MySQL Bugs: #111443: Assertion `has_error == thd->get_stmt_da()->is

Bug #111443	Assertion `has_error == thd->get_stmt_da()->is_error()' failed
Submitted:	15 Jun 2023 19:08	Modified:	21 Jul 2023 20:24
Reporter:	Yu Liang	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Server: DML	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 v0 ( c1 SERIAL ) PARTITION BY RANGE ( c1 ) SUBPARTITION BY LINEAR HASH ( c1 DIV - c1 ) ( PARTITION p2 VALUES LESS THAN MAXVALUE ) ;
INSERT v0 SET c1 = CONVERT ( 0.0 , CHAR UNICODE BINARY ) ;
```

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

```
mysql> INSERT v0 SET c1 = CONVERT ( 0.0 , CHAR UNICODE BINARY ) ;
mysqld: /home/mysql/mysql-server/sql/sql_insert.cc:637: virtual bool Sql_cmd_insert_values::execute_inner(THD *): Assertion `has_error == thd->get_stmt_da()->is_error()' failed.
2023-06-15T19:04:36Z 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: 0xffff00001040
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 = ffffa421d538 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) [0xffffa80bf7a0]
/lib/aarch64-linux-gnu/libc.so.6(gsignal+0xe0) [0xffffa7733d78]
/lib/aarch64-linux-gnu/libc.so.6(abort+0x114) [0xffffa7720aac]
/lib/aarch64-linux-gnu/libc.so.6(+0x2d490) [0xffffa772d490]
/lib/aarch64-linux-gnu/libc.so.6(+0x2d4f4) [0xffffa772d4f4]
/home/mysql/mysql-server/bld/runtime_output_directory/mysqld(Sql_cmd_insert_values::execute_inner(THD*)+0x1a80) [0x25b10f0]
/home/mysql/mysql-server/bld/runtime_output_directory/mysqld(Sql_cmd_dml::execute(THD*)+0x7a0) [0x1737e1c]
/home/mysql/mysql-server/bld/runtime_output_directory/mysqld(mysql_execute_command(THD*, bool)+0x3884) [0x162cd40]
/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) [0xffffa8065624]
/lib/aarch64-linux-gnu/libc.so.6(+0xd149c) [0xffffa77d149c]

Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (ffff001db6c0): INSERT v0 SET c1 = CONVERT ( 0.0 , CHAR UNICODE BINARY )
Connection ID (thread ID): 8
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 -DUSE_LD_GOLD=1 -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 v0 ( c1 SERIAL ) PARTITION BY RANGE ( c1 ) SUBPARTITION BY LINEAR HASH ( c1 DIV - c1 ) ( PARTITION p2 VALUES LESS THAN MAXVALUE ) ;
INSERT v0 SET c1 = CONVERT ( 0.0 , CHAR UNICODE BINARY ) ;
```

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 bug111443 --nocheck-testcases
Logging: ./mtr  bug111443 --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 v0 ( c1 SERIAL ) PARTITION BY RANGE ( c1 ) SUBPARTITION BY LINEAR HASH ( c1 DIV - c1 ) ( PARTITION p2 VALUES LESS THAN MAXVALUE ) ;
INSERT v0 SET c1 = CONVERT ( 0.0 , CHAR UNICODE BINARY ) ;
Warnings:
Warning 1287    'UNICODE' is deprecated and will be removed in a future release. Please use CHARACTER SET charset_name instead
Warning 1287    'BINARY as attribute of a type' is deprecated and will be removed in a future release. Please use a CHARACTER SET clause with _bin collation instead
Error   1690    BIGINT UNSIGNED value is out of range in '(`c1` DIV -(`c1`))'
[ 50%] main.bug111443                            [ pass ]      7
[100%] shutdown_report                           [ pass ]

-- debug build - affected

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 v0 ( c1 SERIAL ) PARTITION BY RANGE ( c1 ) SUBPARTITION BY LINEAR HASH ( c1 DIV - c1 ) ( PARTITION p2 VALUES LESS THAN MAXVALUE ) ;
INSERT v0 SET c1 = CONVERT ( 0.0 , CHAR UNICODE BINARY ) ;
[ 50%] main.bug111443                            [ fail ]
        Test ended at 2023-06-16 06:31:51

CURRENT_TEST: main.bug111443
mysqltest: At line 5: Query 'INSERT v0 SET c1 = CONVERT ( 0.0 , CHAR UNICODE BINARY ) ' failed.
ERROR 2013 (HY000): Lost connection to MySQL server during query

#0  0x00007f7b9d6d0aa1 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  0x00007f7b9b90a387 in raise () from /lib64/libc.so.6
#5  0x00007f7b9b90ba78 in abort () from /lib64/libc.so.6
#6  0x00007f7b9b9031a6 in __assert_fail_base () from /lib64/libc.so.6
#7  0x00007f7b9b903252 in __assert_fail () from /lib64/libc.so.6
#8  0x000000000358ebb4 in Sql_cmd_insert_values::execute_inner(THD*) ()
#9  0x0000000003123873 in Sql_cmd_dml::execute(THD*) ()
#10 0x00000000030c24af in mysql_execute_command(THD*, bool) ()
#11 0x00000000030c5dc9 in dispatch_sql_command(THD*, Parser_state*) ()
#12 0x00000000030c752b in dispatch_command(THD*, COM_DATA const*, enum_server_command) ()
#13 0x00000000030c926e in do_command(THD*) ()
#14 0x0000000003227bb7 in handle_connection ()
#15 0x0000000004743af9 in pfs_spawn_thread ()
#16 0x00007f7b9d6cbea5 in start_thread () from /lib64/libpthread.so.0
#17 0x00007f7b9b9d2b2d in clone () from /lib64/libc.so.6

Posted by developer:
 
Fixed as of the upcoming MySQL 8.2.0 release, and here's the proposed changelog entry from the documentation team:

In some cases, an unexpected server exit followed a partitioning function
error.

Thank you for the bug report.

Thank you for the patch and the changelog information. We will keep track of the bug fix when the new version of the MySQL release.