#50238 [PATCH] build-self: Try printing nicer error messages.

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To: Jessica Tallon <tsyesika@tsyesika.se>, 57411@debbugs.gnu.org,
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From: Maxime Devos <maximedevos@telenet.be>
Subject: Re: bug#57411: Error when guix pull on aarch64-linux
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[Message part 1 (text/plain, inline)]

block 57411 with 50238
thanks

On 25-08-2022 19:50, Jessica Tallon wrote:
> Hello,
>
> I've tried to install linux on my phone which is a arm64 device
> (Sailfish OS) and I get an error when I try to run `guix pull`. The
> error is:
>
> Updating channel 'guix' from Git repository at 'https://git.savannah.gnu.org/git/guix.git'...
> Authenticating channel 'guix', commits 9edb3f6 to 26ff8a4 (1 new commits)...
> Building from this channel:
>    guixhttps://git.savannah.gnu.org/git/guix.git    26ff8a4
> substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
> building /gnu/store/g83xiljbqic95p55jrnxcblv1xg42r8m-compute-guix-derivation.drv...
> Computing Guix derivation for 'aarch64-linux'... \Backtrace:
>            15 (primitive-load "/gnu/store/dqql69hadwvlkb0f85m8603r72ln34lm-compute-guix-derivation")
> In ice-9/eval.scm:
>      155:9 14 (_ _)
>      159:9 13 (_ #(#(#(#(#(#(#(#(#(#(#(#(#(#(#(#(#<directory (guile-u?> ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?))
> In ice-9/boot-9.scm:
>      152:2 12 (with-fluid* _ _ _)
>      152:2 11 (with-fluid* _ _ _)
> In ./guix/store.scm:
>    2168:24 10 (run-with-store #<store-connection 256.99 7c0d42e230> _ #:guile-for-build _ #:system _ #:target _)
>     1996:8  9 (_ _)
> In ./guix/gexp.scm:
>     300:22  8 (_ _)
>     1181:2  7 (_ _)
>     1047:2  6 (_ _)
>      893:4  5 (_ _)
> In ./guix/store.scm:
>    2053:12  4 (_ #<store-connection 256.99 7c0bd27910>)
>     1401:5  3 (map/accumulate-builds #<store-connection 256.99 7c0bd27910> #<procedure 7c0c21df30 at ./guix/store.sc?> ?)
>    1417:15  2 (_ #<store-connection 256.99 7c0bd27910> _ _)
>     711:11  1 (process-stderr #<store-connection 256.99 7c0bd27910> _)
> In ./guix/serialization.scm:
>       80:6  0 (read-int #<input-output: file 10>)
>
> ./guix/serialization.scm:80:6: In procedure read-int:
> ERROR:
>    1. &nar-error:
>        file: #f
>        port: #<input-output: file 10>
> guix pull: error: You found a bug: the program '/gnu/store/dqql69hadwvlkb0f85m8603r72ln34lm-compute-guix-derivation'
> failed to compute the derivation for Guix (version: "26ff8a4b733c06b4f38aa1fb1ec6705bf30eae4a"; system: "aarch64-linux";
> host version: "1.3.0"; pull-version: 1).

This backtrace does not appear to have useful information for debugging 
the issue, perhaps https://issues.guix.gnu.org/50238 could help by using 
the with-error-handling to format the error messages properly.

> As a GUIX aarch64 user on many devices, I can say it’s not a common 
> problem.
> How much RAM do you have on your device? Do you have swap/zram?
As mentioned previously in another thread, the name is Guix, not GUIX. 
GUIX is a Microsoft thing.

To test for out-of-memory problems, you could dmesg (ideally Guix would 
hook into cgroups or whatever to be notified about out-of-memory and 
properly indicate the error message).

&nar-error sounds more like a substitute-related (because 'nar) network 
error to me though.

Greetings,
Maxime.

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