Diagnostics_area::set_eof_status(THD*): Assertion `! is_set()' failed in Diagnostics_area::set_eof_status

# Repeat until server crashes (about 20 to 1000 attempts; quantity may vary signficantly)

SET MAX_STATEMENT_TIME=0.000001;

HELP 'a%';

HELP 'a%';

HELP 'a%';

HELP 'a%';

HELP 'a%';

HELP 'a%';

mysqld: /test/10.6_dbg/sql/sql_error.cc:374: void Diagnostics_area::set_eof_status(THD*): Assertion `! is_set()' failed.

mysqld: /test/10.6_dbg/sql/sql_error.cc:374: void Diagnostics_area::set_eof_status(THD*): Assertion `! is_set()' failed.

Core was generated by `/test/MD180521-mariadb-10.6.1-linux-x86_64-dbg/bin/mysqld --no-defaults --max_a'.

Program terminated with signal SIGABRT, Aborted.

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

[Current thread is 1 (Thread 0x15101d9fd700 (LWP 1660338))]

(gdb) bt

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

#1  0x00001510348fb859 in __GI_abort () at abort.c:79

#2  0x00001510348fb729 in __assert_fail_base (fmt=0x151034a91588 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x558894b7a981 "! is_set()", file=0x558894b7a450 "/test/10.6_dbg/sql/sql_error.cc", line=374, function=<optimized out>) at assert.c:92

#3  0x000015103490cf36 in __GI___assert_fail (assertion=assertion@entry=0x558894b7a981 "! is_set()", file=file@entry=0x558894b7a450 "/test/10.6_dbg/sql/sql_error.cc", line=line@entry=374, function=function@entry=0x558894b7a5f0 "void Diagnostics_area::set_eof_status(THD*)") at assert.c:101

#4  0x0000558893e8bacd in Diagnostics_area::set_eof_status (this=0x150fd4006c68, thd=thd@entry=0x150fd4000db8) at /test/10.6_dbg/sql/sql_error.h:1005

#5  0x00005588943ae2f2 in my_eof (thd=0x150fd4000db8) at /test/10.6_dbg/sql/sql_class.h:5494

#6  mysqld_help_internal (thd=thd@entry=0x150fd4000db8, mask=<optimized out>) at /test/10.6_dbg/sql/sql_help.cc:849

#7  0x00005588943af0b3 in mysqld_help (thd=thd@entry=0x150fd4000db8, mask=<optimized out>) at /test/10.6_dbg/sql/sql_help.cc:867

#8  0x0000558893ee5eb3 in mysql_execute_command (thd=thd@entry=0x150fd4000db8) at /test/10.6_dbg/sql/sql_parse.cc:3977

#9  0x0000558893ed1f8d in mysql_parse (thd=thd@entry=0x150fd4000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x15101d9fc410) at /test/10.6_dbg/sql/sql_parse.cc:8019

#10 0x0000558893ee0dbf in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x150fd4000db8, packet=packet@entry=0x150fd400b8b9 "", packet_length=packet_length@entry=10, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_class.h:1333

#11 0x0000558893ee41b2 in do_command (thd=0x150fd4000db8, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_parse.cc:1406

#12 0x000055889403ee78 in do_handle_one_connection (connect=<optimized out>, connect@entry=0x558898594058, put_in_cache=put_in_cache@entry=true) at /test/10.6_dbg/sql/sql_connect.cc:1410

#13 0x000055889403f47d in handle_one_connection (arg=arg@entry=0x558898594058) at /test/10.6_dbg/sql/sql_connect.cc:1312

#14 0x00005588944f1d98 in pfs_spawn_thread (arg=0x5588984633b8) at /test/10.6_dbg/storage/perfschema/pfs.cc:2201

#15 0x0000151034e09609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#16 0x00001510349f8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95