Bug 328756

Application: plasma-desktop (4.11.3)
KDE Platform Version: 4.11.3
Qt Version: 4.8.4
Operating System: Linux 3.11.0-15-generic i686
Distribution: Ubuntu 13.10

-- Information about the crash:
- What I was doing when the application crashed: On current boot I noticed that the usual widgets (Klipper, System Monitor, Mail Notifier, Notifications) had disappeared. I was attempting to find these when the crash happened.

- Unusual behavior I noticed: Tray items had disappeared

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb1285740 (LWP 3161))]

Thread 4 (Thread 0xae605b40 (LWP 3162)):
#0  0xb773c424 in __kernel_vsyscall ()
#1  0xb20f084b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:187
#2  0xb75ec9bc in __pthread_cond_wait (cond=0xb31f38d0, mutex=0xb31f38b8) at forward.c:149
#3  0xb30f0ef2 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb30f0f3f in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb20ecd78 in start_thread (arg=0xae605b40) at pthread_create.c:311
#6  0xb75df01e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 3 (Thread 0xa76aab40 (LWP 3166)):
#0  0xb773c424 in __kernel_vsyscall ()
#1  0xb75f24d2 in clock_gettime (clock_id=1, tp=0xa76a9fc8) at ../sysdeps/unix/clock_gettime.c:115
#2  0xb5f663ec in do_gettime (frac=0xa76a9fc0, sec=0xa76a9fb8) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0xb604bfd2 in updateCurrentTime (this=0xa6d02074) at kernel/qeventdispatcher_unix.cpp:354
#5  QTimerInfoList::timerWait (this=0xa6d02074, tm=...) at kernel/qeventdispatcher_unix.cpp:461
#6  0xb604a67b in timerSourcePrepareHelper (src=<optimized out>, timeout=0xa76aa0bc) at kernel/qeventdispatcher_glib.cpp:136
#7  0xb604a70d in timerSourcePrepare (source=0xa6d02040, timeout=0xa76aa0bc) at kernel/qeventdispatcher_glib.cpp:169
#8  0xb1fd7143 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb1fd7a5f in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb1fd7ca8 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#11 0xb604a8df in QEventDispatcherGlib::processEvents (this=0xa6d00468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0xb60199f3 in QEventLoop::processEvents (this=this@entry=0xa76aa228, flags=...) at kernel/qeventloop.cpp:149
#13 0xb6019d19 in QEventLoop::exec (this=this@entry=0xa76aa228, flags=...) at kernel/qeventloop.cpp:204
#14 0xb5f08e3d in QThread::exec (this=this@entry=0x8cf2660) at thread/qthread.cpp:542
#15 0xb5ff9e14 in QInotifyFileSystemWatcherEngine::run (this=0x8cf2660) at io/qfilesystemwatcher_inotify.cpp:265
#16 0xb5f0b72f in QThreadPrivate::start (arg=0x8cf2660) at thread/qthread_unix.cpp:338
#17 0xb20ecd78 in start_thread (arg=0xa76aab40) at pthread_create.c:311
#18 0xb75df01e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 2 (Thread 0xa6cffb40 (LWP 3167)):
#0  0xb773c424 in __kernel_vsyscall ()
#1  0xb75cd8db in read () at ../sysdeps/unix/syscall-template.S:81
#2  0xb2019d4e in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb1fd765b in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb1fd7afa in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb1fd7ca8 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb604a8df in QEventDispatcherGlib::processEvents (this=0xa6300468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0xb60199f3 in QEventLoop::processEvents (this=this@entry=0xa6cff228, flags=...) at kernel/qeventloop.cpp:149
#8  0xb6019d19 in QEventLoop::exec (this=this@entry=0xa6cff228, flags=...) at kernel/qeventloop.cpp:204
#9  0xb5f08e3d in QThread::exec (this=this@entry=0x8d1cd38) at thread/qthread.cpp:542
