[Bug 286086] New: Kompare crashes sometimes when clicking on files

Konstantin Tokarev annulen at yandex.ru
Tue Nov 8 09:51:44 UTC 2011 

https://bugs.kde.org/show_bug.cgi?id=286086

           Summary: Kompare crashes sometimes when clicking on files
           Product: kompare
           Version: unspecified
          Platform: Compiled Sources
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: kompare-devel at kde.org
        ReportedBy: annulen at yandex.ru


Application: kompare (4.1.0)
KDE Platform Version: 4.4.5 (KDE 4.4.5) (Compiled from sources)
Qt Version: 4.6.3
Operating System: Linux 2.6.38.8-desktop-69mib x86_64
Distribution: "Mandriva Linux 2010.2"

-- Information about the crash:
After recent cahnges in SVN Kompare started to crash after some random cliks in
file list of patch.

The crash can be reproduced some of the time.

 -- Backtrace:
Application: Kompare (kompare), signal: Segmentation fault
[KCrash Handler]
#5  0x0000000b0000000a in ?? ()
#6  0x0000003a75b46df5 in ?? () from /usr/lib64/libQtGui.so.4
#7  0x0000003a75b7f2ef in QStyledItemDelegate::sizeHint(QStyleOptionViewItem
const&, QModelIndex const&) const () from /usr/lib64/libQtGui.so.4
#8  0x00007fb3d029a862 in KompareListViewItemDelegate::sizeHint
(this=0x19eb810, option=..., index=...) at
/home/kostya/projects/git/kompare/komparepart/komparelistview.cpp:534
#9  0x0000003a75ad5aee in QAbstractItemView::sizeHintForRow(int) const () from
/usr/lib64/libQtGui.so.4
#10 0x0000003a75b1309f in QTreeView::scrollContentsBy(int, int) () from
/usr/lib64/libQtGui.so.4
#11 0x0000003a75a33320 in QAbstractScrollArea::qt_metacall(QMetaObject::Call,
int, void**) () from /usr/lib64/libQtGui.so.4
#12 0x0000003a75ad20e5 in QAbstractItemView::qt_metacall(QMetaObject::Call,
int, void**) () from /usr/lib64/libQtGui.so.4
#13 0x0000003a75b1b725 in QTreeView::qt_metacall(QMetaObject::Call, int,
void**) () from /usr/lib64/libQtGui.so.4
#14 0x0000003a75b4fc85 in QTreeWidget::qt_metacall(QMetaObject::Call, int,
void**) () from /usr/lib64/libQtGui.so.4
#15 0x00007fb3d029dff5 in KompareListView::qt_metacall (this=0x7fff2f135df0,
_c=29535920, _id=0, _a=0xd) at
/home/kostya/projects/git/kompare/build/komparepart/komparelistview.moc:88
#16 0x0000003843f767b6 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) () from /usr/lib64/libQtCore.so.4
#17 0x0000003a75c46d3e in QAbstractSlider::valueChanged(int) () from
/usr/lib64/libQtGui.so.4
#18 0x0000003a75b0d37f in ?? () from /usr/lib64/libQtGui.so.4
#19 0x0000003a75b0e4f5 in ?? () from /usr/lib64/libQtGui.so.4
#20 0x0000003a75b0e770 in QTreeView::rowsAboutToBeRemoved(QModelIndex const&,
int, int) () from /usr/lib64/libQtGui.so.4
#21 0x0000003a75ad24af in QAbstractItemView::qt_metacall(QMetaObject::Call,
int, void**) () from /usr/lib64/libQtGui.so.4
#22 0x0000003a75b1b725 in QTreeView::qt_metacall(QMetaObject::Call, int,
void**) () from /usr/lib64/libQtGui.so.4
#23 0x0000003a75b4fc85 in QTreeWidget::qt_metacall(QMetaObject::Call, int,
void**) () from /usr/lib64/libQtGui.so.4
#24 0x00007fb3d029dff5 in KompareListView::qt_metacall (this=0x7fff2f135df0,
_c=29535920, _id=0, _a=0xd) at
/home/kostya/projects/git/kompare/build/komparepart/komparelistview.moc:88
#25 0x0000003843f767b6 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) () from /usr/lib64/libQtCore.so.4
#26 0x0000003843fc2814 in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex
const&, int, int) () from /usr/lib64/libQtCore.so.4
