Bug ID 749464: Race condition while BIG-IQ updates common file

Last Modified: Aug 06, 2019

Bug Tracker

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

Known Affected Versions:
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, 13.1.1, 13.1.1.1, 13.1.1.2, 13.1.1.3, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.1.0, 14.1.0.1

Fixed In:
15.0.0, 14.1.0.2, 14.0.0.5, 13.1.1.4

Opened: Nov 11, 2018
Severity: 3-Major

Symptoms

The file /var/config/rest/downloads/app_mapping.json is being used by two processes: BIG-IQ and avrd. This can cause a race-condition between the two and in some rare cases can cause avrd to crash.

Impact

avrd might read incomplete data, and can even core in some rare cases.

Conditions

BIG-IQ updating /var/config/rest/downloads/app_mapping.json while avrd is reading it.

Workaround

None.

Fix Information

This race condition no longer occurs.

Behavior Change