Bug ID 474797: Nitrox crypto hardware may attempt soft reset while currently resetting

Last Modified: Dec 13, 2023

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

Known Affected Versions:
11.6.0, 11.6.1, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1, 12.1.2, 12.1.3,,,,,,,, 12.1.4,, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 13.1.5,, 15.1.2,, 15.1.3,, 15.1.4,, 15.1.5,, 15.1.6,, 15.1.7, 15.1.8,,, 15.1.9,

Fixed In:
16.0.0, 15.1.10, 12.1.5, 11.6.2, 11.5.7

Opened: Aug 07, 2014

Severity: 2-Critical


Nitrox crypto hardware may attempt soft reset to clear a stuck condition while already engaged in a soft reset attempt.


The initial soft reset attempt does not complete as the process is restarted by the new attempt.


Soft reset is needed to clear a stuck condition occurring in the timeframe during which another soft reset is occurring.


Correct the condition resulting in the need for the soft reset to clear the stuck condition or disable hardware-based crypto acceleration by setting db variable 'tmm.ssl.cn.shunt' to disable. To disable hardware-based crypto acceleration issue the following command: tmsh modify sys db tmm.ssl.cn.shunt value disable Note: Disabling hardware-based crypto acceleration results in all crypto actions being processed in software, which might result in higher CPU and memory usage based on traffic patterns.

Fix Information

A crypto soft reset attempt is now allowed to complete before another soft reset attempt can occur.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips