Re: Xen + linux 6.1.0-rc8, network to guest VM not working after commit ad7f402ae4f466647c3a669b8a6f3e5d4271c84a fixing XSA-423

[Sander Eikelenboom]

On 08/12/2022 00:00, Andrew Cooper wrote:
> On 07/12/2022 21:42, Sander Eikelenboom wrote:
> > Hi Ross / Juergen,
> >
> > I just updated my linux kernel to the latest of Linus his tree which
> > included commit ad7f402ae4f466647c3a669b8a6f3e5d4271c84a fixing XSA-423.
> >
> > Unfortunately when using this kernel I can't SSH anymore into the Xen
> > guest I start, but I don't see any apparent failures either.
> > A straight revert of the commit
> > ad7f402ae4f466647c3a669b8a6f3e5d4271c84a makes networking function
> > normally again.
> >
> > I have added some of the logging below, perhaps it at gives some idea
> > off the state around the Xen network front and backend.
> >
> > Any ideas or a test patch that I could run to shed some more light on
> > what is going on ?
>
> XSA-423 was buggy.  Fix and discussion at:
>
> https://lore.kernel.org/xen-devel/681773dd-6264-63ac-a3b5-a9182b9e0cc1@xxxxxxxx/T/#t
>
> ~Andrew

Thanks for the pointer Andrew, that fix works for me as well!
What a difference a few characters can make :)

--
Sander