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#55639
time-machine back in 2020: weird error
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Message #23 received at 55639 <at> debbugs.gnu.org (full text, mbox):
Hi Ludo,
On mer., 01 juin 2022 at 11:44, Ludovic Courtès <ludo <at> gnu.org> wrote:
> I don’t think it has anything to do with that. Seems more like a
> problem in our code that would only manifest under special
> circumstances—we just need to find out what makes them special. :-)
[...]
> That looks like <https://issues.guix.gnu.org/53594>. I don’t have a
> good hypothesis for that yet, but I’m guessing it’s stateful: the bug
> manifests if some things are missing from the store.
Another data point. Recompile a7b20226b2 using recent Guile.
--8<---------------cut here---------------start------------->8---
$ guix describe
Generation 3 mai 10 2022 22:44:08 (current)
guix 9d795fb
repository URL: https://git.savannah.gnu.org/git/guix.git
branch: master
commit: 9d795fb8fd3feffe584462cdfe3869acee64d226
$ git log --oneline -1
a7b20226b2 (HEAD -> old-a7b20226b2) gnu: python-libmpsse: Update to 1.4.1.
$ guix shell -D guix --container
[env]$ ./bootstrap && ./configure --localstatedir=/var && make scripts/guix make-go -j32
[env]$ exit
exit
$ guix shell -D guix --pure
[env]$ ./pre-inst-env guix describe
Git checkout:
repository: /home/simon/src/guix/guix
branch: old-a7b20226b2
commit: a7b20226b2bf1a73b8f0f6536e7fa43326f35e33
[env]$ ./pre-inst-env guix build hello
/gnu/store/a462kby1q51ndvxdv3b6p0rsixxrgx1h-hello-2.10
--8<---------------cut here---------------end--------------->8---
> Could you try:
>
> guix time-machine --commit=a7b20226b2 -- build hello --no-grafts
>
> If it works, does the same command without ‘--no-grafts’ work
> afterwards?
It does not work when using no-grafts. However, a big ’guix gc’ makes
it work. It is really weird. Note that the previous pre-inst-env is
done before GC.
Well, I have not been enough attentive to correctly save the problematic
part. Now, I am unable to reproduce. )-:
It is hard to know what had been initially substituted and what had been
locally recompiled. I mean, today and after GC, it looks like,
--8<---------------cut here---------------start------------->8---
0,4 MB will be downloaded
module-import-compiled 99KiB 597KiB/s 00:00 [##################] 100.0%
libfontenc-1.1.4 13KiB 2.3MiB/s 00:00 [##################] 100.0%
module-import-compiled 56KiB 601KiB/s 00:00 [##################] 100.0%
mkfontscale-1.2.1 20KiB 3.7MiB/s 00:00 [##################] 100.0%
module-import-compiled 116KiB 860KiB/s 00:00 [##################] 100.0%
mkfontdir-1.0.7 4KiB 3.3MiB/s 00:00 [##################] 100.0%
module-import-compiled 9KiB 2.9MiB/s 00:00 [##################] 100.0%
module-import-compiled 56KiB 853KiB/s 00:00 [##################] 100.0%
module-import-compiled 46KiB 1.1MiB/s 00:00 [##################] 100.0%
building /gnu/store/splvvik624s9nyxysz6b1970pq5hy4gp-config.scm.drv...
building /gnu/store/w3229vmzf5620pkcn785xfw1ahl3jhri-config.scm.drv...
building /gnu/store/lhrdcca79hjjnmhz25bgzmg1a9hc3j7i-guix-config-source.drv...
building /gnu/store/i63lwisk345si6552rwyry3pfaa6wqij-guix-core-source.drv...
building /gnu/store/hsskiqmzd6822jxqday78kqabi0m3dj6-guix-config.drv...
building /gnu/store/dhxdn4wc1rdw13cmy8b20qc23vgvirvc-guix-core.drv...
[...]
--8<---------------cut here---------------end--------------->8---
all these derivations are locally built and I do not know what happened
a couple of days ago. If these had been substituted and if the
substitutes had something incompatible with my hardware for whatever
reason, then weird behaviour. Hum, too many if. :-)
Cheers,
simon
This bug report was last modified 2 years and 158 days ago.
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