Application: plasmashell (5.5.4)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-15-generic i686
Distribution: Ubuntu Xenial Xerus (development branch)

-- Information about the crash:
- What I was doing when the application crashed: I just login and I see the colourful background, then plasma crashes.
I've tried turning off desktop effects, but it did not change anything

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb1b56800 (LWP 1982))]

Thread 7 (Thread 0xb1723b40 (LWP 1985)):
#0  0xb77adc31 in __kernel_vsyscall ()
#1  0xb4dd4e0f in poll () at ../sysdeps/unix/syscall-template.S:84
#2  0xb714d41d in ?? () from /usr/lib/i386-linux-gnu/libxcb.so.1
#3  0xb714f59b in xcb_wait_for_event () from /usr/lib/i386-linux-gnu/libxcb.so.1
#4  0xb185b143 in QXcbEventReader::run (this=0x9ff3418) at qxcbconnection.cpp:1253
#5  0xb50b23fb in QThreadPrivate::start (arg=0x9ff3418) at thread/qthread_unix.cpp:331
#6  0xb4c892b5 in start_thread (arg=0xb1723b40) at pthread_create.c:333
#7  0xb4ddf04e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 6 (Thread 0xb01d2b40 (LWP 1987)):
#0  0xb77adc31 in __kernel_vsyscall ()
#1  0xb4dd4e0f in poll () at ../sysdeps/unix/syscall-template.S:84
#2  0xb4483a90 in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb447507c in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb44751b4 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb52e1a94 in QEventDispatcherGlib::processEvents (this=0xaf800470, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0xb5286893 in QEventLoop::processEvents (this=0xb01d21d4, flags=...) at kernel/qeventloop.cpp:128
#7  0xb5286cea in QEventLoop::exec (this=0xb01d21d4, flags=...) at kernel/qeventloop.cpp:204
#8  0xb50acedd in QThread::exec (this=0xa098ad8) at thread/qthread.cpp:503
#9  0xb691e7ff in QQmlThreadPrivate::run (this=0xa098ad8) at qml/ftw/qqmlthread.cpp:141
#10 0xb50b23fb in QThreadPrivate::start (arg=0xa098ad8) at thread/qthread_unix.cpp:331
#11 0xb4c892b5 in start_thread (arg=0xb01d2b40) at pthread_create.c:333
#12 0xb4ddf04e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 5 (Thread 0xaa6afb40 (LWP 1988)):
#0  0xb77adc31 in __kernel_vsyscall ()
#1  0xb4dd4e0f in poll () at ../sysdeps/unix/syscall-template.S:84
#2  0xb4483a90 in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb447507c in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb44751b4 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb52e1a94 in QEventDispatcherGlib::processEvents (this=0xa9d00470, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0xb5286893 in QEventLoop::processEvents (this=0xaa6af1d4, flags=...) at kernel/qeventloop.cpp:128
#7  0xb5286cea in QEventLoop::exec (this=0xaa6af1d4, flags=...) at kernel/qeventloop.cpp:204
#8  0xb50acedd in QThread::exec (this=0xa1f3098) at thread/qthread.cpp:503
#9  0xb691e7ff in QQmlThreadPrivate::run (this=0xa1f3098) at qml/ftw/qqmlthread.cpp:141
#10 0xb50b23fb in QThreadPrivate::start (arg=0xa1f3098) at thread/qthread_unix.cpp:331
#11 0xb4c892b5 in start_thread (arg=0xaa6afb40) at pthread_create.c:333
#12 0xb4ddf04e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 4 (Thread 0xa936cb40 (LWP 1989)):
[KCrash Handler]
#7  0xae1b9f98 in nettle_yarrow256_update () from /usr/lib/i386-linux-gnu/libnettle.so.4
#8  0x9fb06c91 in ?? () from /usr/lib/i386-linux-gnu/libgnutls-deb0.so.28
#9  0x9fb06f96 in ?? () from /usr/lib/i386-linux-gnu/libgnutls-deb0.so.28
#10 0x9fa6f706 in ?? () from /usr/lib/i386-linux-gnu/libgnutls-deb0.so.28
#11 0x9fa630dd in gnutls_global_init () from /usr/lib/i386-linux-gnu/libgnutls-deb0.so.28
#12 0x9fa439e4 in ?? () from /usr/lib/i386-linux-gnu/libgnutls-deb0.so.28
