Public bug reported:
On Ubuntu Server 12.04 on amd64 (Intel Xeon E5620 CPU) php5-fpm randomly
crashes with the following message:
May 29 06:38:25 srv2 kernel: [315922.148835] php5-fpm[20902]: segfault at 0 ip
00007fecd9032558 sp 00007fff18136898 error 4 in
libc-2.15.so[7fecd8f00000+1b3000]
May 29 06:38:25 srv2 kernel: [315922.148849] php5-fpm/20902: potentially
unexpected fatal signal 11.
May 29 06:38:25 srv2 kernel: [315922.148851]
May 29 06:38:25 srv2 kernel: [315922.148853] CPU 7
May 29 06:38:25 srv2 kernel: [315922.148854] Modules linked in: vesafb psmouse
i7core_edac edac_core ioatdma dca serio_raw joydev mac_hid lp parport usbhid
hid e1000e megaraid_sas
May 29 06:38:25 srv2 kernel: [315922.148870]
May 29 06:38:25 srv2 kernel: [315922.148873] Pid: 20902, comm: php5-fpm Not
tainted 3.2.0-24-generic #39-Ubuntu Supermicro X8DTT-H/X8DTT-H
May 29 06:38:25 srv2 kernel: [315922.148878] RIP: 0033:[<00007fecd9032558>]
[<00007fecd9032558>] 0x7fecd9032557
May 29 06:38:25 srv2 kernel: [315922.148884] RSP: 002b:00007fff18136898
EFLAGS: 00010206
May 29 06:38:25 srv2 kernel: [315922.148887] RAX: 0000000000000000 RBX:
00007fecdb38b000 RCX: 0000000000000011
May 29 06:38:25 srv2 kernel: [315922.148890] RDX: 0000000000000066 RSI:
0000000000af8af5 RDI: 0000000000000000
May 29 06:38:25 srv2 kernel: [315922.148892] RBP: 00000000023cc228 R08:
0000000000000011 R09: 0000000000000000
May 29 06:38:25 srv2 kernel: [315922.148895] R10: 00007fecd9035750 R11:
00007fecd9081710 R12: 0000000000000001
May 29 06:38:25 srv2 kernel: [315922.148897] R13: 0000000000000000 R14:
0000000000000000 R15: 00000000023cc2f0
May 29 06:38:25 srv2 kernel: [315922.148901] FS: 00007fecdb382700(0000)
GS:ffff8803332e0000(0000) knlGS:0000000000000000
May 29 06:38:25 srv2 kernel: [315922.148904] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
May 29 06:38:25 srv2 kernel: [315922.148906] CR2: 0000000000000000 CR3:
0000000327434000 CR4: 00000000000006e0
May 29 06:38:25 srv2 kernel: [315922.148909] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
May 29 06:38:25 srv2 kernel: [315922.148912] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
May 29 06:38:25 srv2 kernel: [315922.148915] Process php5-fpm (pid: 20902,
threadinfo ffff88032aeec000, task ffff88032aa55bc0)
May 29 06:38:25 srv2 kernel: [315922.148917]
May 29 06:38:25 srv2 kernel: [315922.148919] Call Trace:
GDB information:
Core was generated by `php-fpm: pool mypool
'.
Program terminated with signal 11, Segmentation fault.
#0 __strstr_sse42 (s1=0x0, s2=<optimized out>) at
../sysdeps/x86_64/multiarch/strstr.c:175
175 ../sysdeps/x86_64/multiarch/strstr.c: No such file or directory.
(gdb) bt
#0 __strstr_sse42 (s1=0x0, s2=<optimized out>) at
../sysdeps/x86_64/multiarch/strstr.c:175
#1 0x0000000000736d13 in fpm_status_handle_request () at
/build/buildd/php5-5.3.10/sapi/fpm/fpm/fpm_status.c:128
#2 0x000000000042b4ab in main (argc=11237155, argv=0x0) at
/build/buildd/php5-5.3.10/sapi/fpm/fpm/fpm_main.c:1809
# uname -a
Linux srv2 3.2.0-24-generic #39-Ubuntu SMP Mon May 21 16:52:17 UTC 2012 x86_64
x86_64 x86_64 GNU/Linux
# dpkg -l |grep php
ii php-apc 3.1.7-1 APC (Alternative
PHP Cache) module for PHP 5
ii php5-cli 5.3.10-1ubuntu3.1 command-line
interpreter for the php5 scripting language
ii php5-common 5.3.10-1ubuntu3.1 Common files for
packages built from the php5 source
ii php5-curl 5.3.10-1ubuntu3.1 CURL module for
php5
ii php5-dbg 5.3.10-1ubuntu3.1 Debug symbols
for PHP5
ii php5-fpm 5.3.10-1ubuntu3.1 server-side,
HTML-embedded scripting language (FPM-CGI binary)
ii php5-gd 5.3.10-1ubuntu3.1 GD module for
php5
ii php5-mcrypt 5.3.5-0ubuntu1 MCrypt module
for php5
ii php5-memcache 3.0.6-1 memcache
extension module for PHP5
ii php5-mysql 5.3.10-1ubuntu3.1 MySQL module for
php5
The crash occurs several times per hour and is repeatable on two
different servers with the same software versions.
** Affects: ubuntu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1006738
Title:
php5-fpm segfaults with error 4 in libc-2.15.so
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