[MDEV-25735] Diagnostics_area::set_eof_status(THD*): Assertion `! is_set()' failed in Diagnostics_area::set_eof_status Created: 2021-05-20  Updated: 2024-01-22

Status: Confirmed
Project: MariaDB Server
Component/s: Variables
Affects Version/s: 10.2, 10.3, 10.4, 10.5, 10.6, 10.7, 10.8, 10.11, 11.0, 11.1, 11.2, 11.3, 11.4
Fix Version/s: 10.4, 10.5, 10.6, 10.11, 11.0, 11.1, 11.2, 11.3

Type: Bug Priority: Major
Reporter: Roel Van de Paar Assignee: Rucha Deodhar
Resolution: Unresolved Votes: 0
Labels: None

Issue Links:
Relates
relates to MDEV-22422 Assertion `! is_set()' failed in Diag... Closed

 Description   

Further to MDEV-22422:

# 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%';

Leads to:

10.6.1 34340fb501f97d7289c165dd6599a3942087bc41 (Debug)

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

Additionally, a core dump consistently fails to be written with this testcase.

However, the original run/find (likely somewhat different query flow leading to slightly altered behavior) did produce a core for the same assert:

10.6.1 34340fb501f97d7289c165dd6599a3942087bc41 (Debug)

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

10.6.1 34340fb501f97d7289c165dd6599a3942087bc41 (Debug)

 
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

Bug confirmed present in:
MariaDB: 10.2.38 (dbg), 10.3.29 (dbg), 10.4.19 (dbg), 10.5.10 (dbg), 10.6.1 (dbg)

Bug (or feature/syntax) confirmed not present in:
MariaDB: 10.2.38 (opt), 10.3.29 (opt), 10.4.19 (opt), 10.5.10 (opt), 10.6.1 (opt)
MySQL: 5.5.62 (dbg), 5.5.62 (opt), 5.6.51 (dbg), 5.6.51 (opt), 5.7.34 (dbg), 5.7.34 (opt), 8.0.24 (dbg), 8.0.24 (opt)

 Comments   
Comment by Roel Van de Paar [ 2022-01-29 ]

New stack observed on 10.8.

SET max_statement_time=0.001;
 
HELP 'a%';  # Repeat till crash is observed

Leads to:

10.8.1 0c5d1342ae6b5ab3256848be7a83e5c3b1f21566 (Debug)

 
mysqld: /test/10.8_dbg/sql/sql_error.cc:375: void Diagnostics_area::set_eof_status(THD*): Assertion `!is_set() || (m_status == DA_EOF_BULK && is_bulk_op())' failed.

10.8.1 0c5d1342ae6b5ab3256848be7a83e5c3b1f21566 (Debug)

 
Core was generated by `/test/MD290122-mariadb-10.8.1-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'.
 
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 0x14c1b0093700 (LWP 859984))]
 
(gdb) bt
 
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
 
#1  0x000014c1ba4f7859 in __GI_abort () at abort.c:79
 
#2  0x000014c1ba4f7729 in __assert_fail_base (fmt=0x14c1ba68d588 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x560e24f8bd38 "!is_set() || (m_status == DA_EOF_BULK && is_bulk_op())", file=0x560e24f8bb98 "/test/10.8_dbg/sql/sql_error.cc", line=375, function=<optimized out>) at assert.c:92
 
#3  0x000014c1ba508f36 in __GI___assert_fail (assertion=assertion@entry=0x560e24f8bd38 "!is_set() || (m_status == DA_EOF_BULK && is_bulk_op())", file=file@entry=0x560e24f8bb98 "/test/10.8_dbg/sql/sql_error.cc", line=line@entry=375, function=function@entry=0x560e24f8bd70 "void Diagnostics_area::set_eof_status(THD*)") at assert.c:101
 
#4  0x0000560e242688da in Diagnostics_area::set_eof_status (this=0x14c12c006d20, thd=thd@entry=0x14c12c000db8) at /test/10.8_dbg/sql/sql_error.h:1031
 
#5  0x0000560e247a3f96 in my_eof (thd=0x14c12c000db8) at /test/10.8_dbg/sql/sql_class.h:5541
 
#6  mysqld_help_internal (thd=thd@entry=0x14c12c000db8, mask=<optimized out>) at /test/10.8_dbg/sql/sql_help.cc:1068
 
#7  0x0000560e247a531e in mysqld_help (thd=thd@entry=0x14c12c000db8, mask=<optimized out>) at /test/10.8_dbg/sql/sql_help.cc:1086
 
#8  0x0000560e242c2c69 in mysql_execute_command (thd=thd@entry=0x14c12c000db8, is_called_from_prepared_stmt=is_called_from_prepared_stmt@entry=false) at /test/10.8_dbg/sql/sql_parse.cc:3980
 
#9  0x0000560e242aedb7 in mysql_parse (thd=thd@entry=0x14c12c000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x14c1b0092400) at /test/10.8_dbg/sql/sql_parse.cc:8027
 
#10 0x0000560e242bda53 in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x14c12c000db8, packet=packet@entry=0x14c12c00b889 "", packet_length=packet_length@entry=9, blocking=blocking@entry=true) at /test/10.8_dbg/sql/sql_class.h:1362
 
#11 0x0000560e242c0e9a in do_command (thd=0x14c12c000db8, blocking=blocking@entry=true) at /test/10.8_dbg/sql/sql_parse.cc:1402
 
#12 0x0000560e2443c110 in do_handle_one_connection (connect=<optimized out>, connect@entry=0x560e27a62d58, put_in_cache=put_in_cache@entry=true) at /test/10.8_dbg/sql/sql_connect.cc:1418
 
#13 0x0000560e2443c715 in handle_one_connection (arg=arg@entry=0x560e27a62d58) at /test/10.8_dbg/sql/sql_connect.cc:1312
 
#14 0x0000560e248c5c8e in pfs_spawn_thread (arg=0x560e27975fb8) at /test/10.8_dbg/storage/perfschema/pfs.cc:2201
 
#15 0x000014c1baa06609 in start_thread (arg=<optimized out>) at pthread_create.c:477
 
#16 0x000014c1ba5f4293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Bug confirmed present in:
MariaDB: 10.2.42 (dbg), 10.3.33 (dbg), 10.4.23 (dbg), 10.5.14 (dbg), 10.6.6 (dbg), 10.7.2 (dbg), 10.8.1 (dbg)

Bug (or feature/syntax) confirmed not present in:
MariaDB: 10.2.42 (opt), 10.3.33 (opt), 10.4.23 (opt), 10.5.14 (opt), 10.6.6 (opt), 10.7.2 (opt), 10.8.1 (opt)
MySQL: 5.5.62 (dbg), 5.5.62 (opt), 5.6.51 (dbg), 5.6.51 (opt), 5.7.36 (dbg), 5.7.36 (opt), 8.0.27 (dbg), 8.0.27 (opt)

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