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[110.175.118.133]) by smtp.gmail.com with ESMTPSA id h8sm6969026pfv.60.2021.05.18.07.35.38 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 18 May 2021 07:35:41 -0700 (PDT) Date: Tue, 18 May 2021 14:35:35 +0000 From: Rudi Heitbaum To: Greg Kroah-Hartman Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, Florian Fainelli , Vladimir Oltean , "David S. Miller" , Sasha Levin Subject: Re: [PATCH 5.12 081/363] net: bridge: propagate error code and extack from br_mc_disabled_update Message-ID: <20210518143531.GA20@e07e318d3c06> References: <20210517140302.508966430@linuxfoundation.org> <20210517140305.339768334@linuxfoundation.org> <20210518122449.GA65@ec3d6f83b95b> <20210518141238.GA20@416f1e4b4f0c> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 18, 2021 at 04:28:30PM +0200, Greg Kroah-Hartman wrote: > On Tue, May 18, 2021 at 02:12:42PM +0000, Rudi Heitbaum wrote: > > 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 > > > > > > > > > > [ 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 > > > > > Signed-off-by: Vladimir Oltean > > > > > Signed-off-by: David S. Miller > > > > > Signed-off-by: Sasha Levin > > > > > --- > > > > > 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! > > > > > > greg k-h > > > > Hi Greg, > > > > I can confirm that docker starts correctly with 5.13-rc1 > > > > # dmesg | head > > [ 0.000000] Linux version 5.13.0-rc1 (rudi@0e5f93d4a8a2) (x86_64-libreelec-linux-gnu-gcc-10.3.0 (GCC) 10.3.0, GNU ld (GNU Binutils) 2.36.1) #1 SMP Tue May 18 14:00:41 UTC 2021 > > [ 0.000000] Command line: BOOT_IMAGE=/KERNEL boot=LABEL=LIBREELEC disk=LABEL=STORAGE i915.enable_guc=2 quiet > > ... > > [ 11.214582] docker0: port 1(veth2b37ac4) entered blocking state > > [ 11.214589] docker0: port 1(veth2b37ac4) entered disabled state > > [ 11.214649] device veth2b37ac4 entered promiscuous mode > > [ 11.214752] docker0: port 1(veth2b37ac4) entered blocking state > > [ 11.214755] docker0: port 1(veth2b37ac4) entered forwarding state > > Great, can you try 5.12.5-rc2 now? > > thanks, > > greg k-h confirmed working now. Thanks Rudi