linux-kernel - Re: [PATCH 0/4] Avoid soft lockup message when KVM is stopped by host

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Message-ID: <20110921174624.GB21677@amt.cnet>
Date:	Wed, 21 Sep 2011 14:46:24 -0300
From:	Marcelo Tosatti <mtosatti@...hat.com>
To:	Dave Hansen <haveblue@...ibm.com>
Cc:	Eric B Munson <emunson@...bm.net>,
	Anthony Liguori <anthony@...emonkey.ws>, avi@...hat.com,
	tglx@...utronix.de, mingo@...hat.com, hpa@...or.com, arnd@...db.de,
	riel@...hat.com, kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arch@...r.kernel.org, kvm-ppc@...r.kernel.org,
	aliguori@...ibm.com, raharper@...ibm.com, kvm-ia64@...r.kernel.org,
	Glauber Costa <glommer@...il.com>, mjwolf@...ibm.com
Subject: Re: [PATCH 0/4] Avoid soft lockup message when KVM is stopped by host

On Wed, Sep 21, 2011 at 07:11:08AM -0700, Dave Hansen wrote:
> On Tue, 2011-09-20 at 16:55 -0300, Marcelo Tosatti wrote:
> > > and the wall clock stays behind my host wall clock by the amount of
> > > time it took to resume.
> > 
> > This is expected, similar to savevm/loadvm. 
> 
> That seems like pretty undesirable behavior to me.  It's too bad that it
> does that with savevm/loadvm, but is it really behavior that we want to
> spread?

Not really. savevm/loadvm has more widespread use, so a solution could
apply equally to both cases.

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