Application: muon (5.4.2)

Qt Version: 5.4.2
Operating System: Linux 4.2.0-17-generic x86_64
Distribution: Ubuntu 15.10

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

i just started muon clicked on search for updates, it found 4 upgradeable packages, i clicked full upgrade and it crashed.

-- 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 0x7fe56248b840 (LWP 23221))]

Thread 3 (Thread 0x7fe55f670700 (LWP 23222)):
#0  0x00007fe571d088dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fe56a9c1bd2 in poll (__timeout=-1, __nfds=1, __fds=0x7fe55f66fc80) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x24afe30, cond=cond@entry=0x24afe70, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:459
#3  0x00007fe56a9c374f in xcb_wait_for_event (c=0x24afe30) at ../../src/xcb_in.c:623
#4  0x00007fe561e27a39 in QXcbEventReader::run (this=0x24bd850) at qxcbconnection.cpp:1105
#5  0x00007fe5723fb2be in QThreadPrivate::start (arg=0x24bd850) at thread/qthread_unix.cpp:337
#6  0x00007fe56d6d46aa in start_thread (arg=0x7fe55f670700) at pthread_create.c:333
#7  0x00007fe571d13eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fe555f79700 (LWP 23226)):
#0  0x00007fe571d088dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fe56d1b41ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe56d1b42fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe57263229b in QEventDispatcherGlib::processEvents (this=0x7fe5480008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fe5725d875a in QEventLoop::exec (this=this@entry=0x7fe555f78d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fe5723f63d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fe5723fb2be in QThreadPrivate::start (arg=0x28108b0) at thread/qthread_unix.cpp:337
#7  0x00007fe56d6d46aa in start_thread (arg=0x7fe555f79700) at pthread_create.c:333
#8  0x00007fe571d13eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fe56248b840 (LWP 23221)):
[KCrash Handler]
#6  0x00007fe57234b558 in vtable for __cxxabiv1::__si_class_type_info () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#7  0x00007fe574d43991 in QApt::Backend::downloadSize (this=<optimized out>) at ../../src/backend.cpp:462
#8  0x000000000043e6f0 in StatusWidget::updateStatus (this=0x283d3e0) at ../../muon/StatusWidget.cpp:128
#9  0x00007fe57260b78a in QMetaObject::activate (sender=0x280ca00, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3717
#10 0x00007fe57260bf87 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7fe574f83c20 <QApt::Backend::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3582
#11 0x00007fe574d6f8b0 in QApt::Backend::packageChanged (this=<optimized out>) at moc_backend.cpp:348
#12 0x00007fe574d3bc92 in QApt::Backend::markPackagesForDistUpgrade (this=<optimized out>) at ../../src/backend.cpp:917
#13 0x0000000000429144 in MainWindow::markDistUpgrade (this=0x25eb5f0) at ../../muon/MainWindow.cpp:238
#14 0x00007fe57260b78a in QMetaObject::activate (sender=sender@entry=0x28219a0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffdca9c2010) at kernel/qobject.cpp:3717
#15 0x00007fe57260bf87 in QMetaObject::activate (sender=sender@entry=0x28219a0, m=m@entry=0x7fe57339fc80 <QAction::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffdca9c2010) at kernel/qobject.cpp:3582
#16 0x00007fe572e9f172 in QAction::triggered (this=this@entry=0x28219a0, _t1=false) at .moc/moc_qaction.cpp:360
#17 0x00007fe572ea1618 in QAction::activate (this=0x28219a0, event=<optimized out>) at kernel/qaction.cpp:1167
#18 0x00007fe572fa1e40 in QAbstractButtonPrivate::click (this=0x28513b0) at widgets/qabstractbutton.cpp:516
