(gdb) bt                                                                                                                                  
#0  XInternAtom (dpy=0x0, name=0xa04c748 "_NET_SYSTEM_TRAY_S0", onlyIfExists=0) at ../../src/IntAtom.c:177                                
#1  0xb76f65fc in QSystemTrayIconSys::locateSystemTray () at util/qsystemtrayicon_x11.cpp:72                                              
#2  0xb76f66bb in QSystemTrayIconPrivate::isSystemTrayAvailable_sys () at util/qsystemtrayicon_x11.cpp:379                                
#3  0xb76e1257 in QSystemTrayIcon::isSystemTrayAvailable () at util/qsystemtrayicon.cpp:350                                               
#4  0xb6c760cd in xcall_QSystemTrayIcon (xi=<value optimized out>, obj=0x0, args=0xa04c6a0) at /build/buildd/kdebindings-4.3.2/obj-i486-linux-gnu/smoke/qt/x_17.cpp:2162                                                                                                                      
#5  0xb69bfad7 in QtRuby::MethodCall::callMethod (this=0xbfb981c8) at /build/buildd/kdebindings-4.3.2/ruby/qtruby/src/marshall_types.h:148     
#6  0xb69bd8a8 in QtRuby::MethodCallBase::next (this=0xbfb981c8) at /build/buildd/kdebindings-4.3.2/ruby/qtruby/src/marshall_types.cpp:467     
#7  0xb6986c06 in class_method_missing (argc=1, argv=0xbfb98550, klass=3055883480) at /build/buildd/kdebindings-4.3.2/ruby/qtruby/src/Qt.cpp:959                                                                                                                                              
#8  0xb7ea7050 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#9  0xb7eb287e in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#10 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#11 0xb7eb33f3 in rb_funcall2 () from /usr/lib/libruby1.8.so.1.8                                                                               
#12 0xb7eb93c4 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#13 0xb7eb2b0f in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#14 0xb7ead021 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#15 0xb7ebe54e in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#16 0xb7ebe8e1 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#17 0xb7ea7050 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#18 0xb7eb287e in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#19 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#20 0xb7ead141 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#21 0xb7eb2781 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#22 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#23 0xb7ead021 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#24 0xb7eaf8ae in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#25 0xb7eb2781 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#26 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#27 0xb7ead021 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#28 0xb7eafea0 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#29 0xb7eb0dbc in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#30 0xb7ead402 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#31 0xb7eb009a in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#32 0xb7eb2781 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#33 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#34 0xb7ead141 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#35 0xb7eb04f1 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#36 0xb7eb0dbc in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#37 0xb7ead402 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#38 0xb7eafea0 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#39 0xb7eb0dbc in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#40 0xb7ebcb63 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#41 0xb7ea685b in rb_rescue2 () from /usr/lib/libruby1.8.so.1.8                                                                                
#42 0xb7ea69ac in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#43 0xb7ea7032 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#44 0xb7eb287e in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#45 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#46 0xb7ead141 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#47 0xb7eb04f1 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#48 0xb7eb0dbc in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#49 0xb7ebc654 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#50 0xb7ea701b in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#51 0xb7eb287e in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#52 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#53 0xb7ead141 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#54 0xb7eb04f1 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#55 0xb7eb2781 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#56 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#57 0xb7ead021 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#58 0xb7eb04f1 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#59 0xb7eb2781 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#60 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#61 0xb7ead021 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#62 0xb7eb0dbc in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#63 0xb7ebc654 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#64 0xb7ea701b in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#65 0xb7eb287e in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#66 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#67 0xb7ead141 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#68 0xb7eb04f1 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#69 0xb7eb2781 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#70 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#71 0xb7ead021 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#72 0xb7ebef67 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
#73 0xb7ebefb2 in ruby_exec () from /usr/lib/libruby1.8.so.1.8                                                                                 
#74 0xb7ebefef in ruby_run () from /usr/lib/libruby1.8.so.1.8                                                                                  
#75 0x0804870d in main ()                                                                                                                      
(gdb) bt full                                                                                                                                  
#0  XInternAtom (dpy=0x0, name=0xa04c748 "_NET_SYSTEM_TRAY_S0", onlyIfExists=0) at ../../src/IntAtom.c:177                                     
        atom = <value optimized out>                                                                                                           
        sig = <value optimized out>                                                                                                            
        idx = <value optimized out>                                                                                                            
        n = <value optimized out>                                                                                                              
        rep = {type = 5 '\005', pad1 = 2 '\002', sequenceNumber = 0, length = 3069485056, atom = 10098584, pad2 = 1, pad3 = 3057699180, pad4 = 3079581684, pad5 = 168085304, pad6 = 3216605200}                                                                                               
#1  0xb76f65fc in QSystemTrayIconSys::locateSystemTray () at util/qsystemtrayicon_x11.cpp:72                                                   
        screen = <value optimized out>                                                                                                         
        net_sys_tray = {d = 0xa04c6f0}                                                                                                         
        display = (Display *) 0x0                                                                                                              
#2  0xb76f66bb in QSystemTrayIconPrivate::isSystemTrayAvailable_sys () at util/qsystemtrayicon_x11.cpp:379                                     
No locals.                                                                                                                                     
#3  0xb76e1257 in QSystemTrayIcon::isSystemTrayAvailable () at util/qsystemtrayicon.cpp:350                                                    
No locals.                                                                                                                                     
#4  0xb6c760cd in xcall_QSystemTrayIcon (xi=<value optimized out>, obj=0x0, args=0xa04c6a0) at /build/buildd/kdebindings-4.3.2/obj-i486-linux-gnu/smoke/qt/x_17.cpp:2162                                                                                                                      
No locals.                                                                                                                                     
#5  0xb69bfad7 in QtRuby::MethodCall::callMethod (this=0xbfb981c8) at /build/buildd/kdebindings-4.3.2/ruby/qtruby/src/marshall_types.h:148     
        fn = (void (*)(short int, void *, Smoke::StackItem *)) 0xb6c75d00 <xcall_QSystemTrayIcon(short, void*, Smoke::StackItem*)>             
        ptr = (void *) 0x0                                                                                                                     
        r = {<QtRuby::MethodReturnValueBase> = {<Marshall> = {_vptr.Marshall = 0xb680dff4}, _smoke = 0x8, _method = -32312, _stack = 0xbfb98128, _st = {_t = 0xb67e0f47, _smoke = 0x8, _id = 1}, _retval = 0x0}, <No data fields>}                                                            
#6  0xb69bd8a8 in QtRuby::MethodCallBase::next (this=0xbfb981c8) at /build/buildd/kdebindings-4.3.2/ruby/qtruby/src/marshall_types.cpp:467     
        oldcur = -1                                                                                                                            
#7  0xb6986c06 in class_method_missing (argc=1, argv=0xbfb98550, klass=3055883480) at /build/buildd/kdebindings-4.3.2/ruby/qtruby/src/Qt.cpp:959                                                                                                                                              
        result = <value optimized out>                                                                                                         
        methodName = 0xa04c2f8 "isSystemTrayAvailable"                                                                                         
        c = {<QtRuby::MethodCallBase> = {<Marshall> = {_vptr.Marshall = 0xb69c3bc8}, _smoke = 0x9f65068, _method = 16393, _stack = 0xa04c6a0, _cur = 0, _args = 0xb6da0020, _called = true, _sp = 0x0}, _target = 4, _o = 0x0, _sp = 0xbfb981a0, _items = -1, _retval = 4}                    
        rx = (QRegExp *) 0x0                                                                                                                   
#8  0xb7ea7050 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#9  0xb7eb287e in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#10 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#11 0xb7eb33f3 in rb_funcall2 () from /usr/lib/libruby1.8.so.1.8                                                                               
No symbol table info available.                                                                                                                
#12 0xb7eb93c4 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#13 0xb7eb2b0f in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#14 0xb7ead021 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#15 0xb7ebe54e in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#16 0xb7ebe8e1 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#17 0xb7ea7050 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#18 0xb7eb287e in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#19 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#20 0xb7ead141 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#21 0xb7eb2781 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#22 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#23 0xb7ead021 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#24 0xb7eaf8ae in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#25 0xb7eb2781 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#26 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#27 0xb7ead021 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#28 0xb7eafea0 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#29 0xb7eb0dbc in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#30 0xb7ead402 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#31 0xb7eb009a in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#32 0xb7eb2781 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#33 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#34 0xb7ead141 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#35 0xb7eb04f1 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#36 0xb7eb0dbc in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#37 0xb7ead402 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#38 0xb7eafea0 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#39 0xb7eb0dbc in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#40 0xb7ebcb63 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#41 0xb7ea685b in rb_rescue2 () from /usr/lib/libruby1.8.so.1.8                                                                                
No symbol table info available.                                                                                                                
#42 0xb7ea69ac in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#43 0xb7ea7032 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#44 0xb7eb287e in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#45 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#46 0xb7ead141 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#47 0xb7eb04f1 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#48 0xb7eb0dbc in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#49 0xb7ebc654 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#50 0xb7ea701b in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#51 0xb7eb287e in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#52 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#53 0xb7ead141 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#54 0xb7eb04f1 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#55 0xb7eb2781 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#56 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#57 0xb7ead021 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#58 0xb7eb04f1 in ?? () from /usr/lib/libruby1.8.so.1.8                                                                                        
No symbol table info available.                                                                                                                
#59 0xb7eb2781 in ?? () from /usr/lib/libruby1.8.so.1.8
No symbol table info available.
#60 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8
No symbol table info available.
#61 0xb7ead021 in ?? () from /usr/lib/libruby1.8.so.1.8
No symbol table info available.
#62 0xb7eb0dbc in ?? () from /usr/lib/libruby1.8.so.1.8
No symbol table info available.
#63 0xb7ebc654 in ?? () from /usr/lib/libruby1.8.so.1.8
No symbol table info available.
#64 0xb7ea701b in ?? () from /usr/lib/libruby1.8.so.1.8
No symbol table info available.
#65 0xb7eb287e in ?? () from /usr/lib/libruby1.8.so.1.8
No symbol table info available.
#66 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8
No symbol table info available.
#67 0xb7ead141 in ?? () from /usr/lib/libruby1.8.so.1.8
No symbol table info available.
#68 0xb7eb04f1 in ?? () from /usr/lib/libruby1.8.so.1.8
No symbol table info available.
#69 0xb7eb2781 in ?? () from /usr/lib/libruby1.8.so.1.8
No symbol table info available.
#70 0xb7eb2a10 in ?? () from /usr/lib/libruby1.8.so.1.8
No symbol table info available.
#71 0xb7ead021 in ?? () from /usr/lib/libruby1.8.so.1.8
No symbol table info available.
#72 0xb7ebef67 in ?? () from /usr/lib/libruby1.8.so.1.8
No symbol table info available.
#73 0xb7ebefb2 in ruby_exec () from /usr/lib/libruby1.8.so.1.8
No symbol table info available.
#74 0xb7ebefef in ruby_run () from /usr/lib/libruby1.8.so.1.8
No symbol table info available.
#75 0x0804870d in main ()
No symbol table info available.