pnmixer error message: Gdk-CRITICAL **: IA__gdk_window_get_root_coords: assertion 'GDK_IS_WINDOW (window)' failed

[Ranjan Maitra]

On Sat, 18 Oct 2014 14:41:32 -0600 jd1008 <jd1008 at gmail.com> wrote:

> 
> On 10/17/2014 09:52 PM, Ranjan Maitra wrote:
> > On Sat, 18 Oct 2014 11:35:18 +0800 Ed Greshko <ed.greshko at greshko.com> wrote:
> >
> >>> Well, I'm using kdm and when I select openbox I don't actually have a "system tray".  But, I'm not an "openbox" user.  I've tried to reproduce your problem with xfce and lxde in a VM but was unable to reproduce the problem.
> >> OK......
> >>
> >> I used lxpanel to get a "system tray".  I get the same "warning" message that you do when I place the mouse over the pnmixer.  However, I don't get any crash.
> > Thanks! Let me explain: I get a crash when I log in for the first time. In this case, it is autostarted (at the system level). When I use this as a user from the commandline, it does not crash: however, upon wakeup from hibernate it does crash.
> >
> > I have this problem with my Dell Precision M3800 laptop.
> >
> > Funnily enough I do not have an issue with my Dell XPS 13 or Dell E6400 laptops or my Dell Precision T7400 workstation (which of course is never hibernated).
> >
> > The setup is the same for all machines (and in particular identical for all three laptops)!
> >
> > Many thanks again!
> >
> > Best wishes,
> > Ranjan
> >
> OK, so my understanding is that you start pnmixer, and it starts fine,
> then you hibernate, and then you reboot to resume from hibernation,
> and THAT is when the crash occurs.
> Is this basically correct?

Basically, correct, except that pnmixer itself crashes when started at login (upon a first boot). However, when started later on (from the commandline, but I am not sure that this has anything to do with it), it does not crash but gives that error message, which I do not know how to handle and works normally.

> 
> If so, how can we deduce that the system crash is being caused by pnmixer?

We can not. It is just that pnmixer crashes upon login and first boot and there was an error message in the dmesg (some days ago) so that made me wonder.

> 
> You  need to boot a kernel that enables the saving of the system crashdump
> and upload it to the redhat's  bugzilla.redhat.com so that the cause of 
> the system
> crash can be identified.

How do I get such a kernel?

Btw, I am also getting, occassionally the following in my dmesg:


[30472.635743] Browser[14212]: segfault at 0 ip 00007fc6a88f2445 sp 00007fffbecd1290 error 6 in libmozalloc.so[7fc6a88f1000+2000]

What exactly does this mean? Is this serious? I am at firefox-33.0-1.fc20.x86_64 but the phenomenon was also there before the firefox update.


Thanks again!

Best wishes,
Ranjan

> 
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