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Re: Possible bug in kernel 2.6.37

Hello Ian,
Thanks for your answer.
Let's talk about his back on xen-devel list so.
See you there :)


Le 27/01/2011 21:42, Ian Campbell a écrit :
> Hi Jean,
> Given that the 2.6.37 kernel is only in experimental I think Debian can
> only offer very limited support for it.
> I recommend you stick with your dialog with upstream, it is likely to be
> the most effective way to get to the bottom of the issue.
> Ian.
> On Wed, 2011-01-26 at 21:02 +0100, Jean Baptiste FAVRE wrote: 
> Hello,
> I'm not sure this is neither the right place, nor the right way to
> introduce my problem, but I've only small kernel knowledge. Please
> excuse me if I'm wrong.
> I'm using 2 Debian Squeeze Xen Dom0 servers. Those 2 servers provide PCI
> passthrough for a network card.
> The idea is to filter network trafic inside dedicated domU instead of
> having dom0 directly connected on the network.
> For my tests, I choose Debian Squeeze with 2.6.37 kernel from
> experimental. Here are the results:
> - Debian Squeeze 32bits + 32bits 2.6.37 kernel: incoming packets larger
> than 128 bytes are blocked "somewhere".
> - Debian Squeeze 32bits + 64bits 2.6.37 kernel: everything works fine.
> - Debian Squeeze 64bits + 64bits 2.6.37 kernel: everything works fine.
> My first thought was I discovered a bug in Xen PCI passthrough code.
> I exchange some mails on xen-devel mailing list about it, mostly with
> Konrad Rzeszutek Wilk.
> He asked me to do many tests which did not help to diagnose the problem.
> Then he suggest me to change memory allocated to domU from 256mb to 512mb.
> That solved my problem.
> Now, I don't know exactly what I shall do.
> Any help will be appreciated,
> Regards,
> Jean Baptiste Favre

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