10.5.3>SET SESSION session_track_system_variables="*";

Query OK, 0 rows affected (0.000 sec)

10.5.3>SET SESSION max_relay_log_size=3*1024*1024;

Query OK, 0 rows affected (0.000 sec)

10.5.3>SHOW VARIABLES;  #Hangs

Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

0x000014b6ea62cbf9 in __GI___poll (fds=fds@entry=0x7fffdb15b190, nfds=nfds@entry=2, 

    timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29

(gdb) set pagination off

(gdb) thread apply all bt

Thread 13 (Thread 0x14b6cbfff700 (LWP 57617)):

#0  0x000014b6eb241f85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x14b6cbffed80, expected=0, futex_word=0x14b6e9b9922c) at ../sysdeps/unix/sysv/linux/futex-internal.h:205

#1  __pthread_cond_wait_common (abstime=0x14b6cbffed80, mutex=0x14b6e9843b10, cond=0x14b6e9b99200) at pthread_cond_wait.c:539

#2  __pthread_cond_timedwait (cond=0x14b6e9b99200, mutex=0x14b6e9843b10, abstime=0x14b6cbffed80) at pthread_cond_wait.c:667

#3  0x0000560be4799d76 in __gthread_cond_timedwait (__abs_timeout=0x14b6cbffed80, __mutex=<optimized out>, __cond=0x14b6e9b99200) at /usr/include/x86_64-linux-gnu/c++/7/bits/gthr-default.h:871

#4  std::condition_variable::__wait_until_impl<std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (__atime=..., __lock=..., this=0x14b6e9b99200) at /usr/include/c++/7/condition_variable:178

#5  std::condition_variable::wait_until<std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (__atime=..., __lock=..., this=0x14b6e9b99200) at /usr/include/c++/7/condition_variable:106

#6  std::condition_variable::wait_for<long, std::ratio<1l, 1000l> > (__rtime=..., __lock=..., this=0x14b6e9b99200) at /usr/include/c++/7/condition_variable:143

#7  tpool::thread_pool_generic::wait_for_tasks (this=this@entry=0x14b6e9843a00, lk=..., thread_data=thread_data@entry=0x14b6e9b99200) at /test/10.5_opt/tpool/tpool_generic.cc:418

#8  0x0000560be479a300 in tpool::thread_pool_generic::get_task (this=this@entry=0x14b6e9843a00, thread_var=thread_var@entry=0x14b6e9b99200, t=t@entry=0x14b6cbffee28) at /test/10.5_opt/tpool/tpool_generic.cc:471

#9  0x0000560be479bbad in tpool::thread_pool_generic::worker_main (this=0x14b6e9843a00, thread_var=0x14b6e9b99200) at /test/10.5_opt/tpool/tpool_generic.cc:516

#10 0x000014b6ead646df in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6

#11 0x000014b6eb23b6db in start_thread (arg=0x14b6cbfff700) at pthread_create.c:463

#12 0x000014b6ea63988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x14b6ca9fe700 (LWP 57616)):

#0  0x000014b6eb241f85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x14b6ca9fdd80, expected=0, futex_word=0x14b6e9b997a8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205

#1  __pthread_cond_wait_common (abstime=0x14b6ca9fdd80, mutex=0x14b6e9843b10, cond=0x14b6e9b99780) at pthread_cond_wait.c:539

#2  __pthread_cond_timedwait (cond=0x14b6e9b99780, mutex=0x14b6e9843b10, abstime=0x14b6ca9fdd80) at pthread_cond_wait.c:667

#3  0x0000560be4799d76 in __gthread_cond_timedwait (__abs_timeout=0x14b6ca9fdd80, __mutex=<optimized out>, __cond=0x14b6e9b99780) at /usr/include/x86_64-linux-gnu/c++/7/bits/gthr-default.h:871

#4  std::condition_variable::__wait_until_impl<std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (__atime=..., __lock=..., this=0x14b6e9b99780) at /usr/include/c++/7/condition_variable:178

#5  std::condition_variable::wait_until<std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (__atime=..., __lock=..., this=0x14b6e9b99780) at /usr/include/c++/7/condition_variable:106

#6  std::condition_variable::wait_for<long, std::ratio<1l, 1000l> > (__rtime=..., __lock=..., this=0x14b6e9b99780) at /usr/include/c++/7/condition_variable:143

#7  tpool::thread_pool_generic::wait_for_tasks (this=this@entry=0x14b6e9843a00, lk=..., thread_data=thread_data@entry=0x14b6e9b99780) at /test/10.5_opt/tpool/tpool_generic.cc:418

#8  0x0000560be479a300 in tpool::thread_pool_generic::get_task (this=this@entry=0x14b6e9843a00, thread_var=thread_var@entry=0x14b6e9b99780, t=t@entry=0x14b6ca9fde28) at /test/10.5_opt/tpool/tpool_generic.cc:471

#9  0x0000560be479bbad in tpool::thread_pool_generic::worker_main (this=0x14b6e9843a00, thread_var=0x14b6e9b99780) at /test/10.5_opt/tpool/tpool_generic.cc:516

#10 0x000014b6ead646df in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6

#11 0x000014b6eb23b6db in start_thread (arg=0x14b6ca9fe700) at pthread_create.c:463

#12 0x000014b6ea63988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x14b6ebdc9700 (LWP 57112)):

#0  __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135

#1  0x000014b6eb23e154 in __GI___pthread_mutex_lock (mutex=0x560be536c0a0 <LOCK_global_system_variables>) at ../nptl/pthread_mutex_lock.c:133

#2  0x0000560be3f8fa35 in inline_mysql_mutex_lock (that=that@entry=0x560be536c0a0 <LOCK_global_system_variables>, src_line=src_line@entry=1247, src_file=0x560be497cdb0 "/test/10.5_opt/sql/sql_class.cc") at /test/10.5_opt/include/mysql/psi/mysql_thread.h:765

#3  0x0000560be3f954c4 in THD::init (this=this@entry=0x14b6cb813018) at /test/10.5_opt/sql/sql_class.cc:1247

#4  0x0000560be3f9a729 in THD::THD (this=0x14b6cb813018, id=<optimized out>, is_wsrep_applier=<optimized out>) at /test/10.5_opt/sql/sql_class.cc:844

#5  0x0000560be40cfe6c in CONNECT::create_thd (this=this@entry=0x14b6e9832ad8, thd=thd@entry=0x0) at /test/10.5_opt/sql/sql_connect.cc:1539

