Bug 315457

Application: plasma-desktop (0.4)
KDE Platform Version: 4.10.00
Qt Version: 4.8.3
Operating System: Linux 3.5.0-24-generic x86_64
Distribution: Ubuntu 12.10

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

KDE 4.10 plama desktop consistently crashes on logging in.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcc037b5780 (LWP 4469))]

Thread 4 (Thread 0x7fcbf8813700 (LWP 4471)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fcc10824cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fcc10824d09 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fcc0aed2e9a in start_thread (arg=0x7fcbf8813700) at pthread_create.c:308
#4  0x00007fcc16be0cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fcbee9b8700 (LWP 4473)):
#0  0x00007fcc16bd5303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fcc0a7d3d84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc0a7d41e2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcbef4a54a6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fcc0a7f7645 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcc0aed2e9a in start_thread (arg=0x7fcbee9b8700) at pthread_create.c:308
#6  0x00007fcc16be0cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fcbe77fe700 (LWP 4476)):
#0  0x00007fff84bff827 in clock_gettime ()
#1  0x00007fcc0c6c115d in __GI_clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:116
#2  0x00007fcc136f89c4 in do_gettime (frac=0x7fcbe77fdb28, sec=0x7fcbe77fdb20) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007fcc137ce41d in QTimerInfoList::updateCurrentTime (this=this@entry=0x7fcbd4002860) at kernel/qeventdispatcher_unix.cpp:343
#5  0x00007fcc137ce763 in QTimerInfoList::timerWait (this=0x7fcbd4002860, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#6  0x00007fcc137cd2cc in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7fcbe77fdc14) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007fcc137cd375 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007fcc0a7d3618 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fcc0a7d3cab in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fcc0a7d3ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fcc137cdc16 in QEventDispatcherGlib::processEvents (this=0x7fcbd40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0x00007fcc1379e2bf in QEventLoop::processEvents (this=this@entry=0x7fcbe77fddd0, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007fcc1379e548 in QEventLoop::exec (this=0x7fcbe77fddd0, flags=...) at kernel/qeventloop.cpp:204
#14 0x00007fcc1369fb10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#15 0x00007fcc1377e9af in QInotifyFileSystemWatcherEngine::run (this=0x2c5f2f0) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007fcc136a2aec in QThreadPrivate::start (arg=0x2c5f2f0) at thread/qthread_unix.cpp:338
#17 0x00007fcc0aed2e9a in start_thread (arg=0x7fcbe77fe700) at pthread_create.c:308
#18 0x00007fcc16be0cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#19 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fcc037b5780 (LWP 4469)):
[KCrash Handler]
#6  0x00007fcc16732c11 in Plasma::PopupAppletPrivate::popupConstraintsEvent (this=0x2b9b260, constraints=...) at ../../plasma/popupapplet.cpp:241
#7  0x00007fcc166de748 in Plasma::Applet::flushPendingConstraintsEvents (this=0x2b9d3a0) at ../../plasma/applet.cpp:1361
#8  0x00007fcbfb27d116 in SystemTray::PlasmoidTask::forwardConstraintsEvent (this=0x2b9d3a0, constraints=<error reading variable: Cannot access memory at address 0x2>) at ../../../../../plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtask.cpp:126
#9  0x00007fcbfb27b944 in SystemTray::PlasmoidProtocol::forwardConstraintsEvent (this=0x2449ee0, constraints=..., host=0x2485350) at ../../../../../plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtaskprotocol.cpp:54
