The CPM might slowly run out of memory during operation of the X-Series platform.
The ps or top commands reveal that most of the total memory is occupied by the snmpd or cbsstatsmond daemons. For example:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3910 root 15 0 5693m 5.7g 8088 S 0.0 36.4 16:06.74 snmpd
The snmpd and cbsstatsmond daemons can allocate significant amounts of memory when communicating with other modules (APMs, NPMs) within the chassis.
The problem was fixed in the following XOS versions:
Blue Coat recommends upgrading to one of the XOS versions above (or a later version) in order to resolve the issue.