TSAN: data race in aio_linux.cc during innodb_init (affects most TSAN testing)

WARNING: ThreadSanitizer: data race (pid=1951015)

  Read of size 8 at 0x7f4f6da38fa0 by thread T3:

    #0 tpool::aio_linux::getevent_thread_routine(tpool::aio_linux*) /test/10.8_dbg_san/tpool/aio_linux.cc:132 (mariadbd+0x1a50dcd)

    #1 void std::__invoke_impl<void, void (*)(tpool::aio_linux*), tpool::aio_linux*>(std::__invoke_other, void (*&&)(tpool::aio_linux*), tpool::aio_linux*&&) /usr/include/c++/9/bits/invoke.h:60 (mariadbd+0x1a50b8f)

    #2 std::__invoke_result<void (*)(tpool::aio_linux*), tpool::aio_linux*>::type std::__invoke<void (*)(tpool::aio_linux*), tpool::aio_linux*>(void (*&&)(tpool::aio_linux*), tpool::aio_linux*&&) /usr/include/c++/9/bits/invoke.h:95 (mariadbd+0x1a50b8f)

    #3 void std::thread::_Invoker<std::tuple<void (*)(tpool::aio_linux*), tpool::aio_linux*> >::_M_invoke<0ul, 1ul>(std::_Index_tuple<0ul, 1ul>) /usr/include/c++/9/thread:244 (mariadbd+0x1a50b8f)

    #4 std::thread::_Invoker<std::tuple<void (*)(tpool::aio_linux*), tpool::aio_linux*> >::operator()() /usr/include/c++/9/thread:251 (mariadbd+0x1a50b8f)

    #5 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(tpool::aio_linux*), tpool::aio_linux*> > >::_M_run() /usr/include/c++/9/thread:195 (mariadbd+0x1a50b8f)

    #6 <null> <null> (libstdc++.so.6+0xd6de3)

  Previous write of size 8 at 0x7f4f6da38fa0 by thread T6:

    #0 os_aio(IORequest const&, void*, unsigned long, unsigned long) /test/10.8_dbg_san/storage/innobase/os/os0file.cc:3891 (mariadbd+0x160eb1e)

    #1 fil_space_t::io(IORequest const&, unsigned long, unsigned long, void*, buf_page_t*) /test/10.8_dbg_san/storage/innobase/fil/fil0fil.cc:2839 (mariadbd+0x19799c9)

    #2 buf_read_page_low /test/10.8_dbg_san/storage/innobase/buf/buf0rea.cc:333 (mariadbd+0x18e8e87)

    #3 buf_read_page_background(fil_space_t*, page_id_t, unsigned long) /test/10.8_dbg_san/storage/innobase/buf/buf0rea.cc:499 (mariadbd+0x18ea755)

    #4 buf_load /test/10.8_dbg_san/storage/innobase/buf/buf0dump.cc:686 (mariadbd+0x18c4dd0)

    #5 buf_dump_load_func /test/10.8_dbg_san/storage/innobase/buf/buf0dump.cc:771 (mariadbd+0x18c56f9)

    #6 tpool::task::execute() /test/10.8_dbg_san/tpool/task.cc:37 (mariadbd+0x1a5003f)

    #7 tpool::thread_pool_generic::worker_main(tpool::worker_data*) /test/10.8_dbg_san/tpool/tpool_generic.cc:549 (mariadbd+0x1a4dbf2)

    #8 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+0x1a4e2a1)

    #9 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+0x1a4e2a1)

    #10 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+0x1a4e2a1)

    #11 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+0x1a4e2a1)

    #12 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+0x1a4e2a1)

    #13 <null> <null> (libstdc++.so.6+0xd6de3)

  Location is heap block of size 196608 at 0x7f4f6da09000 allocated by main thread:

    #0 operator new(unsigned long) ../../../../src/libsanitizer/tsan/tsan_new_delete.cpp:64 (libtsan.so.0+0x8c032)

    #1 tpool::cache<tpool::aiocb>::cache(unsigned long, tpool::cache_notification_mode) /usr/include/c++/9/ext/new_allocator.h:114 (mariadbd+0x160f18e)

    #2 io_slots::io_slots(int, int) /test/10.8_dbg_san/storage/innobase/os/os0file.cc:96 (mariadbd+0x160f18e)

    #3 os_aio_init() /test/10.8_dbg_san/storage/innobase/os/os0file.cc:3750 (mariadbd+0x160f18e)

    #4 srv_start(bool) /test/10.8_dbg_san/storage/innobase/srv/srv0start.cc:1191 (mariadbd+0x179a992)

    #5 innodb_init /test/10.8_dbg_san/storage/innobase/handler/ha_innodb.cc:4206 (mariadbd+0x14dc555)

    #6 ha_initialize_handlerton(st_plugin_int*) /test/10.8_dbg_san/sql/handler.cc:649 (mariadbd+0xe312be)

