On Fri, 22 Jan 2016 22:03:55 +0100 Álvaro Fernández Rojas <noltari@xxxxxxxxx> wrote: > From linux-4.2 there's a "hw csum failure" for bridges using hardware > checksums when IPv6 multicast traffic is received. > > Here are some reports: > https://lkml.org/lkml/2015/12/1/699 > https://bugzilla.redhat.com/show_bug.cgi?id=1266601 > https://discourse.osmc.tv/t/hw-csum-failure/9990 > https://github.com/raspberrypi/linux/issues/1259 > > I think it may have been introduced in commit > 9afd85c9e4552b276e2f4cfefd622bdeeffbbf26 (net: Export IGMP/MLD message > validation code) but I haven't done any tests to confirm it. > Any help on this issue would be really appreciated. > > Regards, > Álvaro. What hardware? You missed the kernel bugzilla? If it was reported there I would have forwarded it to netdev@xxxxxxxxxxxxxxx. Can you reproduce it with 4.4?