#27 0x0000003843f5aad3 in QAbstractItemModel::beginRemoveRows(QModelIndex
const&, int, int) () from /usr/lib64/libQtCore.so.4
#28 0x0000003a75b50daa in ?? () from /usr/lib64/libQtGui.so.4
#29 0x0000003a75b51529 in QTreeWidgetItem::~QTreeWidgetItem() () from
/usr/lib64/libQtGui.so.4
#30 0x00007fb3d0299a8b in ~KompareListViewItem (this=0x7fff2f135df0,
__in_chrg=<value optimized out>) at
/home/kostya/projects/git/kompare/komparepart/komparelistview.h:146
#31 KompareListViewLineItem::~KompareListViewLineItem (this=0x7fff2f135df0,
__in_chrg=<value optimized out>) at
/home/kostya/projects/git/kompare/komparepart/komparelistview.cpp:747
#32 0x00007fb3d029b01e in
qDeleteAll<QList<KompareListViewLineItem*>::const_iterator> (this=0x18aeb40,
__in_chrg=<value optimized out>) at
/usr/lib/qt4/include/QtCore/qalgorithms.h:322
#33 qDeleteAll<QList<KompareListViewLineItem*> > (this=0x18aeb40,
__in_chrg=<value optimized out>) at
/usr/lib/qt4/include/QtCore/qalgorithms.h:330
#34 KompareListViewLineContainerItem::~KompareListViewLineContainerItem
(this=0x18aeb40, __in_chrg=<value optimized out>) at
/home/kostya/projects/git/kompare/komparepart/komparelistview.cpp:706
#35 0x00007fb3d0299ad4 in KompareListViewDiffItem::~KompareListViewDiffItem
(this=0x18aeac0, __in_chrg=<value optimized out>) at
/home/kostya/projects/git/kompare/komparepart/komparelistview.cpp:646
#36 0x0000003a75b48a66 in ?? () from /usr/lib64/libQtGui.so.4
#37 0x00007fb3d029cb15 in KompareListView::slotSetSelection (this=0x1a05218,
model=<value optimized out>, diff=<value optimized out>)
    at /home/kostya/projects/git/kompare/komparepart/komparelistview.cpp:370
#38 0x00007fb3d0298932 in KompareSplitter::slotSetSelection (this=0x19fb160,
model=0x1bfe130, diff=0x1bfea40) at
/home/kostya/projects/git/kompare/komparepart/komparesplitter.cpp:430
#39 0x00007fb3d0298fbc in KompareSplitter::qt_metacall (this=0x19fb160,
_c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff2f136a90)
    at
/home/kostya/projects/git/kompare/build/komparepart/komparesplitter.moc:122
#40 0x0000003843f767b6 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) () from /usr/lib64/libQtCore.so.4
#41 0x00007fb3d2514a0b in Diff2::KompareModelList::setSelection
(this=0x7fff2f135df0, _t1=0x1bfe130, _t2=0x1bfea40) at
/home/kostya/projects/git/kompare/build/libdiff2/komparemodellist.moc:198
#42 0x00007fb3d2516d0e in Diff2::KompareModelList::slotSelectionChanged
(this=0x1ad1cb0, model=0x1bfe130, diff=0x1bfea40) at
/home/kostya/projects/git/kompare/libdiff2/komparemodellist.cpp:711
#43 0x00007fb3d251d7b0 in Diff2::KompareModelList::qt_metacall (this=0x1ad1cb0,
_c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff2f136d10)
    at
/home/kostya/projects/git/kompare/build/libdiff2/komparemodellist.moc:141
#44 0x0000003843f767b6 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) () from /usr/lib64/libQtCore.so.4
#45 0x00007fb3d02902bb in KomparePart::selectionChanged (this=0x7fff2f135df0,
_t1=0x1bfe130, _t2=0x1bfea40) at
/home/kostya/projects/git/kompare/build/komparepart/kompare_part.moc:196
#46 0x00007fb3d02965c9 in KomparePart::qt_metacall (this=0x19fa330,
_c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff2f136e70)
    at /home/kostya/projects/git/kompare/build/komparepart/kompare_part.moc:136
#47 0x0000003843f767b6 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) () from /usr/lib64/libQtCore.so.4
#48 0x00007fb3d01b7f58 in KompareNavTreePart::selectionChanged
(this=0x7fff2f135df0, _t1=0x1bfe130, _t2=0x1bfea40)
