Application: muon (5.4.2)

Qt Version: 5.4.2
Operating System: Linux 4.2.0-16-generic x86_64
Distribution: Ubuntu 15.10

-- Information about the crash:
- What I was doing when the application crashed:

I was trying to install a wallpaper package. Nothing unusual was happening.

The crash does not seem to be reproducible.

-- Backtrace:
Application: Muon Package Manager (muon), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd2c5752840 (LWP 9683))]

Thread 3 (Thread 0x7fd2c34d1700 (LWP 9684)):
#0  0x00007fd2d3b968dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fd2ccdd2bd2 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fd2ccdd474f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fd2c53f8a39 in QXcbEventReader::run (this=0x126bca0) at qxcbconnection.cpp:1105
#4  0x00007fd2d42892be in QThreadPrivate::start (arg=0x126bca0) at thread/qthread_unix.cpp:337
#5  0x00007fd2cf5826aa in start_thread (arg=0x7fd2c34d1700) at pthread_create.c:333
#6  0x00007fd2d3ba1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fd2ba2ba700 (LWP 9688)):
#0  0x00007fd2cf06171b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fd2cf06211b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd2cf0622fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd2d44c029b in QEventDispatcherGlib::processEvents (this=0x7fd2ac0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fd2d446675a in QEventLoop::exec (this=this@entry=0x7fd2ba2b9d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fd2d42843d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fd2d42892be in QThreadPrivate::start (arg=0x156a1b0) at thread/qthread_unix.cpp:337
#7  0x00007fd2cf5826aa in start_thread (arg=0x7fd2ba2ba700) at pthread_create.c:333
#8  0x00007fd2d3ba1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fd2c5752840 (LWP 9683)):
[KCrash Handler]
#6  0x00007fd2d6babed4 in QApt::Backend::cache() const () from /usr/lib/x86_64-linux-gnu/libQApt.so.3
#7  0x00007fd2d6bbb37a in QApt::Package::state() const () from /usr/lib/x86_64-linux-gnu/libQApt.so.3
#8  0x0000000000435697 in PackageProxyModel::filterAcceptsRow(int, QModelIndex const&) const ()
#9  0x00007fd2d44385be in QSortFilterProxyModelPrivate::_q_sourceDataChanged (this=0x261f8c0, source_top_left=..., source_bottom_right=...) at itemmodels/qsortfilterproxymodel.cpp:1167
#10 0x00007fd2d449978a in QMetaObject::activate (sender=0x22c8fd0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff91ac2e00) at kernel/qobject.cpp:3717
#11 0x00007fd2d4499f87 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7fd2d469be40 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff91ac2e00) at kernel/qobject.cpp:3582
#12 0x00007fd2d451064c in QAbstractItemModel::dataChanged (this=<optimized out>, _t1=..., _t2=..., _t3=...) at .moc/moc_qabstractitemmodel.cpp:393
#13 0x0000000000435187 in PackageModel::externalDataChanged() ()
#14 0x00007fd2d449978a in QMetaObject::activate (sender=0x1566290, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3717
#15 0x00007fd2d6bbc925 in QApt::Package::setInstall() () from /usr/lib/x86_64-linux-gnu/libQApt.so.3
#16 0x000000000043be78 in PackageWidget::setInstall(QApt::Package*) ()
#17 0x00007fd2d449978a in QMetaObject::activate (sender=0x1351a50, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3717
#18 0x000000000044369f in DetailsWidget::setInstall(QApt::Package*) ()
#19 0x00007fd2d449978a in QMetaObject::activate (sender=0x1396f20, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3717
#20 0x000000000044326f in MainTab::setInstall(QApt::Package*) ()
#21 0x00007fd2d449978a in QMetaObject::activate (sender=sender@entry=0x1398660, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7fff91ac3400) at kernel/qobject.cpp:3717
