Bug 302169 - kwin crash when activating desktop effects
Summary: kwin crash when activating desktop effects
Status: RESOLVED NOT A BUG
Alias: None
Product: kwin
Classification: Plasma
Component: general (show other bugs)
Version: 4.8.80
Platform: openSUSE Linux
: NOR crash
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-06-19 07:11 UTC by Martin Koller
Modified: 2012-07-03 13:05 UTC (History)
0 users

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:
mgraesslin: Intel+


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Description Martin Koller 2012-06-19 07:11:41 UTC
Application: kwin (4.8.3 (4.8.3) "release 1")
KDE Platform Version: 4.8.3 (4.8.3) "release 1"
Qt Version: 4.8.2
Operating System: Linux 3.1.10-1.9-desktop i686
Distribution: "openSUSE 12.1 (i586)"

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

I was away from my desk so I can't really say. When I came back a few minutes later, kwin was gone (Note: I have NO screensaver activated)
I now updated to the latest openSuse kwin package (4.8.80_20120529-1.2) and also installed debug symbols and started kwin --replace.
When then activating desktop effects (which btw worked so far pretty well), kwin crashed.

Output of kwin when starting in konsole:
OpenGL vendor string:                   Tungsten Graphics, Inc
OpenGL renderer string:                 Mesa DRI Mobile Intel® GM45 Express Chipset x86/MMX/SSE2
OpenGL version string:                  2.1 Mesa 8.0.3
OpenGL shading language version string: 1.20
Driver:                                 Intel
GPU class:                              i965
OpenGL version:                         2.1
GLSL version:                           1.20
Mesa version:                           8.0.3
X server version:                       1.12.2
Linux kernel version:                   3.1.10
Direct rendering:                       yes
Requires strict binding:                yes
GLSL shaders:                           yes
Texture NPOT support:                   limited
kwin(28537): Shaders are not supported 
Application::crashHandler() called with signal 11; recent crashes: 1
KCrash: Application 'kwin' crashing...

Compositing type is set to OpenGL, Qt graphics system=Raster

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb1cea720 (LWP 28537))]

