Bug#1026035: xen netback broken with 5.10.0-20-amd64 in s-p-u

[Salvatore Bonaccorso <carnil@debian.org>]

Source: linux
Source-Version: 5.10.158-2

Hi Adi,

On Tue, Dec 13, 2022 at 03:40:04PM +0100, Adi Kriegisch wrote:
> Source: linux
> Version: 5.10.158-1
> 
> Dear maintainers,
> 
> we just upgraded our xen test cluster's kernel to the latest kernel from
> s-p-u and noticed that network communication is broken. We do have a
> 'classic' setup with bridges in dom0. After upgrading dom0's kernel, no
> communication is possible for the domU.
> 
> We can see packets arrive at the domU and packets leave the domU; but they
> never arrive at the virtual interface in dom0 (rx counter stays at 0 and error
> counters stay at 0 too).
> 
> When migrating the domU back to the other server which has not been
> upgraded, the machine is reachable again.
> 
> If there is anything we can do to help fixing that issue, we'll gladly do
> that!
> 
> Thank you very much!

This is adressed with a subsequent upload which should hit the archive
soon and hopefully in time for the point release (I did miss to close
this bug with the upload, doing so manually to have proper version
tracking).

Regards,
Salvatore