(gdb) thread apply all bt

Thread 25 (Thread 0x7f8ba182b6c0 (LWP 12382) "mysqld"):
#0  0x00007f8ba9be627a in sigtimedwait () from /lib64/libc.so.6
#1  0x00000000010699cb in timer_notify_thread_func (arg=arg@entry=0x7ffe0801cd90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/mysys/posix_timers.c:89
#2  0x000000000107b3bc in pfs_spawn_thread (arg=0x34c1f60) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/perfschema/pfs.cc:2198
#3  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#4  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 24 (Thread 0x7f871509d6c0 (LWP 12389) "mysqld"):
#0  0x00007f8ba9cb900d in syscall () from /lib64/libc.so.6
#1  0x00007f8baab27277 in ?? () from /lib64/libaio.so.1
#2  0x00000000011b8a4d in LinuxAIOHandler::collect (this=this@entry=0x7f871509cbe0) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2820
#3  0x00000000011b9334 in LinuxAIOHandler::poll (this=this@entry=0x7f871509cbe0, m1=m1@entry=0x7f871509cc80, m2=m2@entry=0x7f871509cc88, request=request@entry=0x7f871509cc90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2980
#4  0x00000000011bb224 in os_aio_linux_handler (global_segment=58930616, m1=0x7f871509cc80, m2=0x7f871509cc88, request=0x7f871509cc90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:3036
#5  os_aio_handler (segment=segment@entry=0, m1=m1@entry=0x7f871509cc80, m2=m2@entry=0x7f871509cc88, request=request@entry=0x7f871509cc90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:6878
#6  0x00000000013a56b1 in fil_aio_wait (segment=segment@entry=0) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/fil/fil0fil.cc:6451
#7  0x000000000127db78 in io_handler_thread (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/srv/srv0start.cc:345
#8  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#9  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 23 (Thread 0x7f871489c6c0 (LWP 12390) "mysqld"):
#0  0x00007f8ba9cb900d in syscall () from /lib64/libc.so.6
#1  0x00007f8baab27277 in ?? () from /lib64/libaio.so.1
#2  0x00000000011b8a4d in LinuxAIOHandler::collect (this=this@entry=0x7f871489bbe0) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2820
#3  0x00000000011b9334 in LinuxAIOHandler::poll (this=this@entry=0x7f871489bbe0, m1=m1@entry=0x7f871489bc80, m2=m2@entry=0x7f871489bc88, request=request@entry=0x7f871489bc90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2980
#4  0x00000000011bb224 in os_aio_linux_handler (global_segment=59025592, m1=0x7f871489bc80, m2=0x7f871489bc88, request=0x7f871489bc90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:3036
#5  os_aio_handler (segment=segment@entry=1, m1=m1@entry=0x7f871489bc80, m2=m2@entry=0x7f871489bc88, request=request@entry=0x7f871489bc90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:6878
#6  0x00000000013a56b1 in fil_aio_wait (segment=segment@entry=1) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/fil/fil0fil.cc:6451
#7  0x000000000127db78 in io_handler_thread (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/srv/srv0start.cc:345
#8  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#9  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 22 (Thread 0x7f871409b6c0 (LWP 12391) "mysqld"):
#0  0x00007f8ba9cb900d in syscall () from /lib64/libc.so.6
#1  0x00007f8baab27277 in ?? () from /lib64/libaio.so.1
#2  0x00000000011b8a4d in LinuxAIOHandler::collect (this=this@entry=0x7f871409abe0) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2820
#3  0x00000000011b9334 in LinuxAIOHandler::poll (this=this@entry=0x7f871409abe0, m1=m1@entry=0x7f871409ac80, m2=m2@entry=0x7f871409ac88, request=request@entry=0x7f871409ac90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2980
#4  0x00000000011bb224 in os_aio_linux_handler (global_segment=55149576, m1=0x7f871409ac80, m2=0x7f871409ac88, request=0x7f871409ac90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:3036
#5  os_aio_handler (segment=segment@entry=2, m1=m1@entry=0x7f871409ac80, m2=m2@entry=0x7f871409ac88, request=request@entry=0x7f871409ac90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:6878
#6  0x00000000013a56b1 in fil_aio_wait (segment=segment@entry=2) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/fil/fil0fil.cc:6451
#7  0x000000000127db78 in io_handler_thread (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/srv/srv0start.cc:345
#8  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#9  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 21 (Thread 0x7f871389a6c0 (LWP 12392) "mysqld"):
#0  0x00007f8ba9cb900d in syscall () from /lib64/libc.so.6
#1  0x00007f8baab27277 in ?? () from /lib64/libaio.so.1
#2  0x00000000011b8a4d in LinuxAIOHandler::collect (this=this@entry=0x7f8713899be0) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2820
#3  0x00000000011b9334 in LinuxAIOHandler::poll (this=this@entry=0x7f8713899be0, m1=m1@entry=0x7f8713899c80, m2=m2@entry=0x7f8713899c88, request=request@entry=0x7f8713899c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2980
#4  0x00000000011bb224 in os_aio_linux_handler (global_segment=55149576, m1=0x7f8713899c80, m2=0x7f8713899c88, request=0x7f8713899c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:3036
#5  os_aio_handler (segment=segment@entry=3, m1=m1@entry=0x7f8713899c80, m2=m2@entry=0x7f8713899c88, request=request@entry=0x7f8713899c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:6878
#6  0x00000000013a56b1 in fil_aio_wait (segment=segment@entry=3) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/fil/fil0fil.cc:6451
#7  0x000000000127db78 in io_handler_thread (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/srv/srv0start.cc:345
#8  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#9  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6
--Type <RET> for more, q to quit, c to continue without paging--c

Thread 20 (Thread 0x7f87130996c0 (LWP 12393) "mysqld"):
#0  0x00007f8ba9cb900d in syscall () from /lib64/libc.so.6
#1  0x00007f8baab27277 in ?? () from /lib64/libaio.so.1
#2  0x00000000011b8a4d in LinuxAIOHandler::collect (this=this@entry=0x7f8713098be0) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2820
#3  0x00000000011b9334 in LinuxAIOHandler::poll (this=this@entry=0x7f8713098be0, m1=m1@entry=0x7f8713098c80, m2=m2@entry=0x7f8713098c88, request=request@entry=0x7f8713098c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2980
#4  0x00000000011bb224 in os_aio_linux_handler (global_segment=55149576, m1=0x7f8713098c80, m2=0x7f8713098c88, request=0x7f8713098c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:3036
#5  os_aio_handler (segment=segment@entry=4, m1=m1@entry=0x7f8713098c80, m2=m2@entry=0x7f8713098c88, request=request@entry=0x7f8713098c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:6878
#6  0x00000000013a56b1 in fil_aio_wait (segment=segment@entry=4) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/fil/fil0fil.cc:6451
#7  0x000000000127db78 in io_handler_thread (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/srv/srv0start.cc:345
#8  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#9  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 19 (Thread 0x7f87128986c0 (LWP 12394) "mysqld"):
#0  0x00007f8ba9cb900d in syscall () from /lib64/libc.so.6
#1  0x00007f8baab27277 in ?? () from /lib64/libaio.so.1
#2  0x00000000011b8a4d in LinuxAIOHandler::collect (this=this@entry=0x7f8712897be0) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2820
#3  0x00000000011b9334 in LinuxAIOHandler::poll (this=this@entry=0x7f8712897be0, m1=m1@entry=0x7f8712897c80, m2=m2@entry=0x7f8712897c88, request=request@entry=0x7f8712897c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2980
#4  0x00000000011bb224 in os_aio_linux_handler (global_segment=55149576, m1=0x7f8712897c80, m2=0x7f8712897c88, request=0x7f8712897c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:3036
#5  os_aio_handler (segment=segment@entry=5, m1=m1@entry=0x7f8712897c80, m2=m2@entry=0x7f8712897c88, request=request@entry=0x7f8712897c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:6878
#6  0x00000000013a56b1 in fil_aio_wait (segment=segment@entry=5) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/fil/fil0fil.cc:6451
#7  0x000000000127db78 in io_handler_thread (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/srv/srv0start.cc:345
#8  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#9  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 18 (Thread 0x7f87120976c0 (LWP 12395) "mysqld"):
#0  0x00007f8ba9cb900d in syscall () from /lib64/libc.so.6
