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Bug 689036 - Crash when changing luminosity
Crash when changing luminosity
Status: RESOLVED NOTGNOME
Product: gnome-settings-daemon
Classification: Core
Component: general
3.7.x
Other Linux
: High critical
: ---
Assigned To: gnome-settings-daemon-maint
gnome-settings-daemon-maint
Depends on:
Blocks:
 
 
Reported: 2012-11-25 18:03 UTC by Julien Olivier
Modified: 2012-11-30 09:01 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description Julien Olivier 2012-11-25 18:03:22 UTC 
When I press the "dim light" key, I get the following error message, and crash:

(gnome-settings-daemon:6256): GLib-GObject-WARNING **: invalid uninstantiatable type `(null)' in cast to `GsdMediaKeysManager'
Segmentation fault (core dumped)
Comment 1 Bastien Nocera 2012-11-25 21:09:54 UTC 
Thanks for taking the time to report this bug.
Without a stack trace from the crash it's very hard to determine what caused it.
Can you get us a stack trace? Please see http://live.gnome.org/GettingTraces for more information on how to do so. Thanks in advance!
Comment 2 Julien Olivier 2012-11-26 11:03:28 UTC 
Here is the trace:

+ Trace 231225

  • #0 ??
    from /usr/lib/gnome-settings-daemon-3.0/libmedia-keys.so
  • #1 ??
    from /usr/lib/gnome-settings-daemon-3.0/libmedia-keys.so
  • #2 g_simple_async_result_complete
    from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
  • #3 ??
    from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
  • #4 g_simple_async_result_complete
    from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
  • #5 ??
    from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
  • #6 g_simple_async_result_complete
    from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
  • #7 ??
    from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
  • #8 ??
    from /lib/i386-linux-gnu/libglib-2.0.so.0
  • #9 g_main_context_dispatch
    from /lib/i386-linux-gnu/libglib-2.0.so.0
  • #10 ??
    from /lib/i386-linux-gnu/libglib-2.0.so.0
  • #11 g_main_loop_run
    from /lib/i386-linux-gnu/libglib-2.0.so.0
  • #12 gtk_main
    from /usr/lib/i386-linux-gnu/libgtk-3.so.0
  • #13 main 






Comment 3


Bastien Nocera





          2012-11-26 11:14:04 UTC
        



The same one with debugging symbols, please?






Comment 4


Julien Olivier





          2012-11-26 11:38:35 UTC
        



(In reply to comment #3)
> The same one with debugging symbols, please?

Is it any better?





+
Trace
    231226






    

  • 
#0
dialog_init

    
                at gsd-media-keys-manager.c
                  line
                  472

    

    • 

  • 
#1
update_screen_cb

    
                at gsd-media-keys-manager.c
                  line
                  1846

    

    • 

  • 
#2
g_simple_async_result_complete

    
                from
                /usr/lib/i386-linux-gnu/libgio-2.0.so.0

    

    • 

  • 
#3
??

    
                from
                /usr/lib/i386-linux-gnu/libgio-2.0.so.0

    

    • 

  • 
#4
g_simple_async_result_complete

    
                from
                /usr/lib/i386-linux-gnu/libgio-2.0.so.0

    

    • 

  • 
#5
??

    
                from
                /usr/lib/i386-linux-gnu/libgio-2.0.so.0

    

    • 

  • 
#6
g_simple_async_result_complete

    
                from
                /usr/lib/i386-linux-gnu/libgio-2.0.so.0

    

    • 

  • 
#7
??

    
                from
                /usr/lib/i386-linux-gnu/libgio-2.0.so.0

    

    • 

  • 
#8
??

    
                from
                /lib/i386-linux-gnu/libglib-2.0.so.0

    

    • 

  • 
#9
g_main_context_dispatch

    
                from
                /lib/i386-linux-gnu/libglib-2.0.so.0

    

    • 

  • 
#10
??

    
                from
                /lib/i386-linux-gnu/libglib-2.0.so.0

    

    • 

  • 
#11
g_main_loop_run

    
                from
                /lib/i386-linux-gnu/libglib-2.0.so.0

    

    • 

  • 
#12
gtk_main

    
                from
                /usr/lib/i386-linux-gnu/libgtk-3.so.0

    

    • 

  • 
#13
main

    
                at main.c
                  line
                  544

    

    • 













Comment 5


Julien Olivier





          2012-11-29 18:35:00 UTC
        



It's been fixed in Ubuntu: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1082856






Comment 6


Bastien Nocera





          2012-11-29 22:28:43 UTC
        



Did you get this backtrace on an Ubuntu system?






Comment 7


Julien Olivier





          2012-11-30 08:28:39 UTC
        



(In reply to comment #6)
> Did you get this backtrace on an Ubuntu system?

Yes, on Ubuntu Quantal, but with GNOME packages from the "GNOME3 Team" PPA (https://launchpad.net/~gnome3-team/+archive/gnome3).






Comment 8


Julien Olivier





          2012-11-30 08:29:59 UTC
        



... I forgot to say that I had to rebuild the src package from the PPA to add debugging symbols.






Comment 9


Bastien Nocera





          2012-11-30 09:01:03 UTC
        



The code that crashed has been very heavily customised (500 line patch) by Ubuntu and bears no resemblance to the code in GNOME. In other words, it's a bug in Ubuntu's patch.