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bug#30522: Guile-SSH retries upon “guile --listen” failure to start

From: Ludovic Courtès
Subject: bug#30522: Guile-SSH retries upon “guile --listen” failure to start
Date: Wed, 21 Feb 2018 23:07:44 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux)

Hello Artyom & Marius,

Marius Bakke <address@hidden> skribis:

> Ludovic Courtès <address@hidden> writes:
>>> It would still be good with a better failure mode, but I'll file this
>>> under "pebkac" for now.
>> Yes, I’m surprised it ended up looping.  Did you try to strace it or
>> something to see what was going on?  Perhaps guile failed to start
>> altogether and Guile-SSH kept retrying?
> Indeed.  Guile-SSH kept trying to start `guile --listen` over and over.

Artyom, do you think we could arrange for Guile-SSH to properly detect
failure to start ‘guile --listen’ and report it instead of retrying?

Perhaps it could check the exit code of ‘guile --listen’ and distinguish
127 (“command not found”) from other exit codes?

(For more context, see <https://bugs.gnu.org/30522>.)


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