Bug ID 421117: Using SAML can lead to a TMM panic on 2000/4000

Last Modified: Nov 22, 2021

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:
11.3.0, 11.4.0

Fixed In:
11.5.0, 11.4.1, 11.4.0 HF3, 11.3.0 HF6

Opened: May 14, 2013

Severity: 2-Critical

Related Article: K14925


If SAML is configured on a BIG-IP 2000/4000, it can lead to a TMM panic.


TMM panics and restarts. The system logs the panic in the tmm log files and posts the message to the console.


SAML SP configured on the BIG-IP system with signature verification enabled.


To work around this issue, disable hardware acceleration with the following commands: echo "device exclude 07:00.0;device exclude 08:00.0" >> /config/tmm_init.tcl bigstart restart tmm

Fix Information

Handling SSL traffic with a SAML Access profile on a BIG-IP 2000-series or 4000-series platform no longer causes TMM to core.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips