[New LWP 18231]
[New LWP 18230]
[New LWP 18229]
[New LWP 18228]
[New LWP 18227]
[New LWP 18226]
[New LWP 18225]
[New LWP 18224]
[New LWP 18223]
[New LWP 18222]
[New LWP 18219]
[New LWP 18218]
[New LWP 18217]
[New LWP 18215]
[New LWP 18214]
[New LWP 18213]
[New LWP 18212]
[New LWP 18211]
[New LWP 18210]
[New LWP 18209]
[New LWP 18208]
[New LWP 18207]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f0abe8ee233 in select () from /lib/x86_64-linux-gnu/libc.so.6

Thread 23 (Thread 0x7f0aba5b2700 (LWP 18207)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x0000556bc4437c5d in safe_cond_timedwait (cond=0x556bc5a43c40 <COND_timer>, mp=0x556bc5a43b80 <LOCK_timer>, abstime=0x7f0aba5b1eb0, file=0x556bc48ce490 "/data/src/10.4/include/mysql/psi/mysql_thread.h", line=1204) at /data/src/10.4/mysys/thr_mutex.c:546
#2  0x0000556bc4438c21 in inline_mysql_cond_timedwait (that=0x556bc5a43c40 <COND_timer>, mutex=0x556bc5a43b80 <LOCK_timer>, abstime=0x7f0aba5b1eb0, src_file=0x556bc48ce4c0 "/data/src/10.4/mysys/thr_timer.c", src_line=292) at /data/src/10.4/include/mysql/psi/mysql_thread.h:1204
#3  0x0000556bc443977f in timer_handler (arg=0x0) at /data/src/10.4/mysys/thr_timer.c:292
#4  0x0000556bc3f89a89 in pfs_spawn_thread (arg=0x556bc640a500) at /data/src/10.4/storage/perfschema/pfs.cc:1862
#5  0x00007f0ac050f494 in start_thread (arg=0x7f0aba5b2700) at pthread_create.c:333
#6  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 22 (Thread 0x7f0ab9248700 (LWP 18208)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x0000556bc4437c5d in safe_cond_timedwait (cond=0x556bc59dfb00 <COND_checkpoint>, mp=0x556bc59dfa40 <LOCK_checkpoint>, abstime=0x7f0ab9247e00, file=0x556bc471fd50 "/data/src/10.4/include/mysql/psi/mysql_thread.h", line=1204) at /data/src/10.4/mysys/thr_mutex.c:546
#2  0x0000556bc3ecf0d0 in inline_mysql_cond_timedwait (that=0x556bc59dfb00 <COND_checkpoint>, mutex=0x556bc59dfa40 <LOCK_checkpoint>, abstime=0x7f0ab9247e00, src_file=0x556bc471fd80 "/data/src/10.4/storage/maria/ma_servicethread.c", src_line=116) at /data/src/10.4/include/mysql/psi/mysql_thread.h:1204
#3  0x0000556bc3ecf5f4 in my_service_thread_sleep (control=0x556bc4fcf400 <checkpoint_control>, sleep_time=29000000000) at /data/src/10.4/storage/maria/ma_servicethread.c:115
#4  0x0000556bc3ec3b07 in ma_checkpoint_background (arg=0x1e) at /data/src/10.4/storage/maria/ma_checkpoint.c:707
#5  0x0000556bc3f89a89 in pfs_spawn_thread (arg=0x556bc64b7f80) at /data/src/10.4/storage/perfschema/pfs.cc:1862
#6  0x00007f0ac050f494 in start_thread (arg=0x7f0ab9248700) at pthread_create.c:333
#7  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 21 (Thread 0x7f0ab37af700 (LWP 18209)):
#0  0x00007f0ac03066ea in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x0000556bc40768ef in LinuxAIOHandler::collect (this=0x7f0ab37aec40) at /data/src/10.4/storage/innobase/os/os0file.cc:1915
#2  0x0000556bc4076e1c in LinuxAIOHandler::poll (this=0x7f0ab37aec40, m1=0x7f0ab37aece8, m2=0x7f0ab37aecf0, request=0x7f0ab37aed20) at /data/src/10.4/storage/innobase/os/os0file.cc:2060
