Bug ID 610295: TMM may crash due to internal backplane inconsistency after reprovisioning

Last Modified: Mar 17, 2021

Bug Tracker

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

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 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, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 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

Fixed In:
13.0.0, 12.1.2 HF1

Opened: Aug 11, 2016
Severity: 2-Critical
Related AskF5 Article:
K32305923

Symptoms

In some scenarios on BIG-IP Virtual Edition (VE) platforms, TMM may crash due to backplane inconsistency shortly after a provisioning change.

Impact

TMM may core with panic and post the following message in /var/log/tmm log: 'Unexpected backplane address'. Traffic disrupted while tmm restarts.

Conditions

- BIG-IP VE with performance-limited license. - Additional licensing/provisioning of modules raises performance limits. New TMM processes are started. - No reboot has occurred after provisioning.

Workaround

Reboot after provisioning if new license add-on keys raises performance of the BIG-IP system.

Fix Information

TMM no longer crashes after provisioning if new license add-on keys raises performance of the BIG-IP system.

Behavior Change