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From "Andrija Panic (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-8353) Including windows guest performance improvement flags like hv_vapic and hv_spinlock in CCP
Date Tue, 04 Oct 2016 08:43:21 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-8353?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15544754#comment-15544754
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Andrija Panic commented on CLOUDSTACK-8353:
-------------------------------------------

We would like to solve this internally. What I see as source of documentation is folowing:
https://bugzilla.redhat.com/show_bug.cgi?id=990824 and similary https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1308341.

Any opinions if we should add the needed flag to all OS types during or only for "Windows
7, Windows 2008 R2, and Windows PV" OS types ?
We are going to folow up with our internal investgation, but any opinion is appreciated.

> Including windows guest performance improvement flags like hv_vapic and hv_spinlock in
CCP
> ------------------------------------------------------------------------------------------
>
>                 Key: CLOUDSTACK-8353
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-8353
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: KVM
>    Affects Versions: 4.5.0
>            Reporter: Bharat Kumar
>            Assignee: Bharat Kumar
>
> There is a bug in KVM that causes a BSOD for Windows 2008 R2 and 7 or earlier. fix was
added in libvirt 1.1.1 The fix requires enabling the "hv_relaxed" option for the affected
VMs. 



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