Application: plasma-desktop (0.3)
KDE Platform Version: 4.3.90 (KDE 4.3.90 (KDE 4.4 RC1))
Qt Version: 4.6.0
Operating System: Linux 2.6.31-18-generic x86_64
Distribution: Ubuntu 9.10

-- Information about the crash:
I always use Desktop View but I wanted to see how Desktop View looks, so I changed this kind of Activity. I selected an icon and started dragging it. Plasma crashed.

The crash can be reproduced some of the time.

 -- Backtrace:
Application: Espazo de traballo de Plasma (kdeinit4), signal: Segmentation fault
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0x7faf0b164750 (LWP 1771))]

Thread 6 (Thread 0x7faee5538910 (LWP 1772)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007faf0963e67b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x10a8278, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x10a8278, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007faf07dfa3ec in QHostInfoAgent::run (this=0x10a8260) at kernel/qhostinfo.cpp:252
#4  0x00007faf0963d6c5 in QThreadPrivate::start (arg=0x10a8260) at thread/qthread_unix.cpp:244
#5  0x00007faf093aea04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007faf0817980d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7faee470b910 (LWP 1773)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007faf0124c556 in ?? () from /usr/lib/libQtWebKit.so.4
#2  0x00007faf0124c599 in ?? () from /usr/lib/libQtWebKit.so.4
#3  0x00007faf093aea04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007faf0817980d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()
The current source language is "auto; currently asm".