#1  0x00007f8baab27277 in ?? () from /lib64/libaio.so.1
#2  0x00000000011b8a4d in LinuxAIOHandler::collect (this=this@entry=0x7f8712096be0) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2820
#3  0x00000000011b9334 in LinuxAIOHandler::poll (this=this@entry=0x7f8712096be0, m1=m1@entry=0x7f8712096c80, m2=m2@entry=0x7f8712096c88, request=request@entry=0x7f8712096c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2980
#4  0x00000000011bb224 in os_aio_linux_handler (global_segment=59120568, m1=0x7f8712096c80, m2=0x7f8712096c88, request=0x7f8712096c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:3036
#5  os_aio_handler (segment=segment@entry=6, m1=m1@entry=0x7f8712096c80, m2=m2@entry=0x7f8712096c88, request=request@entry=0x7f8712096c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:6878
#6  0x00000000013a56b1 in fil_aio_wait (segment=segment@entry=6) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/fil/fil0fil.cc:6451
#7  0x000000000127db78 in io_handler_thread (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/srv/srv0start.cc:345
#8  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#9  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 17 (Thread 0x7f87118966c0 (LWP 12396) "mysqld"):
#0  0x00007f8ba9cb900d in syscall () from /lib64/libc.so.6
#1  0x00007f8baab27277 in ?? () from /lib64/libaio.so.1
#2  0x00000000011b8a4d in LinuxAIOHandler::collect (this=this@entry=0x7f8711895be0) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2820
#3  0x00000000011b9334 in LinuxAIOHandler::poll (this=this@entry=0x7f8711895be0, m1=m1@entry=0x7f8711895c80, m2=m2@entry=0x7f8711895c88, request=request@entry=0x7f8711895c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2980
#4  0x00000000011bb224 in os_aio_linux_handler (global_segment=59120568, m1=0x7f8711895c80, m2=0x7f8711895c88, request=0x7f8711895c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:3036
#5  os_aio_handler (segment=segment@entry=7, m1=m1@entry=0x7f8711895c80, m2=m2@entry=0x7f8711895c88, request=request@entry=0x7f8711895c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:6878
#6  0x00000000013a56b1 in fil_aio_wait (segment=segment@entry=7) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/fil/fil0fil.cc:6451
#7  0x000000000127db78 in io_handler_thread (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/srv/srv0start.cc:345
#8  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#9  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x7f87110956c0 (LWP 12397) "mysqld"):
#0  0x00007f8ba9cb900d in syscall () from /lib64/libc.so.6
#1  0x00007f8baab27277 in ?? () from /lib64/libaio.so.1
#2  0x00000000011b8a4d in LinuxAIOHandler::collect (this=this@entry=0x7f8711094be0) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2820
#3  0x00000000011b9334 in LinuxAIOHandler::poll (this=this@entry=0x7f8711094be0, m1=m1@entry=0x7f8711094c80, m2=m2@entry=0x7f8711094c88, request=request@entry=0x7f8711094c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2980
#4  0x00000000011bb224 in os_aio_linux_handler (global_segment=59120568, m1=0x7f8711094c80, m2=0x7f8711094c88, request=0x7f8711094c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:3036
#5  os_aio_handler (segment=segment@entry=8, m1=m1@entry=0x7f8711094c80, m2=m2@entry=0x7f8711094c88, request=request@entry=0x7f8711094c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:6878
#6  0x00000000013a56b1 in fil_aio_wait (segment=segment@entry=8) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/fil/fil0fil.cc:6451
#7  0x000000000127db78 in io_handler_thread (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/srv/srv0start.cc:345
#8  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#9  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7f87108946c0 (LWP 12398) "mysqld"):
#0  0x00007f8ba9cb900d in syscall () from /lib64/libc.so.6
#1  0x00007f8baab27277 in ?? () from /lib64/libaio.so.1
#2  0x00000000011b8a4d in LinuxAIOHandler::collect (this=this@entry=0x7f8710893be0) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2820
#3  0x00000000011b9334 in LinuxAIOHandler::poll (this=this@entry=0x7f8710893be0, m1=m1@entry=0x7f8710893c80, m2=m2@entry=0x7f8710893c88, request=request@entry=0x7f8710893c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:2980
