Bug ID 746650: Stale packets in HSB transmit queue causes HSB DMA lockup

Last Modified: Sep 29, 2022

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 13.1.5,

Opened: Oct 11, 2018
Severity: 3-Major


A stale packet in the HSB transmit queue without the packet_ending flag set might cause HSB transmission failure and DMA lockup.


The HSB transmit failures leads to HSB DMA lockup and impacts traffic.


Conditions under which this occurs have not been reproduced.


Reboot the unit to recover from the HSB DMA lockup.

Fix Information


Behavior Change