Bug #77955 [Com]: Random segmentation fault in mysqlnd from php-fpm

From: Date: Mon, 03 Jun 2019 06:02:36 +0000
Subject: Bug #77955 [Com]: Random segmentation fault in mysqlnd from php-fpm
References: 1  Groups: php.bugs 
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Edit report at https://bugs.php.net/bug.php?id=77955&edit=1

 ID:                 77955
 Comment by:         victoria at sharksmedia dot dk
 Reported by:        victoria at sharksmedia dot dk
 Summary:            Random segmentation fault in mysqlnd from php-fpm
 Status:             Closed
 Type:               Bug
 Package:            PDO MySQL
 Operating System:   CentOS 7.6.1810
 PHP Version:        7.3.4
 Assigned To:        dmitry
 Block user comment: N
 Private report:     N

 New Comment:

Hi Dmitry

I see the fixes weren't inclded in 7.3.6.

Will they be in 7.3.7, or do you need to have confirmation of it working before it is included in
the release?

As mentioned, i can't "just" run a debug build, as remi doesn't provide it and
wont help make one.

Can i compile a debug version of the php binary, and mysqlnd.so, and use that with all the
extensions not compiled in debug mode?
Or must ALL loaded binaries be compiled in the same debug mode?

Because, than i can just compile php, and replace the two binaries on the production server without
messing more with the production setup.


Previous Comments:
------------------------------------------------------------------------
[2019-05-24 05:24:42] victoria at sharksmedia dot dk

That looks good.

Will this fix be in 7.3.6?

Since we're using the remi repo, it is quite a task to compile it all to be a direct swapable
replacement (Remi couldn't provide info on how to compile his SRPMS)

------------------------------------------------------------------------
[2019-05-23 15:12:05] dmitry@php.net

Most probably, the bug is fixed by https://github.com/php/php-src/commit/6f9dfd947302f9a0d2fa6a78bf385b1ca7dafdf3

Victoria, it would be great if you could test your app, using DEBUG build of PHP-7.3 snapshot.

------------------------------------------------------------------------
[2019-05-23 11:41:41] nikic@php.net

Automatic comment on behalf of nikita.ppv@gmail.com
Revision: http://git.php.net/?p=php-src.git;a=commit;h=6f9dfd947302f9a0d2fa6a78bf385b1ca7dafdf3
Log: Fix bug #77955

------------------------------------------------------------------------
[2019-05-23 05:12:05] victoria at sharksmedia dot dk

Dmitry, can you some how guide me to whatever is necessary to catch the needed information? In a
week i'm updating that server anyway so i have a maintenance window of around 30 minutes where
i would be able to test things.

------------------------------------------------------------------------
[2019-05-22 21:34:41] dmitry@php.net

unfortunately, no updates. I need a way to reproduce this crash.

------------------------------------------------------------------------


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