On Tue, 02. Jan 2007, Josselin Mouette wrote: > env `gdmXnest -b` GDM_THEME=industrial DOING_GDM_DEVELOPMENT=yes > GDM_PARENT_DISPLAY="$DISPLAY" GDM_IS_LOCAL=yes GDM_FLEXI_SERVER=yes > gdb /usr/lib/gdm/gdmgreeter > > A new window should appear, and at the gdb prompt in the initial window > you type "run", then "bt" at the segmentation fault time.
(gdmgreeter:4471): GdkPixbuf-CRITICAL **: gdk_pixbuf_get_rowstride:
assertion `pixbuf != NULL' failed
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1219750208 (LWP 4471)]
0x08055700 in ?? ()
(gdb) bt
#0 0x08055700 in ?? ()
#1 0x00000000 in ?? ()
> If the backtrace is full of question marks (which is likely to happen),
> it would also be nice to rebuild a debugging version of the gdm package,
> see http://wiki.debian.org/HowToGetABacktrace
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1219692864 (LWP 24129)]
greeter_item_create_canvas_item (item=0x81042b0) at greeter_canvas_item.c:73
73 line[0] = line[0] * r / 0xff;
(gdb) bt
#0 greeter_item_create_canvas_item (item=0x81042b0)
at greeter_canvas_item.c:73
#1 0x080570dc in greeter_item_size_allocate (item=0x81042b0,
allocation=0xbfc533e4, canvas=0x80fb030) at greeter_geometry.c:67
#2 0x08056de2 in greeter_item_size_allocate (item=0x81041c8,
allocation=0xbfc53454, canvas=0x80fb030) at greeter_geometry.c:353
#3 0x08056de2 in greeter_item_size_allocate (item=0x80fd580,
allocation=0xbfc534a4, canvas=0x80fb030) at greeter_geometry.c:353
#4 0x080571e0 in greeter_size_allocate_fixed (fixed=0x8106610,
items=<value optimized out>, canvas=0x80fb030) at greeter_geometry.c:171
#5 0x08050fc5 in main (argc=Cannot access memory at address 0x0) at
greeter.c:1356
(gdb)
I will keep the debug-package installed, in case you need any further
information.
Regards
Stephan
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