Bug ID 422087: Low memory condition caused by Ram Cache may result in TMM core

Last Modified: Apr 10, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 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, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5

Fixed In:
12.0.0, 11.6.0 HF6, 11.5.3 HF2, 11.4.1 HF6, 11.3.0 HF9

Opened: May 29, 2013
Severity: 3-Major
Related AskF5 Article:
K16326

Symptoms

As a result of this issue, you may encounter the following symptoms: - The TMM process crashes with a SIGABRT - The BIG-IP system fails over to the peer system in a high-availability configuration. - The BIG-IP system generates a TMM core file in the /var/core directory.

Impact

Traffic disrupted while tmm restarts.

Conditions

- Associating a Web Acceleration profile with a virtual server - TMM has become deficient in memory.

Workaround

There is no workaround for this issue.

Fix Information

Tmm no longer crashes in certain low memory conditions with Ram Cache enabled.

Behavior Change