Bug 371995 - Plasma crashed after unlocking widgets
Summary: Plasma crashed after unlocking widgets
Status: RESOLVED DUPLICATE of bug 371507
Alias: None
Product: plasmashell
Classification: Plasma
Component: Task Manager and Icons-Only Task Manager (show other bugs)
Version: 5.8.3
Platform: Arch Linux Linux
: NOR crash
Target Milestone: 1.0
Assignee: David Edmundson
URL:
Keywords: drkonqi
Depends on:
Blocks:
 
Reported: 2016-11-02 19:42 UTC by Timo
Modified: 2016-11-13 23:45 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:


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Description Timo 2016-11-02 19:42:45 UTC
Application: plasmashell (5.8.3)

Qt Version: 5.7.0
Frameworks Version: 5.27.0
Operating System: Linux 4.8.6-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
	Unlocking the widgets of my panel/toolbar

- Unusual behavior I noticed:
	Widgets stay locked after starting plasma again

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f48eb2307c0 (LWP 629))]

Thread 10 (Thread 0x7f480ebde700 (LWP 2398)):
#0  0x00007f48e412b10f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f48e5016c2b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f48e8f82395 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f48e8f82c8a in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f48e5015d78 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f48e4125454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f48e492b7df in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f481b856700 (LWP 1346)):
#0  0x00007f48e492248d in poll () at /usr/lib/libc.so.6
#1  0x00007f48e98e38e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f48e98e3fad in  () at /usr/lib/libxcb.so.1
#3  0x00007f48e98e402d in xcb_writev () at /usr/lib/libxcb.so.1
#4  0x00007f48e9b41f4e in _XSend () at /usr/lib/libX11.so.6
#5  0x00007f48e9b42290 in _XFlush () at /usr/lib/libX11.so.6
#6  0x00007f48e9b2437a in XFlush () at /usr/lib/libX11.so.6
#7  0x00007f48d47a44b2 in  () at /usr/lib/qt/plugins/xcbglintegrations/libqxcb-glx-integration.so
#8  0x00007f48e5778d2d in QOpenGLContext::swapBuffers(QSurface*) () at /usr/lib/libQt5Gui.so.5
#9  0x00007f48e8f7e85c in  () at /usr/lib/libQt5Quick.so.5
#10 0x00007f48e8f82b4c in  () at /usr/lib/libQt5Quick.so.5
#11 0x00007f48e5015d78 in  () at /usr/lib/libQt5Core.so.5
#12 0x00007f48e4125454 in start_thread () at /usr/lib/libpthread.so.0
#13 0x00007f48e492b7df in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f48351ef700 (LWP 982)):
#0  0x00007f48e412b10f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f48e5016c2b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f48e8f82395 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f48e8f82c8a in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f48e5015d78 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f48e4125454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f48e492b7df in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f4836801700 (LWP 969)):
#0  0x00007f48dfbe4cae in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#1  0x00007f48dfbe56ab in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f48dfbe589c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f48e524472b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f48e51ee23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f48e50110f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f48e8f13856 in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007f48e5015d78 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f48e4125454 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f48e492b7df in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f48c6399700 (LWP 882)):
#0  0x00007f48e412b10f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f48ea9a3ac4 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f48ea9a3b09 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f48e4125454 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f48e492b7df in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f48c7fff700 (LWP 848)):
#0  0x00007ffee6dfc939 in  ()
#1  0x00007ffee6dfcbc5 in clock_gettime ()
#2  0x00007f48e49386b6 in clock_gettime () at /usr/lib/libc.so.6
#3  0x00007f48e50bb1a1 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f48e52423a9 in QTimerInfoList::updateCurrentTime() () at /usr/lib/libQt5Core.so.5
#5  0x00007f48e5242955 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/libQt5Core.so.5
#6  0x00007f48e5243cfe in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f48dfbe4c89 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#8  0x00007f48dfbe56ab in  () at /usr/lib/libglib-2.0.so.0
#9  0x00007f48dfbe589c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#10 0x00007f48e524472b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#11 0x00007f48e51ee23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#12 0x00007f48e50110f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#13 0x00007f48e83742d5 in  () at /usr/lib/libQt5Qml.so.5
#14 0x00007f48e5015d78 in  () at /usr/lib/libQt5Core.so.5
#15 0x00007f48e4125454 in start_thread () at /usr/lib/libpthread.so.0
#16 0x00007f48e492b7df in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f48cdcbd700 (LWP 707)):
#0  0x00007f48dfc2adb9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f48dfbe47b4 in g_main_context_release () at /usr/lib/libglib-2.0.so.0
#2  0x00007f48dfbe573a in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f48dfbe589c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f48e524472b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f48e51ee23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f48e50110f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f48e83742d5 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007f48e5015d78 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f48e4125454 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f48e492b7df in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f48cf705700 (LWP 646)):
#0  0x00007f48e491e4ed in read () at /usr/lib/libc.so.6
#1  0x00007f48dfc29a10 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f48dfbe5235 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f48dfbe5724 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f48dfbe589c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f48e524472b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f48e51ee23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f48e50110f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f48e5d91e55 in  () at /usr/lib/libQt5DBus.so.5
#9  0x00007f48e5015d78 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f48e4125454 in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f48e492b7df in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f48d57c7700 (LWP 639)):
#0  0x00007f48e492248d in poll () at /usr/lib/libc.so.6
#1  0x00007f48e98e38e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f48e98e5679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f48d7b37449 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f48e5015d78 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f48e4125454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f48e492b7df in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f48eb2307c0 (LWP 629)):
[KCrash Handler]
#6  0x00007f480d897b94 in  () at /usr/lib/libQtGui.so.4
#7  0x00007f48eb1204fa in call_init.part () at /lib64/ld-linux-x86-64.so.2
#8  0x00007f48eb12060b in _dl_init () at /lib64/ld-linux-x86-64.so.2
#9  0x00007f48eb124b38 in dl_open_worker () at /lib64/ld-linux-x86-64.so.2
#10 0x00007f48eb1203a4 in _dl_catch_error () at /lib64/ld-linux-x86-64.so.2
#11 0x00007f48eb1242d9 in _dl_open () at /lib64/ld-linux-x86-64.so.2
#12 0x00007f48e3ad0ee9 in  () at /usr/lib/libdl.so.2
#13 0x00007f48eb1203a4 in _dl_catch_error () at /lib64/ld-linux-x86-64.so.2
#14 0x00007f48e3ad1521 in  () at /usr/lib/libdl.so.2
#15 0x00007f48e3ad0f82 in dlopen () at /usr/lib/libdl.so.2
#16 0x00007f4819c4fbb0 in  () at /usr/lib/libvlccore.so.8
#17 0x00007f4819c33ebb in  () at /usr/lib/libvlccore.so.8
#18 0x00007f4819c341e8 in  () at /usr/lib/libvlccore.so.8
#19 0x00007f4819c34144 in  () at /usr/lib/libvlccore.so.8
#20 0x00007f4819c346c4 in  () at /usr/lib/libvlccore.so.8
#21 0x00007f4819c34cca in  () at /usr/lib/libvlccore.so.8
#22 0x00007f4819bbaeb1 in libvlc_InternalInit () at /usr/lib/libvlccore.so.8
#23 0x00007f481998bcee in libvlc_new () at /usr/lib/libvlc.so.5
#24 0x00007f4819eec2c8 in  () at /usr/lib/qt5/plugins/phonon4qt5_backend/phonon_vlc.so
#25 0x00007f4819ec1586 in  () at /usr/lib/qt5/plugins/phonon4qt5_backend/phonon_vlc.so
#26 0x00007f4819ef0195 in qt_plugin_instance () at /usr/lib/qt5/plugins/phonon4qt5_backend/phonon_vlc.so
#27 0x00007f48e51d8cdb in QPluginLoader::instance() () at /usr/lib/libQt5Core.so.5
#28 0x00007f48dea95180 in  () at /usr/lib/libphonon4qt5.so.4
#29 0x00007f48dea97ada in  () at /usr/lib/libphonon4qt5.so.4
#30 0x00007f48dea98179 in  () at /usr/lib/libphonon4qt5.so.4
#31 0x00007f48dea98aa4 in Phonon::Factory::backend(bool) () at /usr/lib/libphonon4qt5.so.4
#32 0x00007f48dea99339 in  () at /usr/lib/libphonon4qt5.so.4
