Application: kwin (4.8.5 (4.8.5))
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-35-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

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

 I open a second file with kate texteditor from console while a first one was already opened previously.

The crash can be reproduced some of the time.

-- 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 0x7f432ec90780 (LWP 9198))]

Thread 3 (Thread 0x7f430bda0700 (LWP 9205)):
#0  0x00007f432e49a023 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f4329c92366 in qt_safe_select (nfds=22, fdread=0x7f4300000ac8, fdwrite=0x7f4300000d60, fdexcept=0x7f4300000ff8, orig_timeout=<optimized out>) at kernel/qcore_unix.cpp:83
#2  0x00007f4329c977b2 in QEventDispatcherUNIXPrivate::doSelect (this=0x7f4300000910, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:223
#3  0x00007f4329c97ca3 in QEventDispatcherUNIX::processEvents (this=0x7f43000008f0, flags=...) at kernel/qeventdispatcher_unix.cpp:926
#4  0x00007f4329c64c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f4329c64ed7 in QEventLoop::exec (this=0x7f430bd9fdd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f4329b63fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f4329c449ff in QInotifyFileSystemWatcherEngine::run (this=0x1035370) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f4329b66fcb in QThreadPrivate::start (arg=0x1035370) at thread/qthread_unix.cpp:298
#9  0x00007f4322d8be9a in start_thread (arg=0x7f430bda0700) at pthread_create.c:308
#10 0x00007f432e4a0cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f430b1fc700 (LWP 9206)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f432af55222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f432af55259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f4322d8be9a in start_thread (arg=0x7f430b1fc700) at pthread_create.c:308
#4  0x00007f432e4a0cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f432ec90780 (LWP 9198)):
[KCrash Handler]
#6  QProcess::setProcessState (this=0x146b7c0, state=QProcess::NotRunning) at io/qprocess.cpp:1770
#7  0x00007f4329bfb74f in QProcessPrivate::cleanup (this=0x146a280) at io/qprocess.cpp:799
#8  0x00007f4329c02cb9 in QProcessPrivate::_q_processDied (this=0x146a280) at io/qprocess.cpp:1058
#9  0x00007f4329c02d7e in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at .moc/release-shared/moc_qprocess.cpp:92
#10 QProcess::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/release-shared/moc_qprocess.cpp:69
#11 0x00007f4329c7a281 in QMetaObject::activate (sender=0x12f2b80, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff2b23aca0) at kernel/qobject.cpp:3547
#12 0x00007f4329cc72fe in QSocketNotifier::activated (this=<optimized out>, _t1=34) at .moc/release-shared/moc_qsocketnotifier.cpp:103
#13 0x00007f4329c8360b in QSocketNotifier::event (this=0x12f2b80, e=0x7fff2b23b310) at kernel/qsocketnotifier.cpp:317
#14 0x00007f4328fe8894 in notify_helper (e=0x7fff2b23b310, receiver=0x12f2b80, this=0xaef4f0) at kernel/qapplication.cpp:4559
#15 QApplicationPrivate::notify_helper (this=0xaef4f0, receiver=0x12f2b80, e=0x7fff2b23b310) at kernel/qapplication.cpp:4531
#16 0x00007f4328fed713 in QApplication::notify (this=0x7fff2b23b850, receiver=0x12f2b80, e=0x7fff2b23b310) at kernel/qapplication.cpp:4420
#17 0x00007f432df7a3f6 in KApplication::notify (this=0x7fff2b23b850, receiver=0x12f2b80, event=0x7fff2b23b310) at ../../kdeui/kernel/kapplication.cpp:311
#18 0x00007f4329c65e9c in QCoreApplication::notifyInternal (this=0x7fff2b23b850, receiver=0x12f2b80, event=0x7fff2b23b310) at kernel/qcoreapplication.cpp:876
#19 0x00007f4329c96692 in sendEvent (event=0x7fff2b23b310, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#20 QEventDispatcherUNIX::activateSocketNotifiers (this=<optimized out>) at kernel/qeventdispatcher_unix.cpp:884
#21 0x00007f4329c978da in QEventDispatcherUNIXPrivate::doSelect (this=0xaef840, flags=..., timeout=0xa9dad0) at kernel/qeventdispatcher_unix.cpp:309
#22 0x00007f4329c97ca3 in QEventDispatcherUNIX::processEvents (this=0xa9dad0, flags=...) at kernel/qeventdispatcher_unix.cpp:926
#23 0x00007f4329091bf8 in QEventDispatcherX11::processEvents (this=0xa9dad0, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#24 0x00007f4329c64c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f4329c64ed7 in QEventLoop::exec (this=0x7fff2b23b790, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007f4329c69f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#27 0x00007f432e7ccc36 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so
#28 0x00007f432e3ce76d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=3, ubp_av=0x7fff2b23bf78, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff2b23bf68) at libc-start.c:226
#29 0x0000000000400661 in _start ()

Possible duplicates by query: bug 306995, bug 302922, bug 301516, bug 300955, bug 295920.

Reported using DrKonqi