#10 0xb5ff9e14 in QInotifyFileSystemWatcherEngine::run (this=0x8d1cd38) at io/qfilesystemwatcher_inotify.cpp:265
#11 0xb5f0b72f in QThreadPrivate::start (arg=0x8d1cd38) at thread/qthread_unix.cpp:338
#12 0xb20ecd78 in start_thread (arg=0xa6cffb40) at pthread_create.c:311
#13 0xb75df01e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 1 (Thread 0xb1285740 (LWP 3161)):
[KCrash Handler]
#7  0xb6ba538e in QDeclarativeItem::~QDeclarativeItem (this=0x9d77d10, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#8  0xad86933a in Plasma::FrameSvgItem::~FrameSvgItem (this=0x9d77d10, __in_chrg=<optimized out>) at ../../../../plasma/declarativeimports/core/framesvgitem.cpp:73
#9  0xad855b2a in ~QDeclarativeElement (this=0x9d77d10, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#10 QDeclarativePrivate::QDeclarativeElement<Plasma::FrameSvgItem>::~QDeclarativeElement (this=0x9d77d10, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#11 0xb602e423 in qDeleteInEventHandler (o=o@entry=0x9d77d10) at kernel/qobject.cpp:4269
#12 0xb60345b0 in QObject::event (this=0x9d77d10, e=0x9c5a8e8) at kernel/qobject.cpp:1175
#13 0xb6ba0384 in QDeclarativeItem::event (this=<optimized out>, ev=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:3748
#14 0xb552b744 in QApplicationPrivate::notify_helper (this=0x86b6250, receiver=0x9d77d10, e=0x9c5a8e8) at kernel/qapplication.cpp:4567
#15 0xb5532223 in QApplication::notify (this=0x86a4270, receiver=receiver@entry=0x9d77d10, e=e@entry=0x9c5a8e8) at kernel/qapplication.cpp:4353
#16 0xb668dff4 in KApplication::notify (this=0x86a4270, receiver=0x9d77d10, event=0x9c5a8e8) at ../../kdeui/kernel/kapplication.cpp:311
#17 0xb601aeda in QCoreApplication::notifyInternal (this=0x86a4270, receiver=receiver@entry=0x9d77d10, event=event@entry=0x9c5a8e8) at kernel/qcoreapplication.cpp:946
#18 0xb601e6ad in sendEvent (event=0x9c5a8e8, receiver=0x9d77d10) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#19 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x865c130) at kernel/qcoreapplication.cpp:1570
#20 0xb601ebbc in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#21 0xb604af6e in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#22 postEventSourceDispatch (s=0x86b9790) at kernel/qeventdispatcher_glib.cpp:279
#23 0xb1fd783e in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#24 0xb1fd7be8 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0xb1fd7ca8 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0xb604a8bf in QEventDispatcherGlib::processEvents (this=this@entry=0x865cec0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#27 0xb55e032e in QGuiEventDispatcherGlib::processEvents (this=0x865cec0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#28 0xb60199f3 in QEventLoop::processEvents (this=this@entry=0xbfaa5ab8, flags=...) at kernel/qeventloop.cpp:149
#29 0xb6019d19 in QEventLoop::exec (this=this@entry=0xbfaa5ab8, flags=...) at kernel/qeventloop.cpp:204
#30 0xb601f89e in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#31 0xb5529974 in QApplication::exec () at kernel/qapplication.cpp:3828
#32 0xb76fa927 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#33 0x0804855b in ?? ()
#34 0xb7506905 in __libc_start_main (main=0x8048540, argc=1, ubp_av=0xbfaa5c54, init=0x8048660 <__libc_csu_init>, fini=0x80486d0 <__libc_csu_fini>, rtld_fini=0xb774c5f0 <_dl_fini>, stack_end=0xbfaa5c4c) at libc-start.c:260
#35 0x0804857e in _start ()

Possible duplicates by query: bug 327526, bug 327130, bug 326636, bug 326372, bug 326340.

Reported using DrKonqi