Bug ID 913441: Tmm cores while doing Hitless Upgrade while there are active flows

Last Modified: Sep 13, 2023

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

Known Affected Versions:
12.1.0, 12.1.1, 12.1.2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4

Fixed In:
13.1.3.5, 12.1.5.3

Opened: Jun 02, 2020

Severity: 2-Critical

Symptoms

Tmm cores.

Impact

Tmm core while doing app detection for new flows. Traffic disrupted while tmm restarts.

Conditions

Addition of new flows to existing lib while Hitless Upgrade is in progress.

Workaround

Restrict addition of new flows if a Hitless Upgrade is in progress.

Fix Information

New flows are no longer added to the classification engine to any of the library if the Hitless Upgrade process is in progress.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips