Last Modified: Sep 27, 2024
Affected Product(s):
BIG-IP Install/Upgrade, TMOS
Known Affected Versions:
16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 16.1.5, 17.0.0, 17.0.0.1, 17.0.0.2, 17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4
Opened: May 24, 2024 Severity: 3-Major
From version 16.1.0 the maximum value of sys db provision.extramb is 4096 MB, reduced from 8192 MB. It will be automatically set to 4096 during the upgrade if it has a higher setting.
It is extremely rare to need values of provision.extramb above 4096 MB. No impact on upgrade if value of sys db provision.extramb is 4096 or less. After the upgrade, it is not possible to increase the value above 4096. If greater than 4096 the value will be reduced to 4096 when upgrading to version 16.1.0 or higher. This may leave device with insufficient 4KB page memory (also known as host memory) which may lead to issues due to memory pressure such as oom killer killing processes, poor scheduling of processes which may cause core dumps, and sluggish management access.
Any BIG-IP device running software version 16.1.0 or higher.
None
None
The maximum value of sys db provision.extramb was reduced from 8192 to 4096 MB from version 16.1.0