#3  0x0000556bc4076f7c in os_aio_linux_handler (global_segment=0, m1=0x7f0ab37aece8, m2=0x7f0ab37aecf0, request=0x7f0ab37aed20) at /data/src/10.4/storage/innobase/os/os0file.cc:2114
#4  0x0000556bc407baac in os_aio_handler (segment=0, m1=0x7f0ab37aece8, m2=0x7f0ab37aecf0, request=0x7f0ab37aed20) at /data/src/10.4/storage/innobase/os/os0file.cc:5665
#5  0x0000556bc42d3985 in fil_aio_wait (segment=0) at /data/src/10.4/storage/innobase/fil/fil0fil.cc:4370
#6  0x0000556bc4176588 in io_handler_thread (arg=0x556bc5a2a800 <n>) at /data/src/10.4/storage/innobase/srv/srv0start.cc:325
#7  0x00007f0ac050f494 in start_thread (arg=0x7f0ab37af700) at pthread_create.c:333
#8  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 20 (Thread 0x7f0ab2fae700 (LWP 18210)):
#0  0x00007f0ac03066ea in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x0000556bc40768ef in LinuxAIOHandler::collect (this=0x7f0ab2fadc40) at /data/src/10.4/storage/innobase/os/os0file.cc:1915
#2  0x0000556bc4076e1c in LinuxAIOHandler::poll (this=0x7f0ab2fadc40, m1=0x7f0ab2fadce8, m2=0x7f0ab2fadcf0, request=0x7f0ab2fadd20) at /data/src/10.4/storage/innobase/os/os0file.cc:2060
#3  0x0000556bc4076f7c in os_aio_linux_handler (global_segment=1, m1=0x7f0ab2fadce8, m2=0x7f0ab2fadcf0, request=0x7f0ab2fadd20) at /data/src/10.4/storage/innobase/os/os0file.cc:2114
#4  0x0000556bc407baac in os_aio_handler (segment=1, m1=0x7f0ab2fadce8, m2=0x7f0ab2fadcf0, request=0x7f0ab2fadd20) at /data/src/10.4/storage/innobase/os/os0file.cc:5665
#5  0x0000556bc42d3985 in fil_aio_wait (segment=1) at /data/src/10.4/storage/innobase/fil/fil0fil.cc:4370
#6  0x0000556bc4176588 in io_handler_thread (arg=0x556bc5a2a808 <n+8>) at /data/src/10.4/storage/innobase/srv/srv0start.cc:325
#7  0x00007f0ac050f494 in start_thread (arg=0x7f0ab2fae700) at pthread_create.c:333
#8  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 19 (Thread 0x7f0ab27ad700 (LWP 18211)):
#0  0x00007f0ac03066ea in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x0000556bc40768ef in LinuxAIOHandler::collect (this=0x7f0ab27acc40) at /data/src/10.4/storage/innobase/os/os0file.cc:1915
#2  0x0000556bc4076e1c in LinuxAIOHandler::poll (this=0x7f0ab27acc40, m1=0x7f0ab27acce8, m2=0x7f0ab27accf0, request=0x7f0ab27acd20) at /data/src/10.4/storage/innobase/os/os0file.cc:2060
#3  0x0000556bc4076f7c in os_aio_linux_handler (global_segment=2, m1=0x7f0ab27acce8, m2=0x7f0ab27accf0, request=0x7f0ab27acd20) at /data/src/10.4/storage/innobase/os/os0file.cc:2114
#4  0x0000556bc407baac in os_aio_handler (segment=2, m1=0x7f0ab27acce8, m2=0x7f0ab27accf0, request=0x7f0ab27acd20) at /data/src/10.4/storage/innobase/os/os0file.cc:5665
#5  0x0000556bc42d3985 in fil_aio_wait (segment=2) at /data/src/10.4/storage/innobase/fil/fil0fil.cc:4370
#6  0x0000556bc4176588 in io_handler_thread (arg=0x556bc5a2a810 <n+16>) at /data/src/10.4/storage/innobase/srv/srv0start.cc:325
#7  0x00007f0ac050f494 in start_thread (arg=0x7f0ab27ad700) at pthread_create.c:333
#8  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 18 (Thread 0x7f0ab1fac700 (LWP 18212)):
