Bug ID 1322937: Tmm crash in Google Cloud during a live migration: Assertion `empty xfrag' failed.

Last Modified: Jun 21, 2024

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

Known Affected Versions:,, 16.1.4,,,

Opened: Jul 20, 2023

Severity: 3-Major


When the BIG-IP is involved in a live migration on Google Cloud, it may crash. There may be a log message in /var/log/tmm similar to the following <13> Jul 19 05:45:53 bigip1 notice lib/c/xbuf.c:1431: xbuf_insert: Assertion `empty xfrag' failed.


Unexpected traffic disruption


Google Cloud VE Live migration The Virtio network driver


Disable live migration Related Bug IDs: 1319265, 1322937, 1326721

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips