bug#41595: time-machine failure

bug#41595: time-machine failure

[Ludovic Courtès]

--8<---------------cut here---------------start------------->8---
$ guix time-machine --commit=ab0ede51c041927a1c35535aec3504f84d7a9751 -- environment --ad-hoc hello -- hello
Updating channel 'guix' from Git repository at 'https://git.savannah.gnu.org/git/guix.git'...
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
La jenaj derivoj estos konstruataj:
   /gnu/store/srb3liyzg9483ry5j1sdknkp2irzf6rm-compute-guix-derivation.drv
   /gnu/store/92nj92vkk6galkw0kikxy2fzs9n7rr27-module-import-compiled.drv
   /gnu/store/g14w05zd4lhc4qiqbcmrqznkhh4g9x06-module-import.drv
building /gnu/store/g14w05zd4lhc4qiqbcmrqznkhh4g9x06-module-import.drv...
building /gnu/store/92nj92vkk6galkw0kikxy2fzs9n7rr27-module-import-compiled.drv...
building /gnu/store/srb3liyzg9483ry5j1sdknkp2irzf6rm-compute-guix-derivation.drv...
;;; WARNING: loading compiled file /gnu/store/63819s86xv37kps3v42qsfvw5flsay0z-module-import-compiled/guix/store.go failed:
;;; In procedure load-thunk-from-memory: incompatible bytecode kind
;;; WARNING: loading compiled file /gnu/store/63819s86xv37kps3v42qsfvw5flsay0z-module-import-compiled/guix/store.go failed:
;;; In procedure load-thunk-from-memory: incompatible bytecode kind
;;; WARNING: loading compiled file /gnu/store/63819s86xv37kps3v42qsfvw5flsay0z-module-import-compiled/guix/utils.go failed:
;;; In procedure load-thunk-from-memory: incompatible bytecode kind
;;; WARNING: loading compiled file /gnu/store/63819s86xv37kps3v42qsfvw5flsay0z-module-import-compiled/guix/utils.go failed:

[...]

Backtrace:
In ice-9/eval.scm:
   293:34 19 (_ #(#(#(#<directory (guix packages) 7ffa43f1c8c0> ?)) ?))
   293:34 18 (_ #(#(#(#(#<directory (guix packages) 7ffa43?>) ?) ?) ?))
In srfi/srfi-1.scm:
   592:17 17 (map1 (("source" #<origin "mirror://gnu/guile/guil?>) ?))
In ice-9/boot-9.scm:
    829:9 16 (catch srfi-34 #<procedure 7ffa384d1480 at ice-9/eval.?> ?)
In ice-9/eval.scm:
    159:9 15 (_ #(#(#<directory (guix packages) 7ffa43f1c8c0> "s?" ?)))
In ice-9/boot-9.scm:
    152:2 14 (with-fluid* _ _ _)
    152:2 13 (with-fluid* _ _ _)
    152:2 12 (with-fluid* _ _ _)
In unknown file:
          11 (_ #<procedure 7ffa384d5dc0 at ice-9/eval.scm:330:13 ()> ?)
          10 (_ #<procedure 7ffa38544800 at ice-9/eval.scm:330:13 ()> ?)
           9 (_ #<procedure 7ffa38005180 at ice-9/eval.scm:330:13 ()> ?)
           8 (_ #<procedure 7ffa37ce8420 at ice-9/eval.scm:330:13 ()> ?)
           7 (_ #<procedure 7ffa37d21440 at ice-9/eval.scm:330:13 ()> ?)
           6 (_ #<procedure 7ffa37d35340 at ice-9/eval.scm:330:13 ()> ?)
           5 (_ #<procedure 7ffa37d37ca0 at ice-9/eval.scm:330:13 ()> ?)
           4 (_ #<procedure 7ffa37d37c40 at ice-9/eval.scm:330:13 ()> ?)
In ice-9/eval.scm:
   191:27  3 (_ #(#(#<directory (guix store) 7ffa4631f960> #<pr?>) ?))
   196:35  2 (_ #(#(#(#<directory (guix store) 7ffa4631f960> ?) #) #))
   293:34  1 (_ #(#(#(#(#(#(#(#<directory (guix g?>) ?) ?) ?) ?) ?) ?))
In unknown file:
           0 (force #<promise #<procedure 7ffa44951ea0 at ice-9/eval?>)

