Re: [Xen-users] domU fails to boot with more than 32 vcpus on kernel 4.1+ - xen_netfront: can't alloc rx grant refs

[Tomas Mozes <hydrapolic@xxxxxxxxx>]

On Thu, Jan 21, 2016 at 11:12 AM, Ian Campbell <ian.campbell@xxxxxxxxxx> wrote:

On Thu, 2016-01-21 at 08:28 +0100, Tomas Mozes wrote:
>
>
> On Wed, Jan 20, 2016 at 4:05 PM, Ian Campbell <ian.campbell@xxxxxxxxxx>
> wrote:
> > On Wed, 2016-01-20 at 15:51 +0100, Tomas Mozes wrote:
> > Â
> > > > I think the resulting crash which you report below has also been
> > fixed in
> > > > 4.3, did you see this with Linux 4.4.0 as well as 4.1.15 (hopefully
> > not)?
> > > I saw the same crash on 4.4.0. I even tried using 4.4.0 dom0 + 4.4.0
> > domU, same issue.
> >
> > Interesting (and a shame). Please could you post the dmesg log with
> > 4.4.0
> > so I can point the appropriate folks at it.
> >
> > Actually, if you wouldn't mind reporting the bug with 4.4.0 on xen-
> > devel@
> > that would be much appreciated (and avoid me needing to play the middle
> > man!)
> >
> > Thanks,
> > Ian.
>
> Sorry for the noise, I tested 4.4.0 again and it works ok. So the problem
> is only relevant to 4.1.15.

Thanks.

> Would it be possible to push the fix into 4.1?

I've asked the devs if anyone has requested the backport yet, if not I'll
do it.

Ian.

Thank you very much Ian!

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