Application: kwin (4.10.00 "release 1")
KDE Platform Version: 4.10.00 "release 1"
Qt Version: 4.8.4
Operating System: Linux 3.7.10-1.1-desktop x86_64
Distribution: "openSUSE 12.3 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
I dragged a window item from the "task list" in the panel, moved the mouse out of the panel into the desktop area and then back to the pager in the panel.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc04e7bd7c0 (LWP 3073))]

Thread 2 (Thread 0x7fc022a54700 (LWP 3086)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fc04a8a0307 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fc04abad660 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007fc04a8a0339 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007fc048f59e0f in start_thread (arg=0x7fc022a54700) at pthread_create.c:308
#4  0x00007fc04dfe77dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7fc04e7bd7c0 (LWP 3073)):
[KCrash Handler]
#6  0x00007fc0492ebceb in QCoreApplicationPrivate::sendThroughApplicationEventFilters (this=0x1d4adc0, receiver=0x399e0b0, event=0x7fffb57bed60) at kernel/qcoreapplication.cpp:1027
#7  0x00007fc0484797e6 in QApplicationPrivate::notify_helper (this=this@entry=0x1d4adc0, receiver=receiver@entry=0x399e0b0, e=e@entry=0x7fffb57bed60) at kernel/qapplication.cpp:4537
#8  0x00007fc04847e693 in QApplication::notify (this=<optimized out>, receiver=0x2979bd0, e=0x7fffb57bed60) at kernel/qapplication.cpp:4348
#9  0x00007fc04dadfcb6 in KApplication::notify (this=0x7fffb57c3310, receiver=0x2979bd0, event=0x7fffb57bed60) at /usr/src/debug/kdelibs-4.10.0/kdeui/kernel/kapplication.cpp:311
#10 0x00007fc0492ebc9e in QCoreApplication::notifyInternal (this=0x7fffb57c3310, receiver=0x2979bd0, event=0x7fffb57bed60) at kernel/qcoreapplication.cpp:946
#11 0x00007fc048500ac7 in sendEvent (event=0x7fffb57bed60, receiver=0x2979bd0) at ../../src/corelib/kernel/qcoreapplication.h:231
#12 handle_xdnd_position (w=0x2979bd0, xe=0x7fffb57bf450, passive=false) at kernel/qdnd_x11.cpp:934
#13 0x00007fc0484f5970 in QApplication::x11ClientMessage (this=<optimized out>, w=0x2979bd0, event=<optimized out>, passive_only=<optimized out>) at kernel/qapplication_x11.cpp:3209
#14 0x00007fc0484f4172 in QApplication::x11ProcessEvent (this=0x7fffb57c3310, event=0x7fffb57bf450) at kernel/qapplication_x11.cpp:3789
#15 0x00007fc04851a9d9 in QEventDispatcherX11::processEvents (this=0x1d4ad50, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#16 0x00007fc0492ea9ef in QEventLoop::processEvents (this=this@entry=0x3f0baf0, flags=...) at kernel/qeventloop.cpp:149
#17 0x00007fc0492eac78 in QEventLoop::exec (this=0x3f0baf0, flags=...) at kernel/qeventloop.cpp:204
#18 0x00007fc048501d26 in QDragManager::drag (this=0x2f3cb60, o=<optimized out>) at kernel/qdnd_x11.cpp:2028
#19 0x00007fc04848ace8 in QDrag::exec (this=0x3200d10, supportedActions=..., defaultDropAction=defaultDropAction@entry=Qt::IgnoreAction) at kernel/qdrag.cpp:284
#20 0x00007fc04848ada3 in QDrag::exec (this=<optimized out>, supportedActions=...) at kernel/qdrag.cpp:239
#21 0x00007fc031b9adf8 in ?? () from /usr/lib64/kde4/kwin3_oxygen.so
#22 0x00007fc031b940b4 in ?? () from /usr/lib64/kde4/kwin3_oxygen.so
#23 0x00007fc0492ebe06 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x399e0b0, event=0x7fffb57bfff0) at kernel/qcoreapplication.cpp:1056