Thread 2 (Thread 0xb0da7b70 (LWP 28538)):
#0  0xb5df8b15 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0xb753a624 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libc.so.6
#2  0xb5e7878f in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#3  0xb5e6ac04 in ?? () from /usr/lib/libQtCore.so.4
#4  0xb5e78290 in ?? () from /usr/lib/libQtCore.so.4
#5  0xb5df4a7d in start_thread () from /lib/libpthread.so.0
#6  0xb752cabe in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb1cea720 (LWP 28537)):
[KCrash Handler]
#6  brw_update_renderbuffer_surface (brw=0x86f6490, rb=0x85e8bc0, unit=0) at brw_wm_surface_state.c:959
#7  0xac189343 in brw_update_renderbuffer_surfaces (brw=0x86f6490) at brw_wm_surface_state.c:1052
#8  0xac17347f in brw_upload_state (brw=0x86f6490) at brw_state_upload.c:503
#9  0xac15e807 in brw_try_draw_prims (max_index=5, min_index=0, ib=0x0, nr_prims=1, prim=0xbfd951c8, arrays=0x874b028, ctx=0x86f6490) at brw_draw.c:482
#10 brw_draw_prims (ctx=0x86f6490, arrays=0x874b028, prim=0xbfd951c8, nr_prims=1, ib=0x0, index_bounds_valid=1 '\001', min_index=0, max_index=5, tfb_vertcount=0x0) at brw_draw.c:566
#11 0xabfc17fe in vbo_draw_arrays (ctx=0x86f6490, mode=4, start=0, count=6, numInstances=1) at vbo/vbo_exec_array.c:600
#12 0xb64b72de in KWin::GLVertexBufferPrivate::fallbackPainting (this=0x85e1460, region=..., primitiveMode=4, hardwareClipping=false) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/libkwineffects/kwinglutils.cpp:1253
#13 0xb64b76e8 in KWin::GLVertexBuffer::render (this=0x8238510, region=..., primitiveMode=4, hardwareClipping=false) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/libkwineffects/kwinglutils.cpp:1341
#14 0xb768c748 in renderQuads (hardwareClipping=false, normalized=false, tex=0x85faa20, quads=..., region=..., this=<optimized out>) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/scene_opengl.cpp:795
#15 KWin::SceneOpenGL::Window::renderQuads (this=0x85faa00, region=..., quads=..., tex=0x85faa20, normalized=false, hardwareClipping=false) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/scene_opengl.cpp:774
#16 0xb76938f4 in KWin::SceneOpenGL::Window::performPaint (this=0x85faa00, mask=1, region=..., data=...) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/scene_opengl.cpp:593
#17 0xb767a457 in KWin::Scene::finalDrawWindow (this=0x822be08, w=0x8610280, mask=1, region=..., data=...) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/scene.cpp:441
#18 0xb769fc60 in KWin::EffectsHandlerImpl::drawWindow (this=0x85c5d30, w=0x8610280, mask=1, region=..., data=...) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/effects.cpp:305
#19 0xb7679872 in KWin::Scene::finalPaintWindow (this=0x822be08, w=0x8610280, mask=1, region=..., data=...) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/scene.cpp:432
#20 0xb769fed0 in KWin::EffectsHandlerImpl::paintWindow (this=0x85c5d30, w=0x8610280, mask=1, region=..., data=...) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/effects.cpp:268
#21 0xb767cd43 in KWin::Scene::paintWindow (this=0x822be08, w=0x85faa00, mask=1, region=..., quads=...) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/scene.cpp:349
#22 0xb767ac64 in KWin::Scene::paintSimpleScreen (this=0x822be08, orig_mask=0, region=...) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/scene.cpp:335
#23 0xb767978a in KWin::Scene::finalPaintScreen (this=0x822be08, mask=0, region=..., data=...) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/scene.cpp:193
#24 0xb76a0070 in KWin::EffectsHandlerImpl::paintScreen (this=0x85c5d30, mask=0, region=..., data=...) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/effects.cpp:241
#25 0xb767b4c3 in KWin::Scene::paintScreen (this=0x822be08, mask=0xbfd95da8, region=0xbfd95e2c) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/scene.cpp:147
#26 0xb7694cf6 in KWin::SceneOpenGL::paint (this=0x822be08, damage=..., toplevels=...) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/scene_opengl_glx.cpp:488
#27 0xb76739b3 in performCompositing (this=0x81c0ce0) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/composite.cpp:433
#28 KWin::Workspace::performCompositing (this=0x81c0ce0) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/composite.cpp:397
#29 0xb76743ed in KWin::Workspace::slotCompositingOptionsInitialized (this=0x81c0ce0) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/composite.cpp:199
#30 0xb7674cf0 in setupCompositing (this=0x81c0ce0) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/composite.cpp:110
#31 KWin::Workspace::setupCompositing (this=0x81c0ce0) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/composite.cpp:83
#32 0xb767565e in KWin::Workspace::suspendCompositing (this=0x81c0ce0, suspend=false) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/composite.cpp:338
#33 0xb7675700 in KWin::Workspace::slotToggleCompositing (this=0x81c0ce0) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/composite.cpp:274
#34 0xb75fa7e4 in qt_static_metacall (_a=0xbfd961f8, _id=82, _o=0x81c0ce0, _c=<optimized out>) at /usr/src/debug/kde-workspace-4.8.80_20120529/build/kwin/workspace.moc:352
#35 KWin::Workspace::qt_static_metacall (_o=0x81c0ce0, _c=QMetaObject::InvokeMetaMethod, _id=82, _a=0xbfd961f8) at /usr/src/debug/kde-workspace-4.8.80_20120529/build/kwin/workspace.moc:264
#36 0xb5fa369f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#37 0xb54501bd in QAction::triggered(bool) () from /usr/lib/libQtGui.so.4
#38 0xb545045b in QAction::activate(QAction::ActionEvent) () from /usr/lib/libQtGui.so.4
#39 0xb725079f in trigger (this=0x8261fd8) at /usr/include/QtGui/qaction.h:218
#40 KGlobalAccelPrivate::_k_invokeAction (this=0x8237890, componentUnique=..., actionUnique=..., timestamp=372407684) at /usr/src/debug/kdelibs-4.8.80_20120529/kdeui/shortcuts/kglobalaccel.cpp:449
#41 0xb72516c6 in qt_static_metacall (_a=0xbfd963c0, _o=0x823a9e0, _c=<optimized out>, _id=<optimized out>) at /usr/src/debug/kdelibs-4.8.80_20120529/build/kdeui/kglobalaccel.moc:54
#42 KGlobalAccel::qt_static_metacall (_o=0x823a9e0, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbfd963c0) at /usr/src/debug/kdelibs-4.8.80_20120529/build/kdeui/kglobalaccel.moc:48
#43 0xb5fa369f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#44 0xb738a8e5 in OrgKdeKglobalaccelComponentInterface::globalShortcutPressed (this=0x82397d8, _t1=..., _t2=..., _t3=372407684) at /usr/src/debug/kdelibs-4.8.80_20120529/build/kdeui/kglobalaccel_component_interface.moc:164
#45 0xb738b026 in qt_static_metacall (_a=0xbfd9660c, _id=0, _o=0x82397d8, _c=<optimized out>) at /usr/src/debug/kdelibs-4.8.80_20120529/build/kdeui/kglobalaccel_component_interface.moc:75
#46 OrgKdeKglobalaccelComponentInterface::qt_static_metacall (_o=0x82397d8, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbfd9660c) at /usr/src/debug/kdelibs-4.8.80_20120529/build/kdeui/kglobalaccel_component_interface.moc:69
#47 0xb738b5c4 in OrgKdeKglobalaccelComponentInterface::qt_metacall (this=0x82397d8, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbfd9660c) at /usr/src/debug/kdelibs-4.8.80_20120529/build/kdeui/kglobalaccel_component_interface.moc:130
#48 0xb610f610 in ?? () from /usr/lib/libQtDBus.so.4
#49 0xb611990d in ?? () from /usr/lib/libQtDBus.so.4
#50 0xb5fa7d2b in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#51 0xb5457404 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#52 0xb545c743 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#53 0xb71fe671 in KApplication::notify (this=0xbfd96e04, receiver=0x82397d8, event=0x8658ea0) at /usr/src/debug/kdelibs-4.8.80_20120529/kdeui/kernel/kapplication.cpp:311
#54 0xb761b29f in notify (e=0x8658ea0, o=0x82397d8, this=0xbfd96e04) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/main.cpp:371
#55 KWin::Application::notify (this=0xbfd96e04, o=0x82397d8, e=0x8658ea0) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/main.cpp:367
#56 0xb5f8cdce in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#57 0xb5f90a48 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4
#58 0xb5f90d7c in QCoreApplication::sendPostedEvents(QObject*, int) () from /usr/lib/libQtCore.so.4
#59 0xb550c2ad in ?? () from /usr/lib/libQtGui.so.4
#60 0xb5f8b64d in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#61 0xb5f8b8e9 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#62 0xb5f90e2a in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#63 0xb54552a4 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#64 0xb761e156 in kdemain (argc=2, argv=0xbfd970a4) at /usr/src/debug/kde-workspace-4.8.80_20120529/kwin/main.cpp:545
#65 0x0804852b in main (argc=2, argv=0xbfd970a4) at /usr/src/debug/kde-workspace-4.8.80_20120529/build/kwin/kwin_dummy.cpp:3

