Bug ID 1099685: Prevent crash due to lack of queue buffers

Last Modified: Jan 20, 2023

Bug Tracker

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

Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 14.1.4.5, 14.1.4.6, 14.1.5, 14.1.5.1, 14.1.5.2, 14.1.5.3

Opened: Apr 15, 2022
Severity: 3-Major

Symptoms

TMM fails to start up due to lack of buffers to allocate to receive (RX) queues

Impact

TMM fails to start up and gets stuck in a restart loop

Conditions

-- Using Xnet and DPDK drivers -- The product sum of (# of TMMs) * (# of interfaces) * (RX queue size) exceeds 65535. Ex: 16 TMMs * 2 interfaces * queue size of 2048 = 65536 8 TMMs * 4 interfaces * queue size of 2048 = 65536 8 TMMs * 2 interfaces * queue size of 4096 = 65536

Workaround

Decrease one of the following so the product sum goes below 65535 - # of TMMs - # of interfaces - RX queue size

Fix Information

None

Behavior Change