Hi, I have found a bug report about promisc && vlan-aware on mellanox site, of a proxmox user.
(proxmox 6.4 with kernel (5.12?) https://community.mellanox.com/s/question/0D51T00008ansfP/vlan-aware-linux-bridging-is-not-functional-on-connectx4lx-card-unless-manually-put-in-promiscuous-mode So maybe is it a kernel change ? I don't known is that ifupdown2 has been bumped to last master ? (I don't have seen special commit of this kind of change) Le mardi 29 juin 2021 à 15:31 +0200, Stoiko Ivanov a écrit : > On Tue, 29 Jun 2021 14:04:05 +0200 > Mark Schouten <[email protected]> wrote: > > > Hi, > > > > Op 29-06-2021 om 12:31 schreef Thomas Lamprecht: > > > > I do not completely understand why that fixes it though. > > > > Commenting out MACAddressPolicy=persistent helps, but why? > > > > > > > > > > > That I understand. :) > > > > But, the cluster interface works when bridge_vlan_aware is off, > > regardless of the MacAddressPolicy setting. > > > > We managed to find a reproducer - my current guess is that it might > have > something to do with intel NIC drivers or some changes in ifupdown2 (or > udev, or in their interaction ;) - Sadly if tcpdump fixes the issues, > it > makes debugging quite hard :) > > In any case - as can also be seen in the 2 reports you sent: > with vlan-aware bridges the promisc flag of the ethernet interface (the > bridge-port) is set to 0, when vlan-aware is not present it is set to > 1. > This explains the symptoms you're seeing, and why running tcpdump fixes > it > > FWIW: I think simply starting a guest would have fixed the issue as > well > (when a second bridge_port gets added the kernel sets the promisc flag > on > the port correctly) > > As Wolfgang wrote - we'll look into it and will hopefully come up with > a > sensible solution. > > Thanks for the beta-test and the report! > > > _______________________________________________ > pve-user mailing list > [email protected] > https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user _______________________________________________ pve-user mailing list [email protected] https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
