Bug ID 1291149: Cores with fail over and message routing

Last Modified: Mar 30, 2024

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

Known Affected Versions:
14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,,,, 14.1.5,,,,,, 15.0.0, 15.0.1,,,,, 15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 15.1.4,, 15.1.5,, 15.1.6,, 15.1.7, 15.1.8,,, 15.1.9,, 16.0.0,, 16.0.1,,, 16.1.0, 16.1.1, 16.1.2,,, 16.1.3,,,,,, 17.0.0,,, 17.1.0,,,

Fixed In:
17.1.1, 16.1.4, 15.1.10

Opened: Apr 19, 2023

Severity: 3-Major


Seg faults for an active unit in an high availability (HA) pair when it goes to standby.


This is a memory corruption issue, the effects are unpredictable and may not become visible for some time, but in testing seg faults leading to a core were observed in the device going to standby within 10-25s of the device failing over. This happened roughly for about 50% of the time but the effect will be sensitive to memory layout and other environmental perturbations.


- Generic message routing is in use. - high availability (HA) pairs - This issue is observed when generic messages are in flight when fail over happens but there is some evidence that it can happen without fail over.



Fix Information

The MR message store iteration is fixed, no corruption or cores observed.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips