Bug ID 712266: Decompression of large buffer might fail with comp_code=11 with Nitrox 3 hardware

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.1.2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8

Fixed In:
14.1.0, 13.1.1

Opened: Mar 27, 2018

Severity: 3-Major

Symptoms

Messages like the following may show up in /var/log/ltm: -- crit tmm5[28908]: 01010025:2: Device error: n3-compress0 Zip engine ctx eviction (comp_code=11): ctx dropped. This occurs because the decompression of large compressed data failed.

Impact

Requests fail with a connection reset.

Conditions

This issue occurs when compressed data cannot be decompressed in a single request to the Nitrox 3 hardware accelerator.

Workaround

Use zlib software decompression.

Fix Information

This release fixes this decompression issue in the Nitrox 3 driver.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips