zend_mm_heap corrupted (1 reply)

HI,

I have an error message that I have spent a lot of hours trying to correct. The error message below keeps popping up every now and again in my apache error log.

[Wed Aug 31 10:44:40.814663 2016] [mpm_winnt:notice] [pid 10412:tid 152] AH00354: Child: Starting 64 worker threads.
zend_mm_heap corrupted

It is less frequent than in the beginning but it still happening.
I have searched the web before coming here and all the things that I could change in the php.ini and apache config. I have tried.

Any clues?