Bug #63349 [NEW]: Segfault during GC

From: Date: Wed, 24 Oct 2012 20:48:11 +0000
Subject: Bug #63349 [NEW]: Segfault during GC
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-174270@lists.php.net to get a copy of this message 
From:             phpwnd at gmail dot com
Operating system: Gentoo Linux
PHP version:      5.4.8
Package:          Reproducible crash
Bug Type:         Bug
Bug description:Segfault during GC

Description:
------------
PHP 5.4.8 + XDebug 2.2.1, no other extensions

I've been experiencing a few segfaults lately. They've been a bit hard to
reproduce because so far I've only hit them when using PHP_CodeCoverage and
only on specific revisions of my code (adding or removing a single
statement such as "$a=1;" would keep it from happening.)

I have gotten around rebuilding PHP with all the debug bells and whistles
and the resulting backtrace (hopefully attached to this bug) indicates it's
related to GC and/or PCRE. Adding a call to gc_collect_cycles() fixed it
for me, at least for now.


-- 
Edit bug report at https://bugs.php.net/bug.php?id=63349&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=63349&r=trysnapshot54
Try a snapshot (PHP 5.3):   https://bugs.php.net/fix.php?id=63349&r=trysnapshot53
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=63349&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=63349&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=63349&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=63349&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=63349&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=63349&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=63349&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=63349&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=63349&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=63349&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=63349&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=63349&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=63349&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=63349&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=63349&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=63349&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=63349&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=63349&r=mysqlcfg

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