I would like to propose to write a rule to rename a removable Realtek 8153 interface with ID_NET_NAME_PATH instead of ID_NET_NAME_MAC.
The solution may impact users using Realtek 8153 and manipulate it by the interface name since the name is not consistent and will change when switching USB port. Networkmanager is not affected since it identifies interfaces via UUID. -- 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/1843381 Title: Dell system takes a long time to connect network with external dock Status in OEM Priority Project: New Status in systemd package in Ubuntu: New Bug description: This is a bug reopen from https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1837700 The original one caused systemd regressed. https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1842651 This issue needs an alternative solution. -------------------------------------------------------------------------------- Dell has a feature called MAC addrss passthrough[1] that would force usb ethernet adapters to be assigned with a predefined MAC address stored in BIOS or so. This feature has been landed to mainline kernel in driver r8152[2]. So whenever a r8152 managed device is plugged into Dell devices with MAC addrss passthrough enabled, this driver will set NIC MAC to a predefined one. And some Dell devices have already one built-in r8152 NIC port. On these devices, when a second r8152 NIC is plugged in, a Debian originated udev rules file 73-usb-net-by-mac.rules[3] will invoke udev built-in command `net_id` to give a persistent name, and that will be based on MAC address. However, since the system has already initialized the built-in r8152 NIC with that name, renaming the second interface with this name will always fail. While Debian still carries a patch called "Revert-udev-network-device- renaming-immediately-give.patch"[4] that tries to keep support of already deprecated "75-persistent-net-generator.rules" based interface renaming mechanism, this patch also propagated into Ubuntu[5]. This patch will retry renaming with a 90 seconds timeout when the error code is -EEXIST, so the uevent processing will always be blocked in the last ifrename step in the victim system. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: udev 237-3ubuntu10.24 [modified: lib/udev/rules.d/50-firmware.rules lib/udev/rules.d/50-udev-default.rules lib/udev/rules.d/73-special-net-names.rules lib/udev/rules.d/73-usb-net-by-mac.rules] ProcVersionSignature: Ubuntu 4.15.0-1043.48-oem 4.15.18 Uname: Linux 4.15.0-1043-oem x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 CurrentDesktop: ubuntu:GNOME CustomUdevRuleFiles: 70-snap.core.rules 95-oem-hotkey-osd.rules Date: Wed Jul 24 15:30:59 2019 DistributionChannelDescriptor: # This is the distribution channel descriptor for the OEM CDs # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-bionic-amd64-20180608-47+beaver-jorah+X90 InstallationDate: Installed on 2019-07-03 (20 days ago) InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20180608-09:38 MachineType: Dell Inc. Latitude 7424 Rugged Extreme ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-1043-oem.efi.signed root=UUID=5da90c85-3500-49a2-b989-71a604f9eec4 ro mem_sleep_default=deep quiet splash systemd.log_level=debug udev.log-priority=debug log_buf_len=8M vt.handoff=1 SourcePackage: systemd UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/27/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.5.0 dmi.board.name: 0Y7FK3 dmi.board.vendor: Dell Inc. dmi.board.version: X03 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.5.0:bd05/27/2019:svnDellInc.:pnLatitude7424RuggedExtreme:pvr:rvnDellInc.:rn0Y7FK3:rvrX03:cvnDellInc.:ct10:cvr: dmi.product.family: Latitude dmi.product.name: Latitude 7424 Rugged Extreme dmi.sys.vendor: Dell Inc. [1]: https://www.dell.com/support/article/tw/zh/twdhs1/sln301147/what-is-mac-address-pass-through?lang=en [2]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/net/usb/r8152.c [3]: https://salsa.debian.org/systemd-team/systemd/blob/master/debian/extra/rules/73-usb-net-by-mac.rules [4]: https://salsa.debian.org/systemd-team/systemd/blob/master/debian/patches/debian/Revert-udev-network-device-renaming-immediately-give.patch [5]: https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/tree/debian/patches/debian/Revert-udev-network-device-renaming-immediately-give.patch?h=ubuntu-bionic To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1843381/+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
