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Re: [Xen-devel] Fatal crash on xen4.2 HVM + qemu-xen dm + NFS

--On 22 January 2013 10:07:07 +0000 Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:

On Mon, 2013-01-21 at 20:37 +0000, Alex Bligh wrote:
This would also explain why Ian might not have seen it (it went in
late and without O_DIRECT we think this crash can't happen).

When I saw this sort of thing it was with PV guests and blktap. I have
never tried anything like this with an HVM guest so it's not hard to
explain why I've never seen it there ;-).

My knowledge of PV guests is about zero, but I thought they used
xen_disk.c as well. However, as you were testing pre April 2012 I
think, they wouldn't have used O_DIRECT.

Alex Bligh

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