I have been seeing periodic high load on a cPanel server for a little while now. In looking through the error logs of the server I see frequently:
[2012-05-23 06:14:04 -0700] info [cpanellogd] Unable to load summary files: /var/cpanel/bandwidth/solp.hour, /var/cpanel/bandwidth/solp.5min
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
This server is running on:
CentOS 5.8
WHM 11.32.2 (build 25)
[2012-05-23 06:14:04 -0700] info [cpanellogd] Unable to load summary files: /var/cpanel/bandwidth/solp.hour, /var/cpanel/bandwidth/solp.5min
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
zend_mm_heap corrupted
This server is running on:
CentOS 5.8
WHM 11.32.2 (build 25)