[ovs-dev] [PATCH 2/4] tests: Make vxlan frag test more reliable.

Ben Pfaff blp at ovn.org
Sat Feb 6 03:37:19 UTC 2016


On Fri, Jan 29, 2016 at 12:34:12PM -0800, Joe Stringer wrote:
> On 29 January 2016 at 11:37, Joe Stringer <joe at ovn.org> wrote:
> > Depending on the kernel version in use, the nf_conntrack module may
> > register hooks for each namespace and execute conntrack prior to passing
> > packets to OVS (or not). In cases where this happens, the previous flow
> > table in this test would trust the local stack's connection tracking and
> > use it rather than sending packets through conntrack itself (and
> > therefore handling IP defragmentation/fragmentation).
> >
> > This patch revealed two fatal datapath bugs, fixed by these commits:
> > 86c2eb45fd82 datapath: Fix panic sending IP frags over tunnels.
> > XXXXXXXXXXXX datapath: inet: frag: Always orphan skbs inside ip_defrag().
> >
> > Signed-off-by: Joe Stringer <joe at ovn.org>
> 
> I should have made this more clear and perhaps included this testsuite
> with the latter XXXXX patch above. Note that without that patch, this
> test will crash your kernel.

That worries me.

Acked-by: Ben Pfaff <blp at ovn.org>



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