Bug ID 667028: DNS Express does not run on i11000 platforms with htsplit disabled.

Last Modified: Sep 13, 2023

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

Known Affected Versions:
13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:
13.1.0, 12.1.3

Opened: May 29, 2017

Severity: 2-Critical

Symptoms

tmm processes enter a restart loop when trying to run DNS Express (DNSX) on i11000 platforms with htsplit disabled.

Impact

tmm processes enter a restart loop. In this condition, DNSX does not run, though other DNS functions are unaffected.

Conditions

-- i11000 platform. -- htsplit disabled (sys db scheduler.splitplanes.ltm set to false). -- Trying to run DNSX.

Workaround

Enable htsplit using the following command: modify sys db scheduler.splitplanes.ltm value true

Fix Information

tmm no longer cores under these conditions. However, you cannot use DNSX with htsplit disabled; htsplit must be enabled. Note: DNSX works as expected with htsplit enabled, both before and after the fix.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips