# gdb -ex "set pagination 0" -ex "thread apply all bt" --batch -p $(pidof mysqld) [New LWP 412] [New LWP 449] [New LWP 450] [New LWP 451] [New LWP 453] [New LWP 454] [New LWP 455] [New LWP 456] [New LWP 457] [New LWP 458] [New LWP 459] [New LWP 460] [New LWP 496] [New LWP 497] [New LWP 498] [New LWP 499] [New LWP 500] [New LWP 501] [New LWP 502] [New LWP 503] [New LWP 504] [New LWP 505] [New LWP 506] [New LWP 507] [New LWP 510] [New LWP 511] [New LWP 513] [New LWP 724] [New LWP 1102] [New LWP 1153] [New LWP 1154] [New LWP 1155] [New LWP 1239] [New LWP 13386] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". 0x00007f938978574d in poll () at ../sysdeps/unix/syscall-template.S:84 84 ../sysdeps/unix/syscall-template.S: No such file or directory. Thread 35 (Thread 0x7f9368670700 (LWP 13386)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000000000d1850f in Per_thread_connection_handler::block_until_new_connection() () #2 0x0000000000d18701 in handle_connection () #3 0x0000000000ec9834 in pfs_spawn_thread () #4 0x00007f938a2fc6ba in start_thread (arg=0x7f9368670700) at pthread_create.c:333 #5 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 34 (Thread 0x7f93686a1700 (LWP 1239)): #0 0x00007f938978574d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x000000000126ff3e in vio_io_wait () #2 0x000000000126fff8 in vio_socket_io_wait () #3 0x00000000012700f2 in vio_read () #4 0x0000000000ba44a3 in ?? () #5 0x0000000000ba47a3 in ?? () #6 0x0000000000ba5654 in my_net_read () #7 0x0000000000bb19fc in Protocol_classic::get_command(COM_DATA*, enum_server_command*) () #8 0x0000000000c563a0 in do_command(THD*) () #9 0x0000000000d18848 in handle_connection () #10 0x0000000000ec9834 in pfs_spawn_thread () #11 0x00007f938a2fc6ba in start_thread (arg=0x7f93686a1700) at pthread_create.c:333 #12 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 33 (Thread 0x7f93686d2700 (LWP 1155)): #0 0x00007f938978574d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x000000000126ff3e in vio_io_wait () #2 0x000000000126fff8 in vio_socket_io_wait () #3 0x00000000012700f2 in vio_read () #4 0x0000000000ba44a3 in ?? () #5 0x0000000000ba47a3 in ?? () #6 0x0000000000ba5654 in my_net_read () #7 0x0000000000bb19fc in Protocol_classic::get_command(COM_DATA*, enum_server_command*) () #8 0x0000000000c563a0 in do_command(THD*) () #9 0x0000000000d18848 in handle_connection () #10 0x0000000000ec9834 in pfs_spawn_thread () #11 0x00007f938a2fc6ba in start_thread (arg=0x7f93686d2700) at pthread_create.c:333 #12 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 32 (Thread 0x7f9368703700 (LWP 1154)): #0 0x0000000000e8ee77 in my_getsystime () #1 0x0000000000b9f288 in MDL_context::acquire_lock(MDL_request*, unsigned long) () #2 0x0000000000bf4af1 in open_table(THD*, TABLE_LIST*, Open_table_context*) () #3 0x0000000000bfb9db in open_tables(THD*, TABLE_LIST**, unsigned int*, unsigned int, Prelocking_strategy*) () #4 0x0000000000bfc189 in open_tables_for_query(THD*, TABLE_LIST*, unsigned int) () #5 0x0000000000753b35 in ?? () #6 0x0000000000c5195b in mysql_execute_command(THD*, bool) () #7 0x0000000000c53ead in mysql_parse(THD*, Parser_state*) () #8 0x0000000000c54fea in dispatch_command(THD*, COM_DATA const*, enum_server_command) () #9 0x0000000000c564a7 in do_command(THD*) () #10 0x0000000000d18848 in handle_connection () #11 0x0000000000ec9834 in pfs_spawn_thread () #12 0x00007f938a2fc6ba in start_thread (arg=0x7f9368703700) at pthread_create.c:333 #13 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 31 (Thread 0x7f9368734700 (LWP 1153)): #0 0x00007f938978574d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x000000000126ff3e in