#6  0x0000560be40cff7e in do_handle_one_connection (connect=connect@entry=0x14b6e9832ad8, put_in_cache=put_in_cache@entry=true) at /test/10.5_opt/sql/sql_connect.cc:1363

#7  0x0000560be40d0494 in handle_one_connection (arg=arg@entry=0x14b6e9832ad8) at /test/10.5_opt/sql/sql_connect.cc:1319

#8  0x0000560be443c5ea in pfs_spawn_thread (arg=0x14b6e984b218) at /test/10.5_opt/storage/perfschema/pfs.cc:2201

#9  0x000014b6eb23b6db in start_thread (arg=0x14b6ebdc9700) at pthread_create.c:463

#10 0x000014b6ea63988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x14b6ebe14700 (LWP 55695)):

#0  __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135

#1  0x000014b6eb23e154 in __GI___pthread_mutex_lock (mutex=mutex@entry=0x560be536c0a0 <LOCK_global_system_variables>) at ../nptl/pthread_mutex_lock.c:133

#2  0x0000560be3ff1d40 in inline_mysql_mutex_lock (src_file=0x560be49808c0 "/test/10.5_opt/sql/sql_plugin.cc", src_line=3054, that=<optimized out>) at /test/10.5_opt/include/mysql/psi/mysql_thread.h:765

#3  sync_dynamic_session_variables (thd=thd@entry=0x14b6c7412018, global_lock=global_lock@entry=true) at /test/10.5_opt/sql/sql_plugin.cc:3054

#4  0x0000560be405489d in fill_variables (thd=0x14b6c7412018, tables=0x14b6c74473e8, cond=<optimized out>) at /test/10.5_opt/sql/sql_show.cc:7778

#5  0x0000560be40586d5 in get_schema_tables_result (join=join@entry=0x14b6c7447d68, executed_place=executed_place@entry=PROCESSED_BY_JOIN_EXEC) at /test/10.5_opt/sql/sql_show.cc:8653

#6  0x0000560be403f26d in JOIN::exec_inner (this=this@entry=0x14b6c7447d68) at /test/10.5_opt/sql/sql_select.cc:4421

#7  0x0000560be403f8d7 in JOIN::exec (this=this@entry=0x14b6c7447d68) at /test/10.5_opt/sql/sql_select.cc:4245

#8  0x0000560be403dc22 in mysql_select (thd=thd@entry=0x14b6c7412018, tables=0x14b6c74473e8, fields=..., conds=0x0, og_num=<optimized out>, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2684619520, result=0x14b6c7447d40, unit=0x14b6c7415e68, select_lex=0x14b6c7416668) at /test/10.5_opt/sql/sql_select.cc:4669

#9  0x0000560be403e5e1 in handle_select (thd=thd@entry=0x14b6c7412018, lex=lex@entry=0x14b6c7415da0, result=result@entry=0x14b6c7447d40, setup_tables_done_option=setup_tables_done_option@entry=0) at /test/10.5_opt/sql/sql_select.cc:417

#10 0x0000560be3fe51c1 in execute_sqlcom_select (thd=thd@entry=0x14b6c7412018, all_tables=0x14b6c74473e8) at /test/10.5_opt/sql/sql_parse.cc:6172

#11 0x0000560be3fe10e2 in mysql_execute_command (thd=thd@entry=0x14b6c7412018) at /test/10.5_opt/sql/sql_parse.cc:3901

#12 0x0000560be3fe827c in mysql_parse (thd=0x14b6c7412018, rawbuf=<optimized out>, length=14, parser_state=0x14b6ebe134d0, is_com_multi=<optimized out>, is_next_command=<optimized out>) at /test/10.5_opt/sql/sql_parse.cc:7957

#13 0x0000560be3fdd8a5 in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x14b6c7412018, packet=packet@entry=0x14b6c743a019 "SHOW VARIABLES", packet_length=packet_length@entry=14, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /test/10.5_opt/sql/sql_parse.cc:1839

#14 0x0000560be3fdbb36 in do_command (thd=0x14b6c7412018) at /test/10.5_opt/sql/sql_parse.cc:1358

#15 0x0000560be40d02ee in do_handle_one_connection (connect=<optimized out>, connect@entry=0x14b6e98329b8, put_in_cache=put_in_cache@entry=true) at /test/10.5_opt/sql/sql_connect.cc:1422

#16 0x0000560be40d0494 in handle_one_connection (arg=arg@entry=0x14b6e98329b8) at /test/10.5_opt/sql/sql_connect.cc:1319

#17 0x0000560be443c5ea in pfs_spawn_thread (arg=0x14b6e984b018) at /test/10.5_opt/storage/perfschema/pfs.cc:2201

#18 0x000014b6eb23b6db in start_thread (arg=0x14b6ebe14700) at pthread_create.c:463

#19 0x000014b6ea63988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x14b6ebe5f700 (LWP 55693)):

#0  0x000014b6eb2419f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560be536eb4c <COND_slave_background+44>) at ../sysdeps/unix/sysv/linux/futex-internal.h:88

#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x560be536bfe0 <LOCK_slave_background>, cond=0x560be536eb20 <COND_slave_background>) at pthread_cond_wait.c:502

#2  __pthread_cond_wait (cond=0x560be536eb20 <COND_slave_background>, mutex=0x560be536bfe0 <LOCK_slave_background>) at pthread_cond_wait.c:655

#3  0x0000560be3f376cf in inline_mysql_cond_wait (that=<optimized out>, mutex=<optimized out>, src_file=0x560be497a07d "/test/10.5_opt/sql/slave.cc", src_line=525) at /test/10.5_opt/include/mysql/psi/mysql_thread.h:1231

#4  handle_slave_background (arg=arg@entry=0x0) at /test/10.5_opt/sql/slave.cc:525

#5  0x0000560be443c5ea in pfs_spawn_thread (arg=0x14b6e984ae18) at /test/10.5_opt/storage/perfschema/pfs.cc:2201

#6  0x000014b6eb23b6db in start_thread (arg=0x14b6ebe5f700) at pthread_create.c:463

#7  0x000014b6ea63988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x14b6ebeaa700 (LWP 55692)):

#0  0x000014b6ea55826c in __GI___sigtimedwait (set=<optimized out>, set@entry=0x14b6ebea9cf0, info=info@entry=0x14b6ebea9d70, timeout=timeout@entry=0x0) at ../sysdeps/unix/sysv/linux/sigtimedwait.c:42

