Bug ID 506304: UDP connections may stall if initialization fails

Last Modified: Feb 13, 2019

Bug Tracker

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

Known Affected Versions:
10.2.4, 11.0.0, 11.1.0, 11.2.0, 11.2.1, 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, 11.6.0, 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

Opened: Feb 12, 2015
Severity: 2-Critical
Related AskF5 Article:
K16612

Symptoms

UDP connections that never expire. tmm logs containing 'hud queue full' errors.

Impact

Stalled connections. Increased memory usage.

Conditions

UDP connections fail to initialize if the tmm's hud message queue is full. If these connections are flagged to not expire then they will linger forever.

Workaround

None

Fix Information

UDP connections no longer stall if initialization fails.

Behavior Change