SET GLOBAL slow_query_log=ON;

SET local slow_query_log=ON;

SET long_query_time=0.000001;

SET timestamp=0.99;

mariadbd: /test/11.0_dbg/sql/log.cc:1456: bool LOGGER::slow_log_print(THD*, const char*, size_t, ulonglong): Assertion `thd->start_time' failed.

Core was generated by `/test/MD270523-mariadb-11.0.2-linux-x86_64-dbg/bin/mariadbd --no-defaults --cor'.

Program terminated with signal SIGABRT, Aborted.

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

    at ../sysdeps/unix/sysv/linux/pthread_kill.c:56

[Current thread is 1 (Thread 0x14dbcb147700 (LWP 725423))]

(gdb) bt

#0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=6) at ../sysdeps/unix/sysv/linux/pthread_kill.c:56

#1  0x000055ff0db24747 in my_write_core (sig=sig@entry=6) at /test/11.0_dbg/mysys/stacktrace.c:424

#2  0x000055ff0d412460 in handle_fatal_signal (sig=6) at /test/11.0_dbg/sql/signal_handler.cc:360

#3  <signal handler called>

#4  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50

#5  0x000014dbfbb02859 in __GI_abort () at abort.c:79

#6  0x000014dbfbb02729 in __assert_fail_base (fmt=0x14dbfbc98588 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x55ff0de9b94f "thd->start_time", file=0x55ff0de9b89c "/test/11.0_dbg/sql/log.cc", line=1456, function=<optimized out>) at assert.c:92

#7  0x000014dbfbb13fd6 in __GI___assert_fail (assertion=assertion@entry=0x55ff0de9b94f "thd->start_time", file=file@entry=0x55ff0de9b89c "/test/11.0_dbg/sql/log.cc", line=line@entry=1456, function=function@entry=0x55ff0de9c5b0 "bool LOGGER::slow_log_print(THD*, const char*, size_t, ulonglong)") at assert.c:101

#8  0x000055ff0d5729f1 in LOGGER::slow_log_print (this=this@entry=0x55ff0e701e80 <logger>, thd=thd@entry=0x14db94000d48, query=0x14db94013170 "SET timestamp=0.99", query_length=18, current_utime=1609222384088) at /test/11.0_dbg/sql/log.cc:1456

#9  0x000055ff0d57a500 in slow_log_print (thd=thd@entry=0x14db94000d48, query=<optimized out>, query_length=<optimized out>, current_utime=<optimized out>) at /test/11.0_dbg/sql/log.cc:7035

#10 0x000055ff0d11a075 in log_slow_statement (thd=thd@entry=0x14db94000d48) at /test/11.0_dbg/sql/sql_class.h:1370

#11 0x000055ff0d1230a2 in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x14db94000d48, packet=<optimized out>, packet@entry=0x14db9400ae39 "", packet_length=packet_length@entry=18, blocking=blocking@entry=true) at /test/11.0_dbg/sql/sql_parse.cc:2426

#12 0x000055ff0d123518 in do_command (thd=0x14db94000d48, blocking=blocking@entry=true) at /test/11.0_dbg/sql/sql_parse.cc:1407

#13 0x000055ff0d28c29e in do_handle_one_connection (connect=<optimized out>, connect@entry=0x55ff10f00988, put_in_cache=put_in_cache@entry=true) at /test/11.0_dbg/sql/sql_connect.cc:1416

#14 0x000055ff0d28c770 in handle_one_connection (arg=0x55ff10f00988) at /test/11.0_dbg/sql/sql_connect.cc:1318

#15 0x000014dbfc013609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#16 0x000014dbfbbff133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95