MySQL Bugs: #111449: void Diagnostics_area::set_eof_status(THD*): Assertion `!is

Bug #111449	void Diagnostics_area::set_eof_status(THD*): Assertion `!is_set()' failed.
Submitted:	15 Jun 2023 20:49	Modified:	10 Aug 2023 0:24
Reporter:	Yu Liang	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Server: Optimizer	Severity:	S6 (Debug Builds)
Version:	8.0.33	OS:	Ubuntu (20.04 LTS)
Assigned to:		CPU Architecture:	x86 (Intel(R) Core(TM) i7-10700 CPU)

Description:
The latest version of the MySQL Server (version 8.0.33 debug build) (git commit hash: ea7087d8850) crashes with Assertion Failure when executing the following query:

Config from "/etc/mysql/conf.d/mysql.cnf":

```
[mysqld]
sql_mode = "NO_ENGINE_SUBSTITUTION"
```

```sql
drop database if exists test123;
create database test123;
use test123;
CREATE TABLE IF NOT EXISTS v0 ( c1 INT ) ;
INSERT INTO v0 SET c1 = c1 IS TRUE;
HANDLER v0 OPEN ;
HANDLER v0 READ FIRST WHERE c1 MEMBER ( c1 ) IS NOT FALSE LIMIT 100 , 100 ;
```

In the debug build, the server crashes with the following stack trace: 

```
mysql> HANDLER v0 READ FIRST WHERE c1 MEMBER ( c1 ) IS NOT FALSE LIMIT 100 , 100 ;
mysqld: /home/mysql/mysql-server/sql/sql_error.cc:394: void Diagnostics_area::set_eof_status(THD *): Assertion `!is_set()' failed.
2023-06-15T20:48:12Z UTC - mysqld got signal 6 ;
Most likely, you have hit a bug, but this error can also be caused by malfunctioning hardware.
BuildID[sha1]=1d55d4671b7469352fc317efb0121b604c26443d
Thread pointer: 0xfffef0001040
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong...
stack_bottom = ffff707f9538 thread_stack 0x100000
/home/mysql/mysql-server/bld/runtime_output_directory/mysqld(my_print_stacktrace(unsigned char const*, unsigned long)+0x60) [0x4e6bc30]
/home/mysql/mysql-server/bld/runtime_output_directory/mysqld(print_fatal_signal(int)+0x340) [0x1a89320]
/home/mysql/mysql-server/bld/runtime_output_directory/mysqld(handle_fatal_signal+0x16c) [0x1a896dc]
linux-vdso.so.1(__kernel_rt_sigreturn+0) [0xffffada477a0]
/lib/aarch64-linux-gnu/libc.so.6(gsignal+0xe0) [0xffffad0bbd78]
/lib/aarch64-linux-gnu/libc.so.6(abort+0x114) [0xffffad0a8aac]
/lib/aarch64-linux-gnu/libc.so.6(+0x2d490) [0xffffad0b5490]
/lib/aarch64-linux-gnu/libc.so.6(+0x2d4f4) [0xffffad0b54f4]
/home/mysql/mysql-server/bld/runtime_output_directory/mysqld(Diagnostics_area::set_eof_status(THD*)+0x1cc) [0x153cbc8]
/home/mysql/mysql-server/bld/runtime_output_directory/mysqld(my_eof(THD*)+0x60) [0x148174c]
/home/mysql/mysql-server/bld/runtime_output_directory/mysqld(Sql_cmd_handler_read::execute(THD*)+0x292c) [0x1584c28]
/home/mysql/mysql-server/bld/runtime_output_directory/mysqld(mysql_execute_command(THD*, bool)+0x281c) [0x162bcd8]
/home/mysql/mysql-server/bld/runtime_output_directory/mysqld(dispatch_sql_command(THD*, Parser_state*)+0x1124) [0x16252c0]
/home/mysql/mysql-server/bld/runtime_output_directory/mysqld(dispatch_command(THD*, COM_DATA const*, enum_server_command)+0x5434) [0x161e224]
/home/mysql/mysql-server/bld/runtime_output_directory/mysqld(do_command(THD*)+0xb8c) [0x16228f4]
/home/mysql/mysql-server/bld/runtime_output_directory/mysqld() [0x1a59a64]
/home/mysql/mysql-server/bld/runtime_output_directory/mysqld() [0x655c1a0]
/lib/aarch64-linux-gnu/libpthread.so.0(+0x7624) [0xffffad9ed624]
/lib/aarch64-linux-gnu/libc.so.6(+0xd149c) [0xffffad15949c]

Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (fffef01f0090): HANDLER v0 READ FIRST WHERE c1 MEMBER ( c1 ) IS NOT FALSE LIMIT 100 , 100
Connection ID (thread ID): 14
Status: NOT_KILLED
```

How to repeat:
Steps to repeat the Assertion Failure:
1. Download the MySQL Server source code from the official github repo: `https://github.com/mysql/mysql-server`
2. Checkout to the latest mysql released version: 8.0.33 (hash: `ea7087d8850`)
3. Compile MySQL using the command: 

```
mkdir -p bld
cd bld
cmake .. -DDOWNLOAD_BOOST=1 -DWITH_BOOST=../boost -DWITH_UNIT_TESTS=OFF -DWITH_DEBUG=1
make
```

4. Run the MySQL Server with command: 

```
./bin/mysqld --basedir=$(pwd) --datadir=$(pwd)/data_all/ori_data --port=7000  --socket=/tmp/mysql_0.sock --mysqlx=OFF --performance_schema=OFF
```

5. Setup the MySQL Server config in the path: "/etc/mysql/conf.d/mysql.cnf"

```
[mysqld]
sql_mode = "NO_ENGINE_SUBSTITUTION"
```

6. Run the MySQL Client with the PoC:

```
./bin/mysql --port=7000 --user=root --socket=/tmp/mysql_0.sock < poc_0.sql
```

where `poc_0.sql` is:

```sql
drop database if exists test123;
create database test123;
use test123;
CREATE TABLE IF NOT EXISTS v0 ( c1 INT ) ;
INSERT INTO v0 SET c1 = c1 IS TRUE;
HANDLER v0 OPEN ;
HANDLER v0 READ FIRST WHERE c1 MEMBER ( c1 ) IS NOT FALSE LIMIT 100 , 100 ;
```

Suggested fix:
The server should continue running instead of crashing by Assertion Failure.