ERROR: In procedure force:
In procedure canonicalize-path: No such file or directory: "build/utils.scm"
guix time-machine: error: You found a bug: the program '/gnu/store/hk4bcnsyb9fzviqh90768ss63q7cpmr2-compute-guix-derivation'
failed to compute the derivation for Guix (version: "ab0ede51c041927a1c35535aec3504f84d7a9751"; system: "x86_64-linux";
host version: "9744cc7b4636fafb772c94adb8f05961b5b39f16"; pull-version: 1).
Please report it by email to <bug-guix@gnu.org>.
--8<---------------cut here---------------end--------------->8---

bug#41595: time-machine failure

[zimoun]

Hi Ludo,

On Fri, 29 May 2020 at 12:02, Ludovic Courtès <ludovic.courtes@inria.fr> wrote:

> failed to compute the derivation for Guix (version: "ab0ede51c041927a1c35535aec3504f84d7a9751"; system: "x86_64-linux";
> host version: "9744cc7b4636fafb772c94adb8f05961b5b39f16"; pull-version: 1).

--8<---------------cut here---------------start------------->8---
$ guix describe
Generation 26   May 29 2020 10:40:31    (current)
  guix 0d371c6
    repository URL: https://git.savannah.gnu.org/git/guix.git
    commit: 0d371c633f7308cfde2432d6119d386a5c63198c
--8<---------------cut here---------------end--------------->8---

After some warnings,

--8<---------------cut here---------------start------------->8---
Computing Guix derivation for 'x86_64-linux'...  WARNING: (guix build
emacs-build-system): imported module (guix build utils) overrides core
binding `delete'
;;; Failed to autoload boost in (gnu packages boost):
;;; Throw to key `unbound-variable' with args `("resolve-interface"
"no binding `~A' in module ~A" (boost (gnu packages boost)) #f)'.
;;; Failed to autoload boost in (gnu packages boost):
;;; Throw to key `unbound-variable' with args `("resolve-interface"
"no binding `~A' in module ~A" (boost (gnu packages boost)) #f)'.
WARNING: (gnu packages crypto): imported module (guix build utils)
overrides core binding `delete'
WARNING: (gnu packages databases): imported module (guix build utils)
overrides core binding `delete'
--8<---------------cut here---------------end--------------->8---

it completes and display "Hello, world!".  Well, the commit 0d371c6 is
one day older than the one you used 9744cc7.


Then, let pull the same faulty version

  guix pull --commit=9744cc7 -p /tmp/new

and re-run the time-machine using '/tmp/new/bin/guix'.  It completes too.


Do not know if it helps.

Cheers,
simon

bug#41595: time-machine failure

[Jan Nieuwenhuizen]

Ludovic Courtès writes:

> $ guix time-machine --commit=ab0ede51c041927a1c35535aec3504f84d7a9751 -- environment --ad-hoc hello -- hello

[..]

> Backtrace:

Yes, that's what I get.

