Application: kwin (4.6.2 (4.6.2))
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.35.12-88.fc14.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:
when i opened ark most of the times kwin crashed before opening the ark

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f9b3f8bd840 (LWP 2391))]

Thread 2 (Thread 0x7f9b2afc2700 (LWP 2398)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00000038b8f92bb4 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x38b92aad80) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00000038b8f92be9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x38b92b8e54) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x0000003fa3406ccb in start_thread (arg=0x7f9b2afc2700) at pthread_create.c:301
#4  0x0000003fa2ce0c2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f9b3f8bd840 (LWP 2391)):
[KCrash Handler]
#6  0x00000038bdb36142 in Plasma::Corona::popupPosition (this=0x2193c40, item=0x21b7420, s=..., alignment=<value optimized out>) at /usr/src/debug/kdelibs-4.6.2/plasma/corona.cpp:858
#7  0x00000038bdbd30a4 in Plasma::ToolTipManagerPrivate::showToolTip (this=0x193f1e0) at /usr/src/debug/kdelibs-4.6.2/plasma/tooltipmanager.cpp:399
#8  0x00000038bdbd3445 in Plasma::ToolTipManager::qt_metacall (this=0x1bf3360, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff6827e4f0) at /usr/src/debug/kdelibs-4.6.2/x86_64-redhat-linux-gnu/plasma/tooltipmanager.moc:88
#9  0x00000038af971acf in QMetaObject::activate (sender=0x1bf3540, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3278
#10 0x00000038af9712f9 in QObject::event (this=0x1bf3540, e=<value optimized out>) at kernel/qobject.cpp:1181
#11 0x00000038b11b7cd4 in QApplicationPrivate::notify_helper (this=0xd02cb0, receiver=0x1bf3540, e=0x7fff6827ec30) at kernel/qapplication.cpp:4462
#12 0x00000038b11bc88a in QApplication::notify (this=<value optimized out>, receiver=0x1bf3540, e=0x7fff6827ec30) at kernel/qapplication.cpp:4341
#13 0x00000038b2c3ff96 in KApplication::notify (this=0x7fff6827f090, receiver=0x1bf3540, event=0x7fff6827ec30) at /usr/src/debug/kdelibs-4.6.2/kdeui/kernel/kapplication.cpp:311
#14 0x00000038af95d19c in QCoreApplication::notifyInternal (this=0x7fff6827f090, receiver=0x1bf3540, event=0x7fff6827ec30) at kernel/qcoreapplication.cpp:731
#15 0x00000038af98aeae in sendEvent (this=0xd036c0) at kernel/qcoreapplication.h:215
#16 QTimerInfoList::activateTimers (this=0xd036c0) at kernel/qeventdispatcher_unix.cpp:604
#17 0x00000038af98aff0 in QEventDispatcherUNIX::processEvents (this=0xcd6db0, flags=...) at kernel/qeventdispatcher_unix.cpp:923
#18 0x00000038b125e15c in QEventDispatcherX11::processEvents (this=0xcd6db0, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#19 0x00000038af95c532 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#20 0x00000038af95c77c in QEventLoop::exec (this=0x7fff6827ef80, flags=...) at kernel/qeventloop.cpp:201
#21 0x00000038af960c3b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#22 0x00000038b7c5959a in kdemain (argc=<value optimized out>, argv=0x7fff6827f0f0) at /usr/src/debug/kdebase-workspace-4.6.2/kwin/main.cpp:542
#23 0x0000003fa2c1ee5d in __libc_start_main (main=0x400910 <main(int, char**)>, argc=1, ubp_av=0x7fff6827f728, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff6827f718) at libc-start.c:226
#24 0x0000000000400839 in _start ()

Possible duplicates by query: bug 270051, bug 267726, bug 264649.

Reported using DrKonqi