** Description changed: - iproute2 upstream produces releases coinciding with upstream kernel - releases to support the latest kernel features. Noble's iproute2 is - still back at v6.1 even though it will use the v6.8 kernel. This means - we provide no userspace interface for newer features - some of which are - noted by a networking hardware partner in bug 2060969. + [Impact] + Several networking features introduced in the upstream 6.2->6.8 kernels are not accessible to noble users because noble lacks the corresponding iproute2 update. This includes support for new hardware features such as per-VF offload settings (see bug 2060969), but many others that you can see in the attached changelogs. - Ubuntu's iproute2 has diverged from Debian's to add support for Ubuntu - FAN. Noble has dropped kernel support for Ubuntu FAN, so those are no - longer needed, and we could now just do a merge. We could also port the - FAN patches forward if we can identify a need (see the original - description of this bug to a link to such a port), but I have not done - any testing with that. + Normally iproute2 is updated during the devel cycle to align with the + kernel version, but it was missed this cycle and discovered too late for + an FFe. We request an exception from the SRU team to do this as an SRU. + This includes dropping the Ubuntu Fan patches, which adds features to + iproute2 that no longer work since noble's kernels no longer support + Ubuntu Fan. - I have built Debian's iproute2 in a noble ppa at ppa:dannf/test and - smoke tested it on an amd64 virtual machine: + [Test Case] + We'll run the 6.8 kernel self tests, which make use of a number of iproute2 features (see comment #17). NVIDIA's networking organization (Mellanox) has offered to put this through their QA process (details TBD). The upstream test suite will also run in the autopkgtests, though that suite is fairly stale. - ubuntu@cortez-vm-0:~$ sudo dpkg -i iproute2_6.8.0-1~24.04.1_amd64.deb - (Reading database ... 83134 files and directories currently installed.) - Preparing to unpack iproute2_6.8.0-1~24.04.1_amd64.deb ... - Unpacking iproute2 (6.8.0-1~24.04.1) over (6.1.0-1ubuntu6) ... - dpkg: warning: unable to delete old directory '/etc/iproute2/rt_tables.d': Directory not empty - dpkg: warning: unable to delete old directory '/etc/iproute2/rt_protos.d': Directory not empty - dpkg: warning: unable to delete old directory '/etc/iproute2': Directory not empty - Setting up iproute2 (6.8.0-1~24.04.1) ... - Removing obsolete conffile /etc/iproute2/group ... - Removing obsolete conffile /etc/iproute2/rt_realms ... - Removing obsolete conffile /etc/iproute2/rt_scopes ... - Removing obsolete conffile /etc/iproute2/rt_tables ... - Removing obsolete conffile /etc/iproute2/rt_tables.d/README ... - Removing obsolete conffile /etc/iproute2/rt_protos.d/README ... - Removing obsolete conffile /etc/iproute2/rt_protos ... - Removing obsolete conffile /etc/iproute2/rt_dsfield ... - Removing obsolete conffile /etc/iproute2/nl_protos ... - Removing obsolete conffile /etc/iproute2/ematch_map ... - Removing obsolete conffile /etc/iproute2/bpf_pinning ... - Processing triggers for man-db (2.12.0-4build1) ... + [What Could Go Wrong] + Users who may be running noble userspace with a non-noble kernel that supports Ubuntu Fan would lose support for configuring it. If the SRU team considers this to be a regression we should avoid, then we can add the Ubuntu Fan patches back. - The system rebooted fine. The ip command seems to behave normally. + iproute2 6.8 upstream retains backwards compatibility with earlier + releases (see comment #17). There are no commits with a Fixes: + annotation since the v6.8.0 tag was applied upstream. - Since the upstream test suite only appears to run at autopkgtest time, I triggered a run in my PPA, and it passed: - https://autopkgtest.ubuntu.com/results/autopkgtest-noble-dannf-test/noble/amd64/i/iproute2/20240412_210819_97417@/log.gz + iproute2 is obviously a key package, and any upstream version bump + carries risk. This includes the possibility of breaking networking for + users of an Ubuntu LTS release.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to iproute2 in Ubuntu. Matching subscriptions: iproute2 https://bugs.launchpad.net/bugs/2051672 Title: Backport iproute2 6.8.0 to noble Status in iproute2 package in Ubuntu: Incomplete Bug description: [Impact] Several networking features introduced in the upstream 6.2->6.8 kernels are not accessible to noble users because noble lacks the corresponding iproute2 update. This includes support for new hardware features such as per-VF offload settings (see bug 2060969), but many others that you can see in the attached changelogs. Normally iproute2 is updated during the devel cycle to align with the kernel version, but it was missed this cycle and discovered too late for an FFe. We request an exception from the SRU team to do this as an SRU. This includes dropping the Ubuntu Fan patches, which adds features to iproute2 that no longer work since noble's kernels no longer support Ubuntu Fan. [Test Case] We'll run the 6.8 kernel self tests, which make use of a number of iproute2 features (see comment #17). NVIDIA's networking organization (Mellanox) has offered to put this through their QA process (details TBD). The upstream test suite will also run in the autopkgtests, though that suite is fairly stale. [What Could Go Wrong] Users who may be running noble userspace with a non-noble kernel that supports Ubuntu Fan would lose support for configuring it. If the SRU team considers this to be a regression we should avoid, then we can add the Ubuntu Fan patches back. iproute2 6.8 upstream retains backwards compatibility with earlier releases (see comment #17). There are no commits with a Fixes: annotation since the v6.8.0 tag was applied upstream. iproute2 is obviously a key package, and any upstream version bump carries risk. This includes the possibility of breaking networking for users of an Ubuntu LTS release. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/iproute2/+bug/2051672/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
