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Details

Type: Bug
Resolution: Cannot Reproduce
Priority: P2: Important
Fix Version/s: None
Affects Version/s: 4.7.1, 4.7.2, 4.8.0, 5.5.1, 5.7.0
Component/s: Widgets: GraphicsView
Labels:
None
Environment:
Gentoo linux (x86_64), glibc 2.12.2, KDE 4.5.5, xorg-server 1.7.7, gcc-4.5.2, Qt compiled from source with -O2 -mtune=generic

Arch linux (x86_64), Qt compiled from source with debug symbols

Description

I get a reproducible crash with amarok-2.4.0 on x86_64 linux with Qt 4.7.1 and 4.7.2. It happens randomly (once an hour or so) on track change when playing mp3 files. I tried to disable raster backend but got the same crash.

I use the following applets in amarok: Current Track, Labels, Albums, Similar Artists, Lyrics.

To me it looks like a regression from Qt 4.6.0 (~~QTBUG-5090~~).

Backtrace I made with: gdb --args amarok --debug --sync --nofork

(gdb) bt
#0 0x00007ffff65d56df in QGraphicsSceneFindItemBspTreeVisitor::visit(QList<QGraphicsItem*>*) () from
/usr/lib64/qt4/libQtGui.so.4
#1 0x00007ffff65d45f0 in QGraphicsSceneBspTree::climbTree(QGraphicsSceneBspTreeVisitor*, QRectF const&, int)
const () from /usr/lib64/qt4/libQtGui.so.4
#2 0x00007ffff65d45f0 in QGraphicsSceneBspTree::climbTree(QGraphicsSceneBspTreeVisitor*, QRectF const&, int)
const () from /usr/lib64/qt4/libQtGui.so.4
#3 0x00007ffff65d4550 in QGraphicsSceneBspTree::climbTree(QGraphicsSceneBspTreeVisitor*, QRectF const&, int)
const () from /usr/lib64/qt4/libQtGui.so.4
#4 0x00007ffff65d4cae in QGraphicsSceneBspTree::items(QRectF const&, bool) const () from
/usr/lib64/qt4/libQtGui.so.4
#5 0x00007ffff65d7b88 in QGraphicsSceneBspTreeIndexPrivate::estimateItems(QRectF const&, Qt::SortOrder, bool)
() from /usr/lib64/qt4/libQtGui.so.4
#6 0x00007ffff65d7d63 in QGraphicsSceneBspTreeIndex::estimateTopLevelItems(QRectF const&, Qt::SortOrder)
const () from /usr/lib64/qt4/libQtGui.so.4
#7 0x00007ffff65cb55b in QGraphicsScenePrivate::drawItems(QPainter*, QTransform const*, QRegion*, QWidget*)
() from /usr/lib64/qt4/libQtGui.so.4
#8 0x00007ffff65e86ac in QGraphicsView::paintEvent(QPaintEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#9 0x00007ffff60387fe in QWidget::event(QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#10 0x00007ffff63c52c6 in QFrame::event(QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#11 0x00007ffff65e994b in QGraphicsView::viewportEvent(QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#12 0x00007ffff5629c37 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from
/usr/lib64/qt4/libQtCore.so.4
#13 0x00007ffff5fe6e01 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from
/usr/lib64/qt4/libQtGui.so.4
#14 0x00007ffff5feba0a in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#15 0x00007ffff79ca876 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#16 0x00007ffff5629aac in QCoreApplication::notifyInternal(QObject*, QEvent*) () from
/usr/lib64/qt4/libQtCore.so.4
#17 0x00007ffff60356d8 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int,
QPainter*, QWidgetBackingStore*) ()
from /usr/lib64/qt4/libQtGui.so.4
#18 0x00007ffff603629f in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int,
QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/qt4/libQtGui.so.4
#19 0x00007ffff603541a in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int,
QPainter*, QWidgetBackingStore*) ()
from /usr/lib64/qt4/libQtGui.so.4
#20 0x00007ffff603629f in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int,
QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/qt4/libQtGui.so.4
#21 0x00007ffff603541a in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int,
QPainter*, QWidgetBackingStore*) ()
from /usr/lib64/qt4/libQtGui.so.4
#22 0x00007ffff603629f in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int,
QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/qt4/libQtGui.so.4
#23 0x00007ffff603541a in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int,
QPainter*, QWidgetBackingStore*) ()
from /usr/lib64/qt4/libQtGui.so.4
#24 0x00007ffff603629f in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int,
QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/qt4/libQtGui.so.4
#25 0x00007ffff603541a in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int,
QPainter*, QWidgetBackingStore*) ()
from /usr/lib64/qt4/libQtGui.so.4
#26 0x00007ffff61f8539 in QWidgetBackingStore::sync() () from /usr/lib64/qt4/libQtGui.so.4
#27 0x00007ffff602b8d0 in QWidgetPrivate::syncBackingStore() () from /usr/lib64/qt4/libQtGui.so.4
#28 0x00007ffff6038d02 in QWidget::event(QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#29 0x00007ffff63def7b in QMainWindow::event(QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#30 0x00007ffff5fe6e34 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from
/usr/lib64/qt4/libQtGui.so.4
#31 0x00007ffff5feba0a in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#32 0x00007ffff79ca876 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#33 0x00007ffff5629aac in QCoreApplication::notifyInternal(QObject*, QEvent*) () from
/usr/lib64/qt4/libQtCore.so.4
#34 0x00007ffff562d2a5 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from
/usr/lib64/qt4/libQtCore.so.4
#35 0x00007ffff65c1f9a in QGraphicsScenePrivate::_q_processDirtyItems() () from /usr/lib64/qt4/libQtGui.so.4
#36 0x00007ffff65c239a in QGraphicsScene::qt_metacall(QMetaObject::Call, int, void**) () from
/usr/lib64/qt4/libQtGui.so.4
#37 0x00007ffff17a3e25 in Plasma::Corona::qt_metacall(QMetaObject::Call, int, void**) () from
/usr/lib/libplasma.so.3
#38 0x00007ffff6c5d490 in Context::ContextScene::qt_metacall (this=0x1d396f0,
_c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x216fc70)
at /var/tmp/portage/media-sound/amarok-2.4.0/work/amarok-2.4.0_build/src/ContextScene.moc:70
#39 0x00007ffff563ddda in QObject::event(QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#40 0x00007ffff65ceed0 in QGraphicsScene::event(QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#41 0x00007ffff5fe6e34 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from
/usr/lib64/qt4/libQtGui.so.4
#42 0x00007ffff5feba0a in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#43 0x00007ffff79ca876 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#44 0x00007ffff5629aac in QCoreApplication::notifyInternal(QObject*, QEvent*) () from
/usr/lib64/qt4/libQtCore.so.4
#45 0x00007ffff562d2a5 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from
/usr/lib64/qt4/libQtCore.so.4
#46 0x00007ffff56549c3 in postEventSourceDispatch(_GSource*, int (void*), void*) () from
/usr/lib64/qt4/libQtCore.so.4
#47 0x00007fffee6b34d3 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#48 0x00007fffee6b3cb0 in ?? () from /usr/lib/libglib-2.0.so.0
#49 0x00007fffee6b3f4d in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#50 0x00007ffff5654b5f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/qt4/libQtCore.so.4
#51 0x00007ffff608c39e in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib64/qt4/libQtGui.so.4
#52 0x00007ffff5628e62 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/qt4/libQtCore.so.4
#53 0x00007ffff56290ac in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/qt4/libQtCore.so.4
#54 0x00007ffff562d55b in QCoreApplication::exec() () from /usr/lib64/qt4/libQtCore.so.4
#55 0x0000000000407064 in main (argc=4, argv=0x7fffffffd5b8) at
/var/tmp/portage/media-sound/amarok-2.4.0/work/amarok-2.4.0/src/main.cpp:268

See also the corresponding old amarok bug:
https://bugs.kde.org/show_bug.cgi?id=207382

and the recent duplicates:
https://bugs.kde.org/show_bug.cgi?id=266531
https://bugs.kde.org/show_bug.cgi?id=266854

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QTBUG-18021.zip
06 Dec '12 12:41
4 kB
Mitch Curtis
Screenshot_2020-08-24_12-22-55.png
24 Aug '20 10:26
144 kB
Matthieu Bruel
Screenshot_2020-08-24_12-28-28.png
24 Aug '20 10:30
144 kB
Matthieu Bruel

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is duplicated by

QTBUG-50691 Crash after delete QGraphicsItem in QGraphicsScene

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Crash in QGraphicsSceneFindItemBspTreeVisitor::visit(QList<QGraphicsItem>)

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