#1  0x000014b6ea5582e7 in __GI___sigwaitinfo (set=set@entry=0x14b6ebea9cf0, info=info@entry=0x14b6ebea9d70) at ../sysdeps/unix/sysv/linux/sigwaitinfo.c:25

#2  0x0000560be3f1982b in my_sigwait (code=<synthetic pointer>, sig=0x14b6ebea9ce8, set=0x14b6ebea9cf0) at /test/10.5_opt/include/my_pthread.h:196

#3  signal_hand (arg=arg@entry=0x0) at /test/10.5_opt/sql/mysqld.cc:3092

#4  0x0000560be443c5ea in pfs_spawn_thread (arg=0x14b6e984a618) at /test/10.5_opt/storage/perfschema/pfs.cc:2201

#5  0x000014b6eb23b6db in start_thread (arg=0x14b6ebeaa700) at pthread_create.c:463

#6  0x000014b6ea63988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x14b6cabff700 (LWP 55686)):

#0  0x000014b6eb241f85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x14b6cabfed80, expected=0, futex_word=0x14b6e9b99828) at ../sysdeps/unix/sysv/linux/futex-internal.h:205

#1  __pthread_cond_wait_common (abstime=0x14b6cabfed80, mutex=0x14b6e9843b10, cond=0x14b6e9b99800) at pthread_cond_wait.c:539

#2  __pthread_cond_timedwait (cond=0x14b6e9b99800, mutex=0x14b6e9843b10, abstime=0x14b6cabfed80) at pthread_cond_wait.c:667

#3  0x0000560be4799d76 in __gthread_cond_timedwait (__abs_timeout=0x14b6cabfed80, __mutex=<optimized out>, __cond=0x14b6e9b99800) at /usr/include/x86_64-linux-gnu/c++/7/bits/gthr-default.h:871

#4  std::condition_variable::__wait_until_impl<std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (__atime=..., __lock=..., this=0x14b6e9b99800) at /usr/include/c++/7/condition_variable:178

#5  std::condition_variable::wait_until<std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (__atime=..., __lock=..., this=0x14b6e9b99800) at /usr/include/c++/7/condition_variable:106

#6  std::condition_variable::wait_for<long, std::ratio<1l, 1000l> > (__rtime=..., __lock=..., this=0x14b6e9b99800) at /usr/include/c++/7/condition_variable:143

#7  tpool::thread_pool_generic::wait_for_tasks (this=this@entry=0x14b6e9843a00, lk=..., thread_data=thread_data@entry=0x14b6e9b99800) at /test/10.5_opt/tpool/tpool_generic.cc:418

#8  0x0000560be479a300 in tpool::thread_pool_generic::get_task (this=this@entry=0x14b6e9843a00, thread_var=thread_var@entry=0x14b6e9b99800, t=t@entry=0x14b6cabfee28) at /test/10.5_opt/tpool/tpool_generic.cc:471

#9  0x0000560be479bbad in tpool::thread_pool_generic::worker_main (this=0x14b6e9843a00, thread_var=0x14b6e9b99800) at /test/10.5_opt/tpool/tpool_generic.cc:516

#10 0x000014b6ead646df in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6

#11 0x000014b6eb23b6db in start_thread (arg=0x14b6cabff700) at pthread_create.c:463

#12 0x000014b6ea63988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x14b6cb7ff700 (LWP 55684)):

#0  0x000014b6eb241f85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x14b6cb7fed80, expected=0, futex_word=0x14b6e9b9992c) at ../sysdeps/unix/sysv/linux/futex-internal.h:205

#1  __pthread_cond_wait_common (abstime=0x14b6cb7fed80, mutex=0x14b6e9843b10, cond=0x14b6e9b99900) at pthread_cond_wait.c:539

#2  __pthread_cond_timedwait (cond=0x14b6e9b99900, mutex=0x14b6e9843b10, abstime=0x14b6cb7fed80) at pthread_cond_wait.c:667

#3  0x0000560be4799d76 in __gthread_cond_timedwait (__abs_timeout=0x14b6cb7fed80, __mutex=<optimized out>, __cond=0x14b6e9b99900) at /usr/include/x86_64-linux-gnu/c++/7/bits/gthr-default.h:871

#4  std::condition_variable::__wait_until_impl<std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (__atime=..., __lock=..., this=0x14b6e9b99900) at /usr/include/c++/7/condition_variable:178

#5  std::condition_variable::wait_until<std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (__atime=..., __lock=..., this=0x14b6e9b99900) at /usr/include/c++/7/condition_variable:106

#6  std::condition_variable::wait_for<long, std::ratio<1l, 1000l> > (__rtime=..., __lock=..., this=0x14b6e9b99900) at /usr/include/c++/7/condition_variable:143

#7  tpool::thread_pool_generic::wait_for_tasks (this=this@entry=0x14b6e9843a00, lk=..., thread_data=thread_data@entry=0x14b6e9b99900) at /test/10.5_opt/tpool/tpool_generic.cc:418

#8  0x0000560be479a300 in tpool::thread_pool_generic::get_task (this=this@entry=0x14b6e9843a00, thread_var=thread_var@entry=0x14b6e9b99900, t=t@entry=0x14b6cb7fee28) at /test/10.5_opt/tpool/tpool_generic.cc:471

#9  0x0000560be479bbad in tpool::thread_pool_generic::worker_main (this=0x14b6e9843a00, thread_var=0x14b6e9b99900) at /test/10.5_opt/tpool/tpool_generic.cc:516

#10 0x000014b6ead646df in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6

#11 0x000014b6eb23b6db in start_thread (arg=0x14b6cb7ff700) at pthread_create.c:463

#12 0x000014b6ea63988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x14b6cc7ff700 (LWP 55681)):

#0  0x000014b6eb241f85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x14b6cc7feb80, expected=0, futex_word=0x14b6e9b55cfc) at ../sysdeps/unix/sysv/linux/futex-internal.h:205

#1  __pthread_cond_wait_common (abstime=0x14b6cc7feb80, mutex=0x14b6e9b55ca8, cond=0x14b6e9b55cd0) at pthread_cond_wait.c:539

#2  __pthread_cond_timedwait (cond=cond@entry=0x14b6e9b55cd0, mutex=mutex@entry=0x14b6e9b55ca8, abstime=abstime@entry=0x14b6cc7feb80) at pthread_cond_wait.c:667

