Bug ID 583700: tmm core on out of memory

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP LTM(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, 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, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1, 12.1.2

Fixed In:
13.0.0, 12.1.3

Opened: Mar 29, 2016

Severity: 2-Critical

Related Article: K32784801

Symptoms

tmm memory increases quickly, then crashes on out-of-memory condition.

Impact

Traffic disrupted while tmm restarts.

Conditions

It is not known exactly what triggers this, but it was observed on a hardware platform processing a large number of ECDH and ECDHE ciphers.

Workaround

None known.

Fix Information

The system now cancels ongoing crypto requests when the handshake is dropped, preventing this error condition.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips