[systemd-devel] Mandriva messagebus problems at shutdown/reboot

[Eugeni Dodonov]

On Sat, Jan 15, 2011 at 10:00:42AM +0300, Andrey Borzenkov wrote:
> On Sat, Jan 15, 2011 at 12:15 AM, Michael Biebl <mbiebl at gmail.com> wrote:
> > 2011/1/14 Eugeni Dodonov <eugeni at mandriva.com>:
> >> I know that it is perhaps a simple newbie question, but is it something
> >> that must be changed in our messagebus init script (attached), or some
> >> systemd configuration which we could change to make it work?
> >
> > Why don't you use the native systemd services files that are shipped
> > with dbus 1.4.x?
> >
> 
> But it is just another method of starting D-Bus. It is still started
> as part of standard startup (i.e. Fedora installs
> /lib/systemd/system/multi-user.target.wants/dbus.service) and should
> be stopped when multi-user.target is stopped as well. There is no
> magic in handling SPECIAL_DBUS_SERVICE except attempting to reconnect
> to it when it is started.
> 
> So may be it changes timing so this problem becomes less obvious, but
> I do not see how it fixes it.
> 
> I myself never experienced problems on shutdown due to d-bus (which
> seems to hint  this is a timing issue). Eugeni, could you get debug
> output to console up to the moment shutdown hangs? I used
> systemd.log_target=kmsg, systemd.log_level=debug and set LOGLEVEL=8 in
> /etc/sysconfig/init so that everything is dumped on console.

I suspect that it was a timing problem indeed, and perhaps caused by
some weird interaction with some other daemon. I could not reproduce it
anymore today - everything is working as expected (14 seconds boot time
and 3 seconds reboot time - looks like magic to me :)). If I manage to
reproduce the problem again, I'll send the log.

Thanks!

-- 
Eugeni Dodonov