    at
/home/kostya/projects/git/kompare/build/komparenavtreepart/komparenavtreepart.moc:128
#49 0x00007fb3d01bdc22 in KompareNavTreePart::slotFileListSelectionChanged
(this=0x1b18a30, item=0x1c09160) at
/home/kostya/projects/git/kompare/komparenavtreepart/komparenavtreepart.cpp:404
#50 0x00007fb3d01be843 in KompareNavTreePart::qt_metacall (this=0x1b18a30,
_c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff2f137010)
    at
/home/kostya/projects/git/kompare/build/komparenavtreepart/komparenavtreepart.moc:111
#51 0x0000003843f767b6 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) () from /usr/lib64/libQtCore.so.4
#52 0x0000003a75b4720b in QTreeWidget::currentItemChanged(QTreeWidgetItem*,
QTreeWidgetItem*) () from /usr/lib64/libQtGui.so.4
#53 0x0000003a75b4fefd in QTreeWidget::qt_metacall(QMetaObject::Call, int,
void**) () from /usr/lib64/libQtGui.so.4
#54 0x0000003843f767b6 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) () from /usr/lib64/libQtCore.so.4
#55 0x0000003a75b237da in QItemSelectionModel::currentChanged(QModelIndex
const&, QModelIndex const&) () from /usr/lib64/libQtGui.so.4
#56 0x0000003a75b23922 in QItemSelectionModel::setCurrentIndex(QModelIndex
const&, QFlags<QItemSelectionModel::SelectionFlag>) () from
/usr/lib64/libQtGui.so.4
#57 0x0000003a75ad2b04 in QAbstractItemView::mousePressEvent(QMouseEvent*) ()
from /usr/lib64/libQtGui.so.4
#58 0x0000003a75601419 in QWidget::event(QEvent*) () from
/usr/lib64/libQtGui.so.4
#59 0x0000003a759a76b6 in QFrame::event(QEvent*) () from
/usr/lib64/libQtGui.so.4
#60 0x0000003a75ad7c3b in QAbstractItemView::viewportEvent(QEvent*) () from
/usr/lib64/libQtGui.so.4
#61 0x0000003a75b12a82 in QTreeView::viewportEvent(QEvent*) () from
/usr/lib64/libQtGui.so.4
#62 0x0000003843f62937 in
QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) ()
from /usr/lib64/libQtCore.so.4
#63 0x0000003a755ab09c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib64/libQtGui.so.4
#64 0x0000003a755b1e9b in QApplication::notify(QObject*, QEvent*) () from
/usr/lib64/libQtGui.so.4
#65 0x0000003a7701d366 in KApplication::notify(QObject*, QEvent*) () from
/usr/lib64/libkdeui.so.5
#66 0x0000003843f6351c in QCoreApplication::notifyInternal(QObject*, QEvent*)
() from /usr/lib64/libQtCore.so.4
#67 0x0000003a755b106e in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from
/usr/lib64/libQtGui.so.4
#68 0x0000003a75630d45 in ?? () from /usr/lib64/libQtGui.so.4
#69 0x0000003a7562fa5a in QApplication::x11ProcessEvent(_XEvent*) () from
/usr/lib64/libQtGui.so.4
#70 0x0000003a7565a372 in ?? () from /usr/lib64/libQtGui.so.4
#71 0x000000384643bd20 in g_main_context_dispatch () from
/usr/lib64/libglib-2.0.so.0
#72 0x000000384643fb88 in ?? () from /usr/lib64/libglib-2.0.so.0
#73 0x000000384643fd3c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#74 0x0000003843f8cb43 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib64/libQtCore.so.4
#75 0x0000003a75659f5e in ?? () from /usr/lib64/libQtGui.so.4
#76 0x0000003843f61e42 in
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/libQtCore.so.4
#77 0x0000003843f6221c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/libQtCore.so.4
#78 0x0000003843f66ebb in QCoreApplication::exec() () from
/usr/lib64/libQtCore.so.4
#79 0x00000000004088b5 in main (argc=<value optimized out>, argv=<value
optimized out>) at /home/kostya/projects/git/kompare/main.cpp:228

Reported using DrKonqi

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