502 Gateway Timeout with error exited on signal 7 (SIGBUS) after clearing cache (nginx with php5-fpm)

[degoya]

Lukas Tribus Wrote:
-------------------------------------------------------
> > installed on a openVZ VPS with 24GB Ram and 12 Cores also tested on
> a
> > physical machine with 32GB ram and 8 cores. both managed with
> ISPconfig3.
> >
> > PHP 5.4.39-1~dotdeb.1 (fpm-fcgi) (built: Mar 22 2015 08:08:54)
> > nginx/1.6.2
> > mysql
> 
> PHP crashes, report the problem to whoever is providing support for
> this
> dotdeb package or install the proper package from your distribution.
> 
> Debian stable ships PHP 5.4.39, it doesn't make any sense to use
> dotdeb.

i've gemoved the dotdeb php package and installed the php that is shipped by
debian.

PHP 5.4.39-0+deb7u2 (fpm-fcgi) (built: Mar 25 2015 08:35:25)
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2014 Zend Technologies

still the same result:
[29-Mar-2015 15:13:55.673640] DEBUG: pid 29675, fpm_got_signal(), line 76:
received SIGCHLD
[29-Mar-2015 15:13:55.673690] WARNING: pid 29675, fpm_children_bury(), line
252: [pool web92] child 29711 exited on signal 7 (SIGBUS) after 169.674900
seconds from start
[29-Mar-2015 15:13:55.674695] NOTICE: pid 29675, fpm_children_make(), line
421: [pool web92] child 29859 started
[29-Mar-2015 15:13:55.674734] DEBUG: pid 29675, fpm_event_loop(), line 419:
event module triggered 1 events
[29-Mar-2015 15:13:55.715464] DEBUG: pid 29675, fpm_got_signal(), line 76:
received SIGCHLD
[29-Mar-2015 15:13:55.715498] WARNING: pid 29675, fpm_children_bury(), line
252: [pool web92] child 29779 exited on signal 7 (SIGBUS) after 102.643864
seconds from start
[29-Mar-2015 15:13:55.716048] NOTICE: pid 29675, fpm_children_make(), line
421: [pool web92] child 29860 started
[29-Mar-2015 15:13:55.716063] DEBUG: pid 29675, fpm_event_loop(), line 419:
event module triggered 1 events
[29-Mar-2015 15:13:56.181544] DEBUG: pid 29675,
fpm_pctl_perform_idle_server_maintenance(), line 379: [pool web92] currently
5 active children, 0 spare children, 5 running children. Spawning rate 1

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,257732,257734#msg-257734