F5 | 1077789

Bug ID 1077789: System might become unresponsive after upgrading. ... After upgrading, the system encounters numerous issues: -- Memory exhaustion (RAM plus swap) with no particular process consuming excessive memory. -- High CPU usage with most cycles going to I/O wait. -- System is unresponsive, difficult to log in, slow to accept commands. -- Provisioning is incomplete; there is a small amount of memory amount assigned to 'host' category. ... Conditions ... -- The configuration loads in the previous release, but does not load successfully on the first boot into the release you are upgrading to. -- Device is upgraded and the configuration is rolled forward. -- There may be other conditions preventing the configuration from loading successfully after an upgrade. ... Exact conditions that trigger this issue are unknown and could be varied. ... In the environment in which it occurs, a datagroup is deleted, but an iRule still references it. ... Workaround ... Reboot to an unaffected, ...