Subject: Re: bug#55639: time-machine back in 2020: weird error

From: zimoun <[email-masked]>
Date: Tue, 31 May 2022 18:33:01 +0200

Hi,

On mar., 31 mai 2022 at 16:32, Ludovic Courtès <[email-masked]> wrote:

> $ guix time-machine --commit=a7b20226b2 -- build hello
> guile: warning: failed to install locale
> /gnu/store/a462kby1q51ndvxdv3b6p0rsixxrgx1h-hello-2.10

It works on all of my machine except my newest one…

>> Last, on machine B, the time-machine just works.  Maybe it is related to
>> NVMe and something like [1].

…and what is different between all my machines and the newest one?

One thing is CPU.  It reminds me the unrelated OpenBLAS failure [1].
Well, the situation is:

* Fail

        i7-10700K  (Comet Lake)

* Build

        i7-6500U   (Skylake)        <-- Ludo ?
        5218       (Cascade Lake)

1: <https://yhetil.org/guix/[email-masked]>

> Can you fiddle at the REPL and try to see more precisely what’s failing?
>
>   guix time-machine --commit=a7b20226b2 -- repl -q

--8<---------------cut here---------------start------------->8---
$ guix time-machine --commit=a7b20226b2 -- repl -q
guile: warning: failed to install locale
GNU Guile 3.0.2
Copyright (C) 1995-2020 Free Software Foundation, Inc.

Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
This program is free software, and you are welcome to redistribute it
under certain conditions; type `,show c' for details.

Enter `,help' for help.
scheme@(guix-user)> (use-modules (guix store) (guix packages) (gnu packages base))
scheme@(guix-user)> (with-store store (package-derivation store hello))
ice-9/boot-9.scm:1669:16: In procedure raise-exception:
Throw to key `match-error' with args `("match" "no matching pattern" #<derivation /gnu/store/c6hgmfq0i4zgryqyl0ab1ms51fnrkmdv-bootstrap-binaries-0.drv => /gnu/store/5bdaayvl6cs8nrdivskz4dbrsy2m009c-bootstrap-binaries-0 7f131ff71be0>)'.

Entering a new prompt.  Type `,bt' for a backtrace or `,q' to continue.
scheme@(guix-user) [1]> ,bt
In ice-9/boot-9.scm:
  1736:10 27 (with-exception-handler _ _ #:unwind? _ #:unwind-for-type _)
In guix/store.scm:
   630:22 26 (thunk)
In guix/packages.scm:
   966:16 25 (package-derivation _ #<package [email-masked] gnu/packages/base.scm:74 7f131fcbb000> _ #:graft? _)
  1285:22 24 (thunk)
  1218:25 23 (bag->derivation #<store-connection 256.99 7f131feb4500> #<<bag> name: "hello-2.10" system: "x86_64-linux" target: #f build-inputs: (("sour…> …)
In srfi/srfi-1.scm:
   586:29 22 (map1 (("source" #<origin "mirror://gnu/hello/hello-2.10.tar.gz" ghqgme32sythn2e7nhi3mu4c32k2p335sffyzokw6qpkolqpkfvq () 7f131fcb9000>) (…) …))
   586:17 21 (map1 (("tar" #<package [email-masked] guix/build-system/gnu.scm:143 7f131ff2ff00>) ("gzip" #<package [email-masked] guix/build-system/gnu.scm:143…>) …))
In guix/packages.scm:
  1009:16 20 (expand-input #<store-connection 256.99 7f131feb4500> #<package [email-masked] gnu/packages/base.scm:74 7f131fcbb000> ("tar" #<package tar@1.…>) …)
   966:16 19 (package-derivation _ #<package [email-masked] guix/build-system/gnu.scm:143 7f131ff2ff00> _ #:graft? _)
  1285:22 18 (thunk)
  1218:25 17 (bag->derivation #<store-connection 256.99 7f131feb4500> #<<bag> name: "tar-1.32" system: "x86_64-linux" target: #f build-inputs: (("source…> …)
In srfi/srfi-1.scm:
   586:17 16 (map1 (("source" #<origin "mirror://gnu/tar/tar-1.32.tar.xz" 2dj24b7ramzdx2ajxq7kydomhbwvfrjgesm74bkrdlchrcxr7xma ("/gnu/store/p4lmsp0k…>) …))
In guix/packages.scm:
   1028:5 15 (expand-input _ _ _ _ _)
In ice-9/boot-9.scm:
  1736:10 14 (with-exception-handler _ _ #:unwind? _ #:unwind-for-type _)
In guix/packages.scm:
  1033:18 13 (_)
In guix/store.scm:
  2017:24 12 (run-with-store #<store-connection 256.99 7f131feb4500> #<procedure 7f131ff3d400 at guix/gexp.scm:234:5 (state)> #:guile-for-build _ #:system …)
   1851:8 11 (_ _)
In guix/gexp.scm:
    961:2 10 (_ _)
    821:2  9 (_ _)
In guix/store.scm:
  1899:12  8 (_ #<store-connection 256.99 7f131feb4500>)
   1336:2  7 (map/accumulate-builds #<store-connection 256.99 7f131feb4500> _ _)
In srfi/srfi-1.scm:
   586:17  6 (map1 ((#<package bootstrap-binaries@0 gnu/packages/bootstrap.scm:212 7f132c44ae60> "out") ("/gnu/store/3vcinqz2z8j8n78jd83xxbh2bb15mxxw…") …))
In guix/store.scm:
   1295:8  5 (call-with-build-handler #<procedure build-accumulator (continue store things mode)> _)
  2017:24  4 (run-with-store #<store-connection 256.99 7f131feb4500> #<procedure 7f131ff92d20 at guix/gexp.scm:691:8 (state)> #:guile-for-build _ #:system …)
In guix/gexp.scm:
   693:18  3 (_ _)
In ice-9/boot-9.scm:
  1669:16  2 (raise-exception _ #:continuable? _)
  1667:16  1 (raise-exception _ #:continuable? _)
  1669:16  0 (raise-exception _ #:continuable? _)
scheme@(guix-user) [1]>
--8<---------------cut here---------------end--------------->8---

Let me know what could be useful to debug this?

Thanks,
simon