Bug 329915

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 x86_64
Distribution: Ubuntu 13.10

-- Information about the crash:
- What I was doing when the application crashed:
On startup, everything is fine, but as soon as synaptiks is going to diplay the error message that no touchpads, are found, plasma crashes

The crash can be reproduced sometimes.

-- 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 0x7f60828b77c0 (LWP 1610))]

Thread 4 (Thread 0x7f6061cc3700 (LWP 1613)):
#0  0x00007f60755360ea in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f60755363c9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60754f5dd8 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60754f65c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f60754f67ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f607ed62a76 in QEventDispatcherGlib::processEvents (this=0x7f60540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f607ed345ef in QEventLoop::processEvents (this=this@entry=0x7f6061cc2d70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f607ed348e5 in QEventLoop::exec (this=this@entry=0x7f6061cc2d70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f607ec3388f in QThread::exec (this=this@entry=0x1110bf0) at thread/qthread.cpp:542
#9  0x00007f607ed15d13 in QInotifyFileSystemWatcherEngine::run (this=0x1110bf0) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f607ec35f2f in QThreadPrivate::start (arg=0x1110bf0) at thread/qthread_unix.cpp:338
#11 0x00007f6075c00f6e in start_thread (arg=0x7f6061cc3700) at pthread_create.c:311
#12 0x00007f60821969cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f604bf3c700 (LWP 1619)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f607b54906b in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f607b5490a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f6075c00f6e in start_thread (arg=0x7f604bf3c700) at pthread_create.c:311
#4  0x00007f60821969cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f5fca17f700 (LWP 1620)):
#0  0x00007f60821a4c36 in pthread_mutex_lock (mutex=0x7f5fc4000a60) at forward.c:192
#1  0x00007f60755363a1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60754f5d59 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60754f65c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f60754f67ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f607ed62a76 in QEventDispatcherGlib::processEvents (this=0x7f5fc40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f607ed345ef in QEventLoop::processEvents (this=this@entry=0x7f5fca17ed70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f607ed348e5 in QEventLoop::exec (this=this@entry=0x7f5fca17ed70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f607ec3388f in QThread::exec (this=this@entry=0x12d6ee0) at thread/qthread.cpp:542
#9  0x00007f607ed15d13 in QInotifyFileSystemWatcherEngine::run (this=0x12d6ee0) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f607ec35f2f in QThreadPrivate::start (arg=0x12d6ee0) at thread/qthread_unix.cpp:338
#11 0x00007f6075c00f6e in start_thread (arg=0x7f5fca17f700) at pthread_create.c:311
#12 0x00007f60821969cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f60828b77c0 (LWP 1610)):
[KCrash Handler]
#6  0x00007f6080931334 in QDeclarativeItem::~QDeclarativeItem (this=0x3921eb0, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007f5fcb098aa1 in ~QDeclarativeElement (this=0x3921eb0, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<Plasma::FrameSvgItem>::~QDeclarativeElement (this=0x3921eb0, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#9  0x00007f607ed4de08 in QObject::event (this=0x3921eb0, e=<optimized out>) at kernel/qobject.cpp:1175
#10 0x00007f607e0d2dfc in QApplicationPrivate::notify_helper (this=this@entry=0xc14dc0, receiver=receiver@entry=0x3921eb0, e=e@entry=0x3e54cb0) at kernel/qapplication.cpp:4567
#11 0x00007f607e0d9470 in QApplication::notify (this=this@entry=0xbfdc90, receiver=receiver@entry=0x3921eb0, e=e@entry=0x3e54cb0) at kernel/qapplication.cpp:4353
#12 0x00007f607f9f9a6a in KApplication::notify (this=0xbfdc90, receiver=0x3921eb0, event=0x3e54cb0) at ../../kdeui/kernel/kapplication.cpp:311
#13 0x00007f607ed358bd in QCoreApplication::notifyInternal (this=0xbfdc90, receiver=receiver@entry=0x3921eb0, event=event@entry=0x3e54cb0) at kernel/qcoreapplication.cpp:946
#14 0x00007f607ed38e1f in sendEvent (event=0x3e54cb0, receiver=0x3921eb0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0xb8b1f0) at kernel/qcoreapplication.cpp:1570
#16 0x00007f607ed392c3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#17 0x00007f607ed63073 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#18 postEventSourceDispatch (s=0xc1dec0) at kernel/qeventdispatcher_glib.cpp:279
#19 0x00007f60754f63b6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f60754f6708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f60754f67ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f607ed62a55 in QEventDispatcherGlib::processEvents (this=0xb8cad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007f607e1749d6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f607ed345ef in QEventLoop::processEvents (this=this@entry=0x7fff41eacf50, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f607ed348e5 in QEventLoop::exec (this=this@entry=0x7fff41eacf50, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007f607ed39e5b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#27 0x00007f607e0d134c in QApplication::exec () at kernel/qapplication.cpp:3828
#28 0x00007f60824a027c in kdemain (argc=1, argv=0x7fff41ead1a8) at ../../../../plasma/desktop/shell/main.cpp:126
#29 0x00007f60820bdde5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, ubp_av=0x7fff41ead1a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff41ead198) at libc-start.c:260
#30 0x000000000040070e in _start ()

Possible duplicates by query: bug 329851, bug 329790, bug 329747, bug 329632, bug 329462.

Reported using DrKonqi