#3  0x0000560be456b6d2 in os_event::timed_wait (this=this@entry=0x14b6e9b55c98, abstime=abstime@entry=0x14b6cc7feb80) at /test/10.5_opt/storage/innobase/os/os0event.cc:275

#4  0x0000560be456bc91 in os_event::wait_time_low (reset_sig_count=2, time_in_usec=1000000, this=0x14b6e9b55c98) at /test/10.5_opt/storage/innobase/os/os0event.cc:385

#5  os_event_wait_time_low (event=0x14b6e9b55c98, time_in_usec=time_in_usec@entry=1000000, reset_sig_count=reset_sig_count@entry=2) at /test/10.5_opt/storage/innobase/os/os0event.cc:485

#6  0x0000560be46ba7ab in pc_sleep_if_needed (cur_time=9488233, sig_count=2, next_loop_time=9489233) at /test/10.5_opt/storage/innobase/buf/buf0flu.cc:2552

#7  buf_flush_page_cleaner () at /test/10.5_opt/storage/innobase/buf/buf0flu.cc:2840

#8  0x000014b6eb23b6db in start_thread (arg=0x14b6cc7ff700) at pthread_create.c:463

#9  0x000014b6ea63988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x14b6d77ff700 (LWP 55680)):

#0  0x000014b6eb45363a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1

#1  0x0000560be479d6c5 in tpool::aio_linux::getevent_thread_routine (aio=0x14b6e9b52040) at /test/10.5_opt/tpool/aio_linux.cc:53

#2  0x000014b6ead646df in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6

#3  0x000014b6eb23b6db in start_thread (arg=0x14b6d77ff700) at pthread_create.c:463

#4  0x000014b6ea63988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x14b6e2758700 (LWP 55679)):

#0  0x000014b6eb241f85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x14b6e2757d60, expected=0, futex_word=0x560be5ba3d88 <COND_checkpoint+40>) at ../sysdeps/unix/sysv/linux/futex-internal.h:205

#1  __pthread_cond_wait_common (abstime=0x14b6e2757d60, mutex=0x560be5ba3da0 <LOCK_checkpoint>, cond=0x560be5ba3d60 <COND_checkpoint>) at pthread_cond_wait.c:539

#2  __pthread_cond_timedwait (cond=cond@entry=0x560be5ba3d60 <COND_checkpoint>, mutex=mutex@entry=0x560be5ba3da0 <LOCK_checkpoint>, abstime=abstime@entry=0x14b6e2757d60) at pthread_cond_wait.c:667

#3  0x0000560be43cd449 in inline_mysql_cond_timedwait (src_file=0x560be4aebb38 "/test/10.5_opt/storage/maria/ma_servicethread.c", src_line=116, abstime=0x14b6e2757d60, mutex=0x560be5ba3da0 <LOCK_checkpoint>, that=0x560be5ba3d60 <COND_checkpoint>) at /test/10.5_opt/include/mysql/psi/mysql_thread.h:1268

#4  my_service_thread_sleep (control=control@entry=0x560be52de3a0 <checkpoint_control>, sleep_time=sleep_time@entry=30000000000) at /test/10.5_opt/storage/maria/ma_servicethread.c:115

#5  0x0000560be43c14f0 in ma_checkpoint_background (arg=0x1e) at /test/10.5_opt/storage/maria/ma_checkpoint.c:707

#6  0x000014b6eb23b6db in start_thread (arg=0x14b6e2758700) at pthread_create.c:463

#7  0x000014b6ea63988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x14b6ebee0700 (LWP 55678)):

#0  0x000014b6eb241f85 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x14b6ebedfdf0, expected=0, futex_word=0x560be5c49ae8 <COND_timer+40>) at ../sysdeps/unix/sysv/linux/futex-internal.h:205

#1  __pthread_cond_wait_common (abstime=0x14b6ebedfdf0, mutex=0x560be5c49b00 <LOCK_timer>, cond=0x560be5c49ac0 <COND_timer>) at pthread_cond_wait.c:539

#2  __pthread_cond_timedwait (cond=cond@entry=0x560be5c49ac0 <COND_timer>, mutex=mutex@entry=0x560be5c49b00 <LOCK_timer>, abstime=abstime@entry=0x14b6ebedfdf0) at pthread_cond_wait.c:667

#3  0x0000560be4819532 in inline_mysql_cond_timedwait (that=0x560be5c49ac0 <COND_timer>, mutex=0x560be5c49b00 <LOCK_timer>, src_file=0x560be4b5b098 "/test/10.5_opt/mysys/thr_timer.c", src_line=321, abstime=0x14b6ebedfdf0) at /test/10.5_opt/include/mysql/psi/mysql_thread.h:1268

#4  timer_handler (arg=<optimized out>) at /test/10.5_opt/mysys/thr_timer.c:321

#5  0x000014b6eb23b6db in start_thread (arg=0x14b6ebee0700) at pthread_create.c:463

#6  0x000014b6ea63988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x14b6ebee17c0 (LWP 55674)):

#0  0x000014b6ea62cbf9 in __GI___poll (fds=fds@entry=0x7fffdb15b190, nfds=nfds@entry=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29

#1  0x000014b6ea64cc1e in __poll_chk (fds=fds@entry=0x7fffdb15b190, nfds=nfds@entry=2, timeout=timeout@entry=-1, fdslen=fdslen@entry=24) at poll_chk.c:27

#2  0x0000560be3f22287 in poll (__timeout=-1, __nfds=2, __fds=0x7fffdb15b190) at /usr/include/x86_64-linux-gnu/bits/poll2.h:41

#3  handle_connections_sockets () at /test/10.5_opt/sql/mysqld.cc:6267

#4  0x0000560be3f233b8 in mysqld_main (argc=<optimized out>, argv=<optimized out>) at /test/10.5_opt/sql/mysqld.cc:5729

#5  0x000014b6ea539b97 in __libc_start_main (main=0x560be3ee5b40 <main(int, char**)>, argc=10, argv=0x7fffdb15b558, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffdb15b548) at ../csu/libc-start.c:310

#6  0x0000560be3f174ca in _start ()

$ sudo strace -if -p 55674

strace: Process 55674 attached with 12 threads

[pid 58275] [000014b6eb24510d] futex(0x560be536c0a0, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 58033] [000014b6eb241f85] restart_syscall(<... resuming interrupted futex ...> <unfinished ...>

