I did the same with this wiki : https://wiki.ubuntu.com/Backtrace here is the output:
GNU gdb 6.4.90-debian Copyright (C) 2006 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i486-linux-gnu"...Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1". (gdb) handle SIG33 pass nostop noprint Signal Stop Print Pass to program Description SIG33 No No Yes Real-time event 33 (gdb) set pagination 0 (gdb) run Starting program: /usr/bin/xfce4-appfinder Failed to read a valid object file image from memory. [Thread debugging using libthread_db enabled] [New Thread -1218337088 (LWP 12467)] Program received signal SIGABRT, Aborted. [Switching to Thread -1218337088 (LWP 12467)] 0xb7f70410 in ?? () (gdb) backtrace #0 0xb7f70410 in ?? () #1 0xbfdf5a3c in ?? () #2 0x00000006 in ?? () #3 0x000030b3 in ?? () #4 0xb777f811 in raise () from /lib/tls/i686/cmov/libc.so.6 #5 0xb7780fb9 in abort () from /lib/tls/i686/cmov/libc.so.6 #6 0xb77b4d3a in __fsetlocking () from /lib/tls/i686/cmov/libc.so.6 #7 0xb77bc5cf in mallopt () from /lib/tls/i686/cmov/libc.so.6 #8 0xb77bc672 in free () from /lib/tls/i686/cmov/libc.so.6 #9 0xb78bab31 in g_free () from /usr/lib/libglib-2.0.so.0 #10 0xb78a6ac1 in g_hash_table_lookup_extended () from /usr/lib/libglib-2.0.so.0 #11 0x0804bc5d in xfce_appfinder_init (appfinder=0x806fa00) at xfce4-appfinder.c:806 #12 0xb794be96 in g_type_create_instance () from /usr/lib/libgobject-2.0.so.0 #13 0xb7932bc2 in g_object_set () from /usr/lib/libgobject-2.0.so.0 #14 0xb7930e38 in g_object_newv () from /usr/lib/libgobject-2.0.so.0 #15 0xb79319b7 in g_object_new_valist () from /usr/lib/libgobject-2.0.so.0 #16 0xb7931b70 in g_object_new () from /usr/lib/libgobject-2.0.so.0 #17 0x0804b9d1 in xfce_appfinder_new () at xfce4-appfinder.c:268 #18 0x0804cf13 in main (argc=Cannot access memory at address 0x50 ) at main.c:453 (gdb) info registers eax 0x0 0 ecx 0x30b3 12467 edx 0x6 6 ebx 0x30b3 12467 esp 0xbfdf5a24 0xbfdf5a24 ebp 0xbfdf5a3c 0xbfdf5a3c esi 0xbfdf5adc -1075881252 edi 0xb7883ff4 -1215807500 eip 0xb7f70410 0xb7f70410 eflags 0x202 [ IF ] cs 0x73 115 ss 0x7b 123 ds 0x7b 123 es 0x7b 123 fs 0x0 0 gs 0x33 51 (gdb) thread apply all backtrace Thread 1 (Thread -1218337088 (LWP 12467)): #0 0xb7f70410 in ?? () #1 0xbfdf5a3c in ?? () #2 0x00000006 in ?? () #3 0x000030b3 in ?? () #4 0xb777f811 in raise () from /lib/tls/i686/cmov/libc.so.6 #5 0xb7780fb9 in abort () from /lib/tls/i686/cmov/libc.so.6 #6 0xb77b4d3a in __fsetlocking () from /lib/tls/i686/cmov/libc.so.6 #7 0xb77bc5cf in mallopt () from /lib/tls/i686/cmov/libc.so.6 #8 0xb77bc672 in free () from /lib/tls/i686/cmov/libc.so.6 #9 0xb78bab31 in g_free () from /usr/lib/libglib-2.0.so.0 #10 0xb78a6ac1 in g_hash_table_lookup_extended () from /usr/lib/libglib-2.0.so.0 #11 0x0804bc5d in xfce_appfinder_init (appfinder=0x806fa00) at xfce4-appfinder.c:806 #12 0xb794be96 in g_type_create_instance () from /usr/lib/libgobject-2.0.so.0 #13 0xb7932bc2 in g_object_set () from /usr/lib/libgobject-2.0.so.0 #14 0xb7930e38 in g_object_newv () from /usr/lib/libgobject-2.0.so.0 #15 0xb79319b7 in g_object_new_valist () from /usr/lib/libgobject-2.0.so.0 #16 0xb7931b70 in g_object_new () from /usr/lib/libgobject-2.0.so.0 #17 0x0804b9d1 in xfce_appfinder_new () at xfce4-appfinder.c:268 #18 0x0804cf13 in main (argc=Cannot access memory at address 0x50 ) at main.c:453 (gdb) quit The program is running. Exit anyway? (y or n) mark