#0  0x00007f0ac03066ea in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x0000556bc40768ef in LinuxAIOHandler::collect (this=0x7f0ab1fabc40) at /data/src/10.4/storage/innobase/os/os0file.cc:1915
#2  0x0000556bc4076e1c in LinuxAIOHandler::poll (this=0x7f0ab1fabc40, m1=0x7f0ab1fabce8, m2=0x7f0ab1fabcf0, request=0x7f0ab1fabd20) at /data/src/10.4/storage/innobase/os/os0file.cc:2060
#3  0x0000556bc4076f7c in os_aio_linux_handler (global_segment=3, m1=0x7f0ab1fabce8, m2=0x7f0ab1fabcf0, request=0x7f0ab1fabd20) at /data/src/10.4/storage/innobase/os/os0file.cc:2114
#4  0x0000556bc407baac in os_aio_handler (segment=3, m1=0x7f0ab1fabce8, m2=0x7f0ab1fabcf0, request=0x7f0ab1fabd20) at /data/src/10.4/storage/innobase/os/os0file.cc:5665
#5  0x0000556bc42d3985 in fil_aio_wait (segment=3) at /data/src/10.4/storage/innobase/fil/fil0fil.cc:4370
#6  0x0000556bc4176588 in io_handler_thread (arg=0x556bc5a2a818 <n+24>) at /data/src/10.4/storage/innobase/srv/srv0start.cc:325
#7  0x00007f0ac050f494 in start_thread (arg=0x7f0ab1fac700) at pthread_create.c:333
#8  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 17 (Thread 0x7f0ab17ab700 (LWP 18213)):
#0  0x00007f0ac03066ea in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x0000556bc40768ef in LinuxAIOHandler::collect (this=0x7f0ab17aac40) at /data/src/10.4/storage/innobase/os/os0file.cc:1915
#2  0x0000556bc4076e1c in LinuxAIOHandler::poll (this=0x7f0ab17aac40, m1=0x7f0ab17aace8, m2=0x7f0ab17aacf0, request=0x7f0ab17aad20) at /data/src/10.4/storage/innobase/os/os0file.cc:2060
#3  0x0000556bc4076f7c in os_aio_linux_handler (global_segment=4, m1=0x7f0ab17aace8, m2=0x7f0ab17aacf0, request=0x7f0ab17aad20) at /data/src/10.4/storage/innobase/os/os0file.cc:2114
#4  0x0000556bc407baac in os_aio_handler (segment=4, m1=0x7f0ab17aace8, m2=0x7f0ab17aacf0, request=0x7f0ab17aad20) at /data/src/10.4/storage/innobase/os/os0file.cc:5665
#5  0x0000556bc42d3985 in fil_aio_wait (segment=4) at /data/src/10.4/storage/innobase/fil/fil0fil.cc:4370
#6  0x0000556bc4176588 in io_handler_thread (arg=0x556bc5a2a820 <n+32>) at /data/src/10.4/storage/innobase/srv/srv0start.cc:325
#7  0x00007f0ac050f494 in start_thread (arg=0x7f0ab17ab700) at pthread_create.c:333
#8  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 16 (Thread 0x7f0ab0faa700 (LWP 18214)):
#0  0x00007f0ac03066ea in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x0000556bc40768ef in LinuxAIOHandler::collect (this=0x7f0ab0fa9c40) at /data/src/10.4/storage/innobase/os/os0file.cc:1915
#2  0x0000556bc4076e1c in LinuxAIOHandler::poll (this=0x7f0ab0fa9c40, m1=0x7f0ab0fa9ce8, m2=0x7f0ab0fa9cf0, request=0x7f0ab0fa9d20) at /data/src/10.4/storage/innobase/os/os0file.cc:2060
#3  0x0000556bc4076f7c in os_aio_linux_handler (global_segment=5, m1=0x7f0ab0fa9ce8, m2=0x7f0ab0fa9cf0, request=0x7f0ab0fa9d20) at /data/src/10.4/storage/innobase/os/os0file.cc:2114
#4  0x0000556bc407baac in os_aio_handler (segment=5, m1=0x7f0ab0fa9ce8, m2=0x7f0ab0fa9cf0, request=0x7f0ab0fa9d20) at /data/src/10.4/storage/innobase/os/os0file.cc:5665
#5  0x0000556bc42d3985 in fil_aio_wait (segment=5) at /data/src/10.4/storage/innobase/fil/fil0fil.cc:4370