Hello Yu Liang,

Thank you for the report and test case.
Observed that 8.0.33 debug build is affected.

regards,
Umesh

-- release build - not affected
 ./mtr bug111449 --nocheck-testcases
Logging: ./mtr  bug111449 --nocheck-testcases
MySQL Version 8.0.33
Checking supported features
Using 'all' suites
Collecting tests
Checking leftover processes
Removing old var directory
 - WARNING: Using the 'mysql-test/var' symlink
Creating var directory '/export/home/tmp/ushastry/mysql-8.0.33/mysql-test/var'
Installing system database
Using parallel: 1

==============================================================================
                  TEST NAME                       RESULT  TIME (ms) COMMENT
------------------------------------------------------------------------------
drop database if exists test123;
Warnings:
Note    1008    Can't drop database 'test123'; database doesn't exist
create database test123;
use test123;
CREATE TABLE IF NOT EXISTS v0 ( c1 INT ) ;
INSERT INTO v0 SET c1 = c1 IS TRUE;
HANDLER v0 OPEN ;
HANDLER v0 READ FIRST WHERE c1 MEMBER ( c1 ) IS NOT FALSE LIMIT 100 , 100 ;
[ 50%] main.bug111449                            [ fail ]
        Test ended at 2023-06-16 08:35:42

CURRENT_TEST: main.bug111449
mysqltest: At line 7: Query 'HANDLER v0 READ FIRST WHERE c1 MEMBER ( c1 ) IS NOT FALSE LIMIT 100 , 100 ' failed.
ERROR 3146 (22032): Invalid data type for JSON data in argument 2 to function member of; a JSON string or JSON type is required.
safe_process[17879]: Child process: 17880, exit: 1

 - the logfile can be found in '/export/home/tmp/ushastry/mysql-8.0.33/mysql-test/var/log/main.bug111449/bug111449.log'

[100%] shutdown_report                           [ pass ]

-- debug build - affected
 ./mtr bug111449 --nocheck-testcases --debug-server
Logging: ./mtr  bug111449 --nocheck-testcases --debug-server
MySQL Version 8.0.33
Checking supported features
 - Binaries are debug compiled
Using 'all' suites
Collecting tests
Checking leftover processes
Removing old var directory
 - WARNING: Using the 'mysql-test/var' symlink
Creating var directory '/export/home/tmp/ushastry/mysql-8.0.33/mysql-test/var'
Installing system database
Using parallel: 1

==============================================================================
                  TEST NAME                       RESULT  TIME (ms) COMMENT
------------------------------------------------------------------------------
drop database if exists test123;
Warnings:
Note    1008    Can't drop database 'test123'; database doesn't exist
create database test123;
use test123;
CREATE TABLE IF NOT EXISTS v0 ( c1 INT ) ;
INSERT INTO v0 SET c1 = c1 IS TRUE;
HANDLER v0 OPEN ;
HANDLER v0 READ FIRST WHERE c1 MEMBER ( c1 ) IS NOT FALSE LIMIT 100 , 100 ;
[ 50%] main.bug111449                            [ fail ]
        Test ended at 2023-06-16 08:36:03

CURRENT_TEST: main.bug111449
mysqltest: At line 7: Query 'HANDLER v0 READ FIRST WHERE c1 MEMBER ( c1 ) IS NOT FALSE LIMIT 100 , 100 ' failed.
ERROR 2013 (HY000): Lost connection to MySQL server during query

-bt
#0  0x00007f753076aaa1 in pthread_kill () from /lib64/libpthread.so.0
#1  0x0000000003f9296e in my_write_core(int) ()
#2  0x00000000032365f5 in handle_fatal_signal ()
#3  <signal handler called>
#4  0x00007f752e9a4387 in raise () from /lib64/libc.so.6
#5  0x00007f752e9a5a78 in abort () from /lib64/libc.so.6
#6  0x00007f752e99d1a6 in __assert_fail_base () from /lib64/libc.so.6
#7  0x00007f752e99d252 in __assert_fail () from /lib64/libc.so.6
#8  0x000000000307000a in Diagnostics_area::set_eof_status(THD*) ()
#9  0x000000000302b9b4 in my_eof(THD*) ()
#10 0x000000000308965c in Sql_cmd_handler_read::execute(THD*) ()
#11 0x00000000030c4964 in mysql_execute_command(THD*, bool) ()
#12 0x00000000030c5dc9 in dispatch_sql_command(THD*, Parser_state*) ()
#13 0x00000000030c752b in dispatch_command(THD*, COM_DATA const*, enum_server_command) ()
#14 0x00000000030c926e in do_command(THD*) ()
#15 0x0000000003227bb7 in handle_connection ()
#16 0x0000000004743af9 in pfs_spawn_thread ()
#17 0x00007f7530765ea5 in start_thread () from /lib64/libpthread.so.0
#18 0x00007f752ea6cb2d in clone () from /lib64/libc.so.6

Fixed in MySQL 8.2.0.

Does not affect a release.

Closed.