vio_io_wait () #2 0x000000000126fff8 in vio_socket_io_wait () #3 0x00000000012700f2 in vio_read () #4 0x0000000000ba44a3 in ?? () #5 0x0000000000ba47a3 in ?? () #6 0x0000000000ba5654 in my_net_read () #7 0x0000000000bb19fc in Protocol_classic::get_command(COM_DATA*, enum_server_command*) () #8 0x0000000000c563a0 in do_command(THD*) () #9 0x0000000000d18848 in handle_connection () #10 0x0000000000ec9834 in pfs_spawn_thread () #11 0x00007f938a2fc6ba in start_thread (arg=0x7f9368734700) at pthread_create.c:333 #12 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 30 (Thread 0x7f9368765700 (LWP 1102)): #0 0x00007f938978574d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x000000000126ff3e in vio_io_wait () #2 0x000000000126fff8 in vio_socket_io_wait () #3 0x00000000012700f2 in vio_read () #4 0x0000000000ba44a3 in ?? () #5 0x0000000000ba47a3 in ?? () #6 0x0000000000ba5654 in my_net_read () #7 0x0000000000bb19fc in Protocol_classic::get_command(COM_DATA*, enum_server_command*) () #8 0x0000000000c563a0 in do_command(THD*) () #9 0x0000000000d18848 in handle_connection () #10 0x0000000000ec9834 in pfs_spawn_thread () #11 0x00007f938a2fc6ba in start_thread (arg=0x7f9368765700) at pthread_create.c:333 #12 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 29 (Thread 0x7f9368796700 (LWP 724)): #0 0x00007f938978574d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x000000000126ff3e in vio_io_wait () #2 0x000000000126fff8 in vio_socket_io_wait () #3 0x00000000012700f2 in vio_read () #4 0x0000000000ba44a3 in ?? () #5 0x0000000000ba47a3 in ?? () #6 0x0000000000ba5654 in my_net_read () #7 0x0000000000bb19fc in Protocol_classic::get_command(COM_DATA*, enum_server_command*) () #8 0x0000000000c563a0 in do_command(THD*) () #9 0x0000000000d18848 in handle_connection () #10 0x0000000000ec9834 in pfs_spawn_thread () #11 0x00007f938a2fc6ba in start_thread (arg=0x7f9368796700) at pthread_create.c:333 #12 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 28 (Thread 0x7f93687c7700 (LWP 513)): #0 0x00007f938978574d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x000000000126ff3e in vio_io_wait () #2 0x000000000126fff8 in vio_socket_io_wait () #3 0x00000000012700f2 in vio_read () #4 0x0000000000ba44a3 in ?? () #5 0x0000000000ba47a3 in ?? () #6 0x0000000000ba5654 in my_net_read () #7 0x0000000000bb19fc in Protocol_classic::get_command(COM_DATA*, enum_server_command*) () #8 0x0000000000c563a0 in do_command(THD*) () #9 0x0000000000d18848 in handle_connection () #10 0x0000000000ec9834 in pfs_spawn_thread () #11 0x00007f938a2fc6ba in start_thread (arg=0x7f93687c7700) at pthread_create.c:333 #12 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 27 (Thread 0x7f9355ffb700 (LWP 511)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000000000df426f in compress_gtid_table () #2 0x0000000000ec9834 in pfs_spawn_thread () #3 0x00007f938a2fc6ba in start_thread (arg=0x7f9355ffb700) at pthread_create.c:333 #4 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 26 (Thread 0x7f93687f8700 (LWP 510)): #0 do_sigwait (sig=0x7f93687f7dcc, set=) at ../sysdeps/unix/sysv/linux/sigwait.c:64 #1 __sigwait (set=, sig=0x7f93687f7dcc) at ../sysdeps/unix/sysv/linux/sigwait.c:96 #2 0x000000000077dc8b in signal_hand () #3 0x0000000000ec9834 in pfs_spawn_thread () #4 0x00007f938a2fc6ba in start_thread (arg=0x7f93687f8700) at pthread_create.c:333 #5 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 25 (Thread 0x7f93567fc700 (LWP 507)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000000000fc7e76 in os_event::wait_low(long) () #2 0x000000000111ff66 in buf_resize_thread () #3 0x00007f938a2fc6ba in start_thread (arg=0x7f93567fc700) at