Bug 356411

Summary: Plasma crashed on startup
Product: [Plasma] plasmashell Reporter: gabriele monfardini <gabrimonfa>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED UPSTREAM    
Severity: crash CC: alexey.min, b.gatessucks, bhush94, DonaldEdwardWinslow, piotr.mierzwinski, plasma-bugs, PTrenholme
Priority: NOR Keywords: drkonqi
Version: 5.4.2   
Target Milestone: 1.0   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description gabriele monfardini 2015-12-09 08:08:19 UTC 
Application: plasmashell (5.4.2)

Qt Version: 5.4.2
Operating System: Linux 4.2.0-19-generic x86_64
Distribution: Ubuntu 15.10

-- Information about the crash:
- What I was doing when the application crashed:
The system was starting up.
I've entered login and password, and the desktop was finishing loading.
Main panel was adjusting, icon in the systray finished loading some second before.
I'm on a dual monitor setup

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd0e4a5e800 (LWP 2588))]

Thread 10 (Thread 0x7fd0ce5b6700 (LWP 2591)):
#0  0x00007fd0df21a8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fd0e3261bd2 in poll (__timeout=-1, __nfds=1, __fds=0x7fd0ce5b5cc0) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x1e313d0, cond=cond@entry=0x1e31410, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:459
#3  0x00007fd0e326374f in xcb_wait_for_event (c=0x1e313d0) at ../../src/xcb_in.c:623
#4  0x00007fd0d1184a39 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#5  0x00007fd0df90d2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fd0de9fc6aa in start_thread (arg=0x7fd0ce5b6700) at pthread_create.c:333
#7  0x00007fd0df225eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fd0c7be2700 (LWP 2819)):
#0  0x00007fd0df21c743 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fd0dfb3f90f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fd0dfb4140e in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fd0dfb4193e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fd0dfaea75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fd0df9083d4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fd0e2130f85 in QQmlThreadPrivate::run (this=0x1f62ff0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007fd0df90d2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fd0de9fc6aa in start_thread (arg=0x7fd0c7be2700) at pthread_create.c:333
#9  0x00007fd0df225eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7fd0bd14d700 (LWP 2822)):
#0  0x00007fd0df21c743 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fd0dfb3f90f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fd0dfb4140e in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fd0dfb4193e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fd0dfaea75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fd0df9083d4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fd0e2130f85 in QQmlThreadPrivate::run (this=0x232fc00) at qml/ftw/qqmlthread.cpp:141
#7  0x00007fd0df90d2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fd0de9fc6aa in start_thread (arg=0x7fd0bd14d700) at pthread_create.c:333
#9  0x00007fd0df225eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fd0b6832700 (LWP 2831)):
#0  0x00007fd0df21c743 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fd0dfb3f90f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fd0dfb4140e in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fd0dfb4193e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fd0dfaea75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fd0df9083d4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fd0e2130f85 in QQmlThreadPrivate::run (this=0x24ce5a0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007fd0df90d2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fd0de9fc6aa in start_thread (arg=0x7fd0b6832700) at pthread_create.c:333
#9  0x00007fd0df225eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fd0b4fee700 (LWP 2832)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fd0e44bc114 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007fd0e44bc159 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007fd0de9fc6aa in start_thread (arg=0x7fd0b4fee700) at pthread_create.c:333
#4  0x00007fd0df225eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fd0ae5f0700 (LWP 2839)):
#0  0x00007fd0df21c743 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fd0dfb3f90f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fd0dfb4140e in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fd0dfb4193e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fd0dfaea75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fd0df9083d4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fd0e2aacef6 in QQuickPixmapReader::run (this=0x27f2300) at util/qquickpixmapcache.cpp:797
#7  0x00007fd0df90d2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fd0de9fc6aa in start_thread (arg=0x7fd0ae5f0700) at pthread_create.c:333
#9  0x00007fd0df225eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fd0220ea700 (LWP 2965)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fd0df90e55b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fd0e2b1fb3e in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x310ba18) at scenegraph/qsgthreadedrenderloop.cpp:232
#3  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x310b9a0) at scenegraph/qsgthreadedrenderloop.cpp:643
#4  0x00007fd0e2b203c3 in QSGRenderThread::run (this=0x310b9a0) at scenegraph/qsgthreadedrenderloop.cpp:672
#5  0x00007fd0df90d2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fd0de9fc6aa in start_thread (arg=0x7fd0220ea700) at pthread_create.c:333
#7  0x00007fd0df225eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fd01bbff700 (LWP 2966)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fd0df90e55b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fd0e2b1fb3e in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x2b6f488) at scenegraph/qsgthreadedrenderloop.cpp:232
#3  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x2b6f410) at scenegraph/qsgthreadedrenderloop.cpp:643
#4  0x00007fd0e2b203c3 in QSGRenderThread::run (this=0x2b6f410) at scenegraph/qsgthreadedrenderloop.cpp:672
#5  0x00007fd0df90d2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fd0de9fc6aa in start_thread (arg=0x7fd01bbff700) at pthread_create.c:333
#7  0x00007fd0df225eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fd0114f7700 (LWP 3184)):
#0  0x00007fd0df21c743 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fd0dfb3f90f in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fd0dfb4140e in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fd0dfb4193e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fd0dfaea75a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fd0df9083d4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fd01378e8f7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007fd0df90d2be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fd0de9fc6aa in start_thread (arg=0x7fd0114f7700) at pthread_create.c:333
#9  0x00007fd0df225eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fd0e4a5e800 (LWP 2588)):
[KCrash Handler]
#6  QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::data (this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qscopedpointer.h:135
#7  qGetPtrHelper<QScopedPointer<QObjectData> > (p=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qglobal.h:962
#8  QQmlEngine::d_func (this=<optimized out>) at ../../include/QtQml/5.4.2/QtQml/private/../../../../../src/qml/qml/qqmlengine.h:152
#9  QQmlEnginePrivate::get (e=<optimized out>) at ../../include/QtQml/5.4.2/QtQml/private/../../../../../src/qml/qml/qqmlengine_p.h:491
#10 QQmlBoundSignalExpression::function (this=this@entry=0x384e600) at qml/qqmlboundsignal.cpp:183
#11 0x00007fd0e20bb450 in QQmlBoundSignalExpression::sourceLocation (this=this@entry=0x384e600) at qml/qqmlboundsignal.cpp:154
#12 0x00007fd0e2099fc8 in QQmlData::destroyed (this=0x38276e0, object=0x3850110) at qml/qqmlengine.cpp:1620
#13 0x00007fd0dfb25424 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fd0e2b3d2bd in QQuickItem::~QQuickItem (this=0x3850110, __in_chrg=<optimized out>) at items/qquickitem.cpp:2223
#15 0x00007fd0af1bd8a6 in QQmlPrivate::QQmlElement<MouseEventListener>::~QQmlElement (this=0x3850110, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtQml/qqmlprivate.h:98
#16 QQmlPrivate::QQmlElement<MouseEventListener>::~QQmlElement (this=0x3850110, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtQml/qqmlprivate.h:98
#17 0x00007fd0e217b4f2 in QQmlDelegateModelPrivate::incubatorStatusChanged (this=0x35918a0, incubationTask=<optimized out>, status=<optimized out>) at types/qqmldelegatemodel.cpp:867
#18 0x00007fd0e20b61ee in QQmlIncubatorPrivate::changeStatus (s=<optimized out>, this=0x384b870) at qml/qqmlincubator.cpp:701
#19 QQmlIncubatorPrivate::incubate (this=0x384b870, i=...) at qml/qqmlincubator.cpp:368
#20 0x00007fd0e20b67b4 in QQmlIncubationController::incubateFor (this=this@entry=0x25d7850, msecs=<optimized out>) at qml/qqmlincubator.cpp:395
