Bug ID 1042913: Pkcs11d CPU utilization jumps to 100%

Last Modified: Dec 07, 2023

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

Known Affected Versions:
15.1.3,, 15.1.4,, 15.1.5,, 15.1.6, 16.1.0, 16.1.1, 16.1.2,

Fixed In:
17.0.0,,, 14.1.5

Opened: Aug 26, 2021

Severity: 3-Major


CPU utilization of pkcs11d increases to 100%.


As the pkcs11d consumes most of the CPU, other processes are starved for CPU.


This occurs when pkcs11d is disconnected from the external HSM.



Fix Information

Pkcs11d no longer consumes 100% CPU when it is disconnected from the external HSM.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips