Edit report at https://bugs.php.net/bug.php?id=62886&edit=1
ID: 62886
Comment by: pierre at archlinux dot de
Reported by: pierre at archlinux dot de
Summary: PHP-FPM may segfault/hang on startup
Status: Assigned
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:
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.
Previous Comments:
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[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?
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[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]
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[2012-08-24 09:06:27] pierre at archlinux dot de
I have attached php.ini and php-fpm.conf as patches (sorry, didn't fint another
way to attach those)
Here is what is different from the configuration shipped with PHP 5.4.6:
The php-fpm.conf is the plain upstream one with this patch applied:
https://projects.archlinux.de/svntogit/packages.git/tree/trunk/php-fpm.conf.in.patch?h=packages/php
php.ini is a copy of php.ini-production with this patch applied:
https://projects.archlinux.de/svntogit/packages.git/tree/trunk/php.ini.patch?h=packages/php
On top of that I applied the following changes locally:
http://paste.xinu.at/Hp6/
------------------------------------------------------------------------
[2012-08-24 08:46:19] f...@php.net
Not enough information was provided for us to be able
to handle this bug. Please re-read the instructions at
http://bugs.php.net/how-to-report.php
If you can provide more information, feel free to add it
to this bug and change the status back to "Open".
Thank you for your interest in PHP.
I also need your FPM configuration and your php.ini please
thanks
------------------------------------------------------------------------
[2012-08-24 08:37:27] pierre at archlinux dot de
I rebuild with debug symbols and got the following trace:
Core was generated by `php-fpm'.
Program terminated with signal 11, Segmentation fault.
#0 0x00007fc96b2c6ed6 in _dl_fini () from /lib/ld-linux-x86-64.so.2
(gdb) bt
#0 0x00007fc96b2c6ed6 in _dl_fini () from /lib/ld-linux-x86-64.so.2
#1 0x00007fc96970cb31 in __run_exit_handlers () from /lib/libc.so.6
#2 0x00007fc96970cbb5 in exit () from /lib/libc.so.6
#3 0x00000000008cb754 in fpm_signals_sighandler_exit_ok (pid=10) at
/build/src/php-5.4.6/sapi/fpm/fpm/fpm_signals.c:254
#4 <signal handler called>
#5 0x00007fc96b2cf3c7 in munmap () from /lib/ld-linux-x86-64.so.2
#6 0x00007fc96b2ceb4d in _dl_unmap () from /lib/ld-linux-x86-64.so.2
#7 0x00007fc96b2cba1f in _dl_close_worker () from /lib/ld-linux-x86-64.so.2
#8 0x00007fc96b2cc18c in _dl_close () from /lib/ld-linux-x86-64.so.2
#9 0x00007fc96b2c6736 in _dl_catch_error () from /lib/ld-linux-x86-64.so.2
#10 0x00007fc969fee5fc in ?? () from /lib/libdl.so.2
#11 0x00007fc969fee10f in dlclose () from /lib/libdl.so.2
#12 0x0000000000773e2c in module_destructor (module=0x1ba6050) at
/build/src/php-5.4.6/Zend/zend_API.c:2284
#13 0x000000000077c30f in zend_hash_apply_deleter (ht=0xfb5240
<module_registry>, p=0x1ba5ff0) at /build/src/php-5.4.6/Zend/zend_hash.c:650
#14 0x000000000077c4aa in zend_hash_graceful_reverse_destroy (ht=0xfb5240
<module_registry>) at /build/src/php-5.4.6/Zend/zend_hash.c:687
#15 0x0000000000771f97 in zend_destroy_modules () at
/build/src/php-5.4.6/Zend/zend_API.c:1797
#16 0x0000000000768e9e in zend_shutdown () at
/build/src/php-5.4.6/Zend/zend.c:823
#17 0x00000000006d5151 in php_module_shutdown () at
/build/src/php-5.4.6/main/main.c:2346
#18 0x00000000008c7e23 in fpm_php_cleanup (which=2, arg=0x0) at
/build/src/php-5.4.6/sapi/fpm/fpm/fpm_php.c:199
#19 0x00000000008bc629 in fpm_cleanups_run (type=2) at
/build/src/php-5.4.6/sapi/fpm/fpm/fpm_cleanup.c:45
#20 0x00000000008cf1df in fpm_unix_init_main () at
/build/src/php-5.4.6/sapi/fpm/fpm/fpm_unix.c:312
#21 0x00000000008bb2df in fpm_init (argc=1, argv=0x7fff252a4a98, config=0x0,
prefix=0x0, pid=0x0, test_conf=0, run_as_root=0) at
/build/src/php-5.4.6/sapi/fpm/fpm/fpm.c:59
#22 0x00000000008c7221 in main (argc=1, argv=0x7fff252a4a98) at
/build/src/php-5.4.6/sapi/fpm/fpm/fpm_main.c:1800
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