Any idea where I can look to help me figure out what's causing the below error with playernav?  Thanks! 

On Nov 19, 2007 3:20 PM, Rachel F. Adler < rachelfadler@gmail.com> wrote:
Ok - I added the backtrace - Below are the results:

Thanks!
Rachel

(gdb) run localhost:6665
Starting program: /Users/rachelfadler/PlayerStage/Test/bin/playernav
localhost:6665
Reading symbols for shared libraries
..+++....................................................................++++.....+++++++++++..++++++++++++
done
calling connect
done
accepted client 0 on port 6665, fd 10
warn: model testWorld has no startup function registered (TODO: remove
this warning before release) (model.c stg_model_startup)
Stage: device "testWorld" received map info request
Stage: creating map for model "testWorld" of 160 by 160 cells at res 0.10
Stage computing map tile (0,0)(160,160)... done.
warning : skipping subscription to unknown device 44:0
playerc error   : got NACK from request
playerc error   : failed to get response
Warning: Failed to subscribe to planner on robot 0; you won't be able
to give it goals.
requesting map
Stage: device "testWorld" received map info request
Stage: creating map for model "testWorld" of 160 by 160 cells at res 0.10
Stage computing map tile (0,0)(160,160)... done.
done
Reading symbols for shared libraries . done

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_PROTECTION_FAILURE at address: 0x00000004
0x000d5700 in uta_union_clip ()
(gdb) bt
#0  0x000d5700 in uta_union_clip ()
#1  0x000da60c in gnome_canvas_request_redraw_uta ()
#2  0x000db013 in gnome_canvas_request_redraw ()
#3  0x000c5d52 in gnome_canvas_pixbuf_update ()
#4  0x000d4c20 in gnome_canvas_item_invoke_update ()
#5  0x000d69c1 in gnome_canvas_group_update ()
#6  0x000d4c20 in gnome_canvas_item_invoke_update ()
#7  0x000ddbe4 in do_update ()
#8  0x000ddf84 in idle_handler ()
#9  0x01355eb4 in g_main_context_dispatch ()
#10 0x013566c7 in g_main_context_iterate ()
#11 0x01356a4e in g_main_loop_run ()
#12 0x00447850 in gtk_main ()
#13 0x000027b9 in main (argc=2, argv=0xbffff3b4) at playernav.c:438
(gdb)


On Nov 19, 2007 1:06 PM, Brian Gerkey <brian@gerkey.org > wrote:
>
> On Nov 17, 2007, at 3:25 PM, Rachel F. Adler wrote:
>
> > I did gdb playernav - and below is the error message I get:
> >
> > (gdb) run localhost:6665
>
> > Program received signal EXC_BAD_ACCESS, Could not access memory.
> > Reason: KERN_PROTECTION_FAILURE at address: 0x00000004
> > 0x000d5700 in uta_union_clip ()
>
> I forgot to mention the last step: get a backtrace.  After the
> program crashes, you should see the (gdb) prompt again.  Do this:
>
> (gdb) bt
>
> Copy and paste all of the output into a mail and post it here.
>
>
>         brian.
>
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