[Bug 221544] New: Kompare crashed on "Next File" action

[Clemens Eisserer]

https://bugs.kde.org/show_bug.cgi?id=221544

           Summary: Kompare crashed on "Next File" action
           Product: kompare
           Version: unspecified
          Platform: Fedora RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: kompare-devel at kde.org
        ReportedBy: linuxhippy at gmail.com


Version:            (using KDE 4.3.4)
OS:                Linux
Installed from:    Fedora RPMs

When comparing two directories, clicking on "Next File" caused Kompare to crash
with the following backtrace:

Application: Kompare (kompare), signal: Segmentation fault
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0xb77067a0 (LWP 26356))]

Thread 1 (Thread 0xb77067a0 (LWP 26356)):
[KCrash Handler]
#6  operator!= (value=<value optimized out>, this=<value optimized out>) at
/usr/include/QtCore/qbasicatomic.h:69
#7  detach (value=<value optimized out>, this=<value optimized out>) at
/usr/include/QtCore/qlinkedlist.h:93
#8  begin (value=<value optimized out>, this=<value optimized out>) at
/usr/include/QtCore/qlinkedlist.h:176
#9  KFileLVI::fillChangesList (value=<value optimized out>, this=<value
optimized out>) at
/usr/src/debug/kdesdk-4.3.4/kompare/komparenavtreepart/komparenavtreepart.cpp:599
#10 0x005cb936 in KompareNavTreePart::setSelectedFile (this=<value optimized
out>, model=<value optimized out>) at
/usr/src/debug/kdesdk-4.3.4/kompare/komparenavtreepart/komparenavtreepart.cpp:315
#11 0x005cbcda in KompareNavTreePart::slotSetSelection (this=<value optimized
out>, model=<value optimized out>, diff=<value optimized out>)
    at
/usr/src/debug/kdesdk-4.3.4/kompare/komparenavtreepart/komparenavtreepart.cpp:275
#12 0x005cbf60 in KompareNavTreePart::qt_metacall (this=<value optimized out>,
_c=<value optimized out>, _id=<value optimized out>, _a=<value optimized out>)
    at
/usr/src/debug/kdesdk-4.3.4/i686-redhat-linux-gnu/kompare/komparenavtreepart/komparenavtreepart.moc:99
#13 0x05a6bc0c in QMetaObject::activate (sender=<value optimized out>,
from_signal_index=<value optimized out>, to_signal_index=<value optimized out>,
argv=<value optimized out>)
    at kernel/qobject.cpp:3112
#14 0x05a6c843 in QMetaObject::activate (sender=<value optimized out>, m=<value
optimized out>, local_signal_index=<value optimized out>, argv=<value optimized
out>) at kernel/qobject.cpp:3186
#15 0x0059dc7a in KomparePart::setSelection (this=<value optimized out>,
_t1=0xbe6f1a0, _t2=0xbe6f480) at
/usr/src/debug/kdesdk-4.3.4/i686-redhat-linux-gnu/kompare/komparepart/kompare_part.moc:176
#16 0x005a5171 in KomparePart::qt_metacall (this=<value optimized out>,
_c=<value optimized out>, _id=1, _a=<value optimized out>)
    at
/usr/src/debug/kdesdk-4.3.4/i686-redhat-linux-gnu/kompare/komparepart/kompare_part.moc:128
#17 0x05a6bc0c in QMetaObject::activate (sender=<value optimized out>,
from_signal_index=<value optimized out>, to_signal_index=<value optimized out>,
argv=<value optimized out>)
    at kernel/qobject.cpp:3112
#18 0x05a6c843 in QMetaObject::activate (sender=<value optimized out>, m=<value
optimized out>, local_signal_index=<value optimized out>, argv=<value optimized
out>) at kernel/qobject.cpp:3186
#19 0x00788aea in Diff2::KompareModelList::setSelection (this=<value optimized
out>, _t1=0xbe6f1a0, _t2=0xbe6f480)
    at
/usr/src/debug/kdesdk-4.3.4/i686-redhat-linux-gnu/kompare/libdiff2/komparemodellist.moc:192
#20 0x00790a69 in Diff2::KompareModelList::slotNextModel (this=<value optimized
out>) at /usr/src/debug/kdesdk-4.3.4/kompare/libdiff2/komparemodellist.cpp:727
#21 0x00792b50 in Diff2::KompareModelList::qt_metacall (this=<value optimized
out>, _c=<value optimized out>, _id=<value optimized out>, _a=<value optimized
out>)
    at
/usr/src/debug/kdesdk-4.3.4/i686-redhat-linux-gnu/kompare/libdiff2/komparemodellist.moc:140
#22 0x05a6bc0c in QMetaObject::activate (sender=<value optimized out>,
from_signal_index=<value optimized out>, to_signal_index=<value optimized out>,
argv=<value optimized out>)
    at kernel/qobject.cpp:3112
#23 0x05a6c059 in QMetaObject::activate (sender=<value optimized out>, m=<value
