linux-kernel - Re: [kvm-devel] Guest kernel hangs in smp kvm for older kernels prior to tsc sync cleanup

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Message-ID: <20071219150938.GA15267@elte.hu>
Date:	Wed, 19 Dec 2007 16:09:38 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Avi Kivity <avi@...ranet.com>
Cc:	kvm-devel <kvm-devel@...ts.sourceforge.net>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [kvm-devel] Guest kernel hangs in smp kvm for older kernels
	prior to tsc sync cleanup


try this test perhaps in an SMP guest:

 http://people.redhat.com/mingo/time-warp-test/time-warp-test.c

you can ignore TSC warps - but no GTOD or CLOCK warps should occur.

	Ingo
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