Bug ID 723658: TMM core when processing an unexpected remote session DB response.

Last Modified: Feb 12, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP CGN(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, 12.1.3.6, 12.1.3.7, 12.1.4, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4

Opened: Jun 08, 2018
Severity: 2-Critical

Symptoms

Using CGNAT or FW-NAT on a cluster may cause a TMM core if there are intra-cluster communication issues that cause CMP state transitions. The system writes messages to /var/log/tmm* similar to the following: notice CDP: exceeded 1/2 timeout for PG 1 notice CDP: PG 1 timed out notice CDP: New pending state 0f -> 0d notice Immediately transitioning dissaggregator to state 0xd notice cmp state: 0xd notice CDP: New pending state 0d -> 0f ... notice cmp state: 0xf notice CDP: exceeded 1/2 timeout for PG 1

Impact

Traffic disrupted while tmm restarts.

Conditions

-- A LSN pool or FW-NAT source translation that has persistence enabled. -- Intra-cluster communication issues that cause CMP state transitions.

Workaround

There is no workaround at this time.

Fix Information

None

Behavior Change