#13 0xb77bd3e5 in call_init (l=<optimized out>, argc=argc@entry=3, argv=argv@entry=0xbfce5c04, env=0xbfce5c14) at dl-init.c:72
#14 0xb77bd50e in call_init (env=0xbfce5c14, argv=0xbfce5c04, argc=3, l=<optimized out>) at dl-init.c:30
#15 _dl_init (main_map=main_map@entry=0x9fe2fc98, argc=3, argv=0xbfce5c04, env=0xbfce5c14) at dl-init.c:120
#16 0xb77c1802 in dl_open_worker (a=0xa936b3bc) at dl-open.c:575
#17 0xb77bd284 in _dl_catch_error (objname=objname@entry=0xa936b3b4, errstring=errstring@entry=0xa936b3b8, mallocedp=mallocedp@entry=0xa936b3b3, operate=0xb77c1410 <dl_open_worker>, args=0xa936b3bc) at dl-error.c:187
#18 0xb77c0fa2 in _dl_open (file=0x9fe30570 "/usr/lib/i386-linux-gnu/qt5/qml/org/kde/plasma/printmanager/libprintmanager.so", mode=-2147483647, caller_dlopen=0xb52848b8 <QLibraryPrivate::load_sys()+1560>, nsid=<optimized out>, argc=3, argv=0xbfce5c04, env=0xbfce5c14) at dl-open.c:660
#19 0xb4bf0bf5 in dlopen_doit (a=0xa936b570) at dlopen.c:66
#20 0xb77bd284 in _dl_catch_error (objname=0xa8a070c4, errstring=0xa8a070c8, mallocedp=0xa8a070c0, operate=0xb4bf0b80 <dlopen_doit>, args=0xa936b570) at dl-error.c:187
#21 0xb4bf130d in _dlerror_run (operate=operate@entry=0xb4bf0b80 <dlopen_doit>, args=args@entry=0xa936b570) at dlerror.c:163
#22 0xb4bf0c9e in __dlopen (file=0x9fe30570 "/usr/lib/i386-linux-gnu/qt5/qml/org/kde/plasma/printmanager/libprintmanager.so", mode=1) at dlopen.c:87
#23 0xb52848b8 in QLibraryPrivate::load_sys (this=0x9fe2d950) at plugin/qlibrary_unix.cpp:227
#24 0xb527dc79 in QLibraryPrivate::load (this=0x9fe2d950) at plugin/qlibrary.cpp:534
#25 QLibraryPrivate::loadPlugin (this=0x9fe2d950) at plugin/qlibrary.cpp:582
#26 0xb52728df in QPluginLoader::load (this=0xa6bb5eb0) at plugin/qpluginloader.cpp:232
#27 0xb68f44f4 in QQmlImportDatabase::importDynamicPlugin (this=0xa24851c, filePath=..., uri=..., typeNamespace=..., vmaj=0, errors=0xa936bac0) at qml/qqmlimport.cpp:1973
#28 0xb68f5838 in QQmlImportsPrivate::importExtension (this=0xae41038, qmldirFilePath=..., uri=..., vmaj=0, vmin=2, database=0xa24851c, qmldir=0xa426fef8, errors=0xa936bac0) at qml/qqmlimport.cpp:927
#29 0xb68f63db in QQmlImportsPrivate::addLibraryImport (this=0xae41038, uri=..., prefix=..., vmaj=0, vmin=2, qmldirIdentifier=..., qmldirUrl=..., incomplete=false, database=0xa24851c, errors=0xa936bac0) at qml/qqmlimport.cpp:1266
#30 0xb68f665b in QQmlImports::addLibraryImport (this=0xae3f1a8, importDb=0xa24851c, uri=..., prefix=..., vmaj=0, vmin=2, qmldirIdentifier=..., qmldirUrl=..., incomplete=false, errors=0xa936bac0) at qml/qqmlimport.cpp:1497
#31 0xb68c281c in QQmlTypeLoader::Blob::addImport (this=0xae3f178, import=0xa4474938, errors=0xa936bac0) at qml/qqmltypeloader.cpp:1330
#32 0xb68c303f in QQmlTypeData::continueLoadFromIR (this=0xae3f178) at qml/qqmltypeloader.cpp:2172
#33 0xb68c395c in QQmlTypeData::dataReceived (this=0xae3f178, data=...) at qml/qqmltypeloader.cpp:2129
#34 0xb68bd9e0 in QQmlTypeLoader::setData (this=0xa2484cc, blob=0xae3f178, d=...) at qml/qqmltypeloader.cpp:1199
#35 0xb68be3d2 in QQmlTypeLoader::setData (this=0xa2484cc, blob=0xae3f178, file=0xa936bc94) at qml/qqmltypeloader.cpp:1191
#36 0xb68be736 in QQmlTypeLoader::loadThread (this=0xa2484cc, blob=0xae3f178) at qml/qqmltypeloader.cpp:1069
#37 0xb68bebe1 in QQmlTypeLoaderThread::loadThread (this=0xa2485a0, b=0xae3f178) at qml/qqmltypeloader.cpp:813
#38 0xb68c4466 in void QQmlThread::callMethodInThread<QQmlDataBlob*, QQmlDataBlob*, QQmlTypeLoaderThread>(void (QQmlTypeLoaderThread::*)(QQmlDataBlob*), QQmlDataBlob* const&)::I::call(QQmlThread*) (this=0xae41020, thread=0xa2485a0) at ../../include/QtQml/5.5.1/QtQml/private/../../../../../src/qml/qml/ftw/qqmlthread_p.h:154
#39 0xb691eb75 in QQmlThreadPrivate::threadEvent (this=0xa21c2a0) at qml/ftw/qqmlthread.cpp:190
