Re: [Xen-devel] Hypervisor error messages after xl block-detach with linux 3.18-rc5

[Juergen Gross <jgross@xxxxxxxx>]

On 11/24/2014 11:02 AM, Ian Campbell wrote:
> On Mon, 2014-11-24 at 10:55 +0100, Juergen Gross wrote:
> > On 11/21/2014 02:57 PM, Konrad Rzeszutek Wilk wrote:
> > > On Fri, Nov 21, 2014 at 09:42:11AM +0100, Juergen Gross wrote:
> > > > Hi,
> > > >
> > > > while testing my "linear p2m list" patches I saw the following
> > > > problem (even without my patches in place):
> > > >
> > > > In dom0 running linux 3.18-rc5 on top of Xen 4.4.1 I modified the
> > > > disk image of a guest by attaching it to dom0:
> > > >
> > > > xl block-attach 0 file:/var/lib/libvirt/images/opensuse13-1/xvda,xvda,w
> > > > mount /dev/xvda2 /mnt
> > > > ...
> > > > umount /mnt
> > > > xl block-detach 0 xvda
> > Did some more testing:
> > - Seems to occur only when attaching a block device to dom0
> That means a qdisk backed situation then, I think.
>
> Is your qemu up to date?
>
> http://xenbits.xen.org/gitweb/?p=qemu-upstream-unstable.git;a=commit;h=abbbc2f09a53f8f9ee565356ab11a78af006e45e
>  resulted in slightly different messages, but could be related?
Newest qemu and xen-unstable together with my dom0 kernel patch made
all issues go away at a first glance.


Juergen


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