Source: linux
Version: 4.19.28-2~bpo9+1
Severity: important
X-Debbugs-Cc: [email protected]
User: [email protected]
Usertags: needed-by-DSA-Team
Hi,
after upgrading conova-node01.debian.org to the stretch-backports kernel
to see if #929359 was reproducible, it started dropping packets. This
was not happening prior to the upgrade.
Running "ip link set dev eth0 mtu 1504" seems to make things work.
May 22 13:32:49 conova-node01/conova-node01 kernel: IPv6: ADDRCONF(NETDEV_UP):
eth1: link is not ready
May 22 13:32:49 conova-node01/conova-node01 kernel: IPv6: ADDRCONF(NETDEV_UP):
eth2: link is not ready
May 22 13:32:49 conova-node01/conova-node01 kernel: openvswitch: Open vSwitch
switching datapath
May 22 13:32:49 conova-node01/conova-node01 kernel: xgene-enet
1f210000.ethernet eth0: Link is Down
May 22 13:32:49 conova-node01/conova-node01 kernel: device ovs-system entered
promiscuous mode
May 22 13:32:49 conova-node01/conova-node01 kernel: netlink: 'ovs-vswitchd':
attribute type 5 has an invalid length.
May 22 13:32:49 conova-node01/conova-node01 kernel: netlink: 'ovs-vswitchd':
attribute type 5 has an invalid length.
May 22 13:32:49 conova-node01/conova-node01 kernel: device eth0 entered
promiscuous mode
May 22 13:32:49 conova-node01/conova-node01 kernel: xgene-enet
1f210030.ethernet eth1: Link is Down
May 22 13:32:49 conova-node01/conova-node01 kernel: netlink: 'ovs-vswitchd':
attribute type 5 has an invalid length.
May 22 13:32:49 conova-node01/conova-node01 kernel: device br-inet entered
promiscuous mode
May 22 13:32:50 conova-node01/conova-node01 kernel: xgene-enet
1f610000.ethernet eth2: Link is Up - 10Gbps
May 22 13:32:50 conova-node01/conova-node01 kernel: IPv6:
ADDRCONF(NETDEV_CHANGE): eth2: link becomes ready
May 22 13:32:51 conova-node01/conova-node01 kernel: xgene-enet
1f210000.ethernet eth0: Link is Up - 1Gbps/Full - flow control off
May 22 13:32:52 conova-node01/conova-node01 kernel: IPv6:
ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
May 22 13:32:52 conova-node01/conova-node01 kernel: xgene-enet
1f210030.ethernet eth1: Link is Up - 1Gbps/Full - flow control off
May 22 13:32:59 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:32:59 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:32:59 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:32:59 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:00 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:00 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:00 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:00 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:00 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:00 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:07 conova-node01/conova-node01 kernel: net_ratelimit: 5 callbacks
suppressed
May 22 13:33:07 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:08 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:15 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:17 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:30 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:34 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:37 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:37 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:37 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:37 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:37 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:37 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:37 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:37 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:37 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:37 conova-node01/conova-node01 kernel: br-inet: dropped over-mtu
packet: 1504 > 1500
May 22 13:33:43 conova-node01/conova-node01 kernel: net_ratelimit: 31 callbacks
suppressed
The network is configured as per bug #929359:
/etc/network/interfaces:
# The loopback network interface
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet manual
pre-up echo 1 > /proc/sys/net/ipv6/conf/$IFACE/disable_ipv6
pre-up ip link set dev $IFACE up
post-down ip link set dev $IFACE down
# The primary network interface
allow-hotplug br-inet
iface br-inet inet static
address 217.196.149.227/28
gateway 217.196.149.238
iface br-inet inet6 static
address 2a02:16a8:dc41:100::227/64
gateway 2a02:16a8:dc41:100::def
auto eth1
iface eth1 inet static
address 172.29.186.11/24
auto eth2
iface eth2 inet static
address 172.29.184.11/24
bridge config:
# ovs-vsctl show
91934a25-b86f-4d3a-a598-19f915404192
Bridge br-inet
Port "tap0"
Interface "tap0"
Port "eth0"
Interface "eth0"
Port br-inet
Interface br-inet
type: internal
Port "tap2"
Interface "tap2"
error: "could not open network device tap2 (No such device)"
Port "tap1"
Interface "tap1"
ovs_version: "2.6.2"
Cheers,
Julien
