Application: kwin (4.8.2 (4.8.2))
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-24-generic-pae i686
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:
Login via x11 over ssh with Xming.

- Unusual behavior I noticed:
Systemtray crashed and dissapeared then restarted.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb7750740 (LWP 2158))]

Thread 2 (Thread 0xb61c5b40 (LWP 2184)):
#0  0x00ed2416 in __kernel_vsyscall ()
#1  0x07f4d96b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x0035c3dc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x0244e029 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0x0244e06f in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0x07f49d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0x0034eace in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb7750740 (LWP 2158)):
[KCrash Handler]
#7  0x002dc1d6 in free () from /lib/i386-linux-gnu/libc.so.6
#8  0x014c7f9b in XFree (data=0x1) at ../../src/XlibInt.c:1701
#9  0x00485c76 in XRRUpdateConfiguration (event=0xbf9a463c) at ../../src/Xrandr.c:446
#10 0x0016f3b7 in KWin::Workspace::workspaceEvent (this=0x83526a0, e=0xbf9a463c) at ../../kwin/events.cpp:460
#11 0x0015f632 in KWin::Application::x11EventFilter (this=0xbf9a4888, e=0xbf9a463c) at ../../kwin/main.cpp:359
#12 0x06946534 in qt_x11EventFilter (ev=0xbf9a463c) at kernel/qapplication_x11.cpp:441
#13 qt_x11EventFilter (ev=0xbf9a463c) at kernel/qapplication_x11.cpp:429
#14 0x06956207 in QApplication::x11ProcessEvent (this=0xbf9a4888, event=0xbf9a463c) at kernel/qapplication_x11.cpp:3444
#15 0x06984a88 in QEventDispatcherX11::processEvents (this=0x824be88, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#16 0x0499c50d in QEventLoop::processEvents (this=0xbf9a47c4, flags=...) at kernel/qeventloop.cpp:149
#17 0x0499c7a9 in QEventLoop::exec (this=0xbf9a47c4, flags=...) at kernel/qeventloop.cpp:204
#18 0x049a1eba in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#19 0x068c8a74 in QApplication::exec () at kernel/qapplication.cpp:3820
#20 0x001625b5 in kdemain (argc=3, argv=0xbf9a4b34) at ../../kwin/main.cpp:541
#21 0x0804850b in main (argc=3, argv=0xbf9a4b34) at kwin_dummy.cpp:3

Possible duplicates by query: bug 298845, bug 298370, bug 298304, bug 293648, bug 293209.

Reported using DrKonqi