Application: krunner (0.1)
KDE Platform Version: 4.6.4 (4.6.4)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-10-generic x86_64
Distribution: Ubuntu 11.04

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

Just before krunner crashed the system was on very high load (as an follow-up of bug #265510). At last it was impossible to watch a DVD - usually a no-brainer for a hexacore system with 12 GB RAM... So I tried to renice in order to avoid killing the nepomuk backup.

A bit after this KRunner crashed.


- Unusual behavior I noticed:

KRunner was restarted automatically and fully blocked 3 cpu cores ("300% cpu usage") untill I killed it.

-- Backtrace:
Application: Oberfläche zur Ausführung von Befehlen (krunner), signal: Segmentation fault
[Current thread is 1 (Thread 0x7faf8448e7a0 (LWP 2009))]

Thread 4 (Thread 0x7faf6c5c4700 (LWP 2029)):
#0  0x00007faf83db1f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007faf7976e104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faf7976e639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faf80879446 in QEventDispatcherGlib::processEvents (this=0x7faf640008b0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007faf8084d882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007faf8084dabc in QEventLoop::exec (this=0x7faf6c5c3db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007faf80764924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007faf8082fc2f in QInotifyFileSystemWatcherEngine::run (this=0x13aee90) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007faf80767175 in QThreadPrivate::start (arg=0x13aee90) at thread/qthread_unix.cpp:320
#9  0x00007faf79c39d8c in start_thread (arg=0x7faf6c5c4700) at pthread_create.c:304
#10 0x00007faf83dbf04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7faf5ca8a700 (LWP 6931)):
#0  0x00007faf83db1f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007faf7976e104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faf7976e639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faf80879446 in QEventDispatcherGlib::processEvents (this=0x1bff060, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007faf8084d882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007faf8084dabc in QEventLoop::exec (this=0x7faf5ca89db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007faf80764924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007faf8082fc2f in QInotifyFileSystemWatcherEngine::run (this=0x190bd50) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007faf80767175 in QThreadPrivate::start (arg=0x190bd50) at thread/qthread_unix.cpp:320
#9  0x00007faf79c39d8c in start_thread (arg=0x7faf5ca8a700) at pthread_create.c:304
#10 0x00007faf83dbf04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7faf5b2e7700 (LWP 6943)):
#0  0x00007faf83db1f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007faf7976e104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faf7976e9f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faf5b9d9c44 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007faf797953e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007faf79c39d8c in start_thread (arg=0x7faf5b2e7700) at pthread_create.c:304
#6  0x00007faf83dbf04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7faf8448e7a0 (LWP 2009)):
[KCrash Handler]
#6  parent (this=0x1a11a20) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:250
#7  parentWidget (this=0x1a11a20) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:1022
#8  QWidget::window (this=0x1a11a20) at kernel/qwidget.cpp:4252
#9  0x00007faf82668da4 in KSysGuardProcessList::reniceProcesses (this=0x1a11a20, pids=..., niceValue=-19) at ../../../../libs/ksysguard/processui/ksysguardprocesslist.cpp:1003
#10 0x00007faf8266a4ee in KSysGuardProcessList::reniceSelectedProcesses (this=0x1a11a20) at ../../../../libs/ksysguard/processui/ksysguardprocesslist.cpp:1136
#11 0x00007faf8266a9e8 in KSysGuardProcessList::actionTriggered (this=0x1a11a20, object=0x17be230) at ../../../../libs/ksysguard/processui/ksysguardprocesslist.cpp:503
