On Tue, Jun 9, 2026 at 10:57 AM Eelco Chaudron <[email protected]> wrote:

>
>
> On 9 Jun 2026, at 16:48, Numan Siddique wrote:
>
> [...]
>
> >> Hi Numan,
> >>
> >> I think you're running into a known limitation, but first I want to
> mention
> >> that you should not use dpctl/del-flows in production, as it will mess
> up
> >> OVS's internal state.
> >>
> >
> > Thanks Eelco for looking into it.
> >
> > Yes.  In prod we see the issue without flushing the flows.  I could
> > reproduce
> > locally and faster by flushing the dp flows.
> >
> >
> >
> >>
> >> Below is a test case that replicates the problem, a known issue. It's a
> >> quick and dirty attempt to show you the problem.
> >>
> >>   sudo make -j 128 check-offloads \
> >>     TESTSUITEFLAGS="-k 'split recirc rules kernel vs offload' -v"
> >>
> >> I do not have a quick fix for this, as it requires some kind of
> signaling
> >> across the boundaries from ofproto, to dpif, and to hardware offload
> (and
> >> back).
> >>
> >> I'll try to come up with something quick and dirty later today or this
> >> week,
> >> so you can see if it really is the same problem you are facing.
> >>
> >
> > Thanks
>
> Hi Numan,
>
> I put together a quick hack to verify this is the issue. I am not
> sure it covers all corner cases, and I am not entirely happy with
> the approach either. However I tried several alternatives and
> this seems to be the cleanest so far.
>
> Give it a shot and let me know. If I find more time in the next
> couple of weeks I will try to work on a proper fix.
>
> You can find the patch here:
> https://github.com/chaudron/ovs/tree/refs/heads/dev/numan


Hi Eelco,

Thanks for taking the time out to provide the fix.

I'll test it out and update here.

I asked Claude to fix it and this is what it came up with -
https://github.com/numansiddique/ovs/commit/21c8de4181412ba670fc023abf6851bfe99f23b3

Doesn't seem to me it's the right approach.  I tested it and it worked.

Thanks
Numan



> Cheers,
>
> Eelco
>
>
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