Bug#592187: [stable] Bug#576838: virtio network crashes again
On Thu, 2010-08-26 at 09:32 +0200, Lukas Kolbe wrote:
Hi,
> > > I was finally able to identify the patch series that introduced the fix
> > > (they were introduced to -stable in 2.6.33.2):
> > >
> > > cb63112 net: add __must_check to sk_add_backlog
> > > a12a9a2 net: backlog functions rename
> > > 51c5db4 x25: use limited socket backlog
> > > c531ab2 tipc: use limited socket backlog
> > > 37d60aa sctp: use limited socket backlog
> > > 9b3d968 llc: use limited socket backlog
> > > 230401e udp: use limited socket backlog
> > > 20a92ec tcp: use limited socket backlog
> > > ab9dd05 net: add limit for socket backlog
> > >
> > > After applying these to 2.6.32.17, I wasn't able to trigger the failure
> > > anymore.
> >
> > What "failure"?
> >
> > > 230401e didn't apply cleanly with git cherry-pick on top of 2.6.32.17,
> > > so there might be some additional work needed.
> > >
> > > @Greg: would it be possible to have these fixes in the next 2.6.32? See
> > > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=592187#69 for details:
> > > they fix a guest network crash during heavy nfs-io using virtio.
> >
> > These are a lot of patches, looking like they are adding a new feature.
> > I would need to get the ack of the network maintainer before I can add
> > them.
> >
> > David?
>
> I don't mean to nag (hm well, maybe I do) and I know you were busy
> preparing the guard-page fixes, but what's the status of this? In the
> meantime, we triggered this bug also on barebone hardware using nfs over
> tcp with default [rw]sizes of about 1MiB. On the real hardware, the
> kernel oopsed, not only the network stack ...
>
> With these patches applied, everything works smoothly. I'd really love
> to see a stable 2.6.32 ...
Is there anything I can do to help reaching a decision with this issue?
Regards,
Lukas
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