[pid 57112] [000014b6eb24510d] futex(0x560be536c0a0, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55695] [000014b6eb24510d] futex(0x560be536c0a0, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55693] [000014b6eb2419f3] futex(0x560be536eb4c, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>

[pid 55692] [000014b6ea55826c] rt_sigtimedwait([HUP QUIT ALRM TERM TSTP],  <unfinished ...>

[pid 55686] [000014b6eb241f85] restart_syscall(<... resuming interrupted futex ...> <unfinished ...>

[pid 55681] [000014b6eb241f85] restart_syscall(<... resuming interrupted futex ...> <unfinished ...>

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55679] [000014b6eb241f85] restart_syscall(<... resuming interrupted futex ...> <unfinished ...>

[pid 55678] [000014b6eb241f85] restart_syscall(<... resuming interrupted futex ...> <unfinished ...>

[pid 55674] [000014b6ea62cbf9] restart_syscall(<... resuming interrupted restart_syscall ...> <unfinished ...>

[pid 55678] [000014b6eb241f85] <... restart_syscall resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194459, tv_nsec=864239000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194459, tv_nsec=989966000}, 0xffffffff) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b99828, FUTEX_WAKE_PRIVATE, 1) = 1

[pid 55686] [000014b6eb241f85] <... restart_syscall resumed> ) = 0

[pid 55686] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55678] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb24510d] <... futex resumed> ) = -1 EAGAIN (Resource temporarily unavailable)

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55686] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55686] [000014b6eb241f85] futex(0x14b6e9b9982c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194519, tv_nsec=990474986}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194460, tv_nsec=28221000}, 0xffffffff <unfinished ...>

[pid 55681] [000014b6eb241f85] <... restart_syscall resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55681] [000014b6eb2451aa] futex(0x14b6e9b55ca8, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55681] [000014b6eb241f85] futex(0x14b6e9b55cfc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194461, tv_nsec=23288000}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b9982c, FUTEX_WAKE_PRIVATE, 1) = 1

[pid 55686] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b99228, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55678] [000014b6eb24241c] <... futex resumed> ) = 1

[pid 55678] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb241f85] <... restart_syscall resumed> ) = 0

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 1

[pid 55686] [000014b6eb24510d] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55686] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb241f85] futex(0x14b6e9b9922c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194520, tv_nsec=28803608}, 0xffffffff <unfinished ...>

[pid 55686] [000014b6eb241f85] futex(0x14b6e9b99828, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194520, tv_nsec=28808954}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194460, tv_nsec=264516000}, 0xffffffff) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194460, tv_nsec=664785000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194461, tv_nsec=28802000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55681] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55681] [000014b6eb2451aa] futex(0x14b6e9b55ca8, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55681] [000014b6eb241f85] futex(0x14b6e9b55cfc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194462, tv_nsec=23803000}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b99828, FUTEX_WAKE_PRIVATE, 1) = 1

[pid 55686] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b9922c, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55678] [000014b6eb24241c] <... futex resumed> ) = 1

[pid 58033] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb24510d] <... futex resumed> ) = -1 EAGAIN (Resource temporarily unavailable)

[pid 58033] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb24510d] futex(0x560be5c49b00, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55686] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb24510d] <... futex resumed> ) = -1 EAGAIN (Resource temporarily unavailable)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb241f85] futex(0x14b6e9b9982c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194521, tv_nsec=29437839}, 0xffffffff <unfinished ...>

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb241f85] futex(0x14b6e9b99228, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194521, tv_nsec=29509936}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194461, tv_nsec=65090000}, 0xffffffff) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194461, tv_nsec=465350000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194461, tv_nsec=865626000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194462, tv_nsec=29436000}, 0xffffffff <unfinished ...>

[pid 55681] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55681] [000014b6eb2451aa] futex(0x14b6e9b55ca8, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55681] [000014b6eb241f85] futex(0x14b6e9b55cfc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194463, tv_nsec=24234000}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b99228, FUTEX_WAKE_PRIVATE, 1) = 1

[pid 58033] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b9982c, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55686] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] <... futex resumed> ) = 1

[pid 55686] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55678] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb24510d] <... futex resumed> ) = -1 EAGAIN (Resource temporarily unavailable)

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 1

[pid 58033] [000014b6eb24510d] <... futex resumed> ) = 0

[pid 55686] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb241f85] futex(0x14b6e9b99828, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194522, tv_nsec=30062397}, 0xffffffff <unfinished ...>

[pid 58033] [000014b6eb241f85] futex(0x14b6e9b9922c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194522, tv_nsec=30071555}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194462, tv_nsec=265879000}, 0xffffffff) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194462, tv_nsec=666136000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194463, tv_nsec=30060000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55681] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55681] [000014b6eb2451aa] futex(0x14b6e9b55ca8, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55681] [000014b6eb241f85] futex(0x14b6e9b55cfc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194464, tv_nsec=24624000}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b9922c, FUTEX_WAKE_PRIVATE, 1) = 1

[pid 58033] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b99828, FUTEX_WAKE_PRIVATE, 1) = 1

[pid 58033] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55686] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 58033] [000014b6eb24510d] <... futex resumed> ) = -1 EAGAIN (Resource temporarily unavailable)

[pid 55678] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55686] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb241f85] futex(0x14b6e9b99228, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194523, tv_nsec=30603348}, 0xffffffff <unfinished ...>

[pid 55686] [000014b6eb241f85] futex(0x14b6e9b9982c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194523, tv_nsec=30606120}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194463, tv_nsec=66410000}, 0xffffffff) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194463, tv_nsec=466640000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194463, tv_nsec=866933000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194464, tv_nsec=30602000}, 0xffffffff <unfinished ...>

[pid 55681] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55681] [000014b6eb2451aa] futex(0x14b6e9b55ca8, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55681] [000014b6eb241f85] futex(0x14b6e9b55cfc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194465, tv_nsec=24946000}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b9982c, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] <... futex resumed> ) = 1

[pid 55686] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55678] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb24510d] <... futex resumed> ) = -1 EAGAIN (Resource temporarily unavailable)

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55686] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b99228, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] <... futex resumed> ) = 1

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55686] [000014b6eb241f85] futex(0x14b6e9b99828, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194524, tv_nsec=31140293}, 0xffffffff <unfinished ...>

[pid 58033] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb241f85] futex(0x14b6e9b9922c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194524, tv_nsec=31191770}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194464, tv_nsec=267221000}, 0xffffffff) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194464, tv_nsec=667471000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194464, tv_nsec=990473000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b9922c, FUTEX_WAKE_PRIVATE, 1) = 1

