Application: kwin (4.10.1)
KDE Platform Version: 4.10.1
Qt Version: 4.8.4
Operating System: Linux 3.8.6-203.fc18.x86_64 x86_64
Distribution (Platform): Fedora RPMs

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

I had about 130 downloads queued in gpodder.  Selected about 128 of them, then clicked to pause the downloads. gpodder froze, then the whole screen went black for a minute. Then I was brought back to the KDE login screen. The crash had completely logged off the desktop session.

- Unusual behavior I noticed:

Gpodder froze.
Desktop session froze.
Screen went black.
Automatically logged out.
Brought back to login screen.

-- Backtrace:
Application: KWin (kwin), signal: Bus error
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f1b515f3880 (LWP 16426))]

Thread 2 (Thread 0x7f1b37fff700 (LWP 16433)):
#0  0x0000003004e0b5e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f1b3e07cc2b in radeon_drm_cs_emit_ioctl () from /usr/lib64/dri/r600_dri.so
#2  0x0000003004e07d15 in start_thread () from /lib64/libpthread.so.0
#3  0x00000030046f248d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f1b515f3880 (LWP 16426)):
[KCrash Handler]
#5  0x0000003004693e7f in __memset_x86_64 () from /lib64/libc.so.6
#6  0x00007f1b3e066ff2 in r600_texture_create_object () from /usr/lib64/dri/r600_dri.so
#7  0x00007f1b3e0672c7 in r600_texture_create () from /usr/lib64/dri/r600_dri.so
#8  0x00007f1b3e079a25 in dri2_allocate_textures () from /usr/lib64/dri/r600_dri.so
#9  0x00007f1b3e078595 in dri_st_framebuffer_validate () from /usr/lib64/dri/r600_dri.so
#10 0x00007f1b3e0787ce in dri_set_tex_buffer2 () from /usr/lib64/dri/r600_dri.so
#11 0x00000038aeacb3c3 in KWin::GlxTexture::loadTexture(unsigned long const&, QSize const&, int) () from /lib64/libkdeinit4_kwin.so
#12 0x00000038aeac30d5 in KWin::SceneOpenGL::Window::bindTexture() () from /lib64/libkdeinit4_kwin.so
#13 0x00000038aeac9a8e in KWin::SceneOpenGL::Window::performPaint(int, QRegion, KWin::WindowPaintData) () from /lib64/libkdeinit4_kwin.so
#14 0x00000038aeac249f in KWin::SceneOpenGL2::performPaintWindow(KWin::EffectWindowImpl*, int, QRegion, KWin::WindowPaintData&) () from /lib64/libkdeinit4_kwin.so
#15 0x00000038aeac263d in KWin::SceneOpenGL2::finalDrawWindow(KWin::EffectWindowImpl*, int, QRegion, KWin::WindowPaintData&) () from /lib64/libkdeinit4_kwin.so
#16 0x00000038aead63a5 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /lib64/libkdeinit4_kwin.so
#17 0x00000038aeab585a in KWin::Scene::finalPaintWindow(KWin::EffectWindowImpl*, int, QRegion, KWin::WindowPaintData&) () from /lib64/libkdeinit4_kwin.so
#18 0x00000038aead6627 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () from /lib64/libkdeinit4_kwin.so
#19 0x00000038aeab841d in KWin::Scene::paintWindow(KWin::Scene::Window*, int, QRegion, KWin::WindowQuadList) () from /lib64/libkdeinit4_kwin.so
#20 0x00000038aeab774f in KWin::Scene::paintSimpleScreen(int, QRegion) () from /lib64/libkdeinit4_kwin.so
#21 0x00000038aeab579e in KWin::Scene::finalPaintScreen(int, QRegion, KWin::ScreenPaintData&) () from /lib64/libkdeinit4_kwin.so
#22 0x00000038aead67f0 in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () from /lib64/libkdeinit4_kwin.so
#23 0x00000038aeab6b38 in KWin::Scene::paintScreen(int*, QRegion*) () from /lib64/libkdeinit4_kwin.so
#24 0x00000038aeac5f9e in KWin::SceneOpenGL::paint(QRegion, QList<KWin::Toplevel*>) () from /lib64/libkdeinit4_kwin.so
#25 0x00000038aeab0f5c in KWin::Compositor::performCompositing() () from /lib64/libkdeinit4_kwin.so
#26 0x00000038aeab1a10 in KWin::Compositor::slotCompositingOptionsInitialized() () from /lib64/libkdeinit4_kwin.so
#27 0x000000300c78ceef in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /lib64/libQtCore.so.4
#28 0x000000300c66c5d7 in QFutureWatcherBase::event(QEvent*) () from /lib64/libQtCore.so.4
#29 0x00000033dc1ca5cc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#30 0x00000033dc1cea4a in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#31 0x00000038a74473c6 in KApplication::notify(QObject*, QEvent*) () from /lib64/libkdeui.so.5
#32 0x000000300c777abe in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#33 0x000000300c77b571 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQtCore.so.4
#34 0x00000033dc26b3bc in QEventDispatcherX11::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtGui.so.4
#35 0x000000300c77680f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#36 0x000000300c776a98 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#37 0x000000300c77b888 in QCoreApplication::exec() () from /lib64/libQtCore.so.4
#38 0x00000038aea67d6a in kdemain () from /lib64/libkdeinit4_kwin.so
#39 0x0000003004621a05 in __libc_start_main () from /lib64/libc.so.6
#40 0x0000000000400991 in _start ()

Possible duplicates by query: bug 319692, bug 319654, bug 319487, bug 319236, bug 319123.

Report to https://bugs.kde.org/

Reproducible: Didn't try

Steps to Reproduce:
1. Haven't tried yet. Afraid of losing data.
2.
3.