Application: kwin (4.10.2)
KDE Platform Version: 4.10.2
Qt Version: 4.8.4
Operating System: Linux 3.8.0-19-generic x86_64
Distribution: Ubuntu 13.04

-- Information about the crash:
Just upgraded to Kubuntu 13.04, checking out the available Window Decorations for a new look. Was on Oxygen before the upgrade, same after the upgrade. Tried changing from Oxygen to Plastik, it changed and updated what I see... then got a message there was a crash.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f50b97747c0 (LWP 3248))]

Thread 5 (Thread 0x7f509c8a7700 (LWP 3251)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f50b5834e77 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f50b5834ea9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f50acaf7f8e in start_thread (arg=0x7f509c8a7700) at pthread_create.c:311
#4  0x00007f50b8f91e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7f5096b47700 (LWP 3254)):
#0  0x00007f50b8f8a233 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f50b436c4f3 in qt_safe_select (nfds=16, fdread=0x7f5090000ac8, fdwrite=0x7f5090000d60, fdexcept=0x7f5090000ff8, orig_timeout=0x0) at kernel/qcore_unix.cpp:83
#2  0x00007f50b4371499 in QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7f5090000910, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:223
#3  0x00007f50b4371c82 in QEventDispatcherUNIX::processEvents (this=0x7f50900008f0, flags=...) at kernel/qeventdispatcher_unix.cpp:937
#4  0x00007f50b433f38f in QEventLoop::processEvents (this=this@entry=0x7f5096b46d90, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f50b433f618 in QEventLoop::exec (this=this@entry=0x7f5096b46d90, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f50b4241410 in QThread::exec (this=this@entry=0xe5f770) at thread/qthread.cpp:542
#7  0x00007f50b4320edf in QInotifyFileSystemWatcherEngine::run (this=0xe5f770) at io/qfilesystemwatcher_inotify.cpp:256
#8  0x00007f50b4243bec in QThreadPrivate::start (arg=0xe5f770) at thread/qthread_unix.cpp:338
#9  0x00007f50acaf7f8e in start_thread (arg=0x7f5096b47700) at pthread_create.c:311
#10 0x00007f50b8f91e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f50862f7700 (LWP 3259)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f50949e418b in pipe_semaphore_wait (sema=0x11b26b0) at ../../../../../../../src/gallium/auxiliary/os/os_thread.h:433
#2  radeon_drm_cs_emit_ioctl (param=0x11b24d0) at radeon_drm_winsys.c:518
#3  0x00007f50acaf7f8e in start_thread (arg=0x7f50862f7700) at pthread_create.c:311
#4  0x00007f50b8f91e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f5095c17700 (LWP 4702)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f50b42440a7 in wait (time=30000, this=0xb34700) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=<optimized out>, mutex=0xb34678, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f50b423764f in QThreadPoolThread::run (this=0xba2390) at concurrent/qthreadpool.cpp:141
#4  0x00007f50b4243bec in QThreadPrivate::start (arg=0xba2390) at thread/qthread_unix.cpp:338
#5  0x00007f50acaf7f8e in start_thread (arg=0x7f5095c17700) at pthread_create.c:311
#6  0x00007f50b8f91e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f50b97747c0 (LWP 3248)):
[KCrash Handler]
#6  0x00007f50b7efe944 in QDeclarativeItem::~QDeclarativeItem (this=0x1334d40, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007f50b7ec310e in ~QDeclarativeElement (this=0x1334d40, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<QDeclarativeItem>::~QDeclarativeElement (this=0x1334d40, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#9  0x00007f50b435a5e8 in QObject::event (this=0x1334d40, e=<optimized out>) at kernel/qobject.cpp:1175
#10 0x00007f50b36e38ec in QApplicationPrivate::notify_helper (this=this@entry=0xa2a4c0, receiver=receiver@entry=0x1334d40, e=e@entry=0xce8ce0) at kernel/qapplication.cpp:4567
#11 0x00007f50b36e625b in QApplication::notify (this=this@entry=0x7fff8db8d5d0, receiver=receiver@entry=0x1334d40, e=e@entry=0xce8ce0) at kernel/qapplication.cpp:4428
#12 0x00007f50b8a7baf6 in KApplication::notify (this=0x7fff8db8d5d0, receiver=0x1334d40, event=0xce8ce0) at ../../kdeui/kernel/kapplication.cpp:311
#13 0x00007f50b434063e in QCoreApplication::notifyInternal (this=0x7fff8db8d5d0, receiver=receiver@entry=0x1334d40, event=event@entry=0xce8ce0) at kernel/qcoreapplication.cpp:946
#14 0x00007f50b4344171 in sendEvent (event=0xce8ce0, receiver=0x1334d40) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x9c31f0) at kernel/qcoreapplication.cpp:1570
#16 0x00007f50b43444a3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#17 0x00007f50b37899fc in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#18 QEventDispatcherX11::processEvents (this=0x9c4ad0, flags=...) at kernel/qeventdispatcher_x11.cpp:75
#19 0x00007f50b433f38f in QEventLoop::processEvents (this=this@entry=0x7fff8db8d2e0, flags=...) at kernel/qeventloop.cpp:149
#20 0x00007f50b433f618 in QEventLoop::exec (this=this@entry=0x7fff8db8d2e0, flags=...) at kernel/qeventloop.cpp:204
#21 0x00007f50b4344cf6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#22 0x00007f50b36e1ffc in QApplication::exec () at kernel/qapplication.cpp:3828
#23 0x00007f50b92c802a in kdemain (argc=3, argv=0x7fff8db8d718) at ../../kwin/main.cpp:537
#24 0x00007f50b8eb9ea5 in __libc_start_main (main=0x4006d0 <main(int, char**)>, argc=3, ubp_av=0x7fff8db8d718, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff8db8d708) at libc-start.c:260
#25 0x0000000000400701 in _start ()

This bug may be a duplicate of or related to bug 311018.

Possible duplicates by query: bug 317409, bug 316152, bug 316001, bug 315087, bug 314891.

Reported using DrKonqi