Bug ID 477769: TMM crash (panic) in AFM pktclass code (Assertion 'classifier ref non-zero' failed.) when virtual server has SPDY or HTTP Prefetching enabled along with AFM Rules.

Last Modified: Nov 07, 2022

Affected Product(s):
BIG-IP AFM(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, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3

Fixed In:
12.0.0, 11.6.1, 11.6.0 HF4, 11.5.1 HF5

Opened: Sep 03, 2014

Severity: 2-Critical


TMM will crash (panic) in AFM pktclass code with following signature: Assertion 'classifier ref non-zero' failed.


Traffic disrupted while tmm restarts.


For this to happen, following conditions must be met: - AFM is enabled. - Virtual Server has AFM Rules (policy). - Either SPDY profile OR HTTP prefetching enabled. - Then the AFM Rule (policy) on this Virtual Server is modified.



Fix Information

TMM crash (panic) is fixed now and TMM no longer panics in scenarios with SPDY or HTTP Prefetching enabled.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips