Hi,

Rutherther via Bug reports for GNU Guix <bug-guix@gnu.org> writes:

Hi Ludo

Ludovic Courtès <l...@gnu.org> writes:

What command did you run, precisely?  I cannot experience it:

For home, I tried my own config, and since I was pretty sure any system container is affected (tried a simple one, my one and I know one other person reported this in Matrix channel), I didn't try anything simpler
and just assumed all homes are going to be affected as well.
Now trying simpler config you mentioned, that one works fine.

The command was `guix home container -L ./home/modules ./home/home-container.scm` in my repository. It's here https://git.ditigal.xyz/~ruther/guix-config. Any idea what service could cause this behavior with lock-mounts? Would
be good to isolate it, but I am not sure where to start.

Here is the unshare error I was talking about earlier:
guix home: error: unshare: 268566528: Invalid argument
Now I am getting it consistently, before it was missing sometimes.
Currently on
```
./target/guix/bin/guix describe
  guix 300d29e
    repository URL: https://codeberg.org/guix/guix-mirror
    branch: master
    commit: 300d29e69988caf23684f08effa51f621c7ec083
  nonguix 1940698
    repository URL: https://gitlab.com/nonguix/nonguix
    branch: master
    commit: 19406981a9bf9d0b140180f1f3008cb91f716b4b
  ruther 1a49e47
    repository URL: https://git.ditigal.xyz/~ruther/guix-exprs
    branch: main
    commit: 1a49e4760bd922237532fa2eee44bc9e1fe42399
  rde bf8f628
    repository URL: https://git.sr.ht/~abcdw/rde
    branch: master
    commit: bf8f628c4deb9acc94e261db80d301048ea1f0a2
```

Thanks
Rutherther

I'm getting this "unshare: 268566528: Invalid argument" error just using `guix shell -C -m manifest.scm` when I was trying to develop a local Haskell package today, and I think it might be relevant to this bug. Here is the backtrace:

--8<---------------cut here---------------start------------->8---
guix shell: error: unshare: 268566528: Invalid argument
Backtrace:
16 (primitive-load "/home/hiecaq/.config/guix/current/bin/…")
In guix/ui.scm:
  2369:7 15 (run-guix . _)
 2332:10 14 (run-guix-command _ . _)
In ice-9/boot-9.scm:
 1752:10 13 (with-exception-handler _ _ #:unwind? _ # _)
In guix/status.scm:
   839:4 12 (call-with-status-report _ _)
In guix/store.scm:
   703:3 11 (_)
In ice-9/boot-9.scm:
 1752:10 10 (with-exception-handler _ _ #:unwind? _ # _)
In guix/store.scm:
  690:37  9 (thunk)
  1331:8  8 (call-with-build-handler _ _)
1331:8 7 (call-with-build-handler #<procedure 7f364c36aea0 at g…> …)
In guix/scripts/environment.scm:
 1184:11  6 (proc _)
In guix/store.scm:
2212:25 5 (run-with-store #<store-connection 256.100 7f364cd41050> …)
In guix/scripts/environment.scm:
   898:8  4 (_ _)
In gnu/build/linux-container.scm:
485:7 3 (call-with-container _ _ #:namespaces _ #:host-uids _ # …)
In unknown file:
          2 (waitpid #f #<undefined>)
In ice-9/boot-9.scm:
 1685:16  1 (raise-exception _ #:continuable? _)
 1685:16  0 (raise-exception _ #:continuable? _)

ice-9/boot-9.scm:1685:16: In procedure raise-exception:
Wrong type (expecting exact integer): #f
--8<---------------cut here---------------end--------------->8---

Here is my manifest:

--8<---------------cut here---------------start------------->8---
(use-modules (guix)
            (guix build-system haskell)
            (guix git-download)
            ((guix licenses) #:prefix license:)
            (gnu packages)
            (gnu packages xorg) ;; for libxpm
            (gnu packages wm) ;; for ghc-xmobar
            (gnu packages haskell)
            (gnu packages haskell-apps))

(specifications->manifest
(list "ghc-xmobar" "ghc" "gcc-toolchain" "libxpm"))

(define %source-dir (dirname (current-filename)))

(define xmobar-hiecaq
 (package
   (name "xmobar-hiecaq")
   (version "0.0.1")
   (source
    (local-file %source-dir
                #:recursive? #t
                #:select? (git-predicate %source-dir)))
   (build-system haskell-build-system)
   (inputs (list ghc-xmobar
                 libxpm))
   (home-page "")
   (synopsis
    "")
   (description
    "")
   (license license:gpl3+)))

(concatenate-manifests
(list
 (specifications->manifest
  (list "coreutils" "git" "which"))
 (packages->manifest (list cabal-install))
 (package->development-manifest xmobar-hiecaq)))
--8<---------------cut here---------------end--------------->8---

What I did is basically the following things in order (I believe only the manifest is needed to reproduce):
1. `guix shell -C -m manifest.scm`
2. then I attempted `cabal build` but I realized that now I need writable root. So 3. I quit the current shell and then `guix shell -C -m manifest.scm --writable-root`, it failed with the above error. 4. After that, `guix shell -C -m manifest.scm` also failed, but if I kept retrying sometimes it succeeded. With `--writable-root` it failed consistently.

Output of `guix describe`:

--8<---------------cut here---------------start------------->8---
Generation 26   May 17 2025 09:41:21    (current)
 nonguix e4459f4
   repository URL: https://gitlab.com/nonguix/nonguix
   branch: master
   commit: e4459f4802e8b222eec55196d44c25dc7a5bc53b
 guix 6465931
   repository URL: https://git.savannah.gnu.org/git/guix.git
   branch: master
   commit: 6465931bbc118d4ed9da652b0be74ed844b52b2a
--8<---------------cut here---------------end--------------->8---


I had been using Guix at the commit `d505cb960fd1e670be9a66d9fdbad94bc49e891d` before yesterday (so `--writable-root` were not introduced yet) and I had never got any similar error before. I hope my case is reproducible ;)

Thanks,
hiecaq



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