#22 0x00007fd2d4499f87 in QMetaObject::activate (sender=sender@entry=0x1398660, m=m@entry=0x7fd2d524d620 <QAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7fff91ac3400) at kernel/qobject.cpp:3582
#23 0x00007fd2d50c7fe2 in QAbstractButton::clicked (this=this@entry=0x1398660, _t1=false) at .moc/moc_qabstractbutton.cpp:298
#24 0x00007fd2d4e2e914 in QAbstractButtonPrivate::emitClicked (this=0x139a580) at widgets/qabstractbutton.cpp:534
#25 0x00007fd2d4e2fdf9 in QAbstractButtonPrivate::click (this=0x139a580) at widgets/qabstractbutton.cpp:527
#26 0x00007fd2d4e2ff74 in QAbstractButton::mouseReleaseEvent (this=0x1398660, e=0x7fff91ac38d0) at widgets/qabstractbutton.cpp:1132
#27 0x00007fd2d4d79188 in QWidget::event (this=0x1398660, event=0x7fff91ac38d0) at kernel/qwidget.cpp:9023
#28 0x00007fd2d4d36b8c in QApplicationPrivate::notify_helper (this=this@entry=0x1255130, receiver=receiver@entry=0x1398660, e=e@entry=0x7fff91ac38d0) at kernel/qapplication.cpp:3720
#29 0x00007fd2d4d3cc7a in QApplication::notify (this=<optimized out>, receiver=0x1398660, e=0x7fff91ac38d0) at kernel/qapplication.cpp:3280
#30 0x00007fd2d4468f1b in QCoreApplication::notifyInternal (this=0x7fff91ac4160, receiver=receiver@entry=0x1398660, event=event@entry=0x7fff91ac38d0) at kernel/qcoreapplication.cpp:935
#31 0x00007fd2d4d3b6f2 in QCoreApplication::sendSpontaneousEvent (event=0x7fff91ac38d0, receiver=0x1398660) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#32 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x1398660, event=event@entry=0x7fff91ac38d0, alienWidget=alienWidget@entry=0x1398660, nativeWidget=0x1330350, buttonDown=buttonDown@entry=0x7fd2d525ca10 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2751
#33 0x00007fd2d4d90440 in QWidgetWindow::handleMouseEvent (this=this@entry=0x15d9180, event=event@entry=0x7fff91ac3cf0) at kernel/qwidgetwindow.cpp:543
#34 0x00007fd2d4d9278b in QWidgetWindow::event (this=0x15d9180, event=0x7fff91ac3cf0) at kernel/qwidgetwindow.cpp:210
#35 0x00007fd2d4d36b8c in QApplicationPrivate::notify_helper (this=this@entry=0x1255130, receiver=receiver@entry=0x15d9180, e=e@entry=0x7fff91ac3cf0) at kernel/qapplication.cpp:3720
#36 0x00007fd2d4d3c230 in QApplication::notify (this=0x7fff91ac4160, receiver=0x15d9180, e=0x7fff91ac3cf0) at kernel/qapplication.cpp:3503
#37 0x00007fd2d4468f1b in QCoreApplication::notifyInternal (this=0x7fff91ac4160, receiver=receiver@entry=0x15d9180, event=event@entry=0x7fff91ac3cf0) at kernel/qcoreapplication.cpp:935
#38 0x00007fd2d478b3c8 in QCoreApplication::sendSpontaneousEvent (event=0x7fff91ac3cf0, receiver=0x15d9180) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#39 QGuiApplicationPrivate::processMouseEvent (e=0x13c05a0) at kernel/qguiapplication.cpp:1772
#40 0x00007fd2d478d005 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x13c05a0) at kernel/qguiapplication.cpp:1576
#41 0x00007fd2d47725b8 in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#42 0x00007fd2c5425250 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#43 0x00007fd2cf061ff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007fd2cf062250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007fd2cf0622fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007fd2d44c027f in QEventDispatcherGlib::processEvents (this=0x1290400, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#47 0x00007fd2d446675a in QEventLoop::exec (this=this@entry=0x7fff91ac4070, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#48 0x00007fd2d446e2cc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#49 0x00000000004271c4 in main ()

Reported using DrKonqi