Application: plasma-desktop (4.11.2)
KDE Platform Version: 4.11.2
Qt Version: 4.8.4
Operating System: Linux 3.11.0-12-generic i686
Distribution: UbuntuKylin 13.10

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

- Unusual behavior I noticed:

- Custom settings of the application:
Click on the active interface component button will collapse, each repetition.
This error seems to have been repeated reports over others。

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma 桌面外壳 (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb1322740 (LWP 1950))]

Thread 4 (Thread 0xa71b1b40 (LWP 1951)):
#0  0xb77da424 in __kernel_vsyscall ()
#1  0xb7679a0b in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0xb2090a4b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2081b68 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2081ca8 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb60f38df in QEventDispatcherGlib::processEvents (this=0xa6800468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb60c29f3 in QEventLoop::processEvents (this=this@entry=0xa71b1228, flags=...) at kernel/qeventloop.cpp:149
#7  0xb60c2d19 in QEventLoop::exec (this=this@entry=0xa71b1228, flags=...) at kernel/qeventloop.cpp:204
#8  0xb5fb1e3d in QThread::exec (this=this@entry=0x988f0c8) at thread/qthread.cpp:542
#9  0xb60a2e14 in QInotifyFileSystemWatcherEngine::run (this=0x988f0c8) at io/qfilesystemwatcher_inotify.cpp:265
#10 0xb5fb472f in QThreadPrivate::start (arg=0x988f0c8) at thread/qthread_unix.cpp:338
#11 0xb2196d78 in start_thread (arg=0xa71b1b40) at pthread_create.c:311
#12 0xb768901e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 3 (Thread 0xa67ffb40 (LWP 1952)):
#0  0xb77da424 in __kernel_vsyscall ()
#1  0xb219a84b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:187
#2  0xb76969bc in __pthread_cond_wait (cond=0xb329c8d0, mutex=0xb329c8b8) at forward.c:149
#3  0xb3199ef2 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb3199f3f in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb2196d78 in start_thread (arg=0xa67ffb40) at pthread_create.c:311
#6  0xb768901e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 2 (Thread 0xa517fb40 (LWP 1953)):
#0  0xb2199c34 in __pthread_mutex_unlock_usercnt (mutex=0xa4800558, decr=1) at pthread_mutex_unlock.c:52
#1  0xb7696c04 in pthread_mutex_unlock (mutex=0xa4800558) at forward.c:194
#2  0xb20c4bf0 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2080b72 in g_main_context_acquire () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2081a08 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb2081ca8 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb60f38df in QEventDispatcherGlib::processEvents (this=0xa4800468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0xb60c29f3 in QEventLoop::processEvents (this=this@entry=0xa517f228, flags=...) at kernel/qeventloop.cpp:149
#8  0xb60c2d19 in QEventLoop::exec (this=this@entry=0xa517f228, flags=...) at kernel/qeventloop.cpp:204
#9  0xb5fb1e3d in QThread::exec (this=this@entry=0x9e8aab0) at thread/qthread.cpp:542
#10 0xb60a2e14 in QInotifyFileSystemWatcherEngine::run (this=0x9e8aab0) at io/qfilesystemwatcher_inotify.cpp:265
#11 0xb5fb472f in QThreadPrivate::start (arg=0x9e8aab0) at thread/qthread_unix.cpp:338
#12 0xb2196d78 in start_thread (arg=0xa517fb40) at pthread_create.c:311
#13 0xb768901e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131

Thread 1 (Thread 0xb1322740 (LWP 1950)):
[KCrash Handler]
#7  0xb6c4f38e in QDeclarativeItem::~QDeclarativeItem (this=0xb4d7920, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#8  0xa695533a in ?? () from /usr/lib/kde4/imports/org/kde/plasma/core/libcorebindingsplugin.so
#9  0xa6941b2a in ?? () from /usr/lib/kde4/imports/org/kde/plasma/core/libcorebindingsplugin.so
#10 0xb60d7423 in qDeleteInEventHandler (o=o@entry=0xb4d7920) at kernel/qobject.cpp:4269
#11 0xb60dd5b0 in QObject::event (this=0xb4d7920, e=0xbecc888) at kernel/qobject.cpp:1175
#12 0xb6c4a384 in QDeclarativeItem::event (this=<optimized out>, ev=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:3748
#13 0xb55d4744 in QApplicationPrivate::notify_helper (this=0x8fbcfe0, receiver=0xb4d7920, e=0xbecc888) at kernel/qapplication.cpp:4567
#14 0xb55db223 in QApplication::notify (this=0x8fa9030, receiver=receiver@entry=0xb4d7920, e=e@entry=0xbecc888) at kernel/qapplication.cpp:4353
#15 0xb6737ff4 in KApplication::notify (this=0x8fa9030, receiver=0xb4d7920, event=0xbecc888) at ../../kdeui/kernel/kapplication.cpp:311
#16 0xb60c3eda in QCoreApplication::notifyInternal (this=0x8fa9030, receiver=receiver@entry=0xb4d7920, event=event@entry=0xbecc888) at kernel/qcoreapplication.cpp:946
#17 0xb60c76ad in sendEvent (event=0xbecc888, receiver=0xb4d7920) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#18 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x8f5b130) at kernel/qcoreapplication.cpp:1570
#19 0xb60c7bbc in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#20 0xb60f3f6e in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#21 postEventSourceDispatch (s=0x8fbe898) at kernel/qeventdispatcher_glib.cpp:279
#22 0xb208183e in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#23 0xb2081be8 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#24 0xb2081ca8 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0xb60f38bf in QEventDispatcherGlib::processEvents (this=this@entry=0x8f5bea8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#26 0xb568932e in QGuiEventDispatcherGlib::processEvents (this=0x8f5bea8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#27 0xb60c29f3 in QEventLoop::processEvents (this=this@entry=0xbffab298, flags=...) at kernel/qeventloop.cpp:149
#28 0xb60c2d19 in QEventLoop::exec (this=this@entry=0xbffab298, flags=...) at kernel/qeventloop.cpp:204
#29 0xb60c889e in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#30 0xb55d2974 in QApplication::exec () at kernel/qapplication.cpp:3828
#31 0xb7798927 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#32 0x0804855b in ?? ()
#33 0xb75b0905 in __libc_start_main (main=0x8048540, argc=1, ubp_av=0xbffab434, init=0x8048660 <__libc_csu_init>, fini=0x80486d0 <__libc_csu_fini>, rtld_fini=0xb77ea5f0 <_dl_fini>, stack_end=0xbffab42c) at libc-start.c:260
#34 0x0804857e in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 326636.

Possible duplicates by query: bug 327130, bug 326636, bug 326372, bug 326340, bug 325820.

Reported using DrKonqi