#6  0x0000556bc4176588 in io_handler_thread (arg=0x556bc5a2a828 <n+40>) at /data/src/10.4/storage/innobase/srv/srv0start.cc:325
#7  0x00007f0ac050f494 in start_thread (arg=0x7f0ab0faa700) at pthread_create.c:333
#8  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 15 (Thread 0x7f0aabfff700 (LWP 18215)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x0000556bc408309b in os_event::timed_wait (this=0x556bc6501c40, abstime=0x7f0aabffec30) at /data/src/10.4/storage/innobase/os/os0event.cc:276
#2  0x0000556bc40833b1 in os_event::wait_time_low (this=0x556bc6501c40, time_in_usec=1000000, reset_sig_count=2) at /data/src/10.4/storage/innobase/os/os0event.cc:398
#3  0x0000556bc4083551 in os_event_wait_time_low (event=0x556bc6501c40, time_in_usec=1000000, reset_sig_count=2) at /data/src/10.4/storage/innobase/os/os0event.cc:498
#4  0x0000556bc425d86e in pc_sleep_if_needed (next_loop_time=1552604633907, sig_count=2, cur_time=1552604632907) at /data/src/10.4/storage/innobase/buf/buf0flu.cc:2637
#5  0x0000556bc425e7b4 in buf_flush_page_cleaner_coordinator () at /data/src/10.4/storage/innobase/buf/buf0flu.cc:3096
#6  0x00007f0ac050f494 in start_thread (arg=0x7f0aabfff700) at pthread_create.c:333
#7  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 14 (Thread 0x7f0aaaffd700 (LWP 18217)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x0000556bc408309b in os_event::timed_wait (this=0x556bc66d9fd0, abstime=0x7f0aaaffce80) at /data/src/10.4/storage/innobase/os/os0event.cc:276
#2  0x0000556bc40833b1 in os_event::wait_time_low (this=0x556bc66d9fd0, time_in_usec=1000000, reset_sig_count=1) at /data/src/10.4/storage/innobase/os/os0event.cc:398
#3  0x0000556bc4083551 in os_event_wait_time_low (event=0x556bc66d9fd0, time_in_usec=1000000, reset_sig_count=1) at /data/src/10.4/storage/innobase/os/os0event.cc:498
#4  0x0000556bc404f997 in lock_wait_timeout_thread () at /data/src/10.4/storage/innobase/lock/lock0wait.cc:543
#5  0x00007f0ac050f494 in start_thread (arg=0x7f0aaaffd700) at pthread_create.c:333
#6  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 13 (Thread 0x7f0aaa7fc700 (LWP 18218)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x0000556bc408309b in os_event::timed_wait (this=0x556bc6501ac0, abstime=0x7f0aaa7fbce0) at /data/src/10.4/storage/innobase/os/os0event.cc:276
#2  0x0000556bc40833b1 in os_event::wait_time_low (this=0x556bc6501ac0, time_in_usec=1000000, reset_sig_count=1) at /data/src/10.4/storage/innobase/os/os0event.cc:398
#3  0x0000556bc4083551 in os_event_wait_time_low (event=0x556bc6501ac0, time_in_usec=1000000, reset_sig_count=1) at /data/src/10.4/storage/innobase/os/os0event.cc:498
#4  0x0000556bc4172c90 in srv_error_monitor_thread () at /data/src/10.4/storage/innobase/srv/srv0srv.cc:1836
#5  0x00007f0ac050f494 in start_thread (arg=0x7f0aaa7fc700) at pthread_create.c:333
#6  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 12 (Thread 0x7f0aa9ffb700 (LWP 18219)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x0000556bc408309b in os_event::timed_wait (this=0x556bc6501b40, abstime=0x7f0aa9ffae60) at /data/src/10.4/storage/innobase/os/os0event.cc:276