#40 0xb691f279 in QQmlThreadPrivate::event (this=0xa21c2a0, e=0xae3f350) at qml/ftw/qqmlthread.cpp:128
#41 0xb5c1615a in QApplicationPrivate::notify_helper (this=0x9fea120, receiver=0xa21c2a0, e=0xae3f350) at kernel/qapplication.cpp:3716
#42 0xb5c1b81c in QApplication::notify (this=0xbfce5b08, receiver=0xa21c2a0, e=0xae3f350) at kernel/qapplication.cpp:3499
#43 0xb528975f in QCoreApplication::notifyInternal (this=0xbfce5b08, receiver=0xa21c2a0, event=0xae3f350) at kernel/qcoreapplication.cpp:965
#44 0xb528be3f in QCoreApplication::sendEvent (event=0xae3f350, receiver=<optimized out>) at kernel/qcoreapplication.h:224
#45 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9fe96e8) at kernel/qcoreapplication.cpp:1593
#46 0xb528c327 in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1451
#47 0xb52e1683 in postEventSourceDispatch (s=0xa8a00da0) at kernel/qeventdispatcher_glib.cpp:271
#48 0xb4474e49 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#49 0xb44750e9 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#50 0xb44751b4 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#51 0xb52e1a73 in QEventDispatcherGlib::processEvents (this=0xa8a00470, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#52 0xb5286893 in QEventLoop::processEvents (this=0xa936c1d4, flags=...) at kernel/qeventloop.cpp:128
#53 0xb5286cea in QEventLoop::exec (this=0xa936c1d4, flags=...) at kernel/qeventloop.cpp:204
#54 0xb50acedd in QThread::exec (this=0xa21c2a0) at thread/qthread.cpp:503
#55 0xb691e7ff in QQmlThreadPrivate::run (this=0xa21c2a0) at qml/ftw/qqmlthread.cpp:141
#56 0xb50b23fb in QThreadPrivate::start (arg=0xa21c2a0) at thread/qthread_unix.cpp:331
#57 0xb4c892b5 in start_thread (arg=0xa936cb40) at pthread_create.c:333
#58 0xb4ddf04e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 3 (Thread 0xa8124b40 (LWP 1990)):
#0  0xb77adc31 in __kernel_vsyscall ()
#1  0xb4c8ea7c in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/i386/pthread_cond_wait.S:187
#2  0xb4deb7cd in __pthread_cond_wait (cond=0xb77198d0, mutex=0xb77198b8) at forward.c:149
#3  0xb75e1a2c in ?? () from /usr/lib/i386-linux-gnu/libQt5Script.so.5
#4  0xb75e1a6c in ?? () from /usr/lib/i386-linux-gnu/libQt5Script.so.5
#5  0xb4c892b5 in start_thread (arg=0xa8124b40) at pthread_create.c:333
#6  0xb4ddf04e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 2 (Thread 0xa6a38b40 (LWP 1991)):
#0  0xb44bb3ff in g_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb447519f in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb52e1a94 in QEventDispatcherGlib::processEvents (this=0xa6100470, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#3  0xb5286893 in QEventLoop::processEvents (this=0xa6a38184, flags=...) at kernel/qeventloop.cpp:128
#4  0xb5286cea in QEventLoop::exec (this=0xa6a38184, flags=...) at kernel/qeventloop.cpp:204
#5  0xb50acedd in QThread::exec (this=0xa409fc8) at thread/qthread.cpp:503
#6  0xb6cfe8a9 in QQuickPixmapReader::run (this=0xa409fc8) at util/qquickpixmapcache.cpp:817
#7  0xb50b23fb in QThreadPrivate::start (arg=0xa409fc8) at thread/qthread_unix.cpp:331
#8  0xb4c892b5 in start_thread (arg=0xa6a38b40) at pthread_create.c:333
#9  0xb4ddf04e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 1 (Thread 0xb1b56800 (LWP 1982)):
#0  0xb77adc31 in __kernel_vsyscall ()
#1  0xb4c8ea7c in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/i386/pthread_cond_wait.S:187
#2  0xb4deb7cd in __pthread_cond_wait (cond=0xa248628, mutex=0xa248610) at forward.c:149
#3  0xb50b35d3 in QWaitConditionPrivate::wait (time=4294967295, this=0xa248610) at thread/qwaitcondition_unix.cpp:136