#24 0x00007fc04847983c in QApplicationPrivate::notify_helper (this=this@entry=0x1d4adc0, receiver=receiver@entry=0x399e0b0, e=e@entry=0x7fffb57bfff0) at kernel/qapplication.cpp:4558
#25 0x00007fc04847e54b in QApplication::notify (this=<optimized out>, receiver=0x399e0b0, e=0x7fffb57bfff0) at kernel/qapplication.cpp:4105
#26 0x00007fc04dadfcb6 in KApplication::notify (this=0x7fffb57c3310, receiver=0x399e0b0, event=0x7fffb57bfff0) at /usr/src/debug/kdelibs-4.10.0/kdeui/kernel/kapplication.cpp:311
#27 0x00007fc0492ebc9e in QCoreApplication::notifyInternal (this=0x7fffb57c3310, receiver=0x399e0b0, event=0x7fffb57bfff0) at kernel/qcoreapplication.cpp:946
#28 0x00007fc04847a6ab in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#29 QApplicationPrivate::sendMouseEvent (receiver=0x399e0b0, event=0x7fffb57bfff0, alienWidget=0x0, nativeWidget=0x399e0b0, buttonDown=0x7fc048f4e268 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3173
#30 0x00007fc0484f4e94 in QETWidget::translateMouseEvent (this=this@entry=0x399e0b0, event=event@entry=0x7fffb57c0770) at kernel/qapplication_x11.cpp:4527
#31 0x00007fc0484f3c21 in QApplication::x11ProcessEvent (this=0x7fffb57c3310, event=0x7fffb57c0770) at kernel/qapplication_x11.cpp:3650
#32 0x00007fc04851a9d9 in QEventDispatcherX11::processEvents (this=0x1d4ad50, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#33 0x00007fc0492ea9ef in QEventLoop::processEvents (this=this@entry=0x3039e40, flags=...) at kernel/qeventloop.cpp:149
#34 0x00007fc0492eac78 in QEventLoop::exec (this=0x3039e40, flags=...) at kernel/qeventloop.cpp:204
#35 0x00007fc048501d26 in QDragManager::drag (this=0x2f3cb60, o=<optimized out>) at kernel/qdnd_x11.cpp:2028
#36 0x00007fc04848ace8 in QDrag::exec (this=0x3839620, supportedActions=..., defaultDropAction=defaultDropAction@entry=Qt::IgnoreAction) at kernel/qdrag.cpp:284
#37 0x00007fc04848ada3 in QDrag::exec (this=<optimized out>, supportedActions=...) at kernel/qdrag.cpp:239
#38 0x00007fc031b9adf8 in ?? () from /usr/lib64/kde4/kwin3_oxygen.so
#39 0x00007fc031b940b4 in ?? () from /usr/lib64/kde4/kwin3_oxygen.so
#40 0x00007fc0492ebe06 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x295e9d0, event=0x7fffb57c1310) at kernel/qcoreapplication.cpp:1056
#41 0x00007fc04847983c in QApplicationPrivate::notify_helper (this=this@entry=0x1d4adc0, receiver=receiver@entry=0x295e9d0, e=e@entry=0x7fffb57c1310) at kernel/qapplication.cpp:4558
#42 0x00007fc04847e54b in QApplication::notify (this=<optimized out>, receiver=0x295e9d0, e=0x7fffb57c1310) at kernel/qapplication.cpp:4105
#43 0x00007fc04dadfcb6 in KApplication::notify (this=0x7fffb57c3310, receiver=0x295e9d0, event=0x7fffb57c1310) at /usr/src/debug/kdelibs-4.10.0/kdeui/kernel/kapplication.cpp:311
#44 0x00007fc0492ebc9e in QCoreApplication::notifyInternal (this=0x7fffb57c3310, receiver=0x295e9d0, event=0x7fffb57c1310) at kernel/qcoreapplication.cpp:946
#45 0x00007fc04847a6ab in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#46 QApplicationPrivate::sendMouseEvent (receiver=0x295e9d0, event=0x7fffb57c1310, alienWidget=0x0, nativeWidget=0x295e9d0, buttonDown=0x7fc048f4e268 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3173
