Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-32-generic i686
Distribution: Ubuntu 12.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:
After a restart I investigated a crash of KDE (in crash report asistant) in monitor 1 and removed a plasma panel from the second monitor and a new crash report was popup.

- Unusual behavior I noticed:
Periodicaly some kde application crashes (or kde itself) and pc hangs continously running the hdd and havind problems even with the mouse pointer that move slowly or stop responding.

-- 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 0xb7780740 (LWP 3215))]

Thread 6 (Thread 0xb0611b40 (LWP 3220)):
#0  0x00265898 in pthread_mutex_unlock (mutex=0xafd00550) at forward.c:184
#1  0x0567d410 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0x0563e09b in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x0563e201 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x02a4e8e7 in QEventDispatcherGlib::processEvents (this=0xafd00468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x02a1a50d in QEventLoop::processEvents (this=0xb0611240, flags=...) at kernel/qeventloop.cpp:149
#6  0x02a1a7a9 in QEventLoop::exec (this=0xb0611240, flags=...) at kernel/qeventloop.cpp:204
#7  0x0290394c in QThread::exec (this=0x9743a20) at thread/qthread.cpp:501
#8  0x029f7b5d in QInotifyFileSystemWatcherEngine::run (this=0x9743a20) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x02906de0 in QThreadPrivate::start (arg=0x9743a20) at thread/qthread_unix.cpp:298
#10 0x0895cd4c in start_thread (arg=0xb0611b40) at pthread_create.c:308
#11 0x00257d3e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 5 (Thread 0xaf0a5b40 (LWP 3274)):
#0  0x00e6fdcd in __GI_clock_gettime (clock_id=1, tp=0xaf0a4fb8) at ../sysdeps/unix/clock_gettime.c:116
#1  0x02965315 in do_gettime (frac=0xaf0a4fb0, sec=0xaf0a4fa8) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x02a4f226 in QTimerInfoList::updateCurrentTime (this=0xae702074) at kernel/qeventdispatcher_unix.cpp:343
#4  0x02a4f57a in QTimerInfoList::timerWait (this=0xae702074, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#5  0x02a4de23 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xaf0a50bc) at kernel/qeventdispatcher_glib.cpp:136
#6  0x02a4debd in timerSourcePrepare (source=0xae702040, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x0563d872 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x0563dfaf in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x0563e201 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0x02a4e8e7 in QEventDispatcherGlib::processEvents (this=0xae700468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#11 0x02a1a50d in QEventLoop::processEvents (this=0xaf0a5240, flags=...) at kernel/qeventloop.cpp:149
#12 0x02a1a7a9 in QEventLoop::exec (this=0xaf0a5240, flags=...) at kernel/qeventloop.cpp:204
#13 0x0290394c in QThread::exec (this=0x9bf7278) at thread/qthread.cpp:501
#14 0x029f7b5d in QInotifyFileSystemWatcherEngine::run (this=0x9bf7278) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x02906de0 in QThreadPrivate::start (arg=0x9bf7278) at thread/qthread_unix.cpp:298
#16 0x0895cd4c in start_thread (arg=0xaf0a5b40) at pthread_create.c:308
#17 0x00257d3e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 4 (Thread 0xadfdcb40 (LWP 3286)):
#0  0x008c8416 in __kernel_vsyscall ()
#1  0x0896096b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x0026564c in __pthread_cond_wait (cond=0x201d890, mutex=0x201d878) at forward.c:139
#3  0x01f19029 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0x01f1906f in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0x0895cd4c in start_thread (arg=0xadfdcb40) at pthread_create.c:308
#6  0x00257d3e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 3 (Thread 0xace2fb40 (LWP 3292)):
#0  0x008c8416 in __kernel_vsyscall ()
#1  0x0896096b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x0026564c in __pthread_cond_wait (cond=0x535ba30, mutex=0x535ba18) at forward.c:139
#3  0x04c2a263 in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#4  0x04c2a37f in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#5  0x0895cd4c in start_thread (arg=0xace2fb40) at pthread_create.c:308
#6  0x00257d3e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0xac506b40 (LWP 3293)):
#0  0x00e6fdcd in __GI_clock_gettime (clock_id=1, tp=0xac506008) at ../sysdeps/unix/clock_gettime.c:116
#1  0x02965315 in do_gettime (frac=0xac506000, sec=0xac505ff8) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x02a4f226 in QTimerInfoList::updateCurrentTime (this=0xae302074) at kernel/qeventdispatcher_unix.cpp:343
#4  0x02a4f57a in QTimerInfoList::timerWait (this=0xae302074, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#5  0x02a4de23 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xac5060ec) at kernel/qeventdispatcher_glib.cpp:136
#6  0x0563d872 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0x0563dfaf in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x0563e201 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x02a4e8e7 in QEventDispatcherGlib::processEvents (this=0xae300468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#10 0x02a1a50d in QEventLoop::processEvents (this=0xac506270, flags=...) at kernel/qeventloop.cpp:149
#11 0x02a1a7a9 in QEventLoop::exec (this=0xac506270, flags=...) at kernel/qeventloop.cpp:204
#12 0x0290394c in QThread::exec (this=0xa1a0ef0) at thread/qthread.cpp:501
#13 0x02903a3b in QThread::run (this=0xa1a0ef0) at thread/qthread.cpp:568
#14 0x02906de0 in QThreadPrivate::start (arg=0xa1a0ef0) at thread/qthread_unix.cpp:298
#15 0x0895cd4c in start_thread (arg=0xac506b40) at pthread_create.c:308
#16 0x00257d3e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb7780740 (LWP 3215)):
[KCrash Handler]
#7  0x02794182 in operator[] (i=0, this=0xae06308) at /usr/include/qt4/QtCore/qstring.h:701
#8  KShell::tildeExpand (fname=...) at ../../kdecore/util/kshell.cpp:57
#9  0x0267cb1a in KUrl::setPath (this=0xbfbd8b84, _path=...) at ../../kdecore/io/kurl.cpp:1776
#10 0x0051c7fd in KRecentDocument::add (openStr=..., isUrl=false) at ../../kio/kfile/krecentdocument.cpp:162
#11 0x004e0032 in KEncodingFileDialog::getSaveFileNameAndEncoding (encoding=..., dir=..., filter=..., parent=0x55eaff4, caption=...) at ../../kio/kfile/kencodingfiledialog.cpp:184
#12 0x00000001 in ?? ()

Reported using DrKonqi