Comment 5 for bug 553982

No - it only happened once.

Is there anything I can/should do when I next rebuild Maria and
install a new version so that I can be more useful if I run into a
bug?

(Also, have I mentioned how much I appreciate the insanely fast InnoDB
recovery time in Maria/XtraDB/InnoDB plugin? Good work, whoever worked
on that)

Casey

On Tue, 11 May 2010, Sergey Petrunia wrote:

>
>> In case it helps, I compiled from the source on
>> Linux 2.6.31-gentoo-r6 SMP x86_64
> <skip>
>
> Thanks for the info. Alas, that won't be of much help because it
> doesn't allow to resolve the stack trace. (Is there anybody looking at
> this bug who could tell if the posted stack trace looks like real one at
> all? We see "thd->query at 0x7f0ad43b3938 is an invalid pointer" which
> could be an indication that stack has been damaged?)
>
> Casey, does the problem continue to show up with any regularity?
>
> --
> InnoDB crash: Assertion failure... in file ../../storage/xtradb/include/buf0buf.ic line 544
> https://bugs.launchpad.net/bugs/553982
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in Maria: Incomplete
>
> Bug description:
> Sorry that this isn't much of a report. Let me know if I can provide more info.
>
> MariaDB 5.1.39 crashed - the error log reports:
>
>
> 100402 4:26:23 InnoDB: Assertion failure in thread 139685025216272 in file ../../storage/xtradb/include/buf0buf.ic line 544
> InnoDB: Failing assertion: buf_page_in_file(bpage)
> InnoDB: We intentionally generate a memory trap.
> InnoDB: Submit a detailed bug report to http://bugs.mysql.com.
> InnoDB: If you get repeated assertion failures or crashes, even
> InnoDB: immediately after the mysqld startup, there may be
> InnoDB: corruption in the InnoDB tablespace. Please refer to
> InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-recovery.html
> InnoDB: about forcing recovery.
> 100402 4:26:23 - mysqld got signal 6 ;
> 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.
> We will try our best to scrape up some info that will hopefully help diagnose
> the problem, but since we have already crashed, something is definitely wrong
> and this may fail.
>
> key_buffer_size=1073741824
> read_buffer_size=131072
> max_used_connections=154
> max_threads=202
> threads_connected=74
> It is possible that mysqld could use up to
> key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 1903909 K
> bytes of memory
> Hope that's ok; if not, decrease some variables in the equation.
>
> thd: 0x7f0adc40de30
> 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 = 0x7f0af44eed40 thread_stack 0x48000
> [0x82cf44]
> [0x4ad227]
> [0x60b860]
> [0x8bfc35]
> [0x888691]
> [0x7c9f6f]
> [0x7b88e1]
> [0x7b8e8a]
> [0x77ce65]
> [0x77f4c6]
> [0x726319]
> [0x57ba69]
> [0x50bb81]
> [0x50bf5f]
> [0x51b4be]
> [0x51ccf0]
> [0x51d70c]
> [0x4b814f]
> [0x4ba821]
> [0x4be39b]
> [0x4c0303]
> [0x4c0c86]
> [0x4b3dbb]
> [0x6077f0]
> [0x8abe19]
> Trying to get some variables.
> Some pointers may be invalid and cause the dump to abort...
> thd->query at 0x7f0ad43b3938 is an invalid pointer
> thd->thread_id=1004063
> thd->killed=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.
> 100402 04:26:27 mysqld_safe Number of processes running now: 0
> 100402 04:26:27 mysqld_safe mysqld restarted
>
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>
>