pthread_create.c:333 #4 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 24 (Thread 0x7f9356ffd700 (LWP 506)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x0000000000fc7d32 in os_event::timed_wait(timespec const*) () #2 0x0000000000fc7fb1 in os_event::wait_time_low(unsigned long, long) () #3 0x00000000010debca in ib_wqueue_timedwait(ib_wqueue_t*, long) () #4 0x00000000011de106 in fts_optimize_thread(void*) () #5 0x00007f938a2fc6ba in start_thread (arg=0x7f9356ffd700) at pthread_create.c:333 #6 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 23 (Thread 0x7f93577fe700 (LWP 505)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x0000000000fc7d32 in os_event::timed_wait(timespec const*) () #2 0x0000000000fc7fb1 in os_event::wait_time_low(unsigned long, long) () #3 0x00000000011893e9 in dict_stats_thread () #4 0x00007f938a2fc6ba in start_thread (arg=0x7f93577fe700) at pthread_create.c:333 #5 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 22 (Thread 0x7f9357fff700 (LWP 504)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000000000fc7e76 in os_event::wait_low(long) () #2 0x000000000112db3c in buf_dump_thread () #3 0x00007f938a2fc6ba in start_thread (arg=0x7f9357fff700) at pthread_create.c:333 #4 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 21 (Thread 0x7f9368ff9700 (LWP 503)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000000000fc7e76 in os_event::wait_low(long) () #2 0x000000000107586c in srv_worker_thread () #3 0x00007f938a2fc6ba in start_thread (arg=0x7f9368ff9700) at pthread_create.c:333 #4 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 20 (Thread 0x7f93697fa700 (LWP 502)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000000000fc7e76 in os_event::wait_low(long) () #2 0x000000000107586c in srv_worker_thread () #3 0x00007f938a2fc6ba in start_thread (arg=0x7f93697fa700) at pthread_create.c:333 #4 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 19 (Thread 0x7f9369ffb700 (LWP 501)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000000000fc7e76 in os_event::wait_low(long) () #2 0x000000000107586c in srv_worker_thread () #3 0x00007f938a2fc6ba in start_thread (arg=0x7f9369ffb700) at pthread_create.c:333 #4 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 18 (Thread 0x7f936a7fc700 (LWP 500)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000000000fc7e76 in os_event::wait_low(long) () #2 0x00000000010787ac in srv_purge_coordinator_thread () #3 0x00007f938a2fc6ba in start_thread (arg=0x7f936a7fc700) at pthread_create.c:333 #4 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 17 (Thread 0x7f936affd700 (LWP 499)): #0 0x00007f938a305c1d in nanosleep () at ../sysdeps/unix/syscall-template.S:84 #1 0x0000000000fc83ff in os_thread_sleep(unsigned long) () #2 0x000000000107b783 in srv_master_thread () #3 0x00007f938a2fc6ba in start_thread (arg=0x7f936affd700) at pthread_create.c:333 #4 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 16 (Thread 0x7f936b7fe700 (LWP 498)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x0000000000fc7d32 in os_event::timed_wait(timespec const*) () #2 0x0000000000fc7fb1 in os_event::wait_time_low(unsigned long, long) () #3 0x00000000010740ff in srv_monitor_thread () #4 0x00007f938a2fc6ba in start_thread (arg=0x7f936b7fe700) at pthread_create.c:333 #5 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 15 (Thread 0x7f936bfff700 (LWP 497)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x0000000000fc7d32 in os_event::timed_wait(timespec const*) () #2 0x0000000000fc7fb1 in os_event::wait_time_low(unsigned long, long) () #3 0x0000000001079cb0 in srv_error_monitor_thread () #4 0x00007f938a2fc6ba in start_thread (arg=0x7f936bfff700) at