SET SESSION session_track_system_variables="*";

SET SESSION max_relay_log_size=3*1024*1024;

Core was generated by `/test/MD180320-mariadb-10.5.2-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'.

Program terminated with signal SIGABRT, Aborted.

#0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=6)

    at ../sysdeps/unix/sysv/linux/pthread_kill.c:57

[Current thread is 1 (Thread 0x14b24c4d9700 (LWP 42163))]

(gdb) bt

#0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=6) at ../sysdeps/unix/sysv/linux/pthread_kill.c:57

#1  0x0000560a84e7f7d4 in my_write_core (sig=sig@entry=6) at /data/git/10.5_dbg/mysys/stacktrace.c:518

#2  0x0000560a84628b5f in handle_fatal_signal (sig=6) at /data/git/10.5_dbg/sql/signal_handler.cc:325

#3  <signal handler called>

#4  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51

#5  0x000014b24ac1d801 in __GI_abort () at abort.c:79

#6  0x0000560a84e84e44 in safe_mutex_unlock (mp=<optimized out>, file=file@entry=0x560a85032ad0 "/data/git/10.5_dbg/sql/sys_vars.cc", line=line@entry=5335) at /data/git/10.5_dbg/mysys/thr_mutex.c:415

#7  0x0000560a844edcf2 in inline_mysql_mutex_unlock (src_line=5335, src_file=0x560a85032ad0 "/data/git/10.5_dbg/sql/sys_vars.cc", that=<optimized out>) at /data/git/10.5_dbg/include/mysql/psi/mysql_thread.h:829

#8  Sys_var_multi_source_ulonglong::get_master_info_ulonglong_value (this=0x560a85bd8060 <Sys_max_relay_log_size>, thd=0x14b229015088, offset=<optimized out>) at /data/git/10.5_dbg/sql/sys_vars.cc:5335

#9  0x0000560a8450208a in Sys_var_multi_source_ulonglong::session_value_ptr (this=<optimized out>, thd=<optimized out>, base=<optimized out>) at /data/git/10.5_dbg/sql/sys_vars.ic:2381

#10 0x0000560a84299e80 in sys_var::value_ptr (this=this@entry=0x560a85bd8060 <Sys_max_relay_log_size>, thd=thd@entry=0x14b229015088, type=SHOW_OPT_SESSION, base=0x560a84ff6410 <null_clex_str>) at /data/git/10.5_dbg/sql/set_var.cc:283

#11 0x0000560a8441d37d in get_one_variable (thd=thd@entry=0x14b229015088, variable=variable@entry=0x14b24c4d74b0, value_type=value_type@entry=SHOW_OPT_SESSION, show_type=<optimized out>, show_type@entry=SHOW_SYS, status_var=status_var@entry=0x0, charset=charset@entry=0x14b24c4d74a0, buff=0x14b24c4d74e0 "\311C", length=0x14b24c4d74a8) at /data/git/10.5_dbg/sql/sql_show.cc:3532

#12 0x0000560a84298027 in Session_sysvars_tracker::vars_list::store (this=this@entry=0x14b22901af20, thd=0x14b229015088, buf=0x14b24c4d7e00) at /data/git/10.5_dbg/sql/session_tracker.cc:445

#13 0x0000560a8429885f in Session_sysvars_tracker::store (this=0x14b22901af10, thd=<optimized out>, buf=<optimized out>) at /data/git/10.5_dbg/sql/session_tracker.cc:495

#14 0x0000560a84298d48 in Session_tracker::store (this=this@entry=0x14b22901aea8, thd=thd@entry=0x14b229015088, buf=buf@entry=0x14b24c4d7e00) at /data/git/10.5_dbg/sql/session_tracker.cc:1251

#15 0x0000560a8428efba in net_send_ok (thd=0x14b229015088, server_status=server_status@entry=16386, statement_warn_count=statement_warn_count@entry=0, affected_rows=affected_rows@entry=0, id=id@entry=0, message=<optimized out>, message@entry=0x14b22901ab8b "", is_eof=false, skip_flush=false) at /data/git/10.5_dbg/sql/protocol.cc:282

#16 0x0000560a8428f1e6 in Protocol::send_ok (this=0x14b229015650, server_status=16386, statement_warn_count=0, affected_rows=0, last_insert_id=0, message=0x14b22901ab8b "", skip_flush=false) at /data/git/10.5_dbg/sql/protocol.cc:643

#17 0x0000560a8428fb71 in Protocol::end_statement (this=0x14b229015650) at /data/git/10.5_dbg/sql/protocol.cc:606

#18 0x0000560a8437caab in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x14b229015088, packet=<optimized out>, packet@entry=0x14b229067089 "SET SESSION max_relay_log_size=3*1024*1024", packet_length=<optimized out>, packet_length@entry=42, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /data/git/10.5_dbg/sql/sql_parse.cc:2430

#19 0x0000560a84378eaf in do_command (thd=0x14b229015088) at /data/git/10.5_dbg/sql/sql_parse.cc:1358

#20 0x0000560a844d2a09 in do_handle_one_connection (connect=<optimized out>, connect@entry=0x14b22be2b3a8, put_in_cache=put_in_cache@entry=true) at /data/git/10.5_dbg/sql/sql_connect.cc:1422

#21 0x0000560a844d2d38 in handle_one_connection (arg=arg@entry=0x14b22be2b3a8) at /data/git/10.5_dbg/sql/sql_connect.cc:1319

#22 0x0000560a8492fcfc in pfs_spawn_thread (arg=0x14b24a045888) at /data/git/10.5_dbg/storage/perfschema/pfs.cc:2201

#23 0x000014b24b9006db in start_thread (arg=0x14b24c4d9700) at pthread_create.c:463

#24 0x000014b24acfe88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95