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Re: [Xen-devel] xen trouble while guest excute float app

To: Tim Deegan <Tim.Deegan@xxxxxxxxxx>, ywzheng <ywzheng@xxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] xen trouble while guest excute float app
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Mon, 6 Sep 2010 04:54:52 -0700
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
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On 06/09/2010 03:32, "Tim Deegan" <Tim.Deegan@xxxxxxxxxx> wrote:

> At 02:51 +0100 on 06 Sep (1283741502), ywzheng wrote:
>> When I use ?xm migrate ?live win1 hosta?, (hosta is the same computer),
>> sometime print f = -1.#IND0, sometime goto BUG(). Why()?
>> Then I use xen-4.0.1-rc6, the same thing happen. Is this a BUG of xen?
> Yes, this bug was introduced by Intel's patches to support XSAVE, which
> broke save/restore.  Unfortunately it was only fixed very recently so
> it's not fixed in 4.0.1; you'll need the very latest 4.0-testing Xen.

Or you can just add no-xsave to the Xen command line.

> Cheers,
> Tim.
>> My CPU is Intel Xeon L5408.When I use other CPU, for example Xeon L5420,I
>> rarely meet the problem.
>> 2010-09-06
>> ________________________________
>> ywzheng

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