Operational Defect Database
BugZero found this defect 1166 days ago.
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F5 | 1000973
Unanticipated restart of TMM due to heartbeat failure
Last update date:
5/17/2024
Affected products:
BIG-IP
BIG-IP TMOS
BIG-IP vCMP
Affected releases:
16.0.1.1
16.0.1
16.0.0
15.1.3.1
15.1.3
15.1.2.1
15.1.2
15.1.1
15.1.0.5
15.1.0.4
15.1.0.3
15.1.0.2
Fixed releases:
16.1.0
16.0.1.2
15.1.4
14.1.4.3
13.1.4.1
Description:
A tmm thread might stall while yielding the CPU, and trigger a failsafe restart of the tmm process. ... A core file might be generated without any message logged in /var/log/*. ... Conditions ... This occurs when data in kernel hrtimer module is corrupted by a kernel bug, so a tmm thread may fail to wake at the appropriate time after having entered a planned short sleep. ... The precise details in this particular case are not knowable. ... Workaround ... Very rarely, this might take a long time, in which case there is no mitigation except to wait for the operation to complete. ... Alternatively, the unit might remain offline, in which rebooting the system is the better option. ... Fix Information ... Fixed kernel issue that led to an unanticipated restart of tmm due to heartbeat failure. ... Behavior Change