#47 0x00007fc0484f4e94 in QETWidget::translateMouseEvent (this=this@entry=0x295e9d0, event=event@entry=0x7fffb57c1a90) at kernel/qapplication_x11.cpp:4527
#48 0x00007fc0484f3c21 in QApplication::x11ProcessEvent (this=0x7fffb57c3310, event=0x7fffb57c1a90) at kernel/qapplication_x11.cpp:3650
#49 0x00007fc04851a9d9 in QEventDispatcherX11::processEvents (this=0x1d4ad50, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#50 0x00007fc0492ea9ef in QEventLoop::processEvents (this=this@entry=0x25ec780, flags=...) at kernel/qeventloop.cpp:149
#51 0x00007fc0492eac78 in QEventLoop::exec (this=0x25ec780, flags=...) at kernel/qeventloop.cpp:204
#52 0x00007fc048501d26 in QDragManager::drag (this=0x2f3cb60, o=<optimized out>) at kernel/qdnd_x11.cpp:2028
#53 0x00007fc04848ace8 in QDrag::exec (this=0x378d560, supportedActions=..., defaultDropAction=defaultDropAction@entry=Qt::IgnoreAction) at kernel/qdrag.cpp:284
#54 0x00007fc04848ada3 in QDrag::exec (this=<optimized out>, supportedActions=...) at kernel/qdrag.cpp:239
#55 0x00007fc031b9adf8 in ?? () from /usr/lib64/kde4/kwin3_oxygen.so
#56 0x00007fc031b940b4 in ?? () from /usr/lib64/kde4/kwin3_oxygen.so
#57 0x00007fc0492ebe06 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x31b7ad0, event=0x7fffb57c2630) at kernel/qcoreapplication.cpp:1056
#58 0x00007fc04847983c in QApplicationPrivate::notify_helper (this=this@entry=0x1d4adc0, receiver=receiver@entry=0x31b7ad0, e=e@entry=0x7fffb57c2630) at kernel/qapplication.cpp:4558
#59 0x00007fc04847e54b in QApplication::notify (this=<optimized out>, receiver=0x31b7ad0, e=0x7fffb57c2630) at kernel/qapplication.cpp:4105
#60 0x00007fc04dadfcb6 in KApplication::notify (this=0x7fffb57c3310, receiver=0x31b7ad0, event=0x7fffb57c2630) at /usr/src/debug/kdelibs-4.10.0/kdeui/kernel/kapplication.cpp:311
#61 0x00007fc0492ebc9e in QCoreApplication::notifyInternal (this=0x7fffb57c3310, receiver=0x31b7ad0, event=0x7fffb57c2630) at kernel/qcoreapplication.cpp:946
#62 0x00007fc04847a6ab in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#63 QApplicationPrivate::sendMouseEvent (receiver=0x31b7ad0, event=0x7fffb57c2630, alienWidget=0x0, nativeWidget=0x31b7ad0, buttonDown=0x7fc048f4e268 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3173
#64 0x00007fc0484f4e94 in QETWidget::translateMouseEvent (this=this@entry=0x31b7ad0, event=event@entry=0x7fffb57c2db0) at kernel/qapplication_x11.cpp:4527
#65 0x00007fc0484f3c21 in QApplication::x11ProcessEvent (this=0x7fffb57c3310, event=0x7fffb57c2db0) at kernel/qapplication_x11.cpp:3650
#66 0x00007fc04851a9d9 in QEventDispatcherX11::processEvents (this=0x1d4ad50, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#67 0x00007fc0492ea9ef in QEventLoop::processEvents (this=this@entry=0x7fffb57c3020, flags=...) at kernel/qeventloop.cpp:149
#68 0x00007fc0492eac78 in QEventLoop::exec (this=0x7fffb57c3020, flags=...) at kernel/qeventloop.cpp:204
#69 0x00007fc0492ef918 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#70 0x00007fc04e31697a in kdemain () from /usr/lib64/libkdeinit4_kwin.so
#71 0x00007fc04df20a15 in __libc_start_main (main=0x400730, argc=3, ubp_av=0x7fffb57c3458, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffb57c3448) at libc-start.c:258
#72 0x0000000000400761 in _start ()

Possible duplicates by query: bug 305544, bug 305493, bug 297152, bug 265622, bug 261776.

Reported using DrKonqi