Bug ID 2044381: Gtmd SIGSEGV core due to monitor status change

Last Modified: Sep 02, 2025

Affected Product(s):
BIG-IP DNS, GTM, Link Controller, LTM(all modules)

Known Affected Versions:
16.1.4.1, 16.1.4.2, 16.1.4.3, 16.1.5, 16.1.5.1, 16.1.5.2, 16.1.6

Opened: Aug 26, 2025

Severity: 2-Critical

Symptoms

Gtm cored

Impact

GSLB traffic disrupted while gtmd restarts.

Conditions

-- Three GTMs in a sync group -- A GTM pool has a monitor with "require 1 from 2 probes" configured -- Resources are marked down due to iQuery traffic disruption between two of the GTMs, then come back up

Workaround

None

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips