Bug ID 520105: Possible segfault during hardware accelerated compression.

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0

Fixed In:

Opened: Apr 27, 2015

Severity: 2-Critical


Segfault and core-dump of tmm when using gzip, deflate, or zlib hardware accelerated compression compress or decompress operations.


Tmm restarts when the issue is encountered.


Requests for compression on the hardware accelerator might cause a segfault.


Disable hardware accelerated compression.

Fix Information

Cancelled flow contexts involving a compression context no longer segfault when the in-flight operation completes.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips