Build failure: lixPackageSets.latest.lix

[Kiskae]

Nixpkgs version

• Stable (26.05)

Steps to reproduce

• nix build nixpkgs/nixos-26.05#lixPackageSets.latest.lix

Can Hydra reproduce this build failure?

Yes, Hydra can reproduce this build failure.

Link to Hydra build job

https://hydra.nixos.org/build/332131086

Relevant log output

Summary of Failures:

6/6 check - lix:libstore-unit-tests �[1;31mFAIL          �[0m 1319.27s   killed by signal 4 SIGILL

Additional context

The build for nixos-unstable is fine, so somewhere the derivations have diverged

System metadata

• system: "x86_64-linux"
• host os: Linux 7.0.10-zen1, NixOS, 26.05 (Yarara), 26.05.20260618.e8210c6
• multi-user?: yes
• sandbox: yes
• version: nix-env (Lix, like Nix) 2.95.2 System type: x86_64-linux Additional system types: i686-linux, x86_64-v1-linux, x86_64-v2-linux, x86_64-v3-linux Features: gc, signed-caches System configuration file: /etc/nix/nix.conf User configuration files: /home/kiskae/.config/nix/nix.conf:/nix/store/j2rc2z2nfv6rfncvnfa9b8wxvjyvyjjv-plasma-workspace-6.6.5/etc/xdg/nix/nix.conf:/nix/store/qiq8caxqaq7l861ra0rzm9xhgxwmnc0m-kglobalacceld-6.6.5/etc/xdg/nix/nix.conf:/nix/store/1qdbg1pm35jg71vcn81pm4dfckrsfllr-baloo-6.26.0/etc/xdg/nix/nix.conf:/home/kiskae/.config/kdedefaults/nix/nix.conf:/home/kiskae/.config/kdedefaults/nix/nix.conf:/etc/xdg/nix/nix.conf:/home/kiskae/.nix-profile/etc/xdg/nix/nix.conf:/nix/profile/etc/xdg/nix/nix.conf:/home/kiskae/.local/state/nix/profile/etc/xdg/nix/nix.conf:/etc/profiles/per-user/kiskae/etc/xdg/nix/nix.conf:/nix/var/nix/profiles/default/etc/xdg/nix/nix.conf:/run/current-system/sw/etc/xdg/nix/nix.conf Store directory: /nix/store State directory: /nix/var/nix Data directory: /nix/store/p2hwi96xf5iwc719jspcn1c0dh3sn7rp-lix-2.95.2/share
• nixpkgs: /nix/store/zny1nwmq6v9bkmjgpqrgngy7n7653mfh-source

Notify maintainers

@NixOS/lix-maintainers @lf- @Qyriad @RaitoBezarius

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[RaitoBezarius]

This is a known bug we are tracking which is related to curl: see #Store > Plan for curl brokenness for upstream tracking.

[Kiskae]

For anyone finding this issue, I've used the following override to pin the last working version of curl as suggested in the thread:

  ## Lix
  nix.package = pkgs.lixPackageSets.latest.lix.override {
    # broken since 8.20.0 (with patch) for this use-case
    curl = pkgs.curl.overrideAttrs {
      version = "8.20.0";
      src = pkgs.fetchurl {
        urls = [
          "https://curl.haxx.se/download/curl-8.20.0.tar.xz"
          "https://github.com/curl/curl/releases/download/curl-8_20_0/curl-8.20.0.tar.xz"
        ];
        hash = "sha256-Y/4twUi6DOromSLvg49+XJRicsLni3xZ+rS3nTziuJY=";
      };
      patches = [];
    };
  };

[Atemu]

It's just the newly added "performance patch" that caused the breakage; the src override is superflous. See above PR for a "clean" workaround.

[Kiskae]

It's just the newly added "performance patch" that caused the breakage; the src override is superflous. See above PR for a "clean" workaround.

I added that override so it doesn't break when 8.21.0 gets merged, but fair enough

[vcunat]

A workaround was merged now, but it make take something like two days to reach the nixos-26.05 channel.

[Kiskae]

@vcunat @Atemu presumably this is going to happen again with #534906 since the patch was a backport

[Atemu]

Ugh, and it's security-critical too of course. The short-term workaround would be to revert the patch but yuck. We should probably get into contact with upstream regarding the patch and its downstream effects.