Bug ID 424657: TMM restarts due to a deduplication out-of-order prune assertion failure

Last Modified: Sep 13, 2023

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

Known Affected Versions:
10.0.0, 10.0.1, 10.1.0, 10.2.0, 10.2.1, 10.2.2, 10.2.3, 10.2.4, 11.0.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.5.1 HF1, 11.6.1 HF1, 11.5.1 HF2, 11.6.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.1 HF10, 11.5.1 HF11, 11.5.2 HF1, 11.6.2 HF1, 11.5.3 HF1, 11.5.3 HF2, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 11.1.0, 11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3

Fixed In:
11.4.1 HF4

Opened: Jul 05, 2013

Severity: 3-Major

Symptoms

When a TMM process restarts and deduplication is enabled, an out-of-order prune assertion failure might cause the TMM to restart again.

Impact

The assertion failure causes the TMM process to restart a second time, terminating active flows.

Conditions

Deduplication is enabled and a sufficient number of hits are generated to cause the deduplication cache to be pruned. TMM restarts while prune messages are pending.

Workaround

None

Fix Information

The assertion no longer fails as stale prune messages are now ignored.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips