Application: kwin (4.11.00)
KDE Platform Version: 4.11.00
Qt Version: 4.8.2
Operating System: Linux 3.2.0-51-generic x86_64
Distribution: Ubuntu 12.04.2 LTS

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

I am running KDE4.11 on Kubuntu 12.04

-- 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 0x7fb2dc2737c0 (LWP 5249))]

Thread 2 (Thread 0x7fb2b73fc700 (LWP 5252)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fb2dad55022 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fb2dad55059 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fb2d3f07e9a in start_thread (arg=0x7fb2b73fc700) at pthread_create.c:308
#4  0x00007fb2dbb5dccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fb2dc2737c0 (LWP 5249)):
[KCrash Handler]
#6  0x00007fb2dc1d6497 in _dl_lookup_symbol_x (undef_name=0x7fb2db862cee "create_factory", undef_map=0x81, ref=0x7fff1f2bba70, symbol_scope=0x409, version=0x0, type_class=0, flags=2, skip_map=0x0) at dl-lookup.c:733
#7  0x00007fb2dbb9a9fa in do_sym (handle=<optimized out>, name=0x7fb2db862cee "create_factory", who=<optimized out>, vers=<optimized out>, flags=2) at dl-sym.c:178
#8  0x00007fb2cf840044 in dlsym_doit (a=0x7fff1f2bbc40) at dlsym.c:51
#9  0x00007fb2dc1db176 in _dl_catch_error (objname=0x13d3320, errstring=0x13d3328, mallocedp=0x13d3318, operate=0x7fb2cf840030 <dlsym_doit>, args=0x7fff1f2bbc40) at dl-error.c:178
#10 0x00007fb2cf84052f in _dlerror_run (operate=0x7fb2cf840030 <dlsym_doit>, args=0x7fff1f2bbc40) at dlerror.c:164
#11 0x00007fb2cf84009a in __dlsym (handle=<optimized out>, name=<optimized out>) at dlsym.c:71
#12 0x00007fb2d674ba24 in QLibraryPrivate::resolve_sys (this=0x15ca7f8, symbol=0x7fb2db862cee "create_factory") at plugin/qlibrary_unix.cpp:292
#13 0x00007fb2d6f4bd69 in KLibrary::resolveFunction (this=<optimized out>, symname=<optimized out>) at ../../kdecore/util/klibrary.cpp:183
#14 0x00007fb2db85c775 in KDecorationPlugins::loadPlugin (this=0x15c9a80, nameStr=...) at ../../../kwin/libkdecorations/kdecoration_plugins_p.cpp:232
#15 0x00007fb2db85cdd8 in KDecorationPlugins::reset (this=<optimized out>, changed=0) at ../../../kwin/libkdecorations/kdecoration_plugins_p.cpp:78
#16 0x00007fb2dbe7be52 in KWin::Workspace::slotReconfigure (this=0x15aaab0) at ../../kwin/workspace.cpp:798
#17 0x00007fb2d676e781 in QMetaObject::activate (sender=0x15aabe0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#18 0x00007fb2d6773679 in QObject::event (this=0x15aabe0, e=<optimized out>) at kernel/qobject.cpp:1157
#19 0x00007fb2d5adb7b4 in notify_helper (e=0x7fff1f2bc7b0, receiver=0x15aabe0, this=0x1414b20) at kernel/qapplication.cpp:4556
#20 QApplicationPrivate::notify_helper (this=0x1414b20, receiver=0x15aabe0, e=0x7fff1f2bc7b0) at kernel/qapplication.cpp:4528
#21 0x00007fb2d5ae0583 in QApplication::notify (this=0x7fff1f2bcb90, receiver=0x15aabe0, e=0x7fff1f2bc7b0) at kernel/qapplication.cpp:4417
#22 0x00007fb2da79cd96 in KApplication::notify (this=0x7fff1f2bcb90, receiver=0x15aabe0, event=0x7fff1f2bc7b0) at ../../kdeui/kernel/kapplication.cpp:311
#23 0x00007fb2d675a32c in QCoreApplication::notifyInternal (this=0x7fff1f2bcb90, receiver=0x15aabe0, event=0x7fff1f2bc7b0) at kernel/qcoreapplication.cpp:915
#24 0x00007fb2d678b6f2 in sendEvent (event=0x7fff1f2bc7b0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#25 QTimerInfoList::activateTimers (this=0x1415728) at kernel/qeventdispatcher_unix.cpp:611
#26 0x00007fb2d678c1b4 in QEventDispatcherUNIX::processEvents (this=0x13adad0, flags=...) at kernel/qeventdispatcher_unix.cpp:930
#27 0x00007fb2d5b84b78 in QEventDispatcherX11::processEvents (this=0x13adad0, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#28 0x00007fb2d6758e62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#29 0x00007fb2d67590b7 in QEventLoop::exec (this=0x7fff1f2bcb10, flags=...) at kernel/qeventloop.cpp:204
#30 0x00007fb2d675e407 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#31 0x00007fb2dbea4621 in kdemain (argc=2, argv=<optimized out>) at ../../kwin/main.cpp:589
#32 0x00007fb2dba8b76d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=2, ubp_av=0x7fff1f2bd298, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff1f2bd288) at libc-start.c:226
#33 0x0000000000400671 in _start ()

Possible duplicates by query: bug 322349, bug 321301.

Reported using DrKonqi