Bug 336545

Application: muon (2.2.0)
KDE Platform Version: 4.13.2
Qt Version: 4.8.6
Operating System: Linux 3.13.0-29-generic x86_64
Distribution: Ubuntu 14.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:
i was searching for ogg in the searchbar

- Unusual behavior I noticed:
muon was crashing and the crashhandler opened

The crash can be reproduced sometimes.

-- Backtrace:
Application: Muon-Paketverwaltung (muon), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3010c9b7c0 (LWP 5252))]

Thread 2 (Thread 0x7f2ffa165700 (LWP 5256)):
#0  0x00007f3009d67569 in __GI___pthread_mutex_lock (mutex=0x7f2fec000a60) at ../nptl/pthread_mutex_lock.c:125
#1  0x00007f30098c7991 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3009885699 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3009885f03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f30098860ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f300e23f7be in QEventDispatcherGlib::processEvents (this=0x7f2fec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007f300e2110af in QEventLoop::processEvents (this=this@entry=0x7f2ffa164de0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f300e2113a5 in QEventLoop::exec (this=this@entry=0x7f2ffa164de0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f300e10dc5f in QThread::exec (this=this@entry=0x2663910) at thread/qthread.cpp:537
#9  0x00007f300e1f2823 in QInotifyFileSystemWatcherEngine::run (this=0x2663910) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f300e11032f in QThreadPrivate::start (arg=0x2663910) at thread/qthread_unix.cpp:349
#11 0x00007f3009d65182 in start_thread (arg=0x7f2ffa165700) at pthread_create.c:312
#12 0x00007f300dac630d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f3010c9b7c0 (LWP 5252)):
[KCrash Handler]
#6  QApt::Cache::depCache (this=0xffb097e8fb894853) at /build/buildd/libqapt-2.1.70/src/cache.cpp:76
#7  0x00007f300ff77478 in QApt::Package::shortDescription (this=this@entry=0x315b7d0) at /build/buildd/libqapt-2.1.70/src/package.cpp:264
#8  0x00000000004275fd in PackageModel::data (this=<optimized out>, index=..., role=<optimized out>) at /build/buildd/muon-2.2.0/muon/PackageModel/PackageModel.cpp:60
#9  0x00007f300f1799dd in QSortFilterProxyModel::data (this=<optimized out>, index=..., role=34) at itemviews/qsortfilterproxymodel.cpp:1735
#10 0x0000000000428792 in data (arole=34, this=0x7fff8aa38a80) at /usr/include/qt4/QtCore/qabstractitemmodel.h:402
#11 PackageDelegate::sizeHint (this=0x3236810, option=..., index=...) at /build/buildd/muon-2.2.0/muon/PackageModel/PackageDelegate.cpp:256
#12 0x00007f300f137aae in QTreeView::indexRowSizeHint (this=this@entry=0x3257e70, index=...) at itemviews/qtreeview.cpp:2813
#13 0x00007f300f143d6d in QTreeView::dataChanged (this=0x3257e70, topLeft=..., bottomRight=...) at itemviews/qtreeview.cpp:681
#14 0x00007f300e22687a in QMetaObject::activate (sender=sender@entry=0x31c0e30, m=m@entry=0x7f300e5766a0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff8aa38d00) at kernel/qobject.cpp:3539
#15 0x00007f300e270527 in QAbstractItemModel::dataChanged (this=this@entry=0x31c0e30, _t1=..., _t2=...) at .moc/release-shared/moc_qabstractitemmodel.cpp:163
#16 0x00007f300f1806d1 in QSortFilterProxyModelPrivate::_q_sourceDataChanged (this=0x3239b20, source_top_left=..., source_bottom_right=...) at itemviews/qsortfilterproxymodel.cpp:1210
#17 0x00007f300e22687a in QMetaObject::activate (sender=sender@entry=0x212bb00, m=m@entry=0x7f300e5766a0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff8aa38f80) at kernel/qobject.cpp:3539
#18 0x00007f300e270527 in QAbstractItemModel::dataChanged (this=this@entry=0x212bb00, _t1=..., _t2=...) at .moc/release-shared/moc_qabstractitemmodel.cpp:163
#19 0x000000000042790b in PackageModel::externalDataChanged (this=0x212bb00) at /build/buildd/muon-2.2.0/muon/PackageModel/PackageModel.cpp:107
#20 0x00007f300e22687a in QMetaObject::activate (sender=0x23b1a00, m=m@entry=0x7f30101b1c60 <QApt::Backend::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#21 0x00007f300ff9bbb0 in QApt::Backend::packageChanged (this=<optimized out>) at /build/buildd/libqapt-2.1.70/obj-x86_64-linux-gnu/src/moc_backend.cpp:206
