Bug ID 703914: TMM SIGSEGV crash in poolmbr_conn_dec.

Last Modified: Oct 01, 2018

Bug Tracker

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

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5

Fixed In:
14.0.0, 13.1.0.6, 12.1.3.6

Opened: Jan 26, 2018
Severity: 2-Critical

Symptoms

TMM cores in poolmbr_conn_dec function.

Impact

TMM core, traffic interruption, possible failover.

Conditions

A connection limit is reached on a VS having an iRule using LB::reselect and a pool using request queueing.

Workaround

Do not use LB::reselect, disable request queueing on a pool associated with the VS.

Fix Information

TMM correctly handles LB:reselect on virtual servers with pools using request queueing.

Behavior Change