We are investigating reports regarding high swap usage after updating to 5.8.5. The behavior is that server information will show memory is over threshold. The PBX may become unresponsive, forcing a reboot. The behavior reportedly returns after a short period of one to two weeks. This is more likely to affect prior-generation appliances (65, 305, 355).
If you are experiencing any similar issues after updating to 5.8.5, please contact Technical Support. A temporary fix is available which does not require a restart of the PBX. Keep in the mind that this fix provides temporary help and will prevent the need for a system reboot. The fix, however, must be run at regular intervals - determined by the load on your system - to stabilize the load and prevent a system reboot. It is not a one-time fix to the problem. The fix also will drop calls so it must be run at a time when the PBX is idle.
For those who are affected, we sincerely apologize for the inconvenience. Engineering is working on a quick resolution.