Reading symbols from /usr/bin/leafpad...(no debugging symbols found)...done.                            
(gdb) run                                                                                               
Starting program: /usr/bin/leafpad                                                                      
[Thread debugging using libthread_db enabled]                                                           
[New Thread 0x7fffef145700 (LWP 11602)]                                                                 
[New Thread 0x7fffee944700 (LWP 11603)]                                                                 
                                                                                                        
Program received signal SIGSEGV, Segmentation fault.                                                    
0x00007ffff7988d1c in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                           
(gdb) bt                                                                                                
#0  0x00007ffff7988d1c in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                       
#1  0x00007ffff6b8b81c in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0        
#2  0x00007ffff6b9c7e3 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0                      
#3  0x00007ffff6ba6258 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0    
#4  0x00007ffff6ba641f in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0           
#5  0x00007ffff79f37ca in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                       
#6  0x00007ffff79f3998 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                       
#7  0x00007ffff793492e in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                       
#8  0x00007ffff781d95b in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                       
#9  0x00007ffff791a7b9 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                       
#10 0x00007ffff791c6c4 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                       
#11 0x00007ffff79511c1 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                       
#12 0x00007ffff795129d in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                       
#13 0x00007ffff6baf610 in g_type_create_instance () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0  
#14 0x00007ffff6b8d76c in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0                      
#15 0x00007ffff6b90961 in g_object_newv () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0           
#16 0x00007ffff6b9163c in g_object_new () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0            
#17 0x00007fffefd0fb1a in Oxygen::RCStyle::createStyle(_GtkRcStyle*) ()                                 
   from /usr/lib/gtk-2.0/2.10.0/engines/liboxygen-gtk.so                                                
#18 0x00007ffff791bda9 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                       
#19 0x00007ffff792026a in gtk_rc_get_style () from /usr/lib/libgtk-x11-2.0.so.0                         
#20 0x00007ffff79f3928 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                       
#21 0x00007ffff798c05c in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                       
#22 0x00007ffff798c199 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                       
#23 0x00007ffff798c3d9 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                       
#24 0x00007ffff6b8b81c in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0        
#25 0x00007ffff6b9ce1f in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0                      
#26 0x00007ffff6ba6258 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0    
#27 0x00007ffff6ba641f in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0           
#28 0x00007ffff79ec8bc in gtk_widget_set_scroll_adjustments () from /usr/lib/libgtk-x11-2.0.so.0        
#29 0x00007ffff79341d5 in ?? () from /usr/lib/libgtk-x11-2.0.so.0                                       
#30 0x00007ffff6b8b81c in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0        
#31 0x00007ffff6b9c7e3 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0                      
#32 0x00007ffff6ba6258 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0    
#33 0x00007ffff6ba641f in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0           
#34 0x000000000040852a in ?? ()                                                                         
#35 0x0000000000407f3b in ?? ()                                                                         
#36 0x00007ffff62faeff in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6                     
#37 0x0000000000407749 in ?? ()                                                                         
#38 0x00007fffffffe298 in ?? ()                                                                         
#39 0x000000000000001c in ?? ()                                                                         
#40 0x0000000000000001 in ?? ()                                                                         
#41 0x00007fffffffe5e9 in ?? ()                                                                         
#42 0x0000000000000000 in ?? ()                                                                         
(gdb)