[MDEV-14107] SEGV at fil_io Created: 2017-10-23  Updated: 2017-11-27  Resolved: 2017-11-27

Status: Closed
Project: MariaDB Server
Component/s: Server
Affects Version/s: 10.2.7
Fix Version/s: N/A

Type: Bug Priority: Major
Reporter: kenorb Assignee: Unassigned
Resolution: Cannot Reproduce Votes: 0
Labels: need_feedback
Environment:

macOS Sierra

Attachments: File mysqld_2017-10-10-151849_kenorb.crash    

 Description   

I've experienced the following SEGV crash:

Crashed Thread:        16
 
 
 
Exception Type:        EXC_CRASH (SIGABRT)
 
Exception Codes:       0x0000000000000000, 0x0000000000000000
 
Exception Note:        EXC_CORPSE_NOTIFY
 
 
 
Termination Signal:    Abort trap: 6
 
Termination Reason:    Namespace SIGNAL, Code 0x6
 
Terminating Process:   mysqld [13008]
 
 
 
Application Specific Information:
 
abort() called
 
 
 
Thread 16 Crashed:
 
0   libsystem_kernel.dylib        	0x00007fffc6b7d716 __kill + 10
 
1   mysqld                        	0x0000000105c1ddfd handle_fatal_signal + 1257
 
2   libsystem_platform.dylib      	0x00007fffc6c5bbba _sigtramp + 26
 
3   ???                           	0x0000000100000001 0 + 4294967297
 
4   libsystem_c.dylib             	0x00007fffc6ae3440 abort + 129
 
5   mysqld                        	0x00000001060d6819 ut_dbg_assertion_failed(char const*, char const*, unsigned int) + 131
 
6   mysqld                        	0x0000000105f98e16 fil_io(IORequest const&, bool, page_id_t const&, page_size_t const&, unsigned long, unsigned long, void*, void*) + 2483
 
7   mysqld                        	0x000000010602483d log_write_up_to(unsigned long long, bool) + 2308
 
8   mysqld                        	0x00000001060a9e22 srv_sync_log_buffer_in_background() + 72
 
9   mysqld                        	0x00000001060a8678 srv_master_thread + 1107
 
10  libsystem_pthread.dylib       	0x00007fffc6c65abb _pthread_body + 180
 
11  libsystem_pthread.dylib       	0x00007fffc6c65a07 _pthread_start + 286
 
12  libsystem_pthread.dylib       	0x00007fffc6c65231 thread_start + 13
 
 
 
       0x105bf6000 -        0x106606fff +mysqld (0) <0FE6942C-DA53-3868-8AC3-92918DCF1AF8> /usr/local/opt/mariadb/bin/mysqld

Check the attached crash log for more details.

 Comments   
Comment by Elena Stepanova [ 2017-10-23 ]

kenorb, is it repeatable, or was it a one-time thing?
Could you please attach the MariaDB server error log which shows the whole server session from the beginning of the startup prior to the crash and up to the end of the restart after the crash, it might contain some error messages either before the crash or upon crash recovery, and/or the query which triggered the crash.
Please also paste or attach your cnf file(s).

Comment by kenorb [ 2017-10-23 ]

This was a one-time thing. During that time I had few other crashes related to 'Too many open files in system' error before I had to increase the limit. Unfortunately I can't find the log. I hope this may help. If not, I won't be able to provide further details, then you may close the ticket.

Comment by Elena Stepanova [ 2017-10-23 ]

Whoever else has experienced the same problem and found this report, please pitch in.

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