Distributions wanted features & bugfixes

[ojeda]

Features that we would like to see

Required (we almost certainly want them)

Nice to have (not critical, we could workaround if needed, etc.)

Low priority (we will likely not use them in the end)

Done (stabilized, fixed, not needed anymore, etc.)

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Bugs that we would like to see fixed

Required (we almost certainly want them)

• Ubuntu non-LTS 24.10: failure building kernel with tracepoints code (due to bindgen <= 0.69.5 && libclang >= 19.1).

  • Bug report: https://bugs.launchpad.net/ubuntu/+source/rust-bindgen-cli/+bug/2086639.
  • List: archives do not show it?
  • Patch: https://lore.kernel.org/rust-for-linux/20241111201607.653149-1-ojeda@kernel.org/.

• Ubuntu LTS 24.04: failure building kernel due to the interior nulls issue (due to bindgen == 0.66.x, i.e. not present in < 0.66 nor >= 0.67).

  • A workaround is using the bindgen-0.65 package, which is what we have in the Quick Start instructions.
  • Bug report: https://bugs.launchpad.net/ubuntu/+source/rust-bindgen-cli/+bug/2086641.
  • Commit: 981ad93 ("rust: warn about bindgen versions 0.66.0 and 0.66.1").

• Ubuntu: versioned toolchains (e.g. rustc-1.80-src): missing lib/rustlib/src in sysroot.

  • This forces developers to tweak RUST_LIB_SRC (and us to give custom instructions for Ubuntu in our Quick Start guide: https://docs.kernel.org/next/rust/quick-start.html#ubuntu, see commit 38f022b ("docs: rust: quick-start: add Ubuntu")).
  • Bug report: https://bugs.launchpad.net/ubuntu/+source/rustc-1.80/+bug/2090791.
  • Fixed in 1.80.1+dfsg0ubuntu1-0ubuntu2 (currently only in Ubuntu 25.04: https://packages.ubuntu.com/search?keywords=rustc-1.80&searchon=names&suite=all&section=all).
  • Fixed in 1.81.0+dfsg0ubuntu1-0ubuntu2 (currently only in Ubuntu 25.04: https://packages.ubuntu.com/search?keywords=rustc-1.81&searchon=names&suite=all&section=all).

Nice to have (probably not critical, we could workaround if needed, etc.)

Low priority (we will likely not use them in the end)

Done (stabilized, fixed, or not needed anymore, etc.)

• Fedora 41: failure building kernel with tracepoints code (due to bindgen <= 0.69.5 && libclang >= 19.1).

  • Update: https://bodhi.fedoraproject.org/updates/FEDORA-2024-77ec58c3a3.
  • Patch: https://lore.kernel.org/rust-for-linux/20241111201607.653149-1-ojeda@kernel.org/.

• Debian Sid: failure building kernel with tracepoints code (due to bindgen <= 0.69.5 && libclang >= 19.1).

  • Bug report: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1086510.
  • Backport PR (if there is no upgrade to 0.70.x): https://salsa.debian.org/rust-team/debcargo-conf/-/merge_requests/771.
  • List: https://alioth-lists.debian.net/pipermail/pkg-rust-maintainers/2024-October/049880.html.
  • Patch: https://lore.kernel.org/rust-for-linux/20241111201607.653149-1-ojeda@kernel.org/.

• Debian: transitioning to bindgen 0.70 (from 0.66 with backports).

  • Issue: https://salsa.debian.org/rust-team/debcargo-conf/-/issues/89.
  • PR: https://salsa.debian.org/rust-team/debcargo-conf/-/merge_requests/774.