Thread 4 (Thread 0x7faee1a35910 (LWP 1783)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007faefdb26236 in WTF::TCMalloc_PageHeap::scavengerThread (this=0x7faefde05200) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2304
#2  0x00007faefdb26279 in WTF::TCMalloc_PageHeap::runScavengerThread (context=0x7faefde132cc) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1438
#3  0x00007faf093aea04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007faf0817980d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7faed7e80910 (LWP 3677)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:220
#1  0x00007faf0963e5e2 in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x1510dd0, time=30000) at thread/qwaitcondition_unix.cpp:85
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x1510dd0, time=30000) at thread/qwaitcondition_unix.cpp:159
#3  0x00007faf09633989 in QThreadPoolThread::run (this=0x14f6af0) at concurrent/qthreadpool.cpp:140
#4  0x00007faf0963d6c5 in QThreadPrivate::start (arg=0x14f6af0) at thread/qthread_unix.cpp:244
#5  0x00007faf093aea04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007faf0817980d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7faed8aa8910 (LWP 3684)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:220
#1  0x00007faf0963e5e2 in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x1510dd0, time=30000) at thread/qwaitcondition_unix.cpp:85
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x1510dd0, time=30000) at thread/qwaitcondition_unix.cpp:159
#3  0x00007faf09633989 in QThreadPoolThread::run (this=0x14c8d80) at concurrent/qthreadpool.cpp:140
#4  0x00007faf0963d6c5 in QThreadPrivate::start (arg=0x14c8d80) at thread/qthread_unix.cpp:244
#5  0x00007faf093aea04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007faf0817980d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7faf0b164750 (LWP 1771)):
[KCrash Handler]
#5  0x00007faf08eaaed4 in QGraphicsItem::isPanel (this=0xc6ab30) at graphicsview/qgraphicsitem.cpp:1626
#6  0x00007faf08ef5ebc in QGraphicsScene::event (this=0x9326e0, event=0x7fffeecd8580) at graphicsview/qgraphicsscene.cpp:3385
#7  0x00007faf088d6e8c in QApplicationPrivate::notify_helper (this=0x888940, receiver=0x9326e0, e=0x7fffeecd8580) at kernel/qapplication.cpp:4242
#8  0x00007faf088dd48d in QApplication::notify (this=0x871240, receiver=0x9326e0, e=0x7fffeecd8580) at kernel/qapplication.cpp:4125
#9  0x00007faf09c75e16 in KApplication::notify (this=0x871240, receiver=0x9326e0, event=0x7fffeecd8580) at ../../kdeui/kernel/kapplication.cpp:302
#10 0x00007faf0973104c in QCoreApplication::notifyInternal (this=0x871240, receiver=0x9326e0, event=0x7fffeecd8580) at kernel/qcoreapplication.cpp:704
#11 0x00007faf08f0cb98 in QGraphicsView::viewportEvent (this=0x1294280, event=0x7fffeecd8580) at graphicsview/qgraphicsview.cpp:2677
#12 0x00007faf09730467 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x10ab580, event=0x7fffeecd8580) at kernel/qcoreapplication.cpp:819
#13 0x00007faf088d6e5c in QApplicationPrivate::notify_helper (this=0x888940, receiver=0x10ab580, e=0x7fffeecd8580) at kernel/qapplication.cpp:4238
#14 0x00007faf088dd48d in QApplication::notify (this=0x871240, receiver=0x10ab580, e=0x7fffeecd8580) at kernel/qapplication.cpp:4125
#15 0x00007faf09c75e16 in KApplication::notify (this=0x871240, receiver=0x10ab580, event=0x7fffeecd8580) at ../../kdeui/kernel/kapplication.cpp:302
#16 0x00007faf0973104c in QCoreApplication::notifyInternal (this=0x871240, receiver=0x10ab580, event=0x7fffeecd8580) at kernel/qcoreapplication.cpp:704
#17 0x00007faf0892c693 in QCoreApplication::sendEvent (this=<value optimized out>, event=0x7fffeecd8580) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#18 QWidget::event (this=<value optimized out>, event=0x7fffeecd8580) at kernel/qwidget.cpp:8230
#19 0x00007faf08ccfe16 in QFrame::event (this=0x1294280, e=0x7fffeecd8580) at widgets/qframe.cpp:557
#20 0x00007faf08d5a8db in QAbstractScrollArea::event (this=0x1294280, e=0x7fffeecd8580) at widgets/qabstractscrollarea.cpp:985
#21 0x00007faf088d6e8c in QApplicationPrivate::notify_helper (this=0x888940, receiver=0x1294280, e=0x7fffeecd8580) at kernel/qapplication.cpp:4242
#22 0x00007faf088dd48d in QApplication::notify (this=0x871240, receiver=0x1294280, e=0x7fffeecd8580) at kernel/qapplication.cpp:4125
#23 0x00007faf09c75e16 in KApplication::notify (this=0x871240, receiver=0x1294280, event=0x7fffeecd8580) at ../../kdeui/kernel/kapplication.cpp:302
#24 0x00007faf0973104c in QCoreApplication::notifyInternal (this=0x871240, receiver=0x1294280, event=0x7fffeecd8580) at kernel/qcoreapplication.cpp:704
#25 0x00007faf088e06ab in QCoreApplication::sendSpontaneousEvent (act=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#26 QApplication::setActiveWindow (act=<value optimized out>) at kernel/qapplication.cpp:2441
#27 0x00007faf0895a10e in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fffeecd8c50) at kernel/qapplication_x11.cpp:3420
#28 0x00007faf08985712 in x11EventSourceDispatch (s=0x88be30, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#29 0x00007faf04d6ebce in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#30 0x00007faf04d72598 in ?? () from /lib/libglib-2.0.so.0
#31 0x00007faf04d726c0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#32 0x00007faf0975a623 in QEventDispatcherGlib::processEvents (this=0x887ec0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:407
#33 0x00007faf089852fe in QGuiEventDispatcherGlib::processEvents (this=0xc6ab30, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#34 0x00007faf0972f972 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#35 0x00007faf0972fd4c in QEventLoop::exec (this=0x7fffeecd8f80, flags=) at kernel/qeventloop.cpp:201
#36 0x00007faf09733a8b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#37 0x00007faefe0a88a2 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#38 0x0000000000406fb8 in launch (argc=1, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=0, envs=<value optimized out>, reset_env=false, tty=0x0, 
    avoid_loops=false, startup_id_str=0x40a4a1 "0") at ../../kinit/kinit.cpp:706
#39 0x0000000000407c70 in handle_launcher_request (sock=8, who=<value optimized out>) at ../../kinit/kinit.cpp:1198
#40 0x0000000000408121 in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1391
#41 0x0000000000408dea in main (argc=4, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1830
The current source language is "auto; currently c".

Possible duplicates by query: bug 221042.

Reported using DrKonqi