Bug #62886 [Asn->Fbk]: PHP-FPM may segfault/hang on startup

Edit report at https://bugs.php.net/bug.php?id=62886&edit=1 ID: 62886 Updated by: fat@php.net Reported by: pierre at archlinux dot de Summary: PHP-FPM may segfault/hang on startup -Status: Assigned +Status: Feedback Type: Bug Package: FPM related Operating System: Arch Linux PHP Version: 5.4.6 Assigned To: fat Block user comment: N Private report: N New Comment: Can you please test the following path ? The commit you mentioned to be faulty in fact did the following things: when daemonize, the calling process waited 10s for the master process (which have been forked just before) to send USR1 if OK or USR2 otherwise. There must be a problem with some external libraries using USR1 and USR2. I've removed the signal stuff and have it replaced by a pipe(2). Can you please test and tell me if it fix your problem (which I never been able to reproduce on my side). thx ++ fat Previous Comments: ------------------------------------------------------------------------ [2012-09-26 19:28:24] fat@php.net The following patch has been added/updated: Patch Name: bug62886.patch.txt Revision: 1348687704 URL: https://bugs.php.net/patch-display.php?bug=62886&patch=bug62886.patch.txt&revision=1348687704 ------------------------------------------------------------------------ [2012-09-20 10:40:48] hsatac at golang dot tw Having the same issue. Archlinux + PHP 5.4.7 ------------------------------------------------------------------------ [2012-09-17 09:59:00] pierre at archlinux dot de It also crashes with the imap extension disabled. But it seems the number of enabled extensions might matter. Anyway, we have a backtrace and the commit that introduced this issue. ------------------------------------------------------------------------ [2012-09-17 09:55:04] daniel at bashgeek dot net Have the same problem on my end with a couple of servers. For me the problem is solved as soon as I disable the IMAP extension of PHP. Maybe it has something todo with this extension? ------------------------------------------------------------------------ [2012-09-12 16:32:02] jeffrey dot ness at rackspace dot com I am also noticing this issue with our 5.3.16 packages: # php-fpm -v PHP 5.3.16 (fpm-fcgi) (built: Aug 20 2012 10:39:20) Copyright (c) 1997-2009 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2012 Zend Technologies # for i in {1..100}; do php-fpm ; killall php-fpm; done Segmentation fault Segmentation fault Segmentation fault # dmesg | grep php-fpm php-fpm[30800]: segfault at 7f7d199f4cd0 ip 00007f7d24a43b83 sp 00007fffdd48fb20 error 4 in ld- 2.12.so[7f7d24a35000+20000] php-fpm[31599]: segfault at 7f50f17c3cd0 ip 00007f50fc812b83 sp 00007fff09f13120 error 4 in ld- 2.12.so[7f50fc804000+20000] php-fpm[32009]: segfault at 7f3005f59cc0 ip 00007f3010938b83 sp 00007fffb291c3a0 error 4 in ld- 2.12.so[7f301092a000+20000] php-fpm[32313]: segfault at 7f17094a4cc0 ip 00007f1713e83b83 sp 00007fffaab94e20 error 4 in ld- 2.12.so[7f1713e75000+20000] php-fpm[32585]: segfault at 7f60ad427cc0 ip 00007f60b7e06b83 sp 00007ffff44e06a0 error 4 in ld- 2.12.so[7f60b7df8000+20000] ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=62886 -- Edit this bug report at https://bugs.php.net/bug.php?id=62886&edit=1