[pid 58033] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb241f85] futex(0x14b6e9b99228, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194524, tv_nsec=990963940}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194465, tv_nsec=31123000}, 0xffffffff <unfinished ...>

[pid 55681] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55681] [000014b6eb2451aa] futex(0x14b6e9b55ca8, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55681] [000014b6eb241f85] futex(0x14b6e9b55cfc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194466, tv_nsec=25307000}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b99228, FUTEX_WAKE_PRIVATE, 1) = 1

[pid 58033] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b99828, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55678] [000014b6eb24241c] <... futex resumed> ) = 1

[pid 55686] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb24510d] <... futex resumed> ) = 0

[pid 55686] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb24510d] futex(0x560be5c49b00, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 1

[pid 58033] [000014b6eb24510d] futex(0x560be5c49b00, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb24510d] <... futex resumed> ) = -1 EAGAIN (Resource temporarily unavailable)

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 1

[pid 58033] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb24510d] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55686] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb241f85] futex(0x14b6e9b9922c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194525, tv_nsec=31856264}, 0xffffffff <unfinished ...>

[pid 55686] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194465, tv_nsec=67714000}, 0xffffffff <unfinished ...>

[pid 55686] [000014b6eb241f85] futex(0x14b6e9b9982c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194525, tv_nsec=31910626}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194465, tv_nsec=467933000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194465, tv_nsec=868214000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194466, tv_nsec=31854000}, 0xffffffff <unfinished ...>

[pid 55681] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55681] [000014b6eb2451aa] futex(0x14b6e9b55ca8, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55681] [000014b6eb241f85] futex(0x14b6e9b55cfc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194467, tv_nsec=25722000}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b9982c, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] <... futex resumed> ) = 1

[pid 55686] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55678] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1) = 1

[pid 55686] [000014b6eb24510d] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b9922c, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55678] [000014b6eb24241c] <... futex resumed> ) = 1

[pid 58033] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb24510d] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55686] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 1

[pid 58033] [000014b6eb24510d] futex(0x560be5c49b00, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55686] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb24510d] <... futex resumed> ) = -1 EAGAIN (Resource temporarily unavailable)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb241f85] futex(0x14b6e9b99828, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194526, tv_nsec=32608276}, 0xffffffff <unfinished ...>

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb241f85] futex(0x14b6e9b99228, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194526, tv_nsec=32695727}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194466, tv_nsec=268471000}, 0xffffffff) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194466, tv_nsec=668721000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194467, tv_nsec=32606000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55681] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55681] [000014b6eb2451aa] futex(0x14b6e9b55ca8, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55681] [000014b6eb241f85] futex(0x14b6e9b55cfc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194468, tv_nsec=26135000}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b99228, FUTEX_WAKE_PRIVATE, 1) = 1

[pid 58033] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b99828, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55686] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] <... futex resumed> ) = 1

[pid 55686] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable)

[pid 55678] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 1

[pid 58033] [000014b6eb24510d] <... futex resumed> ) = 0

[pid 55686] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55686] [000014b6eb241f85] futex(0x14b6e9b9982c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194527, tv_nsec=33243459}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb241f85] futex(0x14b6e9b9922c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194527, tv_nsec=33271365}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194467, tv_nsec=68977000}, 0xffffffff) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194467, tv_nsec=469189000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194467, tv_nsec=869475000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194468, tv_nsec=33241000}, 0xffffffff <unfinished ...>

[pid 55681] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55681] [000014b6eb2451aa] futex(0x14b6e9b55ca8, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55681] [000014b6eb241f85] futex(0x14b6e9b55cfc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194469, tv_nsec=26499000}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b9922c, FUTEX_WAKE_PRIVATE, 1) = 1

[pid 58033] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b9982c, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55678] [000014b6eb24241c] <... futex resumed> ) = 1

[pid 55686] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb24510d] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 1

[pid 58033] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb241f85] futex(0x14b6e9b99228, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194528, tv_nsec=33799081}, 0xffffffff <unfinished ...>

[pid 55686] [000014b6eb241f85] futex(0x14b6e9b99828, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194528, tv_nsec=33796536}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194468, tv_nsec=269734000}, 0xffffffff) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194468, tv_nsec=669990000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194469, tv_nsec=33795000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55681] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55681] [000014b6eb2451aa] futex(0x14b6e9b55ca8, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55681] [000014b6eb241f85] futex(0x14b6e9b55cfc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194470, tv_nsec=26888000}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b99228, FUTEX_WAKE_PRIVATE, 1) = 1

[pid 58033] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b99828, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55678] [000014b6eb24241c] <... futex resumed> ) = 1

[pid 55678] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 58033] [000014b6eb24510d] <... futex resumed> ) = -1 EAGAIN (Resource temporarily unavailable)

[pid 55686] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb241f85] futex(0x14b6e9b9922c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194529, tv_nsec=34358408}, 0xffffffff <unfinished ...>

[pid 55686] [000014b6eb241f85] futex(0x14b6e9b9982c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194529, tv_nsec=34357634}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194469, tv_nsec=70256000}, 0xffffffff) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194469, tv_nsec=470467000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194469, tv_nsec=870746000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194469, tv_nsec=990963000}, 0xffffffff) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b9922c, FUTEX_WAKE_PRIVATE, 1) = 1

[pid 58033] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194470, tv_nsec=34356000}, 0xffffffff <unfinished ...>

[pid 58033] [000014b6eb241f85] futex(0x14b6e9b99228, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194529, tv_nsec=991484576}, 0xffffffff <unfinished ...>

[pid 55681] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55681] [000014b6eb2451aa] futex(0x14b6e9b55ca8, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55681] [000014b6eb241f85] futex(0x14b6e9b55cfc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194471, tv_nsec=27308000}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b99228, FUTEX_WAKE_PRIVATE, 1) = 1

[pid 58033] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b9982c, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55686] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] <... futex resumed> ) = 1

[pid 55686] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55678] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb24510d] <... futex resumed> ) = -1 EAGAIN (Resource temporarily unavailable)

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 1

[pid 58033] [000014b6eb24510d] <... futex resumed> ) = 0

[pid 55686] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb241f85] futex(0x14b6e9b99828, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194530, tv_nsec=34936204}, 0xffffffff <unfinished ...>