#12 0x00007faf8266abfd in KSysGuardProcessList::qt_metacall (this=0x1a11a20, _c=QMetaObject::InvokeMetaMethod, _id=24, _a=0x7fff58499c30) at ./ksysguardprocesslist.moc:181
#13 0x00007faf808635f8 in QMetaObject::activate (sender=0x1a3be90, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fff58499c30) at kernel/qobject.cpp:3287
#14 0x00007faf80867442 in QSignalMapper::mapped (this=<value optimized out>, _t1=0x17be230) at .moc/release-shared/moc_qsignalmapper.cpp:122
#15 0x00007faf8086755a in QSignalMapper::map (this=0x1a3be90, sender=0x17be230) at kernel/qsignalmapper.cpp:272
#16 0x00007faf80867ba0 in QSignalMapper::qt_metacall (this=0x1a3be90, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0x7fff58499d80) at .moc/release-shared/moc_qsignalmapper.cpp:87
#17 0x00007faf808635f8 in QMetaObject::activate (sender=0x17be230, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fff58499d80) at kernel/qobject.cpp:3287
#18 0x00007faf81207112 in QAction::triggered (this=<value optimized out>, _t1=false) at .moc/release-shared/moc_qaction.cpp:263
#19 0x00007faf812072ff in QAction::activate (this=0x17be230, event=<value optimized out>) at kernel/qaction.cpp:1257
#20 0x00007faf81649303 in QMenuPrivate::activateCausedStack (this=0x1a297b0, causedStack=..., action=0x17be230, action_e=QAction::Trigger, self=true) at widgets/qmenu.cpp:993
#21 0x00007faf8164f2ba in QMenuPrivate::activateAction (this=0x1a297b0, action=0x17be230, action_e=QAction::Trigger, self=true) at widgets/qmenu.cpp:1085
#22 0x00007faf8125ecb8 in QWidget::event (this=0x19ea4f0, event=0x7fff5849a810) at kernel/qwidget.cpp:8259
#23 0x00007faf8165049b in QMenu::event (this=0x19ea4f0, e=0x7fff5849a810) at widgets/qmenu.cpp:2415
#24 0x00007faf8120d9e4 in QApplicationPrivate::notify_helper (this=0x12f8cb0, receiver=0x19ea4f0, e=0x7fff5849a810) at kernel/qapplication.cpp:4462
#25 0x00007faf81212db3 in QApplication::notify (this=<value optimized out>, receiver=0x19ea4f0, e=0x7fff5849a810) at kernel/qapplication.cpp:4023
#26 0x00007faf82d0e716 in KApplication::notify (this=0x12f2e20, receiver=0x19ea4f0, event=0x7fff5849a810) at ../../kdeui/kernel/kapplication.cpp:311
#27 0x00007faf8084e49c in QCoreApplication::notifyInternal (this=0x12f2e20, receiver=0x19ea4f0, event=0x7fff5849a810) at kernel/qcoreapplication.cpp:731
#28 0x00007faf8120ea0d in sendEvent (receiver=0x19ea4f0, event=0x7fff5849a810, alienWidget=0x0, nativeWidget=0x19ea4f0, buttonDown=0x7faf81cee218, lastMouseReceiver=..., spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#29 QApplicationPrivate::sendMouseEvent (receiver=0x19ea4f0, event=0x7fff5849a810, alienWidget=0x0, nativeWidget=0x19ea4f0, buttonDown=0x7faf81cee218, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3122
#30 0x00007faf8128e854 in QETWidget::translateMouseEvent (this=0x19ea4f0, event=<value optimized out>) at kernel/qapplication_x11.cpp:4490
#31 0x00007faf8128d04a in QApplication::x11ProcessEvent (this=0x12f2e20, event=0x7fff5849b160) at kernel/qapplication_x11.cpp:3678
#32 0x00007faf812b5162 in x11EventSourceDispatch (s=0x12fefb0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#33 0x00007faf7976dbcd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007faf7976e3a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007faf7976e639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007faf808793ef in QEventDispatcherGlib::processEvents (this=0x129e340, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#37 0x00007faf812b4dfe in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#38 0x00007faf8084d882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#39 0x00007faf8084dabc in QEventLoop::exec (this=0x7fff5849b460, flags=...) at kernel/qeventloop.cpp:201
#40 0x00007faf80851ecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#41 0x00007faf84097ed7 in kdemain (argc=1, argv=0x7fff5849b708) at ../../krunner/main.cpp:66
#42 0x00007faf83cf7eff in __libc_start_main (main=0x400740 <main(int, char**)>, argc=1, ubp_av=0x7fff5849b708, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff5849b6f8) at libc-start.c:226
#43 0x0000000000400669 in _start ()

Reported using DrKonqi