Bug ID 886273: Unanticipated restart of TMM due to heartbeat failure

Last Modified: Apr 20, 2024

Affected Product(s):
BIG-IP TMOS(all modules)

Known Affected Versions:
16.0.1.1, 16.0.1.1, 16.0.1, 16.0.1, 16.0.0, 16.0.0, 15.1.3.1, 15.1.3, 15.1.3, 15.1.2.1, 15.1.2, 15.1.2, 15.1.1, 15.1.1, 15.1.0.5, 15.1.0.4, 15.1.0.3, 15.1.0.2, 15.1.0.1, 15.1.0, 15.1.0, 15.0.1, 15.0.1, 15.0.0, 15.0.0, 14.1.4.2, 14.1.4.2, 14.1.4.1, 14.1.4.1, 14.1.4, 14.1.4, 14.1.3.1, 14.1.3, 14.1.3, 14.1.2.8, 14.1.2.7, 14.1.2.6, 14.1.2.5, 14.1.2.4, 14.1.2.3, 14.1.2.2, 14.1.2.2, 13.1.4, 13.1.3.6, 13.1.3.5, 13.1.3.5, 13.1.3.4, 13.1.3.4, 13.1.3.3, 13.1.3.3

Fixed In:
16.1.0, 16.0.1.2, 15.1.4, 14.1.4.3, 13.1.4.1

Opened: Feb 28, 2020

Severity: 3-Major

Symptoms

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/*.

Impact

Traffic disrupted while tmm restarts. For more information about this issue, see https://cdn.f5.com/product/bugtracker/ID1000973.html.

Conditions

The conditions under which this occurs are unknown.

Workaround

None known.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips