GNU bug report logs - #55707
syslogd logging kernel messages slowly?

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From: Luis Felipe <luis.felipe.la <at> protonmail.com>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: 55707 <at> debbugs.gnu.org, 55488 <at> debbugs.gnu.org
Subject: bug#55707: bug#55488: GDM, GNOME: Can't start desktop session after upgrade
Date: Sun, 05 Jun 2022 13:19:50 +0000

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Howdy,


On Friday, June 3rd, 2022 at 22:54, Ludovic Courtès <ludo <at> gnu.org> wrote:

> Here’s another debugging trick; would be great if you could try this:
> 

> --8<---------------cut here---------------start------------->8---
> 

> (define strace-syslogd
> (program-file "strace-syslogd"
> #~(apply execl #$(file-append strace "/bin/strace")
> "strace" ;argv[0]
> "-f" "-Tt" "-o" "/syslogd.log" "-s" "80"
> #$(file-append inetutils "/libexec/syslogd")
> (cdr (command-line)))))
> --8<---------------cut here---------------end--------------->8---
> 

> 

> and then:
> 

> --8<---------------cut here---------------start------------->8---
> 

> (modify-services %desktop-services
> (syslog-service-type
> _ => (syslog-configuration
> 

> (syslogd strace-syslogd))))
> --8<---------------cut here---------------end--------------->8---
> 

> 

> This creates a log file, /syslogd.log, which will allow us to see the
> time it takes syslogd to read from /proc/kmsg and hopefully to determine
> the origin of delays.

I see you already tried this on the other machine, but I gave this a try too just in case and sent the log to you privately. I'll try the other tricks next.

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