Thanks Xavier and Dumitru. I addressed the nits and pushed the change
to main and branch-25.09.

On Thu, Dec 4, 2025 at 5:56 AM Dumitru Ceara via dev
<[email protected]> wrote:
>
> Hi Xavier,
>
> Thanks for v2!
>
> On 12/3/25 3:54 PM, Xavier Simonart wrote:
> > sb_port_group_lookup_by_name() can return NULL if the (stale) record
> > it's searching for has been deleted in transactions that are processed
> > in the current iteration.
>
> Nit (but this can be addressed by whoever merges the patch): I'd add an
> empty line here.
>
> > This caused segfault such as:
> > ovsdb_idl_row_is_synthetic (row=0x0) at lib/ovsdb-idl.c:2724
> > ovsdb_idl_txn_delete (row_=0x0) at lib/ovsdb-idl.c:3834
> > port_group_nb_port_group_handler (node=<optimized out>, data_=<optimized 
> > out>) at northd/en-port-group.c:616
> > ...
> >
> > Signed-off-by: Xavier Simonart <[email protected]>
> > Fixes: a1d82e9fa11e ("northd: Process port_group changes incrementally.")
>
> Nit (but this can be addressed by whoever merges the patch): the
> Signed-off-by should be the last line in the commit log.
>
> >
> > ---
> > -v2: based on Dumitru's feedback:
> >      - Updated commit message.
> >      - Update test case.
> > ---
> >  northd/en-port-group.c |  2 ++
> >  tests/ovn-northd.at    | 27 +++++++++++++++++++++++++++
> >  2 files changed, 29 insertions(+)
> >
> > diff --git a/northd/en-port-group.c b/northd/en-port-group.c
> > index 476c0a18d..d0b7961fb 100644
> > --- a/northd/en-port-group.c
> > +++ b/northd/en-port-group.c
> > @@ -613,7 +613,9 @@ port_group_nb_port_group_handler(struct engine_node 
> > *node, void *data_)
> >          const struct sbrec_port_group *sb_pg =
> >              sb_port_group_lookup_by_name(sbrec_port_group_by_name,
> >                                           stale_sb_port_group_name);
> > +        if (sb_pg) {
> >              sbrec_port_group_delete(sb_pg);
> > +        }
> >      }
> >
> >      sset_destroy(&stale_sb_port_groups);
> > diff --git a/tests/ovn-northd.at b/tests/ovn-northd.at
> > index 931064fe6..168e34f7e 100644
> > --- a/tests/ovn-northd.at
> > +++ b/tests/ovn-northd.at
> > @@ -18914,3 +18914,30 @@ wait_row_count Igmp_Group 0 address=mrouters
> >  OVN_CLEANUP_NORTHD
> >  AT_CLEANUP
> >  ])
> > +
> > +OVN_FOR_EACH_NORTHD_NO_HV([
> > +AT_SETUP([port group segfault])
> > +
> > +ovn_start
> > +
> > +check ovn-nbctl ls-add sw0
> > +check ovn-nbctl lsp-add sw0 sw0-port1 \
> > +             -- lsp-set-addresses sw0-port1 "50:54:00:00:00:01 192.168.0.2"
> > +
> > +check ovn-nbctl pg-add pg1
> > +check ovn-nbctl --wait=sb pg-set-ports pg1 sw0-port1
> > +
> > +sleep_sb
> > +sleep_northd
> > +check ovn-nbctl pg-del pg1
> > +check ovn-nbctl pg-add pg1
> > +check ovn-nbctl pg-set-ports pg1 sw0-port1
> > +
> > +wake_up_sb
> > +wake_up_northd
> > +check ovn-nbctl pg-del pg1
> > +check ovn-nbctl --wait=sb sync
> > +
> > +OVN_CLEANUP_NORTHD
> > +AT_CLEANUP
> > +])
>
> The change looks good to me, thanks!
>
> Acked-by: Dumitru Ceara <[email protected]>
>
> Regards,
> Dumitru
>
>
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>

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