#10 0x00007fcbfb2743c9 in SystemTray::Manager::forwardConstraintsEvent (this=<optimized out>, constraints=..., host=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:99
#11 0x00007fcbfb283059 in SystemTray::Applet::constraintsEvent (this=0x2485350, constraints=...) at ../../../../../plasma/generic/applets/systemtray/ui/applet.cpp:360
#12 0x00007fcc166de760 in Plasma::Applet::flushPendingConstraintsEvents (this=0x2485350) at ../../plasma/applet.cpp:1365
#13 0x00007fcc166ecf32 in Plasma::ContainmentPrivate::initApplets (this=0x2424da0) at ../../plasma/containment.cpp:470
#14 0x00007fcc16700a2b in Plasma::CoronaPrivate::importLayout (this=0x227c840, conf=..., mergeConfig=mergeConfig@entry=false) at ../../plasma/corona.cpp:1067
#15 0x00007fcc16701684 in Plasma::Corona::loadLayout (this=this@entry=0x2215ea0, configName=...) at ../../plasma/corona.cpp:278
#16 0x00007fcc1670174c in Plasma::Corona::initializeLayout (this=0x2215ea0, configName=...) at ../../plasma/corona.cpp:181
#17 0x00007fcc16f00b83 in PlasmaApp::corona (this=this@entry=0x21ecaa0, createIfMissing=createIfMissing@entry=true) at ../../../../plasma/desktop/shell/plasmaapp.cpp:850
#18 0x00007fcc16f00ecd in PlasmaApp::setupDesktop (this=0x21ecaa0) at ../../../../plasma/desktop/shell/plasmaapp.cpp:312
#19 0x00007fcc16f0237a in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at ./plasmaapp.moc:125
#20 PlasmaApp::qt_static_metacall (_o=0x21ecaa0, _c=QMetaObject::WriteProperty, _id=7536737, _a=0x7fcc16ea5758 <main_arena+24>) at ./plasmaapp.moc:101
#21 0x00007fcc137b443e in QObject::event (this=0x21ecaa0, e=<optimized out>) at kernel/qobject.cpp:1195
#22 0x00007fcc12b48f94 in QApplication::event (this=0x21ecaa0, e=0x2374490) at kernel/qapplication.cpp:2544
#23 0x00007fcc12b46e9c in QApplicationPrivate::notify_helper (this=this@entry=0x220b380, receiver=receiver@entry=0x21ecaa0, e=e@entry=0x2374490) at kernel/qapplication.cpp:4562
#24 0x00007fcc12b4b30a in QApplication::notify (this=0x21ecaa0, receiver=0x21ecaa0, e=0x2374490) at kernel/qapplication.cpp:4423
#25 0x00007fcc14458636 in KApplication::notify (this=0x21ecaa0, receiver=0x21ecaa0, event=0x2374490) at ../../kdeui/kernel/kapplication.cpp:311
#26 0x00007fcc1379f56e in QCoreApplication::notifyInternal (this=0x21ecaa0, receiver=receiver@entry=0x21ecaa0, event=event@entry=0x2374490) at kernel/qcoreapplication.cpp:915
#27 0x00007fcc137a33f1 in sendEvent (event=0x2374490, receiver=0x21ecaa0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#28 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x218c1f0) at kernel/qcoreapplication.cpp:1539
#29 0x00007fcc137cda63 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#30 postEventSourceDispatch (s=0x21f6020) at kernel/qeventdispatcher_glib.cpp:279
#31 0x00007fcc0a7d3ab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007fcc0a7d3de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007fcc0a7d3ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007fcc137cdbf6 in QEventDispatcherGlib::processEvents (this=0x218dad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#35 0x00007fcc12bebc1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#36 0x00007fcc1379e2bf in QEventLoop::processEvents (this=this@entry=0x7fff84bca0a0, flags=...) at kernel/qeventloop.cpp:149
#37 0x00007fcc1379e548 in QEventLoop::exec (this=0x7fff84bca0a0, flags=...) at kernel/qeventloop.cpp:204
#38 0x00007fcc137a3708 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#39 0x00007fcc16ee91b1 in kdemain (argc=1, argv=0x7fff84bca398) at ../../../../plasma/desktop/shell/main.cpp:126
#40 0x00007fcc16b0e76d in __libc_start_main (main=0x4006a0 <main(int, char**)>, argc=1, ubp_av=0x7fff84bca398, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff84bca388) at libc-start.c:226
#41 0x00000000004006d1 in _start ()

This bug may be a duplicate of or related to bug 312075.

Possible duplicates by query: bug 314771, bug 314555, bug 314541, bug 314510, bug 313925.

Reported using DrKonqi