pthread_create.c:333 #5 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 14 (Thread 0x7f9370cdd700 (LWP 496)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x0000000000fc7d32 in os_event::timed_wait(timespec const*) () #2 0x0000000000fc7fb1 in os_event::wait_time_low(unsigned long, long) () #3 0x0000000000f91bb6 in lock_wait_timeout_thread () #4 0x00007f938a2fc6ba in start_thread (arg=0x7f9370cdd700) at pthread_create.c:333 #5 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 13 (Thread 0x7f9371704700 (LWP 460)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x0000000000fc7d32 in os_event::timed_wait(timespec const*) () #2 0x0000000000fc7fb1 in os_event::wait_time_low(unsigned long, long) () #3 0x000000000113a41f in buf_flush_page_cleaner_coordinator () #4 0x00007f938a2fc6ba in start_thread (arg=0x7f9371704700) at pthread_create.c:333 #5 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 12 (Thread 0x7f9371f05700 (LWP 459)): #0 0x00007f938b39d64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000000000fbc1f8 in LinuxAIOHandler::collect() () #2 0x0000000000fc0ecc in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () #3 0x0000000000fc616d in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #4 0x0000000001191d6f in fil_aio_wait(unsigned long) () #5 0x000000000107cf40 in io_handler_thread () #6 0x00007f938a2fc6ba in start_thread (arg=0x7f9371f05700) at pthread_create.c:333 #7 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 11 (Thread 0x7f9372706700 (LWP 458)): #0 0x00007f938b39d64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000000000fbc1f8 in LinuxAIOHandler::collect() () #2 0x0000000000fc0ecc in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () #3 0x0000000000fc616d in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #4 0x0000000001191d6f in fil_aio_wait(unsigned long) () #5 0x000000000107cf40 in io_handler_thread () #6 0x00007f938a2fc6ba in start_thread (arg=0x7f9372706700) at pthread_create.c:333 #7 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 10 (Thread 0x7f9372f07700 (LWP 457)): #0 0x00007f938b39d64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000000000fbc1f8 in LinuxAIOHandler::collect() () #2 0x0000000000fc0ecc in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () #3 0x0000000000fc616d in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #4 0x0000000001191d6f in fil_aio_wait(unsigned long) () #5 0x000000000107cf40 in io_handler_thread () #6 0x00007f938a2fc6ba in start_thread (arg=0x7f9372f07700) at pthread_create.c:333 #7 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 9 (Thread 0x7f9373708700 (LWP 456)): #0 0x00007f938b39d64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000000000fbc1f8 in LinuxAIOHandler::collect() () #2 0x0000000000fc0ecc in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () #3 0x0000000000fc616d in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #4 0x0000000001191d6f in fil_aio_wait(unsigned long) () #5 0x000000000107cf40 in io_handler_thread () #6 0x00007f938a2fc6ba in start_thread (arg=0x7f9373708700) at pthread_create.c:333 #7 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 8 (Thread 0x7f9373f09700 (LWP 455)): #0 0x00007f938b39d64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000000000fbc1f8 in LinuxAIOHandler::collect() () #2 0x0000000000fc0ecc in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () #3 0x0000000000fc616d in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #4 0x0000000001191d6f in fil_aio_wait(unsigned long) () #5 0x000000000107cf40 in io_handler_thread () #6 0x00007f938a2fc6ba in start_thread (arg=0x7f9373f09700) at pthread_create.c:333 #7 