Re: [Xen-devel] Bug in Linux dom0 netback?

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 5/2/08 09:52, "Joakim Dahlstedt" <jda@xxxxxxx> wrote:

> In Xen 3.1 the code in net_rx_action looked like this:
> if (npo.mcl_prod &&
>    !xen_feature(XENFEAT_auto_translated_physmap))
> 
> It seems like someone wanted to avoid the check in the if-statement and
> turned it into a BUG_ON statement inside the if instead - but forgot to
> invert the condition.
> 
> Can anyone confirm?

Yes, that's a bug. It would only trigger with old domUs which have a
netfront driver that does not have the new 'copying receiver' support. It
was introduced by c/s 393 a couple of weeks ago.

Thanks for tracking it down!

 -- Keir



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