Bug ID 671326: DNS Cache debug logging might cause tmm to crash.

Last Modified: Sep 13, 2023

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

Known Affected Versions:
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, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1, 12.1.2, 12.1.3, 12.1.3.1, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:
13.1.0, 12.1.3.2, 11.6.3.3

Opened: Jun 27, 2017

Severity: 3-Major

Related Article: K81052338

Symptoms

DNS Cache debug logging might cause tmm to crash.

Impact

tmm crashes and restarts. Traffic disrupted while tmm restarts.

Conditions

This occurs when the following conditions are met: -- The dnscacheresolver.loglevel debug value is set to 1 - 5. -- tmm.verbose is enabled.

Workaround

Do not enable the DNS Cache debug log when tmm.verbose is enabled.

Fix Information

DNS Cache debug logging no longer causes tmm to crash.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips