Last Modified: Jan 07, 2026
Affected Product(s):
BIG-IP LTM
Fixed In:
11.6.0, 11.5.1
Opened: Feb 24, 2014 Severity: 2-Critical
On BIG-IP and BIG-IQ platforms provisioned with SSD swap space, there is a possible race condition that can lock up some of the CPUs, causing a disruption of service from that CPU.
Swap activity can lock up the system, requiring a power cycle or AOM host reset.
This occurs only on BIG-IP 5000s, 5200v, 5050, 7000s, 7200v, 7050, 10000s, and 10200v platforms, and on VIPRION B2150 and B2250 blades.
None. However, this is a rare occurrence.
Added changes from RHEL6.4 kernel sources prevent possible lockup conditions by yielding to other tasks waiting for the swap I/O requests to complete.