#4  0x00000000011bb224 in os_aio_linux_handler (global_segment=59120568, m1=0x7f8710893c80, m2=0x7f8710893c88, request=0x7f8710893c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:3036
#5  os_aio_handler (segment=segment@entry=9, m1=m1@entry=0x7f8710893c80, m2=m2@entry=0x7f8710893c88, request=request@entry=0x7f8710893c90) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0file.cc:6878
#6  0x00000000013a56b1 in fil_aio_wait (segment=segment@entry=9) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/fil/fil0fil.cc:6451
#7  0x000000000127db78 in io_handler_thread (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/srv/srv0start.cc:345
#8  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#9  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7f87100936c0 (LWP 12399) "mysqld"):
#0  0x00007f8ba9c364be in ?? () from /lib64/libc.so.6
#1  0x00007f8ba9c38e80 in pthread_cond_wait () from /lib64/libc.so.6
#2  0x00000000011bcdf8 in os_event::wait (this=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/include/os0event.h:167
#3  os_event::wait_low (this=0x3571228, reset_sig_count=1) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0event.cc:142
#4  0x00000000011bd565 in os_event_wait_low (event=<optimized out>, reset_sig_count=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0event.cc:385
#5  0x0000000001346541 in buf_flush_page_cleaner_coordinator (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3246
#6  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#7  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7f870f8926c0 (LWP 12400) "mysqld"):
#0  0x00007f8ba9c364be in ?? () from /lib64/libc.so.6
#1  0x00007f8ba9c38e80 in pthread_cond_wait () from /lib64/libc.so.6
#2  0x00000000011bcdf8 in os_event::wait (this=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/include/os0event.h:167
#3  os_event::wait_low (this=0x3924238, reset_sig_count=1) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0event.cc:142
#4  0x00000000011bd565 in os_event_wait_low (event=<optimized out>, reset_sig_count=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0event.cc:385
#5  0x0000000001345c0a in buf_flush_page_cleaner_worker (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3565
#6  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#7  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7f870f0916c0 (LWP 12401) "mysqld"):
#0  0x00007f8ba9c364be in ?? () from /lib64/libc.so.6
#1  0x00007f8ba9c38e80 in pthread_cond_wait () from /lib64/libc.so.6
#2  0x00000000011bcdf8 in os_event::wait (this=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/include/os0event.h:167
#3  os_event::wait_low (this=0x3924238, reset_sig_count=1) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0event.cc:142
#4  0x00000000011bd565 in os_event_wait_low (event=<optimized out>, reset_sig_count=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0event.cc:385
#5  0x0000000001345c0a in buf_flush_page_cleaner_worker (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3565
#6  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#7  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7f870e8906c0 (LWP 12402) "mysqld"):
#0  0x00007f8ba9c364be in ?? () from /lib64/libc.so.6
#1  0x00007f8ba9c38e80 in pthread_cond_wait () from /lib64/libc.so.6
#2  0x00000000011bcdf8 in os_event::wait (this=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/include/os0event.h:167
#3  os_event::wait_low (this=0x3924238, reset_sig_count=1) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0event.cc:142
#4  0x00000000011bd565 in os_event_wait_low (event=<optimized out>, reset_sig_count=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0event.cc:385
#5  0x0000000001345c0a in buf_flush_page_cleaner_worker (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3565
#6  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#7  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7f870e08f6c0 (LWP 12403) "mysqld"):
#0  0x00007f8ba9c84455 in clock_nanosleep () from /lib64/libc.so.6
#1  0x00007f8ba9c8fe57 in nanosleep () from /lib64/libc.so.6
#2  0x00000000011bdbdd in os_thread_sleep (tm=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0thread.cc:311