#2  0x0000556bc40833b1 in os_event::wait_time_low (this=0x556bc6501b40, time_in_usec=5000000, reset_sig_count=1) at /data/src/10.4/storage/innobase/os/os0event.cc:398
#3  0x0000556bc4083551 in os_event_wait_time_low (event=0x556bc6501b40, time_in_usec=5000000, reset_sig_count=1) at /data/src/10.4/storage/innobase/os/os0event.cc:498
#4  0x0000556bc4172770 in srv_monitor_thread () at /data/src/10.4/storage/innobase/srv/srv0srv.cc:1672
#5  0x00007f0ac050f494 in start_thread (arg=0x7f0aa9ffb700) at pthread_create.c:333
#6  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 11 (Thread 0x7f0aa8ff9700 (LWP 18222)):
#0  0x00007f0ac05131c0 in __pthread_mutex_unlock_usercnt (mutex=0x7f0aa8ff8058, decr=<optimized out>) at pthread_mutex_unlock.c:55
#1  0x0000556bc3fc4c86 in OSMutex::exit (this=0x7f0aa8ff8050) at /data/src/10.4/storage/innobase/include/sync0types.h:442
#2  0x0000556bc3fcce47 in MutexDebug<TTASEventMutex<GenericPolicy> >::set (this=0x7f0aa8ff8020, mutex=0x0, filename=0x0, line=0, thread_id=18446744073709551615) at /data/src/10.4/storage/innobase/include/sync0policy.h:59
#3  0x0000556bc3fcba59 in MutexDebug<TTASEventMutex<GenericPolicy> >::enter (this=0x7f0ab8649280, mutex=..., filename=0x556bc47b1d50 "/data/src/10.4/storage/innobase/que/que0que.cc", line=615) at /data/src/10.4/storage/innobase/include/sync0policy.h:126
#4  0x0000556bc3fc9dbd in PolicyMutex<TTASEventMutex<GenericPolicy> >::enter (this=0x7f0ab8649270, n_spins=30, n_delay=4, name=0x556bc47b1d50 "/data/src/10.4/storage/innobase/que/que0que.cc", line=615) at /data/src/10.4/storage/innobase/include/ib0mutex.h:593
#5  0x0000556bc40b5647 in que_thr_node_step (thr=0x7f0a7c002400) at /data/src/10.4/storage/innobase/que/que0que.cc:615
#6  0x0000556bc40b64a6 in que_thr_step (thr=0x7f0a7c002400) at /data/src/10.4/storage/innobase/que/que0que.cc:1036
#7  0x0000556bc40b672d in que_run_threads_low (thr=0x7f0a7c002400) at /data/src/10.4/storage/innobase/que/que0que.cc:1104
#8  0x0000556bc40b691e in que_run_threads (thr=0x7f0a7c002400) at /data/src/10.4/storage/innobase/que/que0que.cc:1144
#9  0x0000556bc40b6bcb in que_eval_sql (info=0x7f0a7c000c98, sql=0x556bc4870d00 "PROCEDURE DELETE_FROM_TABLE_STATS () IS\nBEGIN\nDELETE FROM \"mysql/innodb_table_stats\" WHERE\ndatabase_name = :database_name AND\ntable_name = :table_name;\nEND;\n", reserve_dict_mutex=0, trx=0x7f0ab8649268) at /data/src/10.4/storage/innobase/que/que0que.cc:1221
#10 0x0000556bc42b2a90 in dict_stats_exec_sql (pinfo=0x7f0a7c000c98, sql=0x556bc4870d00 "PROCEDURE DELETE_FROM_TABLE_STATS () IS\nBEGIN\nDELETE FROM \"mysql/innodb_table_stats\" WHERE\ndatabase_name = :database_name AND\ntable_name = :table_name;\nEND;\n", trx=0x7f0ab8649268) at /data/src/10.4/storage/innobase/dict/dict0stats.cc:305
#11 0x0000556bc42b9ba3 in dict_stats_delete_from_table_stats (database_name=0x7f0aa8ff8320 "test", table_name=0x7f0aa8ff83f0 "#mysql50##sql-ib23") at /data/src/10.4/storage/innobase/dict/dict0stats.cc:3486
#12 0x0000556bc42b9e46 in dict_stats_drop_table (db_and_table=0x7f0a68009fa0 "test/#sql-ib23", errstr=0x7f0aa8ff89d0 "", errstr_sz=1024) at /data/src/10.4/storage/innobase/dict/dict0stats.cc:3564