optimized out>, from_local_signal_index=<value optimized out>,
to_local_signal_index=<value optimized out>, 
    argv=<value optimized out>) at kernel/qobject.cpp:3206
#24 0x031bd442 in QAction::triggered (this=<value optimized out>, _t1=false) at
.moc/release-shared/moc_qaction.cpp:236
#25 0x031bea06 in QAction::activate (this=<value optimized out>, event=<value
optimized out>) at kernel/qaction.cpp:1167
#26 0x0365dd73 in trigger (this=<value optimized out>) at
../../src/gui/kernel/qaction.h:203
#27 QToolButton::nextCheckState (this=<value optimized out>) at
widgets/qtoolbutton.cpp:1135
#28 0x03578714 in QAbstractButtonPrivate::click (this=<value optimized out>) at
widgets/qabstractbutton.cpp:525
#29 0x035789f1 in QAbstractButton::mouseReleaseEvent (this=<value optimized
out>, e=<value optimized out>) at widgets/qabstractbutton.cpp:1115
#30 0x0365e27d in QToolButton::mouseReleaseEvent (this=<value optimized out>,
e=<value optimized out>) at widgets/qtoolbutton.cpp:709
#31 0x03218d6f in QWidget::event (this=<value optimized out>, event=<value
optimized out>) at kernel/qwidget.cpp:7554
#32 0x035769af in QAbstractButton::event (this=<value optimized out>, e=<value
optimized out>) at widgets/qabstractbutton.cpp:1077
#33 0x03660c7b in QToolButton::event (this=<value optimized out>, event=<value
optimized out>) at widgets/qtoolbutton.cpp:1151
#34 0x031c3b24 in QApplicationPrivate::notify_helper (this=<value optimized
out>, receiver=<value optimized out>, e=<value optimized out>) at
kernel/qapplication.cpp:4065
#35 0x031cba90 in QApplication::notify (this=<value optimized out>,
receiver=<value optimized out>, e=<value optimized out>) at
kernel/qapplication.cpp:3767
#36 0x060d907b in KApplication::notify (this=<value optimized out>,
receiver=<value optimized out>, event=<value optimized out>) at
/usr/src/debug/kdelibs-4.3.4/kdeui/kernel/kapplication.cpp:302
#37 0x05a55d73 in QCoreApplication::notifyInternal (this=<value optimized out>,
receiver=<value optimized out>, event=<value optimized out>) at
kernel/qcoreapplication.cpp:610
#38 0x031cab97 in sendSpontaneousEvent (event=<value optimized out>,
receiver=<value optimized out>) at
../../src/corelib/kernel/qcoreapplication.h:216
#39 QApplicationPrivate::sendMouseEvent (event=<value optimized out>,
receiver=<value optimized out>) at kernel/qapplication.cpp:2924
#40 0x032394b8 in QETWidget::translateMouseEvent (this=<value optimized out>,
event=<value optimized out>) at kernel/qapplication_x11.cpp:4408
#41 0x0323891d in QApplication::x11ProcessEvent (this=<value optimized out>,
event=<value optimized out>) at kernel/qapplication_x11.cpp:3427
#42 0x03263c92 in x11EventSourceDispatch (s=<value optimized out>,
callback=<value optimized out>, user_data=<value optimized out>) at
kernel/qguieventdispatcher_glib.cpp:146
#43 0x00ac4128 in g_main_dispatch (context=<value optimized out>) at
gmain.c:1960
#44 IA__g_main_context_dispatch (context=<value optimized out>) at gmain.c:2513
#45 0x00ac7a58 in g_main_context_iterate (context=<value optimized out>,
block=<value optimized out>, dispatch=<value optimized out>, self=<value
optimized out>) at gmain.c:2591
#46 0x00ac7b84 in IA__g_main_context_iteration (context=0x96b8690,
may_block=<value optimized out>) at gmain.c:2654
#47 0x05a80b6d in QEventDispatcherGlib::processEvents (this=<value optimized
out>, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#48 0x03263356 in QGuiEventDispatcherGlib::processEvents (this=<value optimized
out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#49 0x05a542aa in QEventLoop::processEvents (this=<value optimized out>,
flags=<value optimized out>) at kernel/qeventloop.cpp:149
#50 0x05a5470a in QEventLoop::exec (this=<value optimized out>, flags=<value
optimized out>) at kernel/qeventloop.cpp:201
#51 0x05a56bf7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#52 0x031c39a8 in QApplication::exec () at kernel/qapplication.cpp:3525
#53 0x0804fe28 in main (argc=<value optimized out>, argv=<value optimized out>)
at /usr/src/debug/kdesdk-4.3.4/kompare/main.cpp:228

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