__PHP_Incomplete_Class_Name wrong

Question

We\'re randomly getting some very strange error logs. They don\'t happen on every page hit, even with the same parameters/actions/etc, and they don\'t seem repeatable, each

Answer 1

Hakre's suggestion to look at session_write_close led me to what appears to be a reliable fix:

register_shutdown_function('session_write_close');

This forces the session to be written out before any memory cleanup and class unloading occurs. This is important due to a change in PHP that can result in a race condition between APC removing class references and PHP writing out the session data: http://news.php.net/php.internals/46999