[pid 58033] [000014b6eb241f85] futex(0x14b6e9b9922c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194530, tv_nsec=34950196}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194470, tv_nsec=270989000}, 0xffffffff) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194470, tv_nsec=671281000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194471, tv_nsec=34934000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55681] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55681] [000014b6eb2451aa] futex(0x14b6e9b55ca8, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55681] [000014b6eb241f85] futex(0x14b6e9b55cfc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194472, tv_nsec=27715000}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b9922c, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] <... futex resumed> ) = 1

[pid 58033] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable)

[pid 55678] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b99828, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb24510d] futex(0x560be5c49b00, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55678] [000014b6eb24241c] <... futex resumed> ) = 1

[pid 55686] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb24510d] <... futex resumed> ) = 0

[pid 55686] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 1

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55686] [000014b6eb241f85] futex(0x14b6e9b9982c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194531, tv_nsec=35495273}, 0xffffffff <unfinished ...>

[pid 58033] [000014b6eb241f85] futex(0x14b6e9b99228, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194531, tv_nsec=35518237}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194471, tv_nsec=71547000}, 0xffffffff) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194471, tv_nsec=471759000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194471, tv_nsec=872003000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194472, tv_nsec=35494000}, 0xffffffff <unfinished ...>

[pid 55681] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55681] [000014b6eb2451aa] futex(0x14b6e9b55ca8, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55681] [000014b6eb241f85] futex(0x14b6e9b55cfc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194473, tv_nsec=28102000}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b99228, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] <... futex resumed> ) = 1

[pid 58033] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55678] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb24510d] <... futex resumed> ) = -1 EAGAIN (Resource temporarily unavailable)

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b9982c, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] <... futex resumed> ) = 1

[pid 58033] [000014b6eb24510d] futex(0x560be5c49b00, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb24510d] <... futex resumed> ) = -1 EAGAIN (Resource temporarily unavailable)

[pid 55686] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55686] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb241f85] futex(0x14b6e9b9922c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194532, tv_nsec=36151034}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194472, tv_nsec=272227000}, 0xffffffff <unfinished ...>

[pid 55686] [000014b6eb241f85] futex(0x14b6e9b99828, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194532, tv_nsec=36225752}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194472, tv_nsec=672509000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194473, tv_nsec=36149000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55681] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55681] [000014b6eb2451aa] futex(0x14b6e9b55ca8, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55681] [000014b6eb241f85] futex(0x14b6e9b55cfc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194474, tv_nsec=28500000}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b99828, FUTEX_WAKE_PRIVATE, 1) = 1

[pid 55686] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb24241c] futex(0x14b6e9b9922c, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb24510d] futex(0x14b6e9843b10, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55678] [000014b6eb24241c] <... futex resumed> ) = 1

[pid 58033] [000014b6eb241f85] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb24510d] <... futex resumed> ) = 0

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 1

[pid 55686] [000014b6eb2451aa] futex(0x14b6e9843b10, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb24510d] futex(0x560be5c49b00, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

[pid 55686] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb24510d] <... futex resumed> ) = -1 EAGAIN (Resource temporarily unavailable)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 58033] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

[pid 55686] [000014b6eb241f85] futex(0x14b6e9b9982c, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194533, tv_nsec=36703998}, 0xffffffff <unfinished ...>

[pid 58033] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 55678] [000014b6eb2451aa] <... futex resumed> ) = 0

[pid 58033] [000014b6eb241f85] futex(0x14b6e9b99228, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194533, tv_nsec=36783338}, 0xffffffff <unfinished ...>

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194473, tv_nsec=72767000}, 0xffffffff) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194473, tv_nsec=472993000}, 0xffffffff <unfinished ...>

[pid 55680] [000014b6eb45363a] <... io_getevents resumed> [], {tv_sec=0, tv_nsec=500000000}) = 0

[pid 55680] [000014b6eb45363a] io_getevents(0x14b6ebeab000, 1, 1,  <unfinished ...>

[pid 55678] [000014b6eb241f85] <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out)

[pid 55678] [000014b6eb2451aa] futex(0x560be5c49b00, FUTEX_WAKE_PRIVATE, 1) = 0

[pid 55678] [000014b6eb241f85] futex(0x560be5c49ae8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1589194473, tv_nsec=873292000}, 0xffffffff^Cstrace: Process 55674 detached

strace: Process 55678 detached

 <detached ...>

strace: Process 55679 detached

strace: Process 55680 detached

strace: Process 55681 detached

strace: Process 55686 detached

strace: Process 55692 detached

strace: Process 55693 detached

strace: Process 55695 detached

strace: Process 57112 detached

strace: Process 58033 detached

strace: Process 58275 detached

Version: '10.5.2-MariaDB-debug'  socket: '/test/MD180320-mariadb-10.5.2-linux-x86_64-dbg/socket.sock'  port: 16702  MariaDB Server

safe_mutex: Trying to unlock mutex LOCK_global_system_variables that wasn't locked at /data/git/10.5_dbg/sql/sys_vars.cc, line 5335

Last used at /data/git/10.5_dbg/sql/sys_vars_shared.h, line: 56

200520  0:32:16 [ERROR] mysqld got signal 6 ;

SET SESSION session_track_system_variables="sql_slave_skip_counter", sql_slave_skip_counter= 0;

safe_mutex: Trying to unlock mutex LOCK_global_system_variables that wasn't locked at /data/src/10.2/sql/sys_vars.cc, line 4723

Last used at /data/src/10.2/sql/sql_class.cc, line: 1158

200926 20:23:19 [ERROR] mysqld got signal 6 ;

#5  0x00007f959a936859 in __GI_abort () at abort.c:79

#6  0x000055d71ec376e9 in safe_mutex_unlock (mp=0x55d71f5acc00 <LOCK_global_system_variables>, file=0x55d71ecfa848 "/data/src/10.2/sql/sys_vars.cc", line=4723) at /data/src/10.2/mysys/thr_mutex.c:418

#7  0x000055d71e375345 in inline_mysql_mutex_unlock (that=0x55d71f5acc00 <LOCK_global_system_variables>, src_file=0x55d71ecfa848 "/data/src/10.2/sql/sys_vars.cc", src_line=4723) at /data/src/10.2/include/mysql/psi/mysql_thread.h:754

#8  0x000055d71e37a1b1 in Sys_var_multi_source_ulonglong::get_master_info_ulonglong_value (this=0x55d71f5cdb60 <Sys_slave_skip_counter>, thd=0x7f9584000d90, offset=18128) at /data/src/10.2/sql/sys_vars.cc:4723