    #7 plugin_initialize /test/10.8_dbg_san/sql/sql_plugin.cc:1462 (mariadbd+0x8fec57)

    #8 plugin_init(int*, char**, int) /test/10.8_dbg_san/sql/sql_plugin.cc:1755 (mariadbd+0x902556)

    #9 init_server_components /test/10.8_dbg_san/sql/mysqld.cc:5080 (mariadbd+0x673370)

    #10 mysqld_main(int, char**) /test/10.8_dbg_san/sql/mysqld.cc:5695 (mariadbd+0x67d962)

    #11 main /test/10.8_dbg_san/sql/main.cc:34 (mariadbd+0x668dcb)

  Thread T3 (tid=1952469, running) created by main thread at:

    #0 pthread_create ../../../../src/libsanitizer/tsan/tsan_interceptors_posix.cpp:962 (libtsan.so.0+0x5ea79)

    #1 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) <null> (libstdc++.so.6+0xd70a8)

    #2 tpool::thread_pool_generic::create_native_aio(int) /test/10.8_dbg_san/tpool/tpool_generic.cc:285 (mariadbd+0x1a4e37e)

    #3 tpool::thread_pool::configure_aio(bool, int) /test/10.8_dbg_san/tpool/tpool.h:215 (mariadbd+0x16103fb)

    #4 os_aio_init() /test/10.8_dbg_san/storage/innobase/os/os0file.cc:3759 (mariadbd+0x16103fb)

    #5 srv_start(bool) /test/10.8_dbg_san/storage/innobase/srv/srv0start.cc:1191 (mariadbd+0x179a992)

    #6 innodb_init /test/10.8_dbg_san/storage/innobase/handler/ha_innodb.cc:4206 (mariadbd+0x14dc555)

    #7 ha_initialize_handlerton(st_plugin_int*) /test/10.8_dbg_san/sql/handler.cc:649 (mariadbd+0xe312be)

    #8 plugin_initialize /test/10.8_dbg_san/sql/sql_plugin.cc:1462 (mariadbd+0x8fec57)

    #9 plugin_init(int*, char**, int) /test/10.8_dbg_san/sql/sql_plugin.cc:1755 (mariadbd+0x902556)

    #10 init_server_components /test/10.8_dbg_san/sql/mysqld.cc:5080 (mariadbd+0x673370)

    #11 mysqld_main(int, char**) /test/10.8_dbg_san/sql/mysqld.cc:5695 (mariadbd+0x67d962)

    #12 main /test/10.8_dbg_san/sql/main.cc:34 (mariadbd+0x668dcb)

  Thread T6 (tid=1953658, running) created by main thread at:

    #0 pthread_create ../../../../src/libsanitizer/tsan/tsan_interceptors_posix.cpp:962 (libtsan.so.0+0x5ea79)

    #1 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) <null> (libstdc++.so.6+0xd70a8)

    #2 tpool::thread_pool_generic::maybe_wake_or_create_thread() /test/10.8_dbg_san/tpool/tpool_generic.cc:806 (mariadbd+0x1a4ce90)

    #3 tpool::thread_pool_generic::submit_task(tpool::task*) /test/10.8_dbg_san/tpool/tpool_generic.cc:825 (mariadbd+0x1a4de3a)

    #4 buf_do_load_dump /test/10.8_dbg_san/storage/innobase/buf/buf0dump.cc:825 (mariadbd+0x18c30c1)

    #5 buf_load_at_startup() /test/10.8_dbg_san/storage/innobase/buf/buf0dump.cc:819 (mariadbd+0x18c31f4)

    #6 srv_start(bool) /test/10.8_dbg_san/storage/innobase/srv/srv0start.cc:1876 (mariadbd+0x179e639)

    #7 innodb_init /test/10.8_dbg_san/storage/innobase/handler/ha_innodb.cc:4206 (mariadbd+0x14dc555)

    #8 ha_initialize_handlerton(st_plugin_int*) /test/10.8_dbg_san/sql/handler.cc:649 (mariadbd+0xe312be)

    #9 plugin_initialize /test/10.8_dbg_san/sql/sql_plugin.cc:1462 (mariadbd+0x8fec57)

    #10 plugin_init(int*, char**, int) /test/10.8_dbg_san/sql/sql_plugin.cc:1755 (mariadbd+0x902556)

    #11 init_server_components /test/10.8_dbg_san/sql/mysqld.cc:5080 (mariadbd+0x673370)

    #12 mysqld_main(int, char**) /test/10.8_dbg_san/sql/mysqld.cc:5695 (mariadbd+0x67d962)

    #13 main /test/10.8_dbg_san/sql/main.cc:34 (mariadbd+0x668dcb)

SUMMARY: ThreadSanitizer: data race /test/10.8_dbg_san/tpool/aio_linux.cc:132 in tpool::aio_linux::getevent_thread_routine(tpool::aio_linux*)