linux-kernel - Re: [PATCH 0/5 V5] Avoid soft lockup message when KVM is stopped by host

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Message-ID: <4EF2F5FB.1030200@redhat.com>
Date:	Thu, 22 Dec 2011 11:18:51 +0200
From:	Dor Laor <dlaor@...hat.com>
To:	Amit Shah <amit.shah@...hat.com>
CC:	Avi Kivity <avi@...hat.com>, Eric B Munson <emunson@...bm.net>,
	mingo@...hat.com, hpa@...or.com, arnd@...db.de,
	ryanh@...ux.vnet.ibm.com, aliguori@...ibm.com, mtosatti@...hat.com,
	jeremy.fitzhardinge@...rix.com, levinsasha928@...il.com,
	Jan Kiszka <jan.kiszka@...mens.com>, kvm@...r.kernel.org,
	linux-arch@...r.kernel.org, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/5 V5] Avoid soft lockup message when KVM is stopped
 by host

On 12/19/2011 07:59 PM, Amit Shah wrote:
> On (Mon) 19 Dec 2011 [14:59:36], Avi Kivity wrote:
>> On 12/19/2011 02:52 PM, Amit Shah wrote:
>
> (snip)
>
>>> S4 needs some treatment, though, as resume after s4 doesn't work with
>>> kvmclock enabled.  I didn't realise this series was only handling the
>>> soft lockup case.
>>>
>>
>> What's the issue there?
>
> Not sure yet; after resume, the VM freezes while bringing the 2nd vcpu
> up.  Maybe it's just sitting there spinning, maybe the delta needs
> adjusting.  Haven't poked at it yet.

Bug 694801 - Guest fail to resume from S4 if guest using kvmclock
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