#22 0x00007f300ff6b273 in QApt::Backend::setCompressEvents (this=<optimized out>, enabled=enabled@entry=false) at /build/buildd/libqapt-2.1.70/src/backend.cpp:1006
#23 0x000000000042c844 in PackageWidget::actOnPackages (this=0x20a35b0, action=action@entry=QApt::Package::ToInstall) at /build/buildd/muon-2.2.0/muon/PackageModel/PackageWidget.cpp:468
#24 0x000000000042c91a in PackageWidget::setPackagesInstall (this=<optimized out>) at /build/buildd/muon-2.2.0/muon/PackageModel/PackageWidget.cpp:489
#25 0x000000000041a8d5 in PackageWidget::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at /build/buildd/muon-2.2.0/obj-x86_64-linux-gnu/muon/moc_PackageWidget.cpp:113
#26 0x00007f300e22687a in QMetaObject::activate (sender=sender@entry=0x2163d40, m=m@entry=0x7f300f6aede0 <QAction::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fff8aa392f0) at kernel/qobject.cpp:3539
#27 0x00007f300ebfea62 in QAction::triggered (this=this@entry=0x2163d40, _t1=false) at .moc/release-shared/moc_qaction.cpp:276
#28 0x00007f300ec00433 in QAction::activate (this=this@entry=0x2163d40, event=event@entry=QAction::Trigger) at kernel/qaction.cpp:1257
#29 0x00007f300f02e489 in QMenuPrivate::activateCausedStack (this=this@entry=0x38fa740, causedStack=..., action=action@entry=0x2163d40, action_e=action_e@entry=QAction::Trigger, self=self@entry=true) at widgets/qmenu.cpp:1038
#30 0x00007f300f0329b9 in QMenuPrivate::activateAction (this=0x38fa740, action=0x2163d40, action_e=action_e@entry=QAction::Trigger, self=self@entry=true) at widgets/qmenu.cpp:1130
#31 0x00007f300f036385 in QMenu::mouseReleaseEvent (this=this@entry=0x7fff8aa3a1c0, e=e@entry=0x7fff8aa39a20) at widgets/qmenu.cpp:2372
#32 0x00007f300f9c6665 in KMenu::mouseReleaseEvent (this=0x7fff8aa3a1c0, e=0x7fff8aa39a20) at ../../kdeui/widgets/kmenu.cpp:464
#33 0x00007f300ec5450a in QWidget::event (this=this@entry=0x7fff8aa3a1c0, event=event@entry=0x7fff8aa39a20) at kernel/qwidget.cpp:8376
#34 0x00007f300f0367bb in QMenu::event (this=0x7fff8aa3a1c0, e=0x7fff8aa39a20) at widgets/qmenu.cpp:2481
#35 0x00007f300ec04e2c in QApplicationPrivate::notify_helper (this=this@entry=0x1eed7a0, receiver=receiver@entry=0x7fff8aa3a1c0, e=e@entry=0x7fff8aa39a20) at kernel/qapplication.cpp:4567
#36 0x00007f300ec0b5dd in QApplication::notify (this=this@entry=0x7fff8aa3b210, receiver=receiver@entry=0x7fff8aa3a1c0, e=e@entry=0x7fff8aa39a20) at kernel/qapplication.cpp:4110
#37 0x00007f300f90fd1a in KApplication::notify (this=0x7fff8aa3b210, receiver=0x7fff8aa3a1c0, event=0x7fff8aa39a20) at ../../kdeui/kernel/kapplication.cpp:311
#38 0x00007f300e2124dd in QCoreApplication::notifyInternal (this=0x7fff8aa3b210, receiver=receiver@entry=0x7fff8aa3a1c0, event=event@entry=0x7fff8aa39a20) at kernel/qcoreapplication.cpp:953
#39 0x00007f300ec0ad93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#40 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x7fff8aa3a1c0, event=event@entry=0x7fff8aa39a20, alienWidget=alienWidget@entry=0x0, nativeWidget=nativeWidget@entry=0x7fff8aa3a1c0, buttonDown=buttonDown@entry=0x7f300f6ea318 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#41 0x00007f300ec7fcfc in QETWidget::translateMouseEvent (this=this@entry=0x7fff8aa3a1c0, event=event@entry=0x7fff8aa39d70) at kernel/qapplication_x11.cpp:4568
#42 0x00007f300ec7f269 in QApplication::x11ProcessEvent (this=0x7fff8aa3b210, event=event@entry=0x7fff8aa39d70) at kernel/qapplication_x11.cpp:3627
#43 0x00007f300eca6b02 in x11EventSourceDispatch (s=0x1eef1a0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#44 0x00007f3009885e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f3009886048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f30098860ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f300e23f7be in QEventDispatcherGlib::processEvents (this=0x1eaf270, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#48 0x00007f300eca6bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#49 0x00007f300e2110af in QEventLoop::processEvents (this=this@entry=0x7fff8aa3a150, flags=...) at kernel/qeventloop.cpp:149
