Last Modified: Apr 10, 2019
Affected Product:
See more info
BIG-IP AFM
Known Affected Versions:
11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5
Fixed In:
12.0.0, 11.6.0 HF6, 11.5.3 HF2
Opened: Mar 29, 2015
Severity: 3-Major
When first using a new feature (fpm, firewall) under memory fragmentation conditions, if the feature uses an ehash table, TMM may crash.
Traffic disrupted while tmm restarts.
Severe memory fragmentation, where contiguous allocations are not satisfied, combined with initial use of a new feature.
Utilize all features shortly after TMM comes up, so all initial allocations are performed.
Certain allocations are no longer delayed. Delayed allocations which fail retry with smaller sizes, possibly reducing performance.