#21 0x00007fd0e2d9e7ac in KDeclarative::QmlObjectIncubationController::incubate (this=0x25d7840) at ../../../src/kdeclarative/private/qmlobject_p.h:63
#22 KDeclarative::QmlObjectIncubationController::incubatingObjectCountChanged (this=0x25d7840, count=1) at ../../../src/kdeclarative/private/qmlobject_p.h:79
#23 0x00007fd0e20b55cd in QQmlIncubatorPrivate::clear (this=0x343d6b0) at qml/qqmlincubator.cpp:149
#24 0x00007fd0e20b6038 in QQmlIncubatorPrivate::incubate (this=this@entry=0x343d6b0, i=...) at qml/qqmlincubator.cpp:360
#25 0x00007fd0e20b6678 in QQmlIncubatorPrivate::forceCompletion (this=0x343d6b0, i=...) at qml/qqmlincubator.cpp:269
#26 0x00007fd0e20b66dc in QQmlIncubator::forceCompletion (this=<optimized out>) at qml/qqmlincubator.cpp:600
#27 0x00007fd0e2d8e858 in KDeclarative::QmlObject::completeInitialization (this=0x343cc10, initialProperties=...) at ../../../src/kdeclarative/qmlobject.cpp:323
#28 0x00007fd0e45e6658 in PlasmaQuick::AppletQuickItem::init (this=this@entry=0x34d4220) at ../../../src/plasmaquick/appletquickitem.cpp:544
#29 0x00007fd0b68475dc in AppletInterface::init (this=0x34d4220) at ../../../../src/scriptengines/qml/plasmoid/appletinterface.cpp:169
#30 0x00007fd0e45e75d8 in PlasmaQuick::AppletQuickItem::itemChange (this=0x34d4220, change=QQuickItem::ItemSceneChange, value=...) at ../../../src/plasmaquick/appletquickitem.cpp:748
#31 0x00007fd0e2b398ee in QQuickItemPrivate::refWindow (this=this@entry=0x34db330, c=c@entry=0x2d53fd0) at items/qquickitem.cpp:2797
#32 0x00007fd0e2b3cbe4 in QQuickItem::setParentItem (this=this@entry=0x34d4220, parentItem=0x3850110) at items/qquickitem.cpp:2539
#33 0x00007fd0e2b3e84a in QQuickItem::qt_metacall (this=this@entry=0x34d4220, _c=_c@entry=QMetaObject::WriteProperty, _id=0, _a=_a@entry=0x7ffcba956600) at .moc/moc_qquickitem.cpp:904
#34 0x00007fd0e45e7657 in PlasmaQuick::AppletQuickItem::qt_metacall (this=this@entry=0x34d4220, _c=_c@entry=QMetaObject::WriteProperty, _id=<optimized out>, _a=_a@entry=0x7ffcba956600) at ./moc_appletquickitem.cpp:304
#35 0x00007fd0b6848267 in AppletInterface::qt_metacall (this=0x34d4220, _c=QMetaObject::WriteProperty, _id=<optimized out>, _a=0x7ffcba956600) at ./moc_appletinterface.cpp:515
#36 0x00007fd0e20ad571 in QQmlPropertyPrivate::write (object=object@entry=0x34d4220, property=..., value=..., context=0x3844810, flags=...) at qml/qqmlproperty.cpp:1314
#37 0x00007fd0e207e728 in QV4::QObjectWrapper::setProperty (object=object@entry=0x34d4220, ctx=ctx@entry=0x7ffcba956930, property=0x7fd0a8027e68, value=..., value@entry=...) at jsruntime/qv4qobjectwrapper.cpp:550
#38 0x00007fd0e207ecfb in QV4::QObjectWrapper::setQmlProperty (ctx=0x7ffcba956930, qmlContext=<optimized out>, object=0x34d4220, name=name@entry=0x7fd0bc135250, revisionMode=revisionMode@entry=QV4::QObjectWrapper::IgnoreRevision, value=..., value@entry=...) at jsruntime/qv4qobjectwrapper.cpp:437
#39 0x00007fd0e207ee1b in QV4::QObjectWrapper::put (m=0x7fd0ac9980c0, name=0x7fd0bc135250, value=...) at jsruntime/qv4qobjectwrapper.cpp:690
#40 0x00007fd0e2085b5d in QV4::Object::put (v=..., name=0x7fd0bc135250, this=<optimized out>) at jsruntime/qv4object_p.h:256
#41 QV4::Runtime::setProperty (ctx=<optimized out>, object=..., name=0x7fd0bc135250, value=...) at jsruntime/qv4runtime.cpp:556
#42 0x00007fd0ac10ecc8 in ?? ()
#43 0x0003000000000000 in ?? ()
#44 0x00007fd0e207cbed in QV4::QObjectWrapper::getProperty (object=0x7fd0b58320b8, ctx=0x7ffcba956930, property=0x7ffcba9568d0, captureRequired=<optimized out>) at jsruntime/qv4qobjectwrapper.cpp:386
#45 0x00007fd0c4079000 in ?? ()
#46 0x00007fd0ac876f60 in ?? ()
#47 0x0000000000000000 in ?? ()

Reported using DrKonqi
Comment 1 Bhushan Shah 2015-12-24 05:44:20 UTC 
*** Bug 357113 has been marked as a duplicate of this bug. ***
Comment 2 David Edmundson 2015-12-27 16:57:50 UTC 
*** Bug 356856 has been marked as a duplicate of this bug. ***
Comment 3 David Edmundson 2015-12-27 16:57:58 UTC 
*** Bug 356925 has been marked as a duplicate of this bug. ***
Comment 4 David Edmundson 2016-01-04 13:37:28 UTC 
*** Bug 357383 has been marked as a duplicate of this bug. ***
Comment 5 David Edmundson 2017-09-04 17:42:16 UTC 
*** Bug 362173 has been marked as a duplicate of this bug. ***
Comment 6 David Edmundson 2017-09-04 17:43:10 UTC 
This crash is deep in Qt using what is now a really old version of Qt.
The latest report is with Qt 5.6, and I've not had any since.

There is a good chance this has been fixed.

Please reopen if you see still see this exact crash.