Bug ID 510393: TMM may occasionally restart with a core file when deployed VCMP guests are stopped

Last Modified: Nov 07, 2022

Affected Product(s):
BIG-IP vCMP(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, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4

Fixed In:
12.0.0, 11.6.0 HF5, 11.5.4

Opened: Mar 03, 2015

Severity: 1-Blocking


VCMP guest shutdown can interfere with execution of the VCMP hypervisor TMM, causing 'Clock advanced' messages and TMM restarts wit corresponding core files.


Traffic disrupted while tmm restarts.


vCMP guests in state 'deployed' are modified to state 'provisioned' or 'configured', or are deleted entirely. The likelihood of a TMM restart increases with the number of guests that are stopping at the same time.


Shut down vCMP guests one at a time to reduce the likelihood of encountering this issue.

Fix Information

Resolved occasional TMM restarts when stopping vCMP guests on 12050 and 10350N appliances

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips