Bug ID 434313: DoSL7D reaching 100% CPU

Last Modified: Jul 12, 2023

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

Known Affected Versions:
11.3.0, 11.4.0, 11.4.1

Fixed In:
11.5.0, 11.4.1 HF2, 11.4.0 HF6, 11.3.0 HF9

Opened: Oct 17, 2013

Severity: 2-Critical

Related Article: K54448640


DoSL7D is reaching 100% CPU.


Impact on the system resources.


This scenario may happen when there is a TMM crash, which causes both AVRD and DoSL7d to restart, and the shared memory to reset.


This issue has no workaround at this time.

Fix Information

We fixed a rare case when after a TMM core dump, Application DoS got stuck in a loop, consuming 100% of the CPU.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips