GNU bug report logs - #55441
Use of 'primitive-fork' in (guix inferior) leads to hangs in 'cuirass evaluate'

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Message #37 received at 55441 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
Cc: 55441 <at> debbugs.gnu.org, Mathieu Othacehe <othacehe <at> gnu.org>
Subject: Re: bug#55441: [cuirass] hang in "In progress..."; runs out of
 pgsql connections
Date: Fri, 20 May 2022 20:32:58 +0200

Hi!

Ludovic Courtès <ludo <at> gnu.org> skribis:

> wait4(83882,    # hangs forever
>
>
> The question to me becomes: why is ‘guix repl’ not getting EOF from its
> read(0, …) call?

The answer was that another child process (an inferior) was holding a
copy of the socketpair file descriptor connected to that ‘guix repl’
standard input.

Fixed in Guix commit a4994d739306abcf3f36706012fb88b35a970e6b with a
test that reproduces the issue.

Commit d02b7abe24fac84ef1fb1880f51d56fc9fb6cfef updates the ‘guix’
package so we should be able to reconfigure berlin now and hopefully
(crossing fingers!) be done with it.

Ludo’.

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