Bug ID 619398: TMM out of memory causes core in DNS cache

Last Modified: May 29, 2024

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

Known Affected Versions:
11.5.1 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, 11.5.3 HF1, 11.5.3 HF2, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 11.2.1, 11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 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, 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

Fixed In:
13.0.0, 12.1.2 HF1, 11.6.1 HF2, 11.5.7

Opened: Sep 28, 2016

Severity: 3-Major

Symptoms

The TMM crashes and service is lost until it restarts. You may see several "aggressive mode sweeper" messages in /var/log/ltm prior to the crash.

Impact

Traffic disrupted while tmm restarts.

Conditions

This can occur when the TMM memory is exhausted.

Workaround

Provision sufficient memory for the TMM or reduce load.

Fix Information

The fix was to properly handle the failure allocating memory.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips