** Tags added: sts -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1820929
Title: netplan should consider adding more udev attribute for exact matching of failover 3-netdev interfaces Status in netplan: Triaged Status in netplan.io package in Ubuntu: Triaged Status in systemd package in Ubuntu: Incomplete Bug description: This bug is a follow-up to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1815268 after applying the 0001-net_failover-delay-taking-over-primary-device- to-acc.patch attached in that bug, the VF interface "eth0" is renamed to "rename4" instead of "ens4". Log is showing that attempt to rename "eth0" to "ens3" failed because of conflict with existing name, so that's why it ends up with rename4. vsbalakr@ubuntu-18:~$ uname -a Linux ubuntu-18 4.15.0-1009-oracle #11+lp1815268 SMP Tue Mar 12 15:20:15 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux vsbalakr@ubuntu-18:~$ ip l 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000 link/ether ba:fb:9f:12:2f:02 brd ff:ff:ff:ff:ff:ff 3: ens3nsby: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master ens3 state UP mode DEFAULT group default qlen 1000 link/ether ba:fb:9f:12:2f:02 brd ff:ff:ff:ff:ff:ff 4: rename4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ens3 state UP mode DEFAULT group default qlen 1000 link/ether ba:fb:9f:12:2f:02 brd ff:ff:ff:ff:ff:ff vsbalakr@ubuntu-18:~$ egrep -i '(rename4|busy)' /var/log/syslog ... Mar 18 11:01:52 ubuntu-18 NetworkManager[1294]: <info> [1552932112.9591] device (rename4): carrier: link connected Mar 18 11:01:52 ubuntu-18 NetworkManager[1294]: <info> [1552932112.9591] device (rename4): enslaved to non-master-type device ens3; ignoring Mar 18 11:01:53 ubuntu-18 systemd-udevd[2463]: error changing net interface name 'eth0' to 'ens3': Device or resource busy Mar 18 11:01:53 ubuntu-18 systemd-udevd[2463]: could not rename interface '4' from 'eth0' to 'ens3': Device or resource busy Within VM there's netplan config as below: vsbalakr@ubuntu-18:~$ cat /etc/netplan/01-netcfg.yaml # This file describes the network interfaces available on your system # For more information, see netplan(5). network: version: 2 renderer: networkd ethernets: ens3: dhcp4: yes gateway4: 10.211.8.1 nameservers: addresses: [10.211.11.1,10.209.76.197] By running udevadm test, we can see the conflicting ens3 name comes from netplan's /run/udev/rules.d/99-netplan-ens3.rules vsbalakr@ubuntu-18:~$ cat /run/udev/rules.d/99-netplan-ens3.rules SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="ba:fb:9f:12:2f:02", NAME="ens3" vsbalakr@ubuntu-18:/lib/udev/rules.d$ udevadm test --action="add" /sys/class/net/eth0 calling: test version 237 This program is for debugging only, it does not run any program specified by a RUN key. It may show incorrect results, because some values may be different, or not available at a simulation run. Load module index Parsed configuration file /lib/systemd/network/99-default.link Parsed configuration file /run/systemd/network/10-netplan-ens3.link Created link configuration context. Reading rules file: /lib/udev/rules.d/01-md-raid-creating.rules .. Reading rules file: /lib/udev/rules.d/99-vmware-scsi-udev.rules rules contain 393216 bytes tokens (32768 * 12 bytes), 38638 bytes strings 25317 strings (216160 bytes), 21957 de-duplicated (180883 bytes), 3361 trie nodes used RUN '/lib/open-iscsi/net-interface-handler start' /lib/udev/rules.d/70-iscsi-network-interface.rules:2 IMPORT builtin 'net_id' /lib/udev/rules.d/75-net-description.rules:6 IMPORT builtin 'hwdb' /lib/udev/rules.d/75-net-description.rules:12 RUN 'ifupdown-hotplug' /lib/udev/rules.d/80-ifupdown.rules:5 IMPORT builtin 'path_id' /lib/udev/rules.d/80-net-setup-link.rules:5 IMPORT builtin 'net_setup_link' /lib/udev/rules.d/80-net-setup-link.rules:9 Config file /lib/systemd/network/99-default.link applies to device eth0 link_config: autonegotiation is unset or enabled, the speed and duplex are not writable. link_config: could not set ethtool features for eth0 Could not set offload features of eth0: Operation not permitted NAME 'ens4' /lib/udev/rules.d/80-net-setup-link.rules:11 NAME 'ens3' /run/udev/rules.d/99-netplan-ens3.rules:1 RUN '/lib/systemd/systemd-sysctl --prefix=/net/ipv4/conf/$name --prefix=/net/ipv4/neigh/$name --prefix=/net/ipv6/conf/$name --prefix=/net/ipv6/neigh/$name' /lib/udev/rules.d/99-systemd.rules:60 error changing net interface name 'eth0' to 'ens3': Operation not permitted could not rename interface '4' from 'eth0' to 'ens3': Operation not permitted ACTION=add DEVPATH=/devices/pci0000:00/0000:00:04.0/net/eth0 ID_BUS=pci ID_MM_CANDIDATE=1 ID_MODEL_FROM_DATABASE=Ethernet Connection X552 Virtual Function ID_MODEL_ID=0x15a8 ID_NET_DRIVER=ixgbevf ID_NET_LINK_FILE=/lib/systemd/network/99-default.link ID_NET_NAME=ens4 ID_NET_NAME_MAC=enxbafb9f122f02 ID_NET_NAME_PATH=enp0s4 ID_NET_NAME_SLOT=ens4 ID_PATH=pci-0000:00:04.0 ID_PATH_TAG=pci-0000_00_04_0 ID_PCI_CLASS_FROM_DATABASE=Network controller ID_PCI_SUBCLASS_FROM_DATABASE=Ethernet controller ID_VENDOR_FROM_DATABASE=Intel Corporation ID_VENDOR_ID=0x8086 IFINDEX=4 INTERFACE=eth0 SUBSYSTEM=net SYSTEMD_ALIAS=/sys/subsystem/net/devices/ens3 TAGS=:systemd: USEC_INITIALIZED=202183958 run: '/lib/open-iscsi/net-interface-handler start' run: 'ifupdown-hotplug' run: '/lib/systemd/systemd-sysctl --prefix=/net/ipv4/conf/ens3 --prefix=/net/ipv4/neigh/ens3 --prefix=/net/ipv6/conf/ens3 --prefix=/net/ipv6/neigh/ens3' Unload module index Unloaded link configuration context. So with regard to failover 3-netdev model, MAC address is not sufficient to serve as the key to identify individual interface. Unfortunately driver attribute is not sufficient either, the failover master and standy slave share the same driver under virtio_net. There should be other new attribute to introduce in order to correctly identify the interface belonging to 3-netdev. To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1820929/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
