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

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

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.


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