Re: NM 0.8.1 - DBus rejected messages

[Alex Buell <alex buell munted org uk>]

On Fri, 2010-08-20 at 13:17 -0500, Dan Williams wrote:
> On Fri, 2010-08-20 at 13:02 -0500, Dan Williams wrote:
> > On Wed, 2010-08-18 at 15:14 +0100, Alex Buell wrote:
> > > Every time I hang up on my mobile phone's GSM modem, I get the following in the logs:
> > > 
> > > Aug 18 15:12:09 lithium dbus-daemon: [system] Rejected send message, 1 matched rules; type="error", sender=":1.138" (uid=0 pid=32572 comm="/usr/sbin/NetworkManager) interface="(unset)" member="(unset)" error name="org.freedesktop.DBus.Error.UnknownMethod" requested_reply=0 destination=":1.170" (uid=0 pid=6063 comm="/usr/sbin/pppd))
> > > Aug 18 15:12:09 lithium dbus-daemon: [system] Rejected send message, 1 matched rules; type="error", sender=":1.138" (uid=0 pid=32572 comm="/usr/sbin/NetworkManager) interface="(unset)" member="(unset)" error name="org.freedesktop.DBus.Error.UnknownMethod" requested_reply=0 destination=":1.170" (uid=0 pid=6063 comm="/usr/sbin/pppd))
> > > Aug 18 15:12:09 lithium dbus-daemon: [system] Rejected send message, 1 matched rules; type="error", sender=":1.138" (uid=0 pid=32572 comm="/usr/sbin/NetworkManager) interface="(unset)" member="(unset)" error name="org.freedesktop.DBus.Error.UnknownMethod" requested_reply=0 destination=":1.170" (uid=0 pid=6063 comm="/usr/sbin/pppd))
> > > Aug 18 15:12:09 lithium dbus-daemon: [system] Rejected send message, 1 matched rules; type="error", sender=":1.138" (uid=0 pid=32572 comm="/usr/sbin/NetworkManager) interface="(unset)" member="(unset)" error name="org.freedesktop.DBus.Error.UnknownMethod" requested_reply=0 destination=":1.170" (uid=0 pid=6063 comm="/usr/sbin/pppd))
> > > 
> > > This is with NetworkManager 0.8.1. Any idea what's causing this? 
> > 
> > When doing a method call from which you do not expect a reply, you need
> > to tell D_Bus that you don't expect a reply, which we're not doing here.
> > D-Bus recently got more restrictive about this.  It's not a functional
> > issue, just an annoying warning one.  But dbus-glib should be handling
> > this automatically since January 2009.  What version of dbus-glib do you
> > have?
> 
> So the issue here is that the PPP plugin is probably calling a method on
> NM for "state" or "fail" or something after NM has already stopped
> caring about what the PPP plugin says.  dbus does not appear to respect
> the "dont' send me a reply" flag when it returns the UnknownMethod error
> in dbus_connection_dispatch().  So while this is a bug exercised by NM's
> ppp plugin, it's actually a bug in dbus itself.

Might be a good idea to file a bug report with the dbus maintainers?
-- 
Of all the things I've lost, it's my mind I miss the most - Ozzy
Osbourne.