46ba in start_thread (arg=0x7ff8ab5ef700) at pthread_create.c:333
#7  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7ff8cf361700 (LWP 8601)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00005644c607790a in safe_cond_timedwait (cond=0x5644c738b0e0 <COND_timer>, mp=0x5644c738b020 <LOCK_timer>, abstime=0x7ff8cf360f00, file=0x5644c6356aa0 "/home/vsts/src/include/mysql/psi/mysql_thread.h", line=1202) at /home/vsts/src/mysys/thr_mutex.c:547
#2  0x00005644c60788aa in inline_mysql_cond_timedwait (that=0x5644c738b0e0 <COND_timer>, mutex=0x5644c738b020 <LOCK_timer>, abstime=0x7ff8cf360f00, src_file=0x5644c6356ad0 "/home/vsts/src/mysys/thr_timer.c", src_line=292) at /home/vsts/src/include/mysql/psi/mysql_thread.h:1202
#3  0x00005644c6079358 in timer_handler (arg=0x0) at /home/vsts/src/mysys/thr_timer.c:292
#4  0x00007ff8cffd46ba in start_thread (arg=0x7ff8cf361700) at pthread_create.c:333
#5  0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7ff8cc152b00 (LWP 8668)):
#0  __pthread_kill (threadid=<optimized out>, signo=11) at ../sysdeps/unix/sysv/linux/pthread_kill.c:62
#1  0x00005644c60720c2 in my_write_core (sig=11) at /home/vsts/src/mysys/stacktrace.c:477
#2  0x00005644c5a0cb61 in handle_fatal_signal (sig=11) at /home/vsts/src/sql/signal_handler.cc:296
#3  <signal handler called>
#4  0x00005644c5bdcbb5 in maria_create_trn_for_mysql (info=0x7ff8740a4620) at /home/vsts/src/storage/maria/ha_maria.cc:914
#5  0x00005644c5bcbe0a in _ma_setup_live_state (info=0x7ff8740a4620) at /home/vsts/src/storage/maria/ma_state.c:65
#6  0x00005644c5be22b0 in ha_maria::implicit_commit (thd=0x5644c86dcc70, new_trn=true) at /home/vsts/src/storage/maria/ha_maria.cc:2929
#7  0x00005644c5a0f8dd in ha_commit_trans (thd=0x5644c86dcc70, all=true) at /home/vsts/src/sql/handler.cc:1357
#8  0x00005644c59172a4 in trans_commit_implicit (thd=0x5644c86dcc70) at /home/vsts/src/sql/transaction.cc:294
#9  0x00005644c57d5ab2 in mysql_execute_command (thd=0x5644c86dcc70) at /home/vsts/src/sql/sql_parse.cc:5814
#10 0x00005644c57d9f13 in mysql_parse (thd=0x5644c86dcc70, rawbuf=0x7ff868012828 "ALTER IGNORE TABLE `table0_aria_int_autoinc` DROP FOREIGN KEY f /* 100307, ALGORITHM=NOCOPY */, LOCK=SHARED /* QNO 387 CON_ID 11 */", length=131, parser_state=0x7ff8cc151670) at /home/vsts/src/sql/sql_parse.cc:7468
#11 0x00005644c57c8437 in dispatch_command (command=COM_QUERY, thd=0x5644c86dcc70, packet=0x5644c86e4111 "ALTER IGNORE TABLE `table0_aria_int_autoinc` DROP FOREIGN KEY f /*!100307, ALGORITHM=NOCOPY */, LOCK=SHARED /* QNO 387 CON_ID 11 */ ", packet_length=132) at /home/vsts/src/sql/sql_parse.cc:1496
#12 0x00005644c57c71a9 in do_command (thd=0x5644c86dcc70) at /home/vsts/src/sql/sql_parse.cc:1124
#13 0x00005644c59028f2 in do_handle_one_connection (thd_arg=0x5644c86dcc70) at /home/vsts/src/sql/sql_connect.cc:1330
#14 0x00005644c5902641 in handle_one_connection (arg=0x5644c86dcc70) at /home/vsts/src/sql/sql_connect.cc:1242
#15 0x00007ff8cffd46ba in start_thread (arg=0x7ff8cc152b00) at pthread_create.c:333
#16 0x00007ff8cf67f41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109