[systemd-devel] Cannot start service due to 'systemd-tty-ask-password-agent --watch' not answering

[Lennart Poettering]

On Tue, 08.09.15 07:56, Yeela Kaplan (ykaplan at redhat.com) wrote:

> > > Thank you for your response.
> > > I have tried running:  strace -f systemctl --no-ask-password start
> > > supervdsmd.service
> > > and it still reproduces.
> > > but now intead of:
> > > bash(3448)─┬─pstree(3625)
> > >            └─strace(3618)───systemctl(3623)───systemd-tty-ask(3624)
> > > 
> > > I get:
> > > bash(3448)─┬─pstree(3586)
> > >            └─strace(3564)───systemctl(3569)
> > > 
> > > Do you know what systemctl is waiting for then?
> > 
> > Most likely that supervdsmd.service finishes start-up. Maybe there's a
> > bug in the unit file regarding notification when it finished start-up?
> > 
> > (You can also tell systemctl to just enqueue a start job, but not wait
> > for it to complete. Use --no-block for that).
> 
> This is the unit file:
> [Unit]
> Description="Auxiliary vdsm service for running helper functions as root"
> Requires=libvirtd.service
> 
> [Service]
> Type=simple
> LimitCORE=infinity
> EnvironmentFile=-/etc/sysconfig/supervdsmd
> ExecStart=/usr/share/vdsm/daemonAdapter "/usr/share/vdsm/supervdsmServer" --sockfile "/var/run/vdsm/svdsm.sock"
> Restart=always
> 
> 
> The service works fine on other machines... this is the first time we see it..
> and the service is able to start without systemd.. by just running: /usr/share/vdsm/daemonAdapter "/usr/share/vdsm/supervdsmServer" --sockfile "/var/run/vdsm/svdsm.sock" 
> but hangs for a long time without starting even when using --no-block..

Ah, you are saying that even with --no-block it will block? If so,
that indicates a D-Bus problem of some kind. Could you paste the
strace output of "systemctl --no-block --no-ask-password start ..."
somewhere please? What distro is this?

Lennart

-- 
Lennart Poettering, Red Hat