I am hosting a number of websites on my Debian server running on NginX, all of my website's log files shows me an error like this
2011/11/23 10:01:03 [error] 5320#0: *349 FastCGI sent in stderr: "PHP Warning: Unknown: Unable to allocate memory for pool. in Unknown on line 0" while reading response header from upstream
I am using APC 3.1.6 with the latest version on PHP and Nginx