Bug ID 472202: Potential false positive report of DMA RX lockup failure

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
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, 11.5.10, 11.5.2

Fixed In:
11.6.0, 11.5.3, 11.5.2 HF1

Opened: Jul 17, 2014
Severity: 2-Critical
Related Article:
K16529

Symptoms

Due to mixed traffic in the same ring, heartbeat message might not be received in time and therefore system report DMA RX lockup after a period of time.

Impact

TMM restart and report HSB DMA RX lockup

Conditions

Mixed traffic stressing into DMA ring 0 and have impacts to heartbeat healthy messages.

Workaround

None.

Fix Information

The false positive report of RX HSB DMA lockup had been eliminated as long as the ring is moving.

Behavior Change