My site's server logs show a repeating memory limit error:
[17-Jan-2013 17:26:01 UTC] PHP Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 523800 bytes) in /path/to/my/system/expressionengine/libraries/Template.php on line 894
As you can see, the server's memory limit is already set to 128 MB, so whatever template is causing this appears to be massive. Trouble is, I can't locate the problem template. Every page on my site is running well below 128 MB. Also, I haven't seen this PHP error anywhere on the front-end during development, and I assume it would appear if I tried to load the problem template.
Has anyone had this issue before? Is there a quirk or bug I'm not aware of that I should look for?
Line 894 in this file is:
$this->process_tags(); // Run the class/method handler