TSAN: Data race in srv_mon_default_on at srv/srv0mon.cc:2099

... startup ...

SUMMARY: ThreadSanitizer: data race /test/10.5_opt_san/storage/innobase/srv/srv0mon.cc:2099 in srv_mon_default_on()

... mysqladmin shutdown ...

SUMMARY: ThreadSanitizer: data race /test/10.5_opt_san/storage/innobase/srv/srv0mon.cc:2099 in srv_mon_default_on()

WARNING: ThreadSanitizer: data race (pid=2539623)

  Write of size 8 at 0x558b8f1a7e78 by main thread:

    #0 srv_mon_default_on() /test/10.5_opt_san/storage/innobase/srv/srv0mon.cc:2099 (mariadbd+0x14decc1)

    #1 innodb_init /test/10.5_opt_san/storage/innobase/handler/ha_innodb.cc:3961 (mariadbd+0x136065c)

    #2 ha_initialize_handlerton(st_plugin_int*) /test/10.5_opt_san/sql/handler.cc:645 (mariadbd+0xcf9547)

    #3 plugin_initialize /test/10.5_opt_san/sql/sql_plugin.cc:1459 (mariadbd+0x8d3f74)

    #4 plugin_init(int*, char**, int) /test/10.5_opt_san/sql/sql_plugin.cc:1751 (mariadbd+0x8d5cc3)

    #5 init_server_components /test/10.5_opt_san/sql/mysqld.cc:4913 (mariadbd+0x72043d)

    #6 mysqld_main(int, char**) /test/10.5_opt_san/sql/mysqld.cc:5496 (mariadbd+0x725bf4)

    #7 main /test/10.5_opt_san/sql/main.cc:25 (mariadbd+0x6b8455)

  Previous read of size 8 at 0x558b8f1a7e78 by thread T7:

    #0 srv_master_do_idle_tasks /test/10.5_opt_san/storage/innobase/srv/srv0srv.cc:1791 (mariadbd+0x14e179b)

    #1 srv_master_callback /test/10.5_opt_san/storage/innobase/srv/srv0srv.cc:1853 (mariadbd+0x14e179b)

    #2 tpool::thread_pool_generic::timer_generic::run() /test/10.5_opt_san/tpool/tpool_generic.cc:309 (mariadbd+0x16f2c8e)

    #3 tpool::thread_pool_generic::timer_generic::execute(void*) /test/10.5_opt_san/tpool/tpool_generic.cc:329 (mariadbd+0x16f2c8e)

    #4 tpool::task::execute() /test/10.5_opt_san/tpool/task.cc:52 (mariadbd+0x16f48df)

    #5 tpool::thread_pool_generic::worker_main(tpool::worker_data*) /test/10.5_opt_san/tpool/tpool_generic.cc:546 (mariadbd+0x16f1b54)

    #6 void std::__invoke_impl<void, void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*>(std::__invoke_memfun_deref, void (tpool::thread_pool_generic::*&&)(tpool::worker_data*), tpool::thread_pool_generic*&&, tpool::worker_data*&&) /usr/include/c++/9/bits/invoke.h:73 (mariadbd+0x16f2a47)

    #7 std::__invoke_result<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*>::type std::__invoke<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*>(void (tpool::thread_pool_generic::*&&)(tpool::worker_data*), tpool::thread_pool_generic*&&, tpool::worker_data*&&) /usr/include/c++/9/bits/invoke.h:95 (mariadbd+0x16f2a47)

    #8 void std::thread::_Invoker<std::tuple<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> >::_M_invoke<0ul, 1ul, 2ul>(std::_Index_tuple<0ul, 1ul, 2ul>) /usr/include/c++/9/thread:244 (mariadbd+0x16f2a47)

    #9 std::thread::_Invoker<std::tuple<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> >::operator()() /usr/include/c++/9/thread:251 (mariadbd+0x16f2a47)

    #10 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> > >::_M_run() /usr/include/c++/9/thread:195 (mariadbd+0x16f2a47)

    #11 <null> <null> (libstdc++.so.6+0xd6d83)

  Location is global 'monitor_set_tbl' of size 32 at 0x558b8f1a7e60 (mariadbd+0x000002b2ae78)

  Thread T7 (tid=2539637, running) created by thread T1 at:

    #0 pthread_create <null> (libtsan.so.0+0x5ea99)

    #1 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) <null> (libstdc++.so.6+0xd7048)

    #2 tpool::thread_pool_generic::maybe_wake_or_create_thread() /test/10.5_opt_san/tpool/tpool_generic.cc:802 (mariadbd+0x16f2787)

    #3 tpool::thread_pool_generic::submit_task(tpool::task*) /test/10.5_opt_san/tpool/tpool_generic.cc:821 (mariadbd+0x16f2787)

    #4 tpool::thread_pool_generic::timer_generic::submit_task(void*) /test/10.5_opt_san/tpool/tpool_generic.cc:335 (mariadbd+0x16f28c9)

    #5 process_timers /test/10.5_opt_san/mysys/thr_timer.c:271 (mariadbd+0x17b289b)

    #6 timer_handler /test/10.5_opt_san/mysys/thr_timer.c:315 (mariadbd+0x17b289b)

    #7 <null> <null> (libtsan.so.0+0x2d1af)

SUMMARY: ThreadSanitizer: data race /test/10.5_opt_san/storage/innobase/srv/srv0mon.cc:2099 in srv_mon_default_on()

/*************************************************************//**

Turn on monitor counters that are marked as default ON. */

void

srv_mon_default_on(void)

/*====================*/

{

  ulint   ix;

  for (ix = 0; ix < NUM_MONITOR; ix++) {

    if (innodb_counter_info[ix].monitor_type

        & MONITOR_DEFAULT_ON) {

      /* Turn on monitor counters that are default on */

      MONITOR_ON(ix);                                         <------------------------ Here

      MONITOR_INIT(ix);

      MONITOR_SET_START(ix);

    }

  }

}

Compiled with GCC >=7.5.0 (I use GCC 9.3.0) and:

    -DWITH_TSAN=ON -DWSREP_LIB_WITH_TSAN=ON -DMUTEXTYPE=sys

Set before execution:

    export TSAN_OPTIONS=suppress_equal_stacks=1:suppress_equal_addresses=1:history_size=7:verbosity=1:exitcode=0