#3  0x0000000001344fd2 in buf_lru_manager_sleep_if_needed (next_loop_time=899056) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3606
#4  buf_lru_manager (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3700
#5  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#6  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7f870d88e6c0 (LWP 12404) "mysqld"):
#0  0x00007f8ba9c84455 in clock_nanosleep () from /lib64/libc.so.6
#1  0x00007f8ba9c8fe57 in nanosleep () from /lib64/libc.so.6
#2  0x00000000011bdbdd in os_thread_sleep (tm=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0thread.cc:311
#3  0x0000000001344fd2 in buf_lru_manager_sleep_if_needed (next_loop_time=899056) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3606
#4  buf_lru_manager (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3700
#5  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#6  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f870d08d6c0 (LWP 12405) "mysqld"):
#0  0x00007f8ba9c84455 in clock_nanosleep () from /lib64/libc.so.6
#1  0x00007f8ba9c8fe57 in nanosleep () from /lib64/libc.so.6
#2  0x00000000011bdbdd in os_thread_sleep (tm=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0thread.cc:311
#3  0x0000000001344fd2 in buf_lru_manager_sleep_if_needed (next_loop_time=899055) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3606
#4  buf_lru_manager (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3700
#5  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#6  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f870c88c6c0 (LWP 12406) "mysqld"):
#0  0x00007f8ba9c84455 in clock_nanosleep () from /lib64/libc.so.6
#1  0x00007f8ba9c8fe57 in nanosleep () from /lib64/libc.so.6
#2  0x00000000011bdbdd in os_thread_sleep (tm=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0thread.cc:311
#3  0x0000000001344fd2 in buf_lru_manager_sleep_if_needed (next_loop_time=899056) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3606
#4  buf_lru_manager (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3700
#5  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#6  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f8707fff6c0 (LWP 12407) "mysqld"):
#0  0x00007f8ba9c84455 in clock_nanosleep () from /lib64/libc.so.6
#1  0x00007f8ba9c8fe57 in nanosleep () from /lib64/libc.so.6
#2  0x00000000011bdbdd in os_thread_sleep (tm=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0thread.cc:311
#3  0x0000000001344fd2 in buf_lru_manager_sleep_if_needed (next_loop_time=899056) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3606
#4  buf_lru_manager (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3700
#5  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#6  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f87077fe6c0 (LWP 12408) "mysqld"):
#0  0x00007f8ba9c84455 in clock_nanosleep () from /lib64/libc.so.6
#1  0x00007f8ba9c8fe57 in nanosleep () from /lib64/libc.so.6
#2  0x00000000011bdbdd in os_thread_sleep (tm=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0thread.cc:311
#3  0x0000000001344fd2 in buf_lru_manager_sleep_if_needed (next_loop_time=899055) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3606
#4  buf_lru_manager (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3700
#5  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#6  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f8706ffd6c0 (LWP 12409) "mysqld"):
#0  0x00007f8ba9c84455 in clock_nanosleep () from /lib64/libc.so.6
#1  0x00007f8ba9c8fe57 in nanosleep () from /lib64/libc.so.6
#2  0x00000000011bdbdd in os_thread_sleep (tm=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0thread.cc:311
#3  0x0000000001344fd2 in buf_lru_manager_sleep_if_needed (next_loop_time=899056) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3606
#4  buf_lru_manager (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3700
#5  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#6  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f87067fc6c0 (LWP 12410) "mysqld"):
#0  0x00007f8ba9c84455 in clock_nanosleep () from /lib64/libc.so.6
#1  0x00007f8ba9c8fe57 in nanosleep () from /lib64/libc.so.6
#2  0x00000000011bdbdd in os_thread_sleep (tm=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0thread.cc:311
