Bug #63407 [NEW]: segmentation fault in zval_mark_grey()

From: Date: Wed, 31 Oct 2012 22:55:44 +0000
Subject: Bug #63407 [NEW]: segmentation fault in zval_mark_grey()
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-174454@lists.php.net to get a copy of this message 
From:             berdir
Operating system: linux
PHP version:      5.4.8
Package:          Reproducible crash
Bug Type:         Bug
Bug description:segmentation fault in zval_mark_grey()

Description:
------------
I'm experiencing segfaults in the mentioned function while working on
Drupal 8. 
Here's what I found out so far:

- Happens both with the default ubuntu 12.04 php 5.3.10 and php 5.4.8 from

https://launchpad.net/~ondrej/+archive/php5
- See http://drupal.org/node/512026#comment-6673974
for the backtrace
- Happens both on my local installation and our automated testbots
- The segfault does not happen if zend.enable_gc is Off.

It's non-trivial to set up, see "script" below, so just tell me what
commands to 
run in gdb to give you additional information if required.

Test script:
---------------
git clone git@git.drupal.org:project/drupal.git --branch=8.x
# Install Drupal, enable Testing module.
wget http://drupal.org/files/form-state-keyvalue-512026-98.patch
git apply form-state-keyvalue-512026-98.patch

php core/scripts/run-tests.sh --class
"Drupal\views\Tests\Handler\FilterStringTest"


Expected result:
----------------
Drupal test run
---------------

Tests to be run:
 -  (Drupal\views\Tests\Handler\FilterStringTest)

Test run started:
 Wednesday, October 31, 2012 - 23:50

Test summary
------------

Filter: String n passes, 0 fails, and 0 exception

Test run duration: n sec

Actual result:
--------------
Drupal test run
---------------

Tests to be run:
 -  (Drupal\views\Tests\Handler\FilterStringTest)

Test run started:
 Wednesday, October 31, 2012 - 23:50

Test summary
------------

Segmentation fault (core dumped)
FATAL Drupal\views\Tests\Handler\FilterStringTest: test runner returned a
non-
zero error code (139).
- Found database prefix 'simpletest916618' for test ID 372.
- Removed test files directory.
- Removed 43 leftover tables.

Test run duration: 11 sec


-- 
Edit bug report at https://bugs.php.net/bug.php?id=63407&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=63407&r=trysnapshot54
Try a snapshot (PHP 5.3):   https://bugs.php.net/fix.php?id=63407&r=trysnapshot53
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=63407&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=63407&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=63407&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=63407&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=63407&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=63407&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=63407&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=63407&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=63407&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=63407&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=63407&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=63407&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=63407&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=63407&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=63407&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=63407&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=63407&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=63407&r=mysqlcfg

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