#47759 python-minimal tests hang

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From: Ludovic Courtès <ludo@gnu.org>
To: Leo Famulari <leo@famulari.name>
Subject: Re: bug#47759: python-minimal tests hang
References: <20210413223817.13450547@scratchpost.org>
 <YHYNevMS+41BqxYF@jasmine.lan>
Date: Thu, 22 Apr 2021 22:29:08 +0200
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 13 Apr 2021 17:30:34 -0400")
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Hi!

Leo Famulari <leo@famulari.name> skribis:

> $ guix describe
> Generation 15   Apr 13 2021 23:26:10    (current)
>   guix 822eacc
>     repository URL: https://git.savannah.gnu.org/git/guix.git
>     commit: 822eacc6bb0878323e6687d4460a7c53066545e1
> $ guix build --derivations --no-grafts python-minimal 
> /gnu/store/qkggqs5pxr9fmczc6gn5rs3d51ykhh36-python-minimal-3.8.2.drv
> $ guix build --derivations --no-grafts python-minimal-wrapper
> /gnu/store/qvib4wzz542czxfsl7dw4bnlz0kdrm82-python-minimal-wrapper-3.8.2.drv

FWIW, berlin has binaries for x86_64 and armhf (the two you mentioned):

--8<---------------cut here---------------start------------->8---
$ guix time-machine --commit=822eacc6bb0878323e6687d4460a7c53066545e1 -- build python-minimal --no-grafts -s x86_64-linux -s armhf-linux -d
/gnu/store/y9g688q1ffk6gbyiwda3pw5wb29q0a2x-python-minimal-3.8.2.drv
/gnu/store/qkggqs5pxr9fmczc6gn5rs3d51ykhh36-python-minimal-3.8.2.drv
$ guix time-machine --commit=822eacc6bb0878323e6687d4460a7c53066545e1 -- build python-minimal --no-grafts -s x86_64-linux -s armhf-linux 
/gnu/store/c7s4wslhi6idzprnnigabw8bz4lp7gn8-python-minimal-3.8.2
/gnu/store/z3zxs5pynvnq7mcpsr1nkh5hbb9hicf5-python-minimal-3.8.2
$ guix time-machine --commit=822eacc6bb0878323e6687d4460a7c53066545e1 -- weather python-minimal -s x86_64-linux -s armhf-linux 
computing 1 package derivations for armhf-linux...
computing 1 package derivations for x86_64-linux...
looking for 2 store items on https://ci.guix.gnu.org...
https://ci.guix.gnu.org
  100.0% substitutes available (2 out of 2)
  at least 67.2 MiB of nars (compressed)
  153.0 MiB on disk (uncompressed)
  0.085 seconds per request (0.2 seconds in total)
  11.8 requests per second

  at least 1,000 queued builds
      aarch64-linux: 1000 (100.0%)
  build rate: 36.16 builds per hour
      x86_64-linux: 8.38 builds per hour
      i686-linux: 20.25 builds per hour
      aarch64-linux: 8.93 builds per hour
--8<---------------cut here---------------end--------------->8---

I also rebuilt it locally on my x86_64 laptop and it ran to completion
(although there’s a bitwise reproducibility issue):

--8<---------------cut here---------------start------------->8---
$ time guix time-machine --commit=822eacc6bb0878323e6687d4460a7c53066545e1 -- build python-minimal --check --no-grafts -v1
La jena derivo estos konstruata:
   /gnu/store/qkggqs5pxr9fmczc6gn5rs3d51ykhh36-python-minimal-3.8.2.drv

building /gnu/store/qkggqs5pxr9fmczc6gn5rs3d51ykhh36-python-minimal-3.8.2.drv...
- 'compress-documentation' phaseguix build: error: derivation `/gnu/store/qkggqs5pxr9fmczc6gn5rs3d51ykhh36-python-minimal-3.8.2.drv' may not be deterministic: output `/gnu/store/z3zxs5pynvnq7mcpsr1nkh5hbb9hicf5-python-minimal-3.8.2' differs

real    9m45.336s
user    0m3.490s
sys     0m0.289s
--8<---------------cut here---------------end--------------->8---

So… no problem?  Or perhaps it’s a function of the number of cores or
something?  (Here that’s with 2 cores/4 threads.)

Ludo’.

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