Bug ID 1020789: An i11800 cannot deploy a four core vCMP guest if the remaining cores are in use

Last Modified: Nov 26, 2021

Bug Tracker

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

Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1, 16.0.1.2, 16.1.0, 16.1.1, 16.1.2

Opened: May 24, 2021
Severity: 3-Major

Symptoms

When trying to deploy a four or more core guest on an i11800 vCMP host where all of the other cores are in use, the following error message may be seen: err mcpd[<pid>]: 0107131f:3: Could not allocate vCMP guest (<guest_name>) because fragmented resources -------------------------------------------------- one more similar issue has raised for 8 guests allocation failure When trying to deploy a eight core guest on an i11800 vCMP host where four 2 cores are in use, the following error message may be seen: 0107131f:3: Could not allocate vCMP guest (guest-8cores-A) because fragmented resources

Impact

All of the available cores cannot be used.

Conditions

VCMP provisioned on an i11800 and 28 cores are in use. Attempts to deploy a four core guest will fail -------------------------------------------------- VCMP provisioned on an i11800 and 8 cores are in use. Attempts to deploy a eight core guest will fail Because interfaces are not continues

Workaround

It is possible you may be able to work around this by deploying the largest guests first, then any remaining 2 core guests. There is currently no other fix.

Fix Information

None

Behavior Change