#9  0x000055d71e38f591 in Sys_var_multi_source_ulonglong::session_value_ptr (this=0x55d71f5cdb60 <Sys_slave_skip_counter>, thd=0x7f9584000d90, base=0x55d71ecc4150 <null_lex_str>) at /data/src/10.2/sql/sys_vars.ic:2258

#10 0x000055d71e137a81 in sys_var::value_ptr (this=0x55d71f5cdb60 <Sys_slave_skip_counter>, thd=0x7f9584000d90, type=SHOW_OPT_SESSION, base=0x55d71ecc4150 <null_lex_str>) at /data/src/10.2/sql/set_var.cc:284

#11 0x000055d71e2a592d in get_one_variable (thd=0x7f9584000d90, variable=0x7f9594aa1740, value_type=SHOW_OPT_SESSION, show_type=SHOW_ULONGLONG, status_var=0x0, charset=0x7f9594aa1700, buff=0x7f9594aa1760 "\320\f", length=0x7f9594aa1708) at /data/src/10.2/sql/sql_show.cc:3368

#12 0x000055d71e134959 in Session_sysvars_tracker::store_variable (ptr=0x7f9584095b90, data_ptr=0x7f9594aa1ff0) at /data/src/10.2/sql/session_tracker.cc:775

#13 0x000055d71ec0960f in my_hash_iterate (hash=0x7f95840081b0, action=0x55d71e1347c6 <Session_sysvars_tracker::store_variable(void*, void*)>, argument=0x7f9594aa1ff0) at /data/src/10.2/mysys/hash.c:802

#14 0x000055d71e134b38 in Session_sysvars_tracker::vars_list::store (this=0x7f95840081b0, thd=0x7f9584000d90, buf=0x7f9594aa20f0) at /data/src/10.2/sql/session_tracker.cc:811

#15 0x000055d71e134b91 in Session_sysvars_tracker::store (this=0x7f95840084b0, thd=0x7f9584000d90, buf=0x7f9594aa20f0) at /data/src/10.2/sql/session_tracker.cc:831

#16 0x000055d71e136043 in Session_tracker::store (this=0x7f9584006260, thd=0x7f9584000d90, buf=0x7f9594aa20f0) at /data/src/10.2/sql/session_tracker.cc:1688

#17 0x000055d71e1290c7 in net_send_ok (thd=0x7f9584000d90, server_status=16386, statement_warn_count=0, affected_rows=0, id=0, message=0x7f9584005f43 "", is_eof=false, skip_flush=false) at /data/src/10.2/sql/protocol.cc:283

#18 0x000055d71e129be5 in Protocol::send_ok (this=0x7f9584001348, server_status=16386, statement_warn_count=0, affected_rows=0, last_insert_id=0, message=0x7f9584005f43 "", skip_flush=false) at /data/src/10.2/sql/protocol.cc:624

#19 0x000055d71e129adf in Protocol::end_statement (this=0x7f9584001348) at /data/src/10.2/sql/protocol.cc:588

#20 0x000055d71e206a50 in dispatch_command (command=COM_QUERY, thd=0x7f9584000d90, packet=0x7f9584008b51 "SET SESSION session_track_system_variables=\"sql_slave_skip_counter\", sql_slave_skip_counter= 0", packet_length=94, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:2380

#21 0x000055d71e203a51 in do_command (thd=0x7f9584000d90) at /data/src/10.2/sql/sql_parse.cc:1377

#22 0x000055d71e35d695 in do_handle_one_connection (connect=0x55d721ad19d0) at /data/src/10.2/sql/sql_connect.cc:1336

#23 0x000055d71e35d3fa in handle_one_connection (arg=0x55d721ad19d0) at /data/src/10.2/sql/sql_connect.cc:1241

#24 0x000055d71eb81a6c in pfs_spawn_thread (arg=0x55d721ada5a0) at /data/src/10.2/storage/perfschema/pfs.cc:1869

#25 0x00007f959ae59609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#26 0x00007f959aa33103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7efec8674700 (LWP 3598224)):

#0  __lll_lock_wait (futex=futex@entry=0x5641b75ed240 <LOCK_global_system_variables>, private=0) at lowlevellock.c:52

#1  0x00007efece22d235 in __GI___pthread_mutex_lock (mutex=mutex@entry=0x5641b75ed240 <LOCK_global_system_variables>) at ../nptl/pthread_mutex_lock.c:135

#2  0x00005641b67ab5c4 in inline_mysql_mutex_lock (that=that@entry=0x5641b75ed240 <LOCK_global_system_variables>, src_line=src_line@entry=1158, src_file=0x5641b6f7f868 "/data/src/10.2/sql/sql_class.cc") at /data/src/10.2/include/mysql/psi/mysql_thread.h:675

#3  0x00005641b67affe2 in THD::init (this=this@entry=0x7efeac000c48) at /data/src/10.2/sql/sql_class.cc:1158

#4  0x00005641b67b4059 in THD::change_user (this=this@entry=0x7efeac000c48) at /data/src/10.2/sql/sql_class.cc:1348

#5  0x00005641b67b418d in THD::reset_for_reuse (this=this@entry=0x7efeac000c48) at /data/src/10.2/sql/sql_class.cc:1473

#6  0x00005641b68c73f8 in CONNECT::create_thd (this=this@entry=0x5641b8ec7088, thd=thd@entry=0x7efeac000c48) at /data/src/10.2/sql/sql_connect.cc:1432

#7  0x00005641b67414ae in cache_thread (thd=0x7efeac000c48) at /data/src/10.2/sql/mysqld.cc:2996

#8  one_thread_per_connection_end (thd=0x7efeac000c48, put_in_cache=<optimized out>) at /data/src/10.2/sql/mysqld.cc:3062

#9  0x00005641b68c77ae in do_handle_one_connection (connect=connect@entry=0x5641b8e5c6f8) at /data/src/10.2/sql/sql_connect.cc:1355

#10 0x00005641b68c79ef in handle_one_connection (arg=arg@entry=0x5641b8e5c6f8) at /data/src/10.2/sql/sql_connect.cc:1241

#11 0x00005641b6e5e9b6 in pfs_spawn_thread (arg=0x5641b8e67e38) at /data/src/10.2/storage/perfschema/pfs.cc:1869

#12 0x00007efece22a609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#13 0x00007efecde1f103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95