#3  0x0000000001344fd2 in buf_lru_manager_sleep_if_needed (next_loop_time=899054) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3606
#4  buf_lru_manager (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:3700
#5  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#6  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f8703ff16c0 (LWP 12411) "mysqld"):
#0  0x00007f8ba9c364be in ?? () from /lib64/libc.so.6
#1  0x00007f8ba9c39195 in pthread_cond_timedwait () from /lib64/libc.so.6
#2  0x00000000011bccb0 in os_event::timed_wait (this=this@entry=0x3571128, abstime=abstime@entry=0x7f8703ff0de0) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0event.cc:92
#3  0x00000000011bd3e0 in os_event::wait_time_low (this=0x3571128, time_in_usec=<optimized out>, reset_sig_count=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0event.cc:264
#4  0x0000000001274af3 in srv_monitor_thread (arg=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/srv/srv0srv.cc:1952
#5  0x00007f8ba9c39c62 in ?? () from /lib64/libc.so.6
#6  0x00007f8ba9cbafa4 in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f8baaa26f80 (LWP 12354) "mysqld"):
#0  0x00007f8ba9c84455 in clock_nanosleep () from /lib64/libc.so.6
#1  0x00007f8ba9c8fe57 in nanosleep () from /lib64/libc.so.6
#2  0x00000000011bdbdd in os_thread_sleep (tm=tm@entry=10000) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/os/os0thread.cc:311
#3  0x000000000133f392 in buf_flush_wait_flushed (new_oldest=new_oldest@entry=55213605454167) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/buf/buf0flu.cc:2182
#4  0x0000000001185146 in log_preflush_pool_modified_pages (new_oldest=55213605454167) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/log/log0log.cc:1946
#5  log_checkpoint_margin () at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/log/log0log.cc:2403
#6  log_check_margins () at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/log/log0log.cc:2505
#7  0x00000000011e1844 in log_free_check () at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/include/log0log.ic:533
#8  que_run_threads_low (thr=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/que/que0que.cc:1115
#9  que_run_threads (thr=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/que/que0que.cc:1161
#10 0x00000000011e2716 in que_eval_sql (info=info@entry=0x0, sql=sql@entry=0x174b320 <row_merge_drop_temp_indexes()::sql> "PROCEDURE DROP_TEMP_INDEXES_PROC () IS\nixid CHAR;\nfound INT;\nDECLARE CURSOR index_cur IS\n SELECT ID FROM SYS_INDEXES\n WHERE SUBSTR(NAME,0,1)='\377'\nFOR UPDATE;\nBEGIN\nfound := 1;\nOPEN index_cur;\nWHILE fou"..., reserve_dict_mutex=reserve_dict_mutex@entry=0, trx=trx@entry=0x7f8ba0901c70) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/que/que0que.cc:1238
#11 0x0000000001214d0f in row_merge_drop_temp_indexes () at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/row/row0merge.cc:3846
#12 0x0000000001195289 in recv_recovery_rollback_active () at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/log/log0recv.cc:4388
#13 0x000000000128bc39 in innobase_start_or_create_for_mysql () at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/srv/srv0start.cc:2784
#14 0x000000000111f3f4 in innobase_init (p=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/storage/innobase/handler/ha_innodb.cc:4844
#15 0x000000000078af55 in ha_initialize_handlerton (plugin=0x35546b8) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/sql/handler.cc:881
#16 0x0000000000dbc034 in plugin_initialize (plugin=plugin@entry=0x35546b8) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/sql/sql_plugin.cc:1260
#17 0x0000000000dbe337 in plugin_register_builtin_and_init_core_se (argc=argc@entry=0x1d61da0 <remaining_argc>, argv=0x33c42a8) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/sql/sql_plugin.cc:1623
#18 0x0000000000e7affb in init_server_components () at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/sql/mysqld.cc:4379
#19 0x0000000000e7c843 in mysqld_main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/percona-server-5.7.44-52.1.x86_64/sql/mysqld.cc:5174
#20 0x00007f8ba9bcf17c in ?? () from /lib64/libc.so.6
#21 0x00007f8ba9bcf239 in __libc_start_main () from /lib64/libc.so.6
#22 0x000000000077d3c5 in _start () at ../sysdeps/x86_64/start.S:115