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 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.

Would it be possible to push the fix into 4.1?

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