Description:
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Hi,

I upgraded to PHP 4.4.6 and APC 3.0.13 at the same time. Every day at some point, it starts having a problem and the load on that machine skyrockets.

It does not happen with the opcode cache in Zend Platform for PHP 4.4.6, nor with APC 3.0.12p2.

Also, in the error log I see a lot of things like this (not sure if it is related):

 [apc-warning] GC cache entry 'path_to_file.php' (dev=64768 ino=0) was on gc-list for 4590172 seconds

The servers with 3.0.12p2 have a steady load average below 2.5 while the 3.0.13 ones are erratic, act like the behaving ones until about 8am, then spike to the 30s are stay there, sometimes dropping down (though I suspect the load balancer is removing them for periods of time). 

At any rate, the issue is with APC 3.0.13 once under moderate load on a PHP4 application.