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Re: [Xen-users] Xen bridging issue

On Mon, Sep 14, 2015 at 09:51:30AM +0100, Wei Liu wrote:

> > Or perhaps should I open an bug report at debian for this?
> Yes, I think it should be reported to Debian. I'm not very familiar with
> Debian's kernel backporting policy.  Maybe Ian (CC) can give you better
> suggestions.
> FWIW the bug fixes have been merged to Linus' mainline.
> Commit id 
> 4c82ac3c37363e8c4ded6a5fe1ec5fa756b34df3
> 32a844056fd43dda647e1c3c6b9983bdfa04d17d

These don't fix the bug that I fixed in xen-netfront.c.  Specifically,
in talk_to_netback() num_queues needs to be updated after return
from xennet_create_queues(), because the latter might create fewer
queues than requested:

    +   num_queues = info->netdev->real_num_tx_queues;

A related question was whether further improvements are needed to
make it more likely that xennet_create_queues() does not (in typical
use) create fewer queues than requested.  This might mean making
more "grant refs" available to the front end.


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