Bug 770122 - Remove max_cstate=1 from the oVirt Node kernel command line default options
Summary: Remove max_cstate=1 from the oVirt Node kernel command line default options
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: oVirt
Classification: Retired
Component: ovirt-node
Version: unspecified
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: ---
: ---
Assignee: Mike Burns
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 770123 770153
TreeView+ depends on / blocked
 
Reported: 2011-12-23 13:19 UTC by Perry Myers
Modified: 2016-04-26 21:20 UTC (History)
6 users (show)

Fixed In Version: 2.2.1
Doc Type: Bug Fix
Doc Text:
Clone Of:
: 770123 (view as bug list)
Environment:
Last Closed: 2012-01-18 16:11:36 UTC
oVirt Team: ---
Embargoed:

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Description Perry Myers 2011-12-23 13:19:06 UTC 
Description of problem:
max_cstate=1 was added to kernel defaults for oVirt Node due to a large portion of hardware having issues w/ time sync in kvm.

As long as hardware has a stable/constant tsc, it should be safe to remove this restriction.  People with older hardware can always manually add it back in.
Comment 1 Mike Burns 2012-01-03 13:43:03 UTC 
http://gerrit.ovirt.org/860
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