#13 0x0000556bc411593e in row_drop_table_for_mysql (name=0x7f0a68009fa0 "test/#sql-ib23", trx=0x7f0ab8648140, sqlcom=SQLCOM_TRUNCATE, create_failed=false, nonatomic=true) at /data/src/10.4/storage/innobase/row/row0mysql.cc:3465
#14 0x0000556bc41138d9 in row_drop_table_for_mysql_in_background (name=0x7f0a68009fa0 "test/#sql-ib23") at /data/src/10.4/storage/innobase/row/row0mysql.cc:2625
#15 0x0000556bc4113bb9 in row_drop_tables_for_mysql_in_background () at /data/src/10.4/storage/innobase/row/row0mysql.cc:2693
#16 0x0000556bc4173518 in srv_master_do_active_tasks () at /data/src/10.4/storage/innobase/srv/srv0srv.cc:2125
#17 0x0000556bc41741a5 in srv_master_thread (arg=0x0) at /data/src/10.4/storage/innobase/srv/srv0srv.cc:2356
#18 0x00007f0ac050f494 in start_thread (arg=0x7f0aa8ff9700) at pthread_create.c:333
#19 0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 10 (Thread 0x7f0a9bfff700 (LWP 18223)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x0000556bc4083782 in os_event::wait (this=0x556bc65018c0) at /data/src/10.4/storage/innobase/os/os0event.cc:159
#2  0x0000556bc4083205 in os_event::wait_low (this=0x556bc65018c0, reset_sig_count=105) at /data/src/10.4/storage/innobase/os/os0event.cc:326
#3  0x0000556bc4083576 in os_event_wait_low (event=0x556bc65018c0, reset_sig_count=105) at /data/src/10.4/storage/innobase/os/os0event.cc:515
#4  0x0000556bc41709bd in srv_resume_thread (slot=0x556bc4fe0948 <srv_sys+392>, sig_count=105, wait=true, timeout_usec=0) at /data/src/10.4/storage/innobase/srv/srv0srv.cc:901
#5  0x0000556bc4174a6b in srv_purge_coordinator_suspend (slot=0x556bc4fe0948 <srv_sys+392>, rseg_history_len=0) at /data/src/10.4/storage/innobase/srv/srv0srv.cc:2614
#6  0x0000556bc4174d01 in srv_purge_coordinator_thread (arg=0x0) at /data/src/10.4/storage/innobase/srv/srv0srv.cc:2689
#7  0x00007f0ac050f494 in start_thread (arg=0x7f0a9bfff700) at pthread_create.c:333
#8  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 9 (Thread 0x7f0a9b7fe700 (LWP 18224)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x0000556bc4083782 in os_event::wait (this=0x556bc65019c0) at /data/src/10.4/storage/innobase/os/os0event.cc:159
#2  0x0000556bc4083205 in os_event::wait_low (this=0x556bc65019c0, reset_sig_count=190) at /data/src/10.4/storage/innobase/os/os0event.cc:326
#3  0x0000556bc4083576 in os_event_wait_low (event=0x556bc65019c0, reset_sig_count=0) at /data/src/10.4/storage/innobase/os/os0event.cc:515
#4  0x0000556bc41709bd in srv_resume_thread (slot=0x556bc4fe09b8 <srv_sys+504>, sig_count=0, wait=true, timeout_usec=0) at /data/src/10.4/storage/innobase/srv/srv0srv.cc:901
#5  0x0000556bc417465c in srv_worker_thread (arg=0x0) at /data/src/10.4/storage/innobase/srv/srv0srv.cc:2483
#6  0x00007f0ac050f494 in start_thread (arg=0x7f0a9b7fe700) at pthread_create.c:333
#7  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 8 (Thread 0x7f0a93fff700 (LWP 18225)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x0000556bc4083782 in os_event::wait (this=0x556bc6501a40) at /data/src/10.4/storage/innobase/os/os0event.cc:159
