Application: kwin (4.9.5)
KDE Platform Version: 4.9.5
Qt Version: 4.8.3
Operating System: Linux 3.5.0-26-generic i686
Distribution: Ubuntu 12.10

-- Information about the crash:
- What I was doing when the application crashed:
trying to configure external display (left of laptop display, 90 degree rotation)
- Unusual behavior I noticed:

-- 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 0xb1ce1980 (LWP 3522))]

Thread 3 (Thread 0xaedffb40 (LWP 3524)):
#0  0xb7735424 in __kernel_vsyscall ()
#1  0xb2c8d96b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb751964c in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb66711cd in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb66711ff in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb2c89d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb750bd3e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xaf7e8b40 (LWP 3831)):
#0  0xb2ccfdcd in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb5f04fb5 in do_gettime (frac=0xaf7e7fb0, sec=0xaf7e7fa8) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb5fec36e in QTimerInfoList::updateCurrentTime (this=0xaee00b34) at kernel/qeventdispatcher_unix.cpp:343
#4  0xaf7e819c in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 1 (Thread 0xb1ce1980 (LWP 3522)):
[KCrash Handler]
#7  brw_update_renderbuffer_surface (brw=0x94cabb8, rb=0x94af3b0, unit=0) at brw_wm_surface_state.c:1109
#8  0xad68a033 in brw_update_renderbuffer_surfaces (brw=0x94cabb8) at brw_wm_surface_state.c:1205
#9  0xad673625 in brw_upload_state (brw=brw@entry=0x94cabb8) at brw_state_upload.c:498
#10 0xad65f81f in brw_try_draw_prims (max_index=47, min_index=0, ib=0x0, nr_prims=1, prim=0xbfc26010, arrays=0x94cabb8, ctx=0x94cabb8) at brw_draw.c:493
#11 brw_draw_prims (ctx=0x94cabb8, prim=0xbfc26010, nr_prims=1, ib=0x0, index_bounds_valid=1 '\001', min_index=0, max_index=47, tfb_vertcount=0x0) at brw_draw.c:589
#12 0xad3cfe82 in vbo_draw_arrays (ctx=ctx@entry=0x94cabb8, mode=mode@entry=4, start=start@entry=0, count=count@entry=48, numInstances=numInstances@entry=1, baseInstance=baseInstance@entry=0) at ../../../../../src/mesa/vbo/vbo_exec_array.c:645
#13 0xad3cff6d in vbo_exec_DrawArrays (mode=4, start=0, count=48) at ../../../../../src/mesa/vbo/vbo_exec_array.c:675
#14 0xb64d66c6 in KWin::GLVertexBufferPrivate::corePainting (this=0x94b2000, region=..., primitiveMode=4, hardwareClipping=false) at ../../../kwin/libkwineffects/kwinglutils.cpp:1218
#15 0xb64d698d in KWin::GLVertexBuffer::render (this=this@entry=0x9420460, region=..., primitiveMode=primitiveMode@entry=4, hardwareClipping=hardwareClipping@entry=false) at ../../../kwin/libkwineffects/kwinglutils.cpp:1341
#16 0xb64d6a42 in KWin::GLVertexBuffer::render (this=0x9420460, primitiveMode=4) at ../../../kwin/libkwineffects/kwinglutils.cpp:1333
#17 0xb76a929e in KWin::SceneOpenGL::paintBackground (this=this@entry=0x94af960, region=...) at ../../kwin/scene_opengl.cpp:210
#18 0xb76948d6 in KWin::Scene::paintSimpleScreen (this=this@entry=0x94af960, orig_mask=orig_mask@entry=8, region=...) at ../../kwin/scene.cpp:323