After pulling back to (April 24th)

--8<---------------cut here---------------start------------->8---
$ guix describe
Generation 53	May 29 2020 12:53:10	(current)
  guix 2520059
    repository URL: https://git.savannah.gnu.org/git/guix.git
    commit: 2520059bdb43fa1663ce102f3f4c442d4918c32b
--8<---------------cut here---------------end--------------->8---

it works again

--8<---------------cut here---------------start------------->8---
14:02:31 janneke@dundal:~/src/guix/master [env]
$ guix time-machine --commit=ab0ede51c041927a1c35535aec3504f84d7a9751 -- environment --ad-hoc hello -- hello
Updating channel 'guix' from Git repository at 'https://git.savannah.gnu.org/git/guix.git'...
guile: warning: failed to install locale
Hello, world!
--8<---------------cut here---------------end--------------->8---

Janneke

-- 
Jan Nieuwenhuizen <janneke@gnu.org> | GNU LilyPond http://lilypond.org
Freelance IT http://JoyofSource.com | Avatar® http://AvatarAcademy.com

bug#41595: time-machine failure

[Ludovic Courtès]

Hi,

zimoun <zimon.toutoune@gmail.com> skribis:

> it completes and display "Hello, world!".  Well, the commit 0d371c6 is
> one day older than the one you used 9744cc7.

During that interval, I see two potential culprits:

  01611d141e quirks: Add patch for <https://bugs.gnu.org/41214>.
  9db8836916 channels: 'build-from-source' restores '%guile-for-build'.

This is fixed by 36640207c9543e48cd6daa92930f023f80065a5d, which also
fixes the “incompatible bytecode” warnings.

> Then, let pull the same faulty version
>
>   guix pull --commit=9744cc7 -p /tmp/new
>
> and re-run the time-machine using '/tmp/new/bin/guix'.  It completes too.

That’s because the inferior for that commit is cached in
~/.cache/guix/inferiors.  That “hides” the problem.

Thanks, comrades!

Ludo’.

bug#41595: time-machine failure

[Jan Nieuwenhuizen]

Ludovic Courtès writes:

Hello!

> zimoun <zimon.toutoune@gmail.com> skribis:
>
>> it completes and display "Hello, world!".  Well, the commit 0d371c6 is
>> one day older than the one you used 9744cc7.
>
> During that interval, I see two potential culprits:
>
>   01611d141e quirks: Add patch for <https://bugs.gnu.org/41214>.
>   9db8836916 channels: 'build-from-source' restores '%guile-for-build'.
>
> This is fixed by 36640207c9543e48cd6daa92930f023f80065a5d, which also
> fixes the “incompatible bytecode” warnings.

Beautiful, thank you!

> Thanks, comrades!

Yeah, indeed :-)

Janneke

-- 
Jan Nieuwenhuizen <janneke@gnu.org> | GNU LilyPond http://lilypond.org
Freelance IT http://JoyofSource.com | Avatar® http://AvatarAcademy.com

bug#41595: time-machine failure

[zimoun]

Hey!

On Fri, 29 May 2020 at 18:34, Ludovic Courtès <ludovic.courtes@inria.fr> wrote:

> During that interval, I see two potential culprits:
>
>   01611d141e quirks: Add patch for <https://bugs.gnu.org/41214>.
>   9db8836916 channels: 'build-from-source' restores '%guile-for-build'.
>
> This is fixed by 36640207c9543e48cd6daa92930f023f80065a5d, which also
> fixes the “incompatible bytecode” warnings.

Cool!


> >   guix pull --commit=9744cc7 -p /tmp/new
> >
> > and re-run the time-machine using '/tmp/new/bin/guix'.  It completes too.
>
> That’s because the inferior for that commit is cached in
> ~/.cache/guix/inferiors.  That “hides” the problem.

Good to know.  Thank you for the explanation.
So if I would like to reproduce using this strategy, before the new
pull, I should have to "garbage collect" to remove this cache, right?


Cheers,
simon

bug#41595: time-machine failure

[Ludovic Courtès]

zimoun <zimon.toutoune@gmail.com> skribis:

>> That’s because the inferior for that commit is cached in
>> ~/.cache/guix/inferiors.  That “hides” the problem.
>
> Good to know.  Thank you for the explanation.
> So if I would like to reproduce using this strategy, before the new
> pull, I should have to "garbage collect" to remove this cache, right?

Yeah, you can rm ~/.cache/guix/inferiors/* to be sure.

Ludo’.