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 7 (Thread 0x7f937470a700 (LWP 454)): #0 0x00007f938b39d64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000000000fbc1f8 in LinuxAIOHandler::collect() () #2 0x0000000000fc0ecc in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () #3 0x0000000000fc616d in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #4 0x0000000001191d6f in fil_aio_wait(unsigned long) () #5 0x000000000107cf40 in io_handler_thread () #6 0x00007f938a2fc6ba in start_thread (arg=0x7f937470a700) at pthread_create.c:333 #7 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 6 (Thread 0x7f9374f0b700 (LWP 453)): #0 0x00007f938b39d64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000000000fbc1f8 in LinuxAIOHandler::collect() () #2 0x0000000000fc0ecc in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () #3 0x0000000000fc616d in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #4 0x0000000001191d6f in fil_aio_wait(unsigned long) () #5 0x000000000107cf40 in io_handler_thread () #6 0x00007f938a2fc6ba in start_thread (arg=0x7f9374f0b700) at pthread_create.c:333 #7 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 5 (Thread 0x7f937570c700 (LWP 451)): #0 0x00007f938b39d64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000000000fbc1f8 in LinuxAIOHandler::collect() () #2 0x0000000000fc0ecc in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () #3 0x0000000000fc616d in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #4 0x0000000001191d6f in fil_aio_wait(unsigned long) () #5 0x000000000107cf40 in io_handler_thread () #6 0x00007f938a2fc6ba in start_thread (arg=0x7f937570c700) at pthread_create.c:333 #7 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 4 (Thread 0x7f9375f0d700 (LWP 450)): #0 0x00007f938b39d64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000000000fbc1f8 in LinuxAIOHandler::collect() () #2 0x0000000000fc0ecc in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () #3 0x0000000000fc616d in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #4 0x0000000001191d6f in fil_aio_wait(unsigned long) () #5 0x000000000107cf40 in io_handler_thread () #6 0x00007f938a2fc6ba in start_thread (arg=0x7f9375f0d700) at pthread_create.c:333 #7 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 3 (Thread 0x7f937670e700 (LWP 449)): #0 0x00007f938b39d64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000000000fbc1f8 in LinuxAIOHandler::collect() () #2 0x0000000000fc0ecc in LinuxAIOHandler::poll(fil_node_t**, void**, IORequest*) () #3 0x0000000000fc616d in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #4 0x0000000001191d6f in fil_aio_wait(unsigned long) () #5 0x000000000107cf40 in io_handler_thread () #6 0x00007f938a2fc6ba in start_thread (arg=0x7f937670e700) at pthread_create.c:333 #7 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 2 (Thread 0x7f9383f30700 (LWP 412)): #0 0x00007f93896c0b26 in __GI___sigwaitinfo (set=, info=0x7f9383f2fe30) at ../sysdeps/unix/sysv/linux/sigwaitinfo.c:56 #1 0x0000000000e9d62b in ?? () #2 0x0000000000ec9834 in pfs_spawn_thread () #3 0x00007f938a2fc6ba in start_thread (arg=0x7f9383f30700) at pthread_create.c:333 #4 0x00007f938979141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 1 (Thread 0x7f938b7b3740 (LWP 349)): #0 0x00007f938978574d in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x0000000000d1a947 in Mysqld_socket_listener::listen_for_connection_event() () #2 0x0000000000785b40 in mysqld_main(int, char**) () #3 0x00007f93896aa830 in __libc_start_main (main=0x761ff0
, argc=1, argv=0x7ffe28083ed8, init=, fini=, rtld_fini=, stack_end=0x7ffe28083ec8) at ../csu/libc-start.c:291 #4 0x000000000077ab99 in _start ()