GNU bug report logs - #58485
[shepherd] EADDRINUSE while restarting ssh-daemon

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From: Lars-Dominik Braun <ldb <at> leibniz-psychology.org>
To: 58485 <at> debbugs.gnu.org
Subject: bug#58485: [shepherd] Restarting guix-publish fails
Date: Tue, 7 Feb 2023 09:39:16 +0100

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Hi Ludo,

> Indeed.  This is fixed by Shepherd commit
> d97592f58603ff51cb280ae57d413c8731e601b3, which will be in the upcoming
> 0.9.3 release.
I’m on 0.9.3 and it works fine with `herd restart` now. But ssh-daemon
has the same issue when being restarted by unattended-upgrades (which
is fatal, because unable to use SSH I have to restart the entire box):

---snip---
shepherd: Service nginx has been stopped.
shepherd: Service nginx has been started.
shepherd: Service collectd has been stopped.
shepherd: Service collectd has been started.
shepherd: Service ntpd has been stopped.
shepherd: Service ntpd has been started.
shepherd: Service guix-publish has been stopped.
shepherd: Service guix-publish has been started.
shepherd: Service ssh-daemon has been stopped.
Backtrace:
           7 (primitive-load "/gnu/store/ip5m1n8kb6p0rfglzpkk17k060a?")
In ice-9/boot-9.scm:
    724:2  6 (call-with-prompt ("prompt") #<procedure 7f89a11f3840 ?> ?)
  1752:10  5 (with-exception-handler _ _ #:unwind? _ # _)
In ice-9/eval.scm:
    619:8  4 (_ #(#(#<directory (guile-user) 7f89a11ffc80>)))
In ice-9/boot-9.scm:
   260:13  3 (for-each #<procedure restart-service (name)> _)
In gnu/services/herd.scm:
    168:4  2 (invoke-action ssh-daemon restart () #<procedure 7f89a0?>)
    176:7  1 (failure)
In ice-9/boot-9.scm:
  1685:16  0 (raise-exception _ #:continuable? _)

ice-9/boot-9.scm:1685:16: In procedure raise-exception:
ERROR:
  1. &action-exception-error:
      service: ssh-daemon
      action: start
      key: system-error
      args: ("bind" "~A" ("Address already in use") (98)
---snap---

Maybe I can strace herd and see what happens exactly.

Thanks,
Lars

-- 
Lars-Dominik Braun
Wissenschaftlicher Mitarbeiter/Research Associate

www.leibniz-psychology.org
ZPID - Leibniz-Institut für Psychologie /
ZPID - Leibniz Institute for Psychology
Universitätsring 15
D-54296 Trier - Germany
Tel.: +49–651–201-4964

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