Segfault in nix eval when requesting existant output

Bug Reports
1

‘’’
[default] jeg@Jamess-MacBook-Air aniMotum_nix % nix eval ‘nixpkgs#libtiff.out’
zsh: segmentation fault nix eval ‘nixpkgs#libtiff.out’
‘’’

what i meant to type was:
nix eval ‘nixpkgs#libtiff.outputs’

out is one of the outputs of libtff.

if you instead do i non-existant output, it prints an error message.

[default] jeg@Jamess-MacBook-Air aniMotum_nix % nix eval ‘nixpkgs#libtiff.foobar’
error: flake ‘flake:nixpkgs’ does not provide attribute ‘packages.aarch64-darwin.libtiff.foobar’, ‘legacyPackages.aarch64-darwin.libtiff.foobar’ or ‘libtiff.foobar’

but if the output does exist (for example “out” is listed by .outputs), it segfaults:

[default] jeg@Jamess-MacBook-Air aniMotum_nix % nix eval ‘nixpkgs#libtiff.out’
zsh: segmentation fault nix eval ‘nixpkgs#libtiff.out’

this is not a horrible bug to me, i just mention in case it you want to fix it.

2

Thanks for the report, I’ll get this filed and prioritized.

3

It looks to me like this issue has been fixed by nix upstream.
I also want to highlight that since this wasn’t an error with flox itself, this bug is more appropriately reported to GitHub - NixOS/nix: Nix, the purely functional package manager.

4

thanks!

i am working on a big project for my lab right now,

and it just uses plain old matlab,

so my flox/nix adventures are on pause.

before my pause, i spoke with the hpc people at my university (we call it the sherlock cluster here)

and they said that they mainly like singularity for this kind of task. i think i can generate a container

with flox and then run that with singularity. so when i come off my matlab binge that is the

direction i will pursue.

1 Like