#33 0x00007f48dea8d031 in  () at /usr/lib/libphonon4qt5.so.4
#34 0x00007f48e32647e0 in  () at /usr/lib/libKF5Notifications.so.5
#35 0x00007f48e32431c0 in  () at /usr/lib/libKF5Notifications.so.5
#36 0x00007f48e323f490 in KNotification::sendEvent() () at /usr/lib/libKF5Notifications.so.5
#37 0x00007f483750b1c9 in  () at /usr/lib/qt/qml/org/kde/private/desktopcontainment/desktop/libdesktopplugin.so
#38 0x00007f483750b82d in  () at /usr/lib/qt/qml/org/kde/private/desktopcontainment/desktop/libdesktopplugin.so
#39 0x00007f483750bbd0 in  () at /usr/lib/qt/qml/org/kde/private/desktopcontainment/desktop/libdesktopplugin.so
#40 0x00007f48e832ca99 in  () at /usr/lib/libQt5Qml.so.5
#41 0x00007f48e82ba36e in  () at /usr/lib/libQt5Qml.so.5
#42 0x00007f48e82bb5f9 in  () at /usr/lib/libQt5Qml.so.5
#43 0x00007f48e82bc34d in QV4::QObjectMethod::callInternal(QV4::CallData*) const () at /usr/lib/libQt5Qml.so.5
#44 0x00007f48e82d1730 in QV4::Runtime::callProperty(QV4::ExecutionEngine*, int, QV4::CallData*) () at /usr/lib/libQt5Qml.so.5
#45 0x00007f48c477aaca in  ()
#46 0x00007ffee6dea098 in  ()
#47 0xffffffffffffffff in #48 0x00000100ffff0000 in  ()
#49 0x00007ffee6dea080 in  ()
#50 0xffffffffffffffff in #51 0x00000100ffff0000 in  ()
#52 0x00007ffee6dea068 in  ()
#53 0x00007f48c7000370 in  ()
#54 0x00007f48c7000010 in  ()
#55 0x000000000158aca0 in  ()
#56 0x00007f48c7000368 in  ()
#57 0x00007f48e826864b in  () at /usr/lib/libQt5Qml.so.5
#58 0x00007f48e83586bd in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () at /usr/lib/libQt5Qml.so.5
#59 0x00007f48e82fdb44 in QQmlBoundSignalExpression::evaluate(void**) () at /usr/lib/libQt5Qml.so.5
#60 0x00007f48e82fec7b in  () at /usr/lib/libQt5Qml.so.5
#61 0x00007f48e8335ed4 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/lib/libQt5Qml.so.5
#62 0x00007f48e82e002c in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /usr/lib/libQt5Qml.so.5
#63 0x00007f48e521bd7c in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#64 0x00007f48e521b9ce in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#65 0x00007f48e963ef1e in Plasma::Applet::immutabilityChanged(Plasma::Types::ImmutabilityType) () at /usr/lib/libKF5Plasma.so.5
#66 0x00007f48e96409a0 in Plasma::Applet::flushPendingConstraintsEvents() () at /usr/lib/libKF5Plasma.so.5
#67 0x00007f48e964271f in Plasma::Applet::timerEvent(QTimerEvent*) () at /usr/lib/libKF5Plasma.so.5
#68 0x00007f48e521c473 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#69 0x00007f48e615ae0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#70 0x00007f48e6162581 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#71 0x00007f48e51efde0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#72 0x00007f48e52436ae in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#73 0x00007f48e5243bd1 in  () at /usr/lib/libQt5Core.so.5
#74 0x00007f48dfbe5587 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#75 0x00007f48dfbe57f0 in  () at /usr/lib/libglib-2.0.so.0
#76 0x00007f48dfbe589c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#77 0x00007f48e524470f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#78 0x00007f48e51ee23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#79 0x00007f48e51f673c in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#80 0x000000000041c8b2 in  ()
#81 0x00007f48e4863291 in __libc_start_main () at /usr/lib/libc.so.6
#82 0x000000000041cc3a in _start ()

Reported using DrKonqi
Comment 1 Timo 2016-11-02 19:49:42 UTC

*** This bug has been marked as a duplicate of bug 366298 ***
Comment 2 Christoph Feck 2016-11-02 22:19:41 UTC
No, it is bug 371507.

*** This bug has been marked as a duplicate of bug 371507 ***
Comment 3 Timo 2016-11-02 22:43:01 UTC
(In reply to Christoph Feck from comment #2)
> No, it is bug 371507.
> 
> *** This bug has been marked as a duplicate of bug 371507 ***

Just because I am using Archlinux does not mean that the problem I am reporting is the same. 
I had no problem using the error reporting GUI (what I understand is meant by 'drkonqi') and I am not reporting any problem related to it.

*** This bug has been marked as a duplicate of bug 366298 ***
Comment 4 Christoph Feck 2016-11-02 23:05:39 UTC
Read the backtrace of the crash. Your issue is that VLC crashes because of a mix of Qt4 and Qt5.

Please trust bug triagers and do not change the bug status unless you have actual evidence they are wrong.

*** This bug has been marked as a duplicate of bug 371507 ***
Comment 5 Timo 2016-11-13 23:45:20 UTC
This got fixed in the latest update