Bug ID 676674: Two-core vCMP Guest Swap on B2100 Blades

Last Modified: May 01, 2019

Bug Tracker

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

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 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, 13.1.1.4, 13.1.1.5

Fixed In:
14.0.0

Opened: Aug 02, 2017
Severity: 2-Critical

Symptoms

Guests with 3.5GiB of memory go into swap.

Impact

Long wait times when using the GUI or CLI.

Conditions

vCMP guests with two cores on B2100 blades.

Workaround

Set provision.extramb to 100 on the vCMP host/hypervisor.

Fix Information

The system now better handles two-core vCMP guest on B2100 blades so no swapping occurs.

Behavior Change