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

To: Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Subject: Re: [Xen-devel] xen trouble while guest excute float app
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Mon, 6 Sep 2010 13:47:48 +0300
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, ywzheng <ywzheng@xxxxxxxxxxxxxxxx>
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On Mon, Sep 06, 2010 at 11:32:54AM +0100, Tim Deegan 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.

Ok, so it's fixed in here: http://xenbits.xen.org/xen-4.0-testing.hg

"5 days ago:    x86 intel: Disable XSAVE support."

-- Pasi

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