Bug ID 425921: Message on 4200v: Device error: (null) Allocation linked list is empty

Last Modified: Feb 13, 2019

Bug Tracker

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

Known Affected Versions:
11.2.1, 11.3.0, 11.4.0, 11.4.1

Fixed In:
11.5.0, 11.4.1 HF2, 11.4.0 HF4, 11.3.0 HF8, 11.2.1 HF10

Opened: Jul 23, 2013
Severity: 2-Critical
Related AskF5 Article:
K15108

Symptoms

When the hardware is oversubscribed for compression operations, the 4200v platform can display errors. When the error occurs, the system posts /var/log/ltm errors similar to the following: - crit tmm7[18648]: 01010025:2: Device error: (null) qa_dc_get_flat_buffer: Allocation linked list is empty - err tmm7[18648]: 01010004:3: Memory allocation failed: qa_dc_dev_init_buffer_list: Couldn't allocate memory for buffer list. - err tmm7[18648]: 01230140:3: RST sent from 10.1.13.207:41906 to 10.1.1.51:80, [0x171d345:974] {peer} Compression error (Out of memory)

Impact

When the error occurs, the system posts /var/log/ltm errors similar to the following: - crit tmm7[18648]: 01010025:2: Device error: (null) qa_dc_get_flat_buffer: Allocation linked list is empty - err tmm7[18648]: 01010004:3: Memory allocation failed: qa_dc_dev_init_buffer_list: Couldn't allocate memory for buffer list. - err tmm7[18648]: 01230140:3: RST sent from 10.1.13.207:41906 to 10.1.1.51:80, [0x171d345:974] {peer} Compression error (Out of memory)

Conditions

This occurs with compression on the 4200v.

Workaround

None.

Fix Information

Compression on the 4200v platforms now behave properly in these cases.

Behavior Change