MySQL Bugs: #77747: Crash on "show global status like '%ssl%'"

Bug #77747	Crash on "show global status like '%ssl%'"
Submitted:	16 Jul 2015 20:09	Modified:	8 Nov 2015 10:58
Reporter:	Daniël van Eeden (OCA)	Email Updates:
Status:	Can't repeat	Impact on me:	None
Category:	MySQL Server	Severity:	S2 (Serious)
Version:	5.7.8	OS:	Any
Assigned to:		CPU Architecture:	Any
Tags:	crash

Description:
This happened directly after startup. This was the first startup after using mysql_ssl_rsa_setup to enable SSL

This was on Fedora 22 with MySQL Sandbox.

How to repeat:
[dvaneeden@dve-mac msb_5_7_8]$ ./my sql --ssl-ca=data/ca.pem --ssl -h 127.0.0.1
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 5
Server version: 5.7.8-rc MySQL Community Server (GPL)

Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql [127.0.0.1] {msandbox} ((none)) > \s
--------------
/opt/mysql/5.7.8/bin/mysql  Ver 14.14 Distrib 5.7.8-rc, for linux-glibc2.5 (x86_64) using  EditLine wrapper

Connection id:		5
Current database:	
Current user:		msandbox@localhost
SSL:			Cipher in use is DHE-RSA-AES256-SHA
Current pager:		stdout
Using outfile:		''
Using delimiter:	;
Server version:		5.7.8-rc MySQL Community Server (GPL)
Protocol version:	10
Connection:		127.0.0.1 via TCP/IP
Server characterset:	latin1
Db     characterset:	latin1
Client characterset:	utf8
Conn.  characterset:	utf8
TCP port:		5708
Uptime:			1 min 33 sec

Threads: 1  Questions: 18  Slow queries: 0  Opens: 107  Flush tables: 1  Open tables: 26  Queries per second avg: 0.193
--------------

mysql [127.0.0.1] {msandbox} ((none)) > show global status like '%ssl%';
19:14:17 UTC - mysqld got signal 11 ;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.
Attempting to collect some information that could help diagnose the problem.
As this is a crash and something is definitely wrong, the information
collection process might fail.

key_buffer_size=8388608
read_buffer_size=131072
max_used_connections=1
max_threads=151
thread_count=1
connection_count=1
It is possible that mysqld could use up to 
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 68135 K  bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x7f4e000135e0
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 = 7f4e4aa95ea8 thread_stack 0x40000
/opt/mysql/5.7.8/bin/mysqld(my_print_stacktrace+0x35)[0xed9825]
/opt/mysql/5.7.8/bin/mysqld(handle_fatal_signal+0x4a4)[0x763ae4]
/lib64/libpthread.so.0(+0x10430)[0x7f4e752b4430]
/opt/mysql/5.7.8/bin/mysqld[0x125c1e5]
/opt/mysql/5.7.8/bin/mysqld[0x753898]
/opt/mysql/5.7.8/bin/mysqld(_ZN25PFS_status_variable_cache8manifestEP3THDPK17st_mysql_show_varP17system_status_varPKcbb+0x1c4)[0x11c5a04]
/opt/mysql/5.7.8/bin/mysqld(_ZN25PFS_status_variable_cache21do_materialize_globalEv+0x95)[0x11c7ef5]
/opt/mysql/5.7.8/bin/mysqld(_ZN19table_global_status8rnd_initEb+0x9c)[0x11f300c]
/opt/mysql/5.7.8/bin/mysqld(_ZN13ha_perfschema8rnd_initEb+0x3c)[0x1199a1c]
/opt/mysql/5.7.8/bin/mysqld(_ZN7handler11ha_rnd_initEb+0x19)[0x7a32d9]
/opt/mysql/5.7.8/bin/mysqld(_Z16init_read_recordP11READ_RECORDP3THDP5TABLEP7QEP_TABibb+0x553)[0xc2ba93]
/opt/mysql/5.7.8/bin/mysqld(_Z21join_init_read_recordP7QEP_TAB+0xae)[0xc920ce]
/opt/mysql/5.7.8/bin/mysqld(_Z10sub_selectP4JOINP7QEP_TABb+0x2b2)[0xc933b2]
/opt/mysql/5.7.8/bin/mysqld(_ZN4JOIN4execEv+0x282)[0xc91932]
/opt/mysql/5.7.8/bin/mysqld(_Z12handle_queryP3THDP3LEXP12Query_resultyy+0x248)[0xcfc258]
/opt/mysql/5.7.8/bin/mysqld[0xcbdb33]
/opt/mysql/5.7.8/bin/mysqld(_Z21mysql_execute_commandP3THD+0x15dd)[0xcbf38d]
/opt/mysql/5.7.8/bin/mysqld(_Z11mysql_parseP3THDP12Parser_state+0x3a8)[0xcc2e98]
/opt/mysql/5.7.8/bin/mysqld(_Z16dispatch_commandP3THDP8COM_DATA19enum_server_command+0x1232)[0xcc4142]
/opt/mysql/5.7.8/bin/mysqld(_Z10do_commandP3THD+0x194)[0xcc5314]
/opt/mysql/5.7.8/bin/mysqld(handle_connection+0x28c)[0xd8d55c]
/opt/mysql/5.7.8/bin/mysqld(pfs_spawn_thread+0x160)[0x119d0e0]
/lib64/libpthread.so.0(+0x7555)[0x7f4e752ab555]
/lib64/libc.so.6(clone+0x6d)[0x7f4e73f01b9d]

Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (7f4e00000960): show global status like '%ssl%'
Connection ID (thread ID): 5
Status: NOT_KILLED

The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
information that should help you find out what is causing the crash.
ERROR 2013 (HY000): Lost connection to MySQL server during query
mysql [127.0.0.1] {msandbox} ((none)) > 150716 21:14:18 mysqld_safe Number of processes running now: 0
150716 21:14:18 mysqld_safe mysqld restarted

Set to "S2 (Serious)"

With the help of c++filt:

/opt/mysql/5.7.8/bin/mysqld(my_print_stacktrace+0x35)[0xed9825]
/opt/mysql/5.7.8/bin/mysqld(handle_fatal_signal+0x4a4)[0x763ae4]
/lib64/libpthread.so.0(+0x10430)[0x7f4e752b4430]
/opt/mysql/5.7.8/bin/mysqld[0x125c1e5]
/opt/mysql/5.7.8/bin/mysqld[0x753898]
/opt/mysql/5.7.8/bin/mysqld(PFS_status_variable_cache::manifest(THD*, st_mysql_show_var const*, system_status_var*, char const*, bool, bool)+0x1c4)[0x11c5a04]
/opt/mysql/5.7.8/bin/mysqld(PFS_status_variable_cache::do_materialize_global()+0x95)[0x11c7ef5]
/opt/mysql/5.7.8/bin/mysqld(table_global_status::rnd_init(bool)+0x9c)[0x11f300c]
/opt/mysql/5.7.8/bin/mysqld(ha_perfschema::rnd_init(bool)+0x3c)[0x1199a1c]
/opt/mysql/5.7.8/bin/mysqld(handler::ha_rnd_init(bool)+0x19)[0x7a32d9]
/opt/mysql/5.7.8/bin/mysqld(init_read_record(READ_RECORD*, THD*, TABLE*, QEP_TAB*, int, bool, bool)+0x553)[0xc2ba93]
/opt/mysql/5.7.8/bin/mysqld(join_init_read_record(QEP_TAB*)+0xae)[0xc920ce]
/opt/mysql/5.7.8/bin/mysqld(sub_select(JOIN*, QEP_TAB*, bool)+0x2b2)[0xc933b2]
/opt/mysql/5.7.8/bin/mysqld(JOIN::exec()+0x282)[0xc91932]
/opt/mysql/5.7.8/bin/mysqld(handle_query(THD*, LEX*, Query_result*, unsigned long long, unsigned long long)+0x248)[0xcfc258]
/opt/mysql/5.7.8/bin/mysqld[0xcbdb33]
/opt/mysql/5.7.8/bin/mysqld(mysql_execute_command(THD*)+0x15dd)[0xcbf38d]
/opt/mysql/5.7.8/bin/mysqld(mysql_parse(THD*, Parser_state*)+0x3a8)[0xcc2e98]
/opt/mysql/5.7.8/bin/mysqld(dispatch_command(THD*, COM_DATA*, enum_server_command)+0x1232)[0xcc4142]
/opt/mysql/5.7.8/bin/mysqld(do_command(THD*)+0x194)[0xcc5314]
/opt/mysql/5.7.8/bin/mysqld(handle_connection+0x28c)[0xd8d55c]
/opt/mysql/5.7.8/bin/mysqld(pfs_spawn_thread+0x160)[0x119d0e0]
/lib64/libpthread.so.0(+0x7555)[0x7f4e752ab555]
/lib64/libc.so.6(clone+0x6d)[0x7f4e73f01b9d]

When I tried I couldn't reproduce this crash, so I probably missed something which triggers this.

If I understood your last comment you aren't able to repeat the crash, right?

That's correct

was this a self-built mysqld ?  or which exact package is it from ?

http://bugs.mysql.com/bug.php?id=78476

couldn't repeat on 5.7.9 (where hidden bug #78476 ) is fixed.