[systemd-devel] I/O error on "systemctl kill -s HUP rsyslog.service"

[Lennart Poettering]

On Di, 11.08.20 14:14, Harald Dunkel (harald.dunkel at aixigo.com) wrote:

> Hi folks,
>
> sending a HUP to rsyslog using the "systemd way" gives me an error:
>
> 	# systemctl kill -s HUP rsyslog.service
> 	Failed to kill unit rsyslog.service: Input/output error
>
> rsyslog receives the signal, but the exit value of systemctl indicates
> an error, affecting the logrotate service.
>
> This is a LXC container (lxc 4.0.2). Host and container are running
> Debian 10, esp. systemd 241-7~deb10u4. See https://bugs.debian.org/968049
>
>
> Every helpful hint is highly appreciated.

Can you run systemctl with SYSTEMD_LOG_LEVEL debug? Anything
interesting in the debug output it generates then? I wonder where the
I/O error comes from...

i.e. question is if the error is client side. If it's coming from the
server side, then the next thing to try would be to turn on debug
logging with "systemd-analyze log-level debug" and reproduce the
issue, then check if there's anything interesting in the logs.

Please provide the relevant log excerpts here then.

Lennart

--
Lennart Poettering, Berlin