#2  0x0000556bc4083205 in os_event::wait_low (this=0x556bc6501a40, reset_sig_count=174) at /data/src/10.4/storage/innobase/os/os0event.cc:326
#3  0x0000556bc4083576 in os_event_wait_low (event=0x556bc6501a40, reset_sig_count=0) at /data/src/10.4/storage/innobase/os/os0event.cc:515
#4  0x0000556bc41709bd in srv_resume_thread (slot=0x556bc4fe09f0 <srv_sys+560>, sig_count=0, wait=true, timeout_usec=0) at /data/src/10.4/storage/innobase/srv/srv0srv.cc:901
#5  0x0000556bc417465c in srv_worker_thread (arg=0x0) at /data/src/10.4/storage/innobase/srv/srv0srv.cc:2483
#6  0x00007f0ac050f494 in start_thread (arg=0x7f0a93fff700) at pthread_create.c:333
#7  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 7 (Thread 0x7f0a9affd700 (LWP 18226)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x0000556bc4083782 in os_event::wait (this=0x556bc6501940) at /data/src/10.4/storage/innobase/os/os0event.cc:159
#2  0x0000556bc4083205 in os_event::wait_low (this=0x556bc6501940, reset_sig_count=200) at /data/src/10.4/storage/innobase/os/os0event.cc:326
#3  0x0000556bc4083576 in os_event_wait_low (event=0x556bc6501940, reset_sig_count=0) at /data/src/10.4/storage/innobase/os/os0event.cc:515
#4  0x0000556bc41709bd in srv_resume_thread (slot=0x556bc4fe0980 <srv_sys+448>, sig_count=0, wait=true, timeout_usec=0) at /data/src/10.4/storage/innobase/srv/srv0srv.cc:901
#5  0x0000556bc417465c in srv_worker_thread (arg=0x0) at /data/src/10.4/storage/innobase/srv/srv0srv.cc:2483
#6  0x00007f0ac050f494 in start_thread (arg=0x7f0a9affd700) at pthread_create.c:333
#7  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7f0a9a7fc700 (LWP 18227)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x0000556bc4083782 in os_event::wait (this=0x556bc6501bc0) at /data/src/10.4/storage/innobase/os/os0event.cc:159
#2  0x0000556bc4083205 in os_event::wait_low (this=0x556bc6501bc0, reset_sig_count=1) at /data/src/10.4/storage/innobase/os/os0event.cc:326
#3  0x0000556bc4083576 in os_event_wait_low (event=0x556bc6501bc0, reset_sig_count=0) at /data/src/10.4/storage/innobase/os/os0event.cc:515
#4  0x0000556bc42536e3 in buf_dump_thread () at /data/src/10.4/storage/innobase/buf/buf0dump.cc:833
#5  0x00007f0ac050f494 in start_thread (arg=0x7f0a9a7fc700) at pthread_create.c:333
#6  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7f0a99ffb700 (LWP 18228)):
#0  0x00007f0ac05187dd in nanosleep () at ../sysdeps/unix/syscall-template.S:84
#1  0x0000556bc4083a80 in os_thread_sleep (tm=1000000) at /data/src/10.4/storage/innobase/os/os0thread.cc:225
#2  0x0000556bc422d87e in btr_defragment_thread () at /data/src/10.4/storage/innobase/btr/btr0defragment.cc:702
#3  0x00007f0ac050f494 in start_thread (arg=0x7f0a99ffb700) at pthread_create.c:333
#4  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7f0a997fa700 (LWP 18229)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x0000556bc4083782 in os_event::wait (this=0x556bc6501cc0) at /data/src/10.4/storage/innobase/os/os0event.cc:159
#2  0x0000556bc4083205 in os_event::wait_low (this=0x556bc6501cc0, reset_sig_count=1) at /data/src/10.4/storage/innobase/os/os0event.cc:326