#4  QWaitCondition::wait (this=0xa21c2dc, mutex=0xa21c2d8, time=4294967295) at thread/qwaitcondition_unix.cpp:208
#5  0xb691efa4 in QQmlThreadPrivate::wait (this=<optimized out>) at qml/ftw/qqmlthread.cpp:56
#6  QQmlThread::internalCallMethodInThread (this=0xa2485a0, message=0xae41020) at qml/ftw/qqmlthread.cpp:321
#7  0xb68bed4d in QQmlThread::callMethodInThread<QQmlDataBlob*, QQmlDataBlob*, QQmlTypeLoaderThread> (arg=<synthetic pointer>, Member=<optimized out>, this=0xa2485a0) at ../../include/QtQml/5.5.1/QtQml/private/../../../../../src/qml/qml/ftw/qqmlthread_p.h:157
#8  QQmlTypeLoaderThread::load (b=0xae3f178, this=0xa2485a0) at qml/qqmltypeloader.cpp:752
#9  QQmlTypeLoader::load (this=0xa2484cc, blob=0xae3f178, mode=QQmlTypeLoader::PreferSynchronous) at qml/qqmltypeloader.cpp:931
#10 0xb68bf526 in QQmlTypeLoader::getType (this=0xa2484cc, url=..., mode=QQmlTypeLoader::PreferSynchronous) at qml/qqmltypeloader.cpp:1613
#11 0xb689d437 in QQmlComponentPrivate::loadUrl (this=0xae3efa8, newUrl=..., mode=QQmlComponent::PreferSynchronous) at qml/qqmlcomponent.cpp:682
#12 0xb689db31 in QQmlComponent::loadUrl (this=0xae3ef98, url=...) at qml/qqmlcomponent.cpp:639
#13 0xb706d9fd in ?? () from /usr/lib/i386-linux-gnu/libKF5Declarative.so.5
#14 0xb773c913 in PlasmaQuick::AppletQuickItem::init() () from /usr/lib/i386-linux-gnu/libKF5PlasmaQuick.so.5
#15 0xa937e38f in ?? () from /usr/lib/i386-linux-gnu/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so
#16 0xa937d32c in ?? () from /usr/lib/i386-linux-gnu/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so
#17 0xb52b63a0 in QMetaCallEvent::placeMetaCall (this=0xab26828, object=0xa9f5a10) at kernel/qobject.cpp:486
#18 0xb52ba1c3 in QObject::event (this=0xa9f5a10, e=0xab26828) at kernel/qobject.cpp:1239
#19 0xb6d988fa in QQuickItem::event (this=0xa9f5a10, ev=0xab26828) at items/qquickitem.cpp:7382
#20 0xa937e626 in ?? () from /usr/lib/i386-linux-gnu/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so
#21 0xb5c1615a in QApplicationPrivate::notify_helper (this=0x9fea120, receiver=0xa9f5a10, e=0xab26828) at kernel/qapplication.cpp:3716
#22 0xb5c1b81c in QApplication::notify (this=0xbfce5b08, receiver=0xa9f5a10, e=0xab26828) at kernel/qapplication.cpp:3499
#23 0xb528975f in QCoreApplication::notifyInternal (this=0xbfce5b08, receiver=0xa9f5a10, event=0xab26828) at kernel/qcoreapplication.cpp:965
#24 0xb528be3f in QCoreApplication::sendEvent (event=0xab26828, receiver=<optimized out>) at kernel/qcoreapplication.h:224
#25 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9fe4e50) at kernel/qcoreapplication.cpp:1593
#26 0xb528c327 in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1451
#27 0xb52e1683 in postEventSourceDispatch (s=0xa0138e8) at kernel/qeventdispatcher_glib.cpp:271
#28 0xb4474e49 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#29 0xb44750e9 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#30 0xb44751b4 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#31 0xb52e1a73 in QEventDispatcherGlib::processEvents (this=0xa0165e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#32 0xb1890781 in QPAEventDispatcherGlib::processEvents (this=0xa0165e0, flags=...) at eventdispatchers/qeventdispatcher_glib.cpp:115
#33 0xb5286893 in QEventLoop::processEvents (this=0xbfce5a28, flags=...) at kernel/qeventloop.cpp:128
#34 0xb5286cea in QEventLoop::exec (this=0xbfce5a28, flags=...) at kernel/qeventloop.cpp:204
#35 0xb528f2c5 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#36 0xb55ae931 in QGuiApplication::exec () at kernel/qguiapplication.cpp:1542
#37 0xb5c12024 in QApplication::exec () at kernel/qapplication.cpp:2976
#38 0x08071eee in main (argc=3, argv=0xbfce5c04) at ../../shell/main.cpp:181

Reported using DrKonqi