GNU bug report logs - #78453
[PATCH core-packages-team 0/1] Parallel build of xz-mesboot fails (gets stuck) on core-packages-team.

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Rutherther <rutherther <at> ditigal.xyz>
To: guix-patches <at> gnu.org
Cc: Rutherther <rutherther <at> ditigal.xyz>
Subject: [PATCH core-packages-team 0/1] Parallel build of xz-mesboot fails
 (gets stuck) on core-packages-team.
Date: Fri, 16 May 2025 12:38:00 +0200

Hello,

recently I reported xz-mesboot failing to build due to timeout in #75518.
Ludo asked me to provide more info and create a new issue, so here we go.

I am on commit 4935a8066168c3efc0520d132b6c6a3116eb5d54, currently HEAD
of core-packages-team. I am using
`./pre-inst-env guix build --expression="(@@ (gnu packages commencement) xz-mesboot)" --check --no-grafts`
for the build, in a pure shell (guix shell --pure -m ./manifest.scm). I
am on x86_64.
The same issue was exhibited by the QA on building core-packages-team
branch, timeouting after 24 hours, on all three tries.

The build gets stuck after like 20 minutes. To unstuck it, I added
--cores=1 (disabled parallel build)
It doesn't always get stuck at the same moment, but upon few retries it
never completed with parallel builds enabled.

Alternatively I think I could also
```
guix time-machine --url=https://codeberg.org/guix/guix-mirror \
  --commit=4935a8066168c3efc0520d132b6c6a3116eb5d54 -- build \
  --expression="(@@ (gnu packages commencement) xz-mesboot)" --check \
  --no-grafts
```
but the issue is that currently a lot of packages cannot be substituted
to actually build guix from this commit.

Sending a patch to disable the parallel build that should resolve this
issue. Not sure about other alternatives

Regards
Rutherther

Rutherther (1):
  gnu: xz-mesboot: Disable parallel build.

 gnu/packages/commencement.scm | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)


base-commit: 4935a8066168c3efc0520d132b6c6a3116eb5d54
--
2.49.0

Message #8 received at 78453 <at> debbugs.gnu.org (full text, mbox):

From: Rutherther <rutherther <at> ditigal.xyz>
To: 78453 <at> debbugs.gnu.org
Cc: Rutherther <rutherther <at> ditigal.xyz>
Subject: [PATCH core-packages-team 1/1] gnu: xz-mesboot: Disable parallel
 build.
Date: Fri, 16 May 2025 12:48:51 +0200

Disables parallel build, because the build gets stuck with parallel builds on
x86_64 at least.

* gnu/packages/commencement.scm (xz-mesboot): Disable parallel builds.

Change-Id: I0367363cbaaeb0ae5730242254c918cd7ec71478
---
 gnu/packages/commencement.scm | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/commencement.scm b/gnu/packages/commencement.scm
index edd4a1db46..f0ea1bec62 100644
--- a/gnu/packages/commencement.scm
+++ b/gnu/packages/commencement.scm
@@ -1939,7 +1939,10 @@ (define xz-mesboot
        (ensure-keyword-arguments (package-arguments pkg)
                                  ;; XXX: This fails even though the
                                  ;; actual runpaths seem fine.
-                                 `(#:validate-runpath? #f))))))
+                                 `(#:validate-runpath? #f
+                                 ;; XXX: The build gets stuck
+                                 ;; when parallel build is enabled.
+                                   #:parallel-build? #f))))))
 
 ;; We don't strictly need Tar here, but it allows us to get rid of
 ;; Bootar and Gash-Utils and continue with the standard GNU tools.
-- 
2.49.0

Message #13 received at 78453-done <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Rutherther <rutherther <at> ditigal.xyz>
Cc: Ekaitz Zarraga <ekaitz <at> elenq.tech>, Efraim Flashner <efraim <at> flashner.co.il>,
 78453-done <at> debbugs.gnu.org, Andreas Enge <andreas <at> enge.fr>,
 Zheng Junjie <z572 <at> z572.online>, Janneke Nieuwenhuizen <janneke <at> gnu.org>
Subject: Re: [bug#78453] [PATCH core-packages-team 1/1] gnu: xz-mesboot:
 Disable parallel build.
Date: Thu, 29 May 2025 01:04:34 +0200

Rutherther <rutherther <at> ditigal.xyz> writes:

> Disables parallel build, because the build gets stuck with parallel builds on
> x86_64 at least.
>
> * gnu/packages/commencement.scm (xz-mesboot): Disable parallel builds.
>
> Change-Id: I0367363cbaaeb0ae5730242254c918cd7ec71478

Finally pushed, thanks!

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