#19 0xb76920c7 in KWin::Scene::finalPaintScreen (this=0x94af960, mask=8, region=..., data=...) at ../../kwin/scene.cpp:192
#20 0xb76b6208 in KWin::EffectsHandlerImpl::paintScreen (this=0x96fb218, mask=mask@entry=8, region=..., data=...) at ../../kwin/effects.cpp:246
#21 0xb69269ea in KWin::Effect::paintScreen (this=0xa7fb638, mask=8, region=..., data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#22 0xb76b61ab in KWin::EffectsHandlerImpl::paintScreen (this=0x96fb218, mask=mask@entry=8, region=..., data=...) at ../../kwin/effects.cpp:243
#23 0xb69269ea in KWin::Effect::paintScreen (this=0x9868d80, mask=8, region=..., data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#24 0xb76b61ab in KWin::EffectsHandlerImpl::paintScreen (this=0x96fb218, mask=8, region=..., data=...) at ../../kwin/effects.cpp:243
#25 0xb76939b5 in KWin::Scene::paintScreen (this=0x94af960, mask=0xbfc265ec, region=0xbfc26658) at ../../kwin/scene.cpp:146
#26 0xb76aae79 in KWin::SceneOpenGL::paint (this=0x94af960, damage=..., toplevels=...) at ../../kwin/scene_opengl_glx.cpp:499
#27 0xb768c6c6 in KWin::Workspace::performCompositing (this=0x93cb180) at ../../kwin/composite.cpp:443
#28 0xb5fcfd34 in QObject::event (this=0x93cb180, e=0xbfc26b50) at kernel/qobject.cpp:1157
#29 0xb54aa39c in QApplicationPrivate::notify_helper (this=0x933bbc0, receiver=0x93cb180, e=0xbfc26b50) at kernel/qapplication.cpp:4562
#30 0xb54aedaf in QApplication::notify (this=0xbfc26b50, receiver=0x93cb180, e=0xbfc26b50) at kernel/qapplication.cpp:3944
#31 0xb71c8ec1 in KApplication::notify (this=0xbfc26f18, receiver=0x93cb180, event=0xbfc26b50) at ../../kdeui/kernel/kapplication.cpp:311
#32 0xb763888f in notify (e=0xbfc26b50, o=0x93cb180, this=0xbfc26f18) at ../../kwin/main.cpp:371
#33 KWin::Application::notify (this=0xbfc26f18, o=0x93cb180, e=0xbfc26b50) at ../../kwin/main.cpp:367
#34 0xb5fb978e in QCoreApplication::notifyInternal (this=0xbfc26f18, receiver=0x93cb180, event=0xbfc26b50) at kernel/qcoreapplication.cpp:915
#35 0xb5fee280 in sendEvent (event=0xbfc26b50, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#36 QTimerInfoList::activateTimers (this=0x933c5c4) at kernel/qeventdispatcher_unix.cpp:611
#37 0xb5fee305 in QEventDispatcherUNIX::activateTimers (this=0x933c5c4, this@entry=0x933b410) at kernel/qeventdispatcher_unix.cpp:868
#38 0xb5fee478 in QEventDispatcherUNIX::processEvents (this=0x933b410, flags=...) at kernel/qeventdispatcher_unix.cpp:930
#39 0xb55619f3 in QEventDispatcherX11::processEvents (this=0x933b410, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#40 0xb5fb826c in QEventLoop::processEvents (this=this@entry=0xbfc26d98, flags=...) at kernel/qeventloop.cpp:149
#41 0xb5fb8561 in QEventLoop::exec (this=0xbfc26d98, flags=...) at kernel/qeventloop.cpp:204
#42 0xb5fbdcba in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#43 0xb54a7fc4 in QApplication::exec () at kernel/qapplication.cpp:3823
#44 0xb763b1f9 in kdemain (argc=3, argv=0xbfc27004) at ../../kwin/main.cpp:545
#45 0x0804855b in main (argc=3, argv=0xbfc27004) at kwin_dummy.cpp:3

Possible duplicates by query: bug 317594, bug 317373, bug 317160, bug 317130, bug 316866.

Reported using DrKonqi