Greg, On Tue, May 18, 2021 at 02:39:43PM +0200, Greg Kroah-Hartman wrote: > On Tue, May 18, 2021 at 12:24:57PM +0000, Rudi Heitbaum wrote: > > On Mon, May 17, 2021 at 03:59:07PM +0200, Greg Kroah-Hartman wrote: > > > From: Florian Fainelli <f.fainelli@xxxxxxxxx> > > > > > > [ Upstream commit ae1ea84b33dab45c7b6c1754231ebda5959b504c ] > > > > > > Some Ethernet switches might only be able to support disabling multicast > > > snooping globally, which is an issue for example when several bridges > > > span the same physical device and request contradictory settings. > > > > > > Propagate the return value of br_mc_disabled_update() such that this > > > limitation is transmitted correctly to user-space. > > > > > > Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx> > > > Signed-off-by: Vladimir Oltean <vladimir.oltean@xxxxxxx> > > > Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> > > > Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> > > > --- > > > net/bridge/br_multicast.c | 28 +++++++++++++++++++++------- > > > net/bridge/br_netlink.c | 4 +++- > > > net/bridge/br_private.h | 3 ++- > > > net/bridge/br_sysfs_br.c | 8 +------- > > > 4 files changed, 27 insertions(+), 16 deletions(-) > > > > This patch results in docker failing to start, and a regression between > > 5.12.4 and 5.12.5-rc1 > > > > A working dmesg output is like: > > > > [ 11.545255] device eth0 entered promiscuous mode > > [ 11.693848] process 'docker/tmp/qemu-check643160757/check' started with executable stack > > [ 17.233059] br-92020c7e3aea: port 1(veth17a0552) entered blocking state > > [ 17.233065] br-92020c7e3aea: port 1(veth17a0552) entered disabled state > > [ 17.233098] device veth17a0552 entered promiscuous mode > > [ 17.292839] docker0: port 2(veth9d227f5) entered blocking state > > [ 17.292848] docker0: port 2(veth9d227f5) entered disabled state > > [ 17.292946] device veth9d227f5 entered promiscuous mode > > [ 17.293070] docker0: port 2(veth9d227f5) entered blocking state > > [ 17.293075] docker0: port 2(veth9d227f5) entered forwarding state > > > > with this patch "device veth17a0552 entered promiscuous mode" never > > shows up. > > > > the docker error itself is: > > > > docker: Error response from daemon: failed to create endpoint > > sleepy_dijkstra on network bridge: adding interface veth8cbd8f9 to > > bridge docker0 failed: operation not supported. > > Ick. > > Does 5.13-rc1 also show this same problem? > > And thanks for testing! Did you backport this patch too? https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=68f5c12abbc9b6f8c5eea16c62f8b7be70793163
