Re: 3.12-rc7 regression - network panic from ipv6

From: Meelis Roos
Date: Tue Oct 29 2013 - 17:38:36 EST


> > Some bad news - in a system where 3.12-rc6 and earlier worked fine,
> > 3.12-rc7 panics or hangs repeatedly with network traffic (torrent being
> > good test). First there is BUG from ipv6 code, followed by panic.
>
> Could you do a bisect on this? There seems to be one commit for this
> particular function _decode_session6:
>
> commit bafd4bd4dcfa13145db7f951251eef3e10f8c278
> Author: Steffen Klassert <steffen.klassert@xxxxxxxxxxx>
> Date: Mon Sep 9 10:38:38 2013 +0200
>
> xfrm: Decode sessions with output interface.
>
> The output interface matching does not work on forward
> policy lookups, the output interface of the flowi is
> always 0. Fix this by setting the output interface when
> we decode the session.
>
> Maybe try to just revert this change locally and try again?

Yes, just reverting this patch on top of rc7 gets rid of the problem for
me.

--
Meelis Roos (mroos@xxxxxxxx)
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