#19 0x00007fe572fa1f74 in QAbstractButton::mouseReleaseEvent (this=0x285c770, e=0x7ffdca9c2520) at widgets/qabstractbutton.cpp:1132
#20 0x00007fe5730654ca in QToolButton::mouseReleaseEvent (this=<optimized out>, e=<optimized out>) at widgets/qtoolbutton.cpp:609
#21 0x00007fe572eeb188 in QWidget::event (this=0x285c770, event=event@entry=0x7ffdca9c2520) at kernel/qwidget.cpp:9023
#22 0x00007fe572fa2cc3 in QAbstractButton::event (this=this@entry=0x285c770, e=e@entry=0x7ffdca9c2520) at widgets/qabstractbutton.cpp:1089
#23 0x00007fe5730655a9 in QToolButton::event (this=0x285c770, event=0x7ffdca9c2520) at widgets/qtoolbutton.cpp:965
#24 0x00007fe572ea8b8c in QApplicationPrivate::notify_helper (this=this@entry=0x248f180, receiver=receiver@entry=0x285c770, e=e@entry=0x7ffdca9c2520) at kernel/qapplication.cpp:3720
#25 0x00007fe572eaec7a in QApplication::notify (this=<optimized out>, receiver=0x285c770, e=0x7ffdca9c2520) at kernel/qapplication.cpp:3280
#26 0x00007fe5725daf1b in QCoreApplication::notifyInternal (this=0x7ffdca9c2db0, receiver=receiver@entry=0x285c770, event=event@entry=0x7ffdca9c2520) at kernel/qcoreapplication.cpp:935
#27 0x00007fe572ead6f2 in QCoreApplication::sendSpontaneousEvent (event=0x7ffdca9c2520, receiver=0x285c770) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#28 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x285c770, event=event@entry=0x7ffdca9c2520, alienWidget=alienWidget@entry=0x285c770, nativeWidget=0x25eb5f0, buttonDown=buttonDown@entry=0x7fe5733cea10 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2751
#29 0x00007fe572f02440 in QWidgetWindow::handleMouseEvent (this=this@entry=0x285c3a0, event=event@entry=0x7ffdca9c2940) at kernel/qwidgetwindow.cpp:543
#30 0x00007fe572f0478b in QWidgetWindow::event (this=0x285c3a0, event=0x7ffdca9c2940) at kernel/qwidgetwindow.cpp:210
#31 0x00007fe572ea8b8c in QApplicationPrivate::notify_helper (this=this@entry=0x248f180, receiver=receiver@entry=0x285c3a0, e=e@entry=0x7ffdca9c2940) at kernel/qapplication.cpp:3720
#32 0x00007fe572eae230 in QApplication::notify (this=0x7ffdca9c2db0, receiver=0x285c3a0, e=0x7ffdca9c2940) at kernel/qapplication.cpp:3503
#33 0x00007fe5725daf1b in QCoreApplication::notifyInternal (this=0x7ffdca9c2db0, receiver=receiver@entry=0x285c3a0, event=event@entry=0x7ffdca9c2940) at kernel/qcoreapplication.cpp:935
#34 0x00007fe5728fd3c8 in QCoreApplication::sendSpontaneousEvent (event=0x7ffdca9c2940, receiver=0x285c3a0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#35 QGuiApplicationPrivate::processMouseEvent (e=0x416bae0) at kernel/qguiapplication.cpp:1772
#36 0x00007fe5728ff005 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x416bae0) at kernel/qguiapplication.cpp:1576
#37 0x00007fe5728e45b8 in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#38 0x00007fe561e54250 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#39 0x00007fe56d1b3ff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007fe56d1b4250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007fe56d1b42fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007fe57263227f in QEventDispatcherGlib::processEvents (this=0x24e6b00, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#43 0x00007fe5725d875a in QEventLoop::exec (this=this@entry=0x7ffdca9c2cc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#44 0x00007fe5725e02cc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#45 0x00007fe5728f500c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#46 0x00007fe572ea5025 in QApplication::exec () at kernel/qapplication.cpp:2956
#47 0x0000000000427174 in main (argc=1, argv=<optimized out>) at ../../muon/main.cpp:61

Possible duplicates by query: bug 294785.

Reported using DrKonqi