Edit report at https://bugs.php.net/bug.php?id=63097&edit=1
ID: 63097
Comment by: admin at yqed dot com
Reported by: admin at yqed dot com
Summary: Segfault on php-fpm service start
Status: Open
Type: Bug
Package: FPM related
Operating System: CentOS 5/6 64bits
PHP Version: 5.3.17
Block user comment: N
Private report: N
New Comment:
Some additional troubleshooting:
# DAEMON_COREFILE_LIMIT=unlimited strace -s 1024 -f /etc/init.d/php-fpm restart
2>&1 | grep -i SEGV
[pid 21884] --- SIGSEGV (Segmentation fault) @ 0 (0) ---
[pid 21883] <... wait4 resumed> [{WIFSIGNALED(s) && WTERMSIG(s) == SIGSEGV &&
WCOREDUMP(s)}], 0, NULL) = 21884
The above error occurs on a regular basis, no matter how many times I run the
strace:
# DAEMON_COREFILE_LIMIT=unlimited strace -s 1024 -f /etc/init.d/php-fpm restart
2>&1 | grep -i SEGV
[pid 21914] --- SIGSEGV (Segmentation fault) @ 0 (0) ---
[pid 21913] <... wait4 resumed> [{WIFSIGNALED(s) && WTERMSIG(s) == SIGSEGV &&
WCOREDUMP(s)}], 0, NULL) = 21914
I believe it could be related to this bug:
https://bugs.php.net/bug.php?id=61231
Previous Comments:
------------------------------------------------------------------------
[2012-09-16 01:36:48] admin at qyqed dot com
The segfault occurs randomly, I can restart the service several times without
issues. All of the sudden, it pops without explanation.
------------------------------------------------------------------------
[2012-09-16 01:34:28] admin at yqed dot com
The error format I get when I restart the php-fpm service:
# service php-fpm restart
Stopping php-fpm: [ OK ]
Starting php-fpm: /bin/bash: line 1: 20659 Segmentation fault
/usr/sbin/php-
fpm -y /etc/php-fpm/php-fpm.conf
[FAILED]
------------------------------------------------------------------------
[2012-09-16 01:25:02] admin at yqed dot com
Description:
------------
This issue started making surface with PHP 5.3.15 and is still present in
5.3.17
release. In /var/log/messages, you will see entries similar to:
hermes kernel: php-fpm[20659]: segfault at 00002aea5a750210 rip
0000003ca220da3e
rsp 00007fff6b7d56b0 error 4
I created a objdump which will help you precisely locate the current issue.
Test script:
---------------
php-fpm.debug objdump file: http://www.mediafire.com/?qbkjzbidj9b1zsr
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Edit this bug report at https://bugs.php.net/bug.php?id=63097&edit=1
