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

[Sander Eikelenboom <linux@eikelenboom.it>]

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@suse.com/T/#t
> 
> ~Andrew

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

--
Sander