#50 0x00007f300e2113a5 in QEventLoop::exec (this=this@entry=0x7fff8aa3a150, flags=...) at kernel/qeventloop.cpp:204
#51 0x00007f300f035587 in QMenu::exec (this=this@entry=0x7fff8aa3a1c0, p=..., action=action@entry=0x0) at widgets/qmenu.cpp:2125
#52 0x000000000042cc23 in PackageWidget::contextMenuRequested (this=0x20a35b0, pos=...) at /build/buildd/muon-2.2.0/muon/PackageModel/PackageWidget.cpp:359
#53 0x000000000041a989 in PackageWidget::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at /build/buildd/muon-2.2.0/obj-x86_64-linux-gnu/muon/moc_PackageWidget.cpp:104
#54 0x00007f300e22687a in QMetaObject::activate (sender=sender@entry=0x2116d10, m=m@entry=0x7f300f6b10a0 <QWidget::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff8aa3a360) at kernel/qobject.cpp:3539
#55 0x00007f300ec46a62 in QWidget::customContextMenuRequested (this=this@entry=0x2116d10, _t1=...) at .moc/release-shared/moc_qwidget.cpp:373
#56 0x00007f300ec548e7 in QWidget::event (this=this@entry=0x2116d10, event=event@entry=0x7fff8aa3a9f0) at kernel/qwidget.cpp:8557
#57 0x00007f300eff5fce in QFrame::event (this=0x2116d10, e=0x7fff8aa3a9f0) at widgets/qframe.cpp:557
#58 0x00007f300f1055b3 in QAbstractItemView::viewportEvent (this=this@entry=0x2116d10, event=event@entry=0x7fff8aa3a9f0) at itemviews/qabstractitemview.cpp:1644
#59 0x00007f300f144190 in QTreeView::viewportEvent (this=0x2116d10, event=0x7fff8aa3a9f0) at itemviews/qtreeview.cpp:1252
#60 0x00007f300e212646 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x1eed7a0, receiver=receiver@entry=0x20bbda0, event=event@entry=0x7fff8aa3a9f0) at kernel/qcoreapplication.cpp:1063
#61 0x00007f300ec04e0c in QApplicationPrivate::notify_helper (this=this@entry=0x1eed7a0, receiver=receiver@entry=0x20bbda0, e=e@entry=0x7fff8aa3a9f0) at kernel/qapplication.cpp:4563
#62 0x00007f300ec0c1f8 in QApplication::notify (this=this@entry=0x7fff8aa3b210, receiver=receiver@entry=0x20bbda0, e=e@entry=0x7fff8aa3a9f0) at kernel/qapplication.cpp:4189
#63 0x00007f300f90fd1a in KApplication::notify (this=0x7fff8aa3b210, receiver=0x20bbda0, event=0x7fff8aa3a9f0) at ../../kdeui/kernel/kapplication.cpp:311
#64 0x00007f300e2124dd in QCoreApplication::notifyInternal (this=0x7fff8aa3b210, receiver=receiver@entry=0x20bbda0, event=event@entry=0x7fff8aa3a9f0) at kernel/qcoreapplication.cpp:953
#65 0x00007f300ec7fa20 in sendSpontaneousEvent (event=0x7fff8aa3a9f0, receiver=0x20bbda0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#66 QETWidget::translateMouseEvent (this=this@entry=0x2122c40, event=event@entry=0x7fff8aa3ad40) at kernel/qapplication_x11.cpp:4639
#67 0x00007f300ec7f269 in QApplication::x11ProcessEvent (this=0x7fff8aa3b210, event=event@entry=0x7fff8aa3ad40) at kernel/qapplication_x11.cpp:3627
#68 0x00007f300eca6b02 in x11EventSourceDispatch (s=0x1eef1a0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#69 0x00007f3009885e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#70 0x00007f3009886048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#71 0x00007f30098860ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#72 0x00007f300e23f7be in QEventDispatcherGlib::processEvents (this=0x1eaf270, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#73 0x00007f300eca6bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#74 0x00007f300e2110af in QEventLoop::processEvents (this=this@entry=0x7fff8aa3b110, flags=...) at kernel/qeventloop.cpp:149
#75 0x00007f300e2113a5 in QEventLoop::exec (this=this@entry=0x7fff8aa3b110, flags=...) at kernel/qeventloop.cpp:204
#76 0x00007f300e216b79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#77 0x00007f300ec0337c in QApplication::exec () at kernel/qapplication.cpp:3828
#78 0x000000000041a05b in main (argc=1, argv=0x7fff8aa3b348) at /build/buildd/muon-2.2.0/muon/main.cpp:54

The reporter indicates this bug may be a duplicate of or related to bug 314916.

Possible duplicates by query: bug 326584, bug 322898.

Reported using DrKonqi