From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Subject: Re: Fatal crash on xen4.2 HVM + qemu-xen dm + NFS
Date: Wed, 16 Jan 2013 19:00:08 +0000
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To: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, Xen Devel <xen-devel@lists.xen.org>, Jan Beulich <JBeulich@suse.com>, Alex Bligh <alex@alex.org.uk>, Ian Campbell <Ian.Campbell@citrix.com>
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On Wed, 16 Jan 2013, Stefano Stabellini wrote:
> On Wed, 16 Jan 2013, Alex Bligh wrote:
> > Stefano,
> > 
> > --On 16 January 2013 17:39:59 +0000 Stefano Stabellini 
> > <stefano.stabellini@eu.citrix.com> wrote:
> > 
> > > Let me elaborate on this: the guest is a PV on HVM guest, so at the very
> > > least the bootloader is going to use the emulated IDE interface to grab
> > > Xen and the kernel.
> > > After that the kernel should use the PV disk interface straight away (I
> > > actually downloaded the image and tried it myself: it is using the PV
> > > disk interface indeed).
> > 
> > Indeed. Thanks for taking the time to download the image and try it.
> > Did you see the bug? (using the snapshot and the backing file)
> 
> I don't, but I don't have NFS setup at the moment :)
> 

BTW what version of NFS are you using?
Do you have a chance to try NFSv4? According to the original thread, it
doesn't have that problem.