* Jesse Gross (je...@nicira.com) wrote: > On Mon, Sep 3, 2012 at 6:00 PM, David Miller <da...@davemloft.net> wrote: > > From: Jesse Gross <je...@nicira.com> > > Date: Mon, 3 Sep 2012 17:57:39 -0700 > > > >> On Fri, Jul 20, 2012 at 3:26 PM, Jesse Gross <je...@nicira.com> wrote: > >>> It's possible that packets that are sent on internal devices (from > >>> the OVS perspective) have already traversed the local IP stack. > >>> After they go through the internal device, they will again travel > >>> through the IP stack which may get confused by the presence of > >>> existing information in the skb. The problem can be observed > >>> when switching between namespaces. This clears out that information > >>> to avoid problems but deliberately leaves other metadata alone. > >>> This is to provide maximum flexibility in chaining together OVS > >>> and other Linux components. > >>> > >>> Signed-off-by: Jesse Gross <je...@nicira.com> > >> > >> It was recently discovered that the bug that this patch fixes is > >> causing problems in the real world. Can you please queue this for > >> stable in 3.4/3.5? It's currently in Linus's tree as > >> 7fe99e2d434eafeac0c57b279a77e5de39212636. > >> > > > > What vendor is shipping openvswitch enabled and requires the fix to > > be in -stable before they'll ship it to customers? > > > > That goes into what is 'real world' > > Fedora is running into it I believe. Chris Wright asked for it so he > might be able to elaborate more on their plans.
I've not hit the bug myself, but been made aware of the issue from OpenStack/Quantum folks. There's a testing scenario that hits this as described in this launchpad bug: https://bugs.launchpad.net/quantum/+bug/1044318 thanks, -chris _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
