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    From"Cyrill V. Gorcunov" <>
    SubjectRe: qconf: reproducible segfault
    DateThu, 4 Jan 2007 12:42:31 +0300
    Hi,
    there is SIGSEGV happens in qconf.cc:995
    
    	str += print_filter(sym->name);
    
    but sym points to 0x1. To reproduce the error just do:
    
    1) make xconfig (with Options->Show Debug Info unchecked)
    2) go to Networking->Networking Options->Network packet filtering framework (Netfilter)->
       Network packet filtering framework (Netfilter) and the line "<| .." must be selected
       then just turn on Options->Show Debug info menu and you'll get:
    	make[1]: *** [xconfig] Segmentation fault
    	make: *** [xconfig] Error 2
    
    gdb shows:
    
    	Program received signal SIGSEGV, Segmentation fault.
    	0x08069834 in ConfigInfoView::symbolInfo (this=0x85ae750) at qconf.cc:995
    (gdb) bt
    	#0  0x08069834 in ConfigInfoView::symbolInfo (this=0x85ae750) at qconf.cc:995
    	#1  0x080696a9 in ConfigInfoView::setShowDebug (this=0x85ae750, b=true)
        at qconf.cc:946
    	#2  0x080648bf in ConfigInfoView::qt_invoke (this=0x85ae750, _id=161, 
        _o=0xbfc56ea0) at qconf.moc:544
    	#3  0xb7a5b1cc in QObject::activate_signal () from /usr/qt/3/lib/libqt-mt.so.3
    	#4  0xb7a5b800 in QObject::activate_signal_bool ()
       from /usr/qt/3/lib/libqt-mt.so.3
    	#5  0xb7dbd44b in QAction::toggled () from /usr/qt/3/lib/libqt-mt.so.3
    	#6  0xb7ba0876 in QAction::setOn () from /usr/qt/3/lib/libqt-mt.so.3
    	#7  0xb7ba0a94 in QAction::internalActivation ()
       from /usr/qt/3/lib/libqt-mt.so.3
    	#8  0xb7dbd544 in QAction::qt_invoke () from /usr/qt/3/lib/libqt-mt.so.3
    	#9  0xb7a5b1cc in QObject::activate_signal () from /usr/qt/3/lib/libqt-mt.so.3
    	#10 0xb7d9cc7a in QSignal::signal () from /usr/qt/3/lib/libqt-mt.so.3
    	#11 0xb7a753bd in QSignal::activate () from /usr/qt/3/lib/libqt-mt.so.3
    	#12 0xb7b62c09 in QPopupMenu::mouseReleaseEvent ()
       from /usr/qt/3/lib/libqt-mt.so.3
    	#13 0xb7a915b7 in QWidget::event () from /usr/qt/3/lib/libqt-mt.so.3
    	#14 0xb79fe9df in QApplication::internalNotify ()
       from /usr/qt/3/lib/libqt-mt.so.3
    	#15 0xb79fde44 in QApplication::notify () from /usr/qt/3/lib/libqt-mt.so.3
    	#16 0xb79937c1 in QETWidget::translateMouseEvent ()
       from /usr/qt/3/lib/libqt-mt.so.3
    	#17 0xb7991835 in QApplication::x11ProcessEvent ()
       from /usr/qt/3/lib/libqt-mt.so.3
    	#18 0xb79a8bb4 in QEventLoop::processEvents ()
       from /usr/qt/3/lib/libqt-mt.so.3
    	#19 0xb7a10d18 in QEventLoop::enterLoop () from /usr/qt/3/lib/libqt-mt.so.3
    	#20 0xb7a10bc8 in QEventLoop::exec () from /usr/qt/3/lib/libqt-mt.so.3
    	#21 0xb79fec31 in QApplication::exec () from /usr/qt/3/lib/libqt-mt.so.3
    	#22 0x08074453 in main (ac=2, av=0xbfc57ac4) at qconf.cc:1736
    (gdb) p sym
    	$20 = (symbol *) 0x1
    
    I'm investigating this...
    
    -- 
    	- Cyrill
    -
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