GNU bug report logs - #53463
ci.guix.gnu.org not building the 'guix' job

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From: Ludovic Courtès <ludo <at> gnu.org>
To: Mathieu Othacehe <othacehe <at> gnu.org>
Cc: 53463 <at> debbugs.gnu.org, Leo Famulari <leo <at> famulari.name>
Subject: bug#53463: ci.guix.gnu.org not building the 'guix' job
Date: Fri, 04 Feb 2022 09:58:44 +0100

Hello!

Mathieu Othacehe <othacehe <at> gnu.org> skribis:

> I tried to strace one of the stuck evaluation process, it returns
> repeatedly:
>
> [pid 36294] read(227, "gmlo\0\0\0\0J\0\0\0\0\0\0\0guix offload: error: failed to connect to 'localhost': Connection refused\n\0\0\0\0\0\0", 65536) = 96
> [pid 36294] write(239, "gmlo\0\0\0\0J\0\0\0\0\0\0\0guix offload: error: failed to connect to 'localhost': Connection refused\n\0\0\0\0\0\0", 96) = 96
> [pid 36294] rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0
> [pid 36294] pselect6(240, [40 227 239], [], [], NULL, NULL) = 1 (in [227])
> [pid 36294] read(227, "gmlo\0\0\0\0G\0\0\0\0\0\0\0process 40190 acquired build slot '/var/guix/offload/localhost:2224/0'\n\0", 65536) = 88
> [pid 36294] write(239, "gmlo\0\0\0\0G\0\0\0\0\0\0\0process 40190 acquired build slot '/var/guix/offload/localhost:2224/0'\n\0", 88) = 88
> [pid 36294] rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0
> [pid 36294] pselect6(240, [40 227 239], [], [], NULL, NULL) = 1 (in [227])
> [pid 36294] read(227, "gmlo\0\0\0\0J\0\0\0\0\0\0\0guix offload: error: failed to connect to 'localhost': Connection refused\n\0\0\0\0\0\0", 65536) = 96
> [pid 36294] write(239, "gmlo\0\0\0\0J\0\0\0\0\0\0\0guix offload: error: failed to connect to 'localhost': Connection refused\n\0\0\0\0\0\0", 96) = 96
> [pid 36294] rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0
> [pid 36294] pselect6(240, [40 227 239], [], [], NULL, NULL) = 1 (in [227])
> [pid 36294] read(227, "gmlo\0\0\0\0G\0\0\0\0\0\0\0process 40190 acquired build slot '/var/guix/offload/localhost:2224/0'\n\0", 65536) = 88
> [pid 36294] write(239, "gmlo\0\0\0\0G\0\0\0\0\0\0\0process 40190 acquired build slot '/var/guix/offload/localhost:2224/0'\n\0", 88) = 88
> [pid 36294] rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0
> [pid 36294] pselect6(240, [40 227 239], [], [], NULL, NULL) = 1 (in [227])
> [pid 36294] read(227, "gmlo\0\0\0\0J\0\0\0\0\0\0\0guix offload: error: failed to connect to 'localhost': Connection refused\n\0\0\0\0\0\0", 65536) = 96
> [pid 36294] write(239, "gmlo\0\0\0\0J\0\0\0\0\0\0\0guix offload: error: failed to connect to 'localhost': Connection refused\n\0\0\0\0\0\0", 96) = 96

Oh!  That indicates that it’s failing to offload to one of the
‘localhost’ build machines specified in /etc/guix/machines.scm.
Normally there’s an SSH tunnel set up for those, but I guess it broke.

Perhaps we can update /etc/guix/machines.scm to refer to armhf-linux
machines by their WireGuard IP?

Thanks,
Ludo’.

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