#3  0x0000556bc4083576 in os_event_wait_low (event=0x556bc6501cc0, reset_sig_count=0) at /data/src/10.4/storage/innobase/os/os0event.cc:515
#4  0x0000556bc423be9d in buf_resize_thread () at /data/src/10.4/storage/innobase/buf/buf0buf.cc:3152
#5  0x00007f0ac050f494 in start_thread (arg=0x7f0a997fa700) at pthread_create.c:333
#6  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7f0a98ff9700 (LWP 18230)):
#0  0x0000556bc3fc4aba in OSMutex::init (this=0x7f0a98ff8c60) at /data/src/10.4/storage/innobase/include/sync0types.h:402
#1  0x0000556bc3fccdb9 in MutexDebug<TTASEventMutex<GenericPolicy> >::init (this=0x7f0a98ff8c30, id=LATCH_ID_SRV_SYS) at /data/src/10.4/storage/innobase/include/sync0policy.h:99
#2  0x0000556bc3fcba00 in MutexDebug<TTASEventMutex<GenericPolicy> >::enter (this=0x556bc4fe0888 <srv_sys+200>, mutex=..., filename=0x556bc47fd060 "/data/src/10.4/storage/innobase/srv/srv0srv.cc", line=929) at /data/src/10.4/storage/innobase/include/sync0policy.h:122
#3  0x0000556bc3fc9dbd in PolicyMutex<TTASEventMutex<GenericPolicy> >::enter (this=0x556bc4fe0878 <srv_sys+184>, n_spins=30, n_delay=4, name=0x556bc47fd060 "/data/src/10.4/storage/innobase/srv/srv0srv.cc", line=929) at /data/src/10.4/storage/innobase/include/ib0mutex.h:593
#4  0x0000556bc4170b6c in srv_release_threads (type=SRV_MASTER, n=1) at /data/src/10.4/storage/innobase/srv/srv0srv.cc:929
#5  0x0000556bc4173019 in srv_wake_master_thread () at /data/src/10.4/storage/innobase/srv/srv0srv.cc:1942
#6  0x0000556bc417cca9 in srv_shutdown_bg_undo_sources () at /data/src/10.4/storage/innobase/srv/srv0start.cc:2426
#7  0x0000556bc3f9cf26 in thd_destructor_proxy () at /data/src/10.4/storage/innobase/handler/ha_innodb.cc:308
#8  0x0000556bc3f89a89 in pfs_spawn_thread (arg=0x556bc67411b0) at /data/src/10.4/storage/perfschema/pfs.cc:1862
#9  0x00007f0ac050f494 in start_thread (arg=0x7f0a98ff9700) at pthread_create.c:333
#10 0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7f0ab8446700 (LWP 18231)):
#0  0x00007f0abe840ef6 in sigwaitinfo () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x0000556bc37e333e in my_sigwait (set=0x7f0ab8445e30, sig=0x7f0ab8445df4, code=0x7f0ab8445df8) at /data/src/10.4/include/my_pthread.h:196
#2  0x0000556bc37e9a98 in signal_hand (arg=0x0) at /data/src/10.4/sql/mysqld.cc:3245
#3  0x0000556bc3f89a89 in pfs_spawn_thread (arg=0x556bc67a5350) at /data/src/10.4/storage/perfschema/pfs.cc:1862
#4  0x00007f0ac050f494 in start_thread (arg=0x7f0ab8446700) at pthread_create.c:333
#5  0x00007f0abe8f593f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7f0ac0927b80 (LWP 18206)):
#0  0x00007f0abe8ee233 in select () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x0000556bc442e80b in my_sleep (m_seconds=20000) at /data/src/10.4/mysys/my_sleep.c:29
#2  0x0000556bc37e6696 in close_connections () at /data/src/10.4/sql/mysqld.cc:1783
#3  0x0000556bc37ef2d5 in mysqld_main (argc=147, argv=0x556bc62c33e0) at /data/src/10.4/sql/mysqld.cc:5899
#4  0x0000556bc37e32c0 in main (argc=23, argv=0x7ffd4c59b098) at /data/src/10.4/sql/main.cc:25