I have found that after requesting several php pages in succesion, the page load time seems to slow down, before eventually not loading, and giving 504.
I can't find any relevant errors except this in the php5-fpm log
[13-Dec-2013 17:53:41] WARNING: [pool web36] child 6797 exited on signal 9 (SIGKILL) after 3165.155870 seconds from start [13-Dec-2013 17:53:41] NOTICE: [pool web36] child 8078 started [13-Dec-2013 17:55:15] WARNING: [pool web36] child 7848 exited on signal 9 (SIGKILL) after 633.767987 seconds from start [13-Dec-2013 17:55:15] NOTICE: [pool web36] child 8100 started [13-Dec-2013 17:56:19] WARNING: [pool web36] child 7914 exited on signal 11 (SIGSEGV) after 455.341786 seconds from start
How should I troubleshoot from here on in?
Ubuntu 12.04.1 LTS (GNU/Linux 3.2.0-31-generic x86_64) PHP 5.3.10-1ubuntu3.5 with Suhosin-Patch nginx/1.1.19