Possible duplicates by query: bug 301529, bug 301403, bug 301131, bug 300886, bug 299333.

Reported using DrKonqi
Comment 1 Thomas Lübking 2012-06-19 07:59:23 UTC
> 4.8.80_20120529-1.
you're aware that that is 4.9beta2?

However, the crash happens in the driver - can you please post/attach the output of
"qdbus org.kde.kwin /KWin supportInformation", thanks

*** This bug has been marked as a duplicate of bug 299333 ***
Comment 2 Martin Koller 2012-06-19 16:42:20 UTC
Here's the output:

KWin Support Information:
The following information should be used when requesting support on e.g. http://forum.kde.org.
It provides information about the currently running instance, which options are used,
what OpenGL driver and which effects are running.
Please post the information provided underneath this introductory text to a paste bin service
like http://paste.kde.org instead of pasting into support threads.

==========================

Options
=======
focusPolicy: 0
nextFocusPrefersMouse: false
clickRaise: true
autoRaise: false
autoRaiseInterval: 0
delayFocusInterval: 0
shadeHover: false
shadeHoverInterval: 250
tiling: false
tilingLayout: 0
tilingRaisePolicy: 0
separateScreenFocus: false
activeMouseScreen: false
placement: 4
focusPolicyIsReasonable: true
borderSnapZone: 20
windowSnapZone: 20
centerSnapZone: 0
snapOnlyWhenOverlapping: true
showDesktopIsMinimizeAll: false
rollOverDesktops: false
focusStealingPreventionLevel: 2
legacyFullscreenSupport: false
operationTitlebarDblClick: 
commandActiveTitlebar1: 0
commandActiveTitlebar2: 15
commandActiveTitlebar3: 2
commandInactiveTitlebar1: 4
commandInactiveTitlebar2: 15
commandInactiveTitlebar3: 2
commandWindow1: 7
commandWindow2: 8
commandWindow3: 8
commandWindowWheel: 31
commandAll1: 10
commandAll2: 3
commandAll3: 14
keyCmdAllModKey: 16777251
showGeometryTip: false
electricBorders: false
electricBorderDelay: 350
electricBorderCooldown: 350
electricBorderPushbackPixels: 1
electricBorderMaximize: false
electricBorderTiling: false
borderlessMaximizedWindows: false
killPingTimeout: 5000
hideUtilityWindowsForInactive: true
inactiveTabsSkipTaskbar: false
autogroupSimilarWindows: false
autogroupInForeground: true
compositingMode: 1
useCompositing: false
compositingInitialized: false
hiddenPreviews: 1
unredirectFullscreen: false
glSmoothScale: 2
glVSync: true
xrenderSmoothScale: false
maxFpsInterval: 17
refreshRate: 0
vBlankTime: 6144
glDirect: true
glStrictBinding: true
glStrictBindingFollowsDriver: true

Compositing
===========
Qt Graphics System: raster
Compositing is not active
Comment 3 Thomas Lübking 2012-06-19 17:06:41 UTC
> unredirectFullscreen: false
well, it's actually not the screensaver ;-)

However, this is actually NOT a dupe since all others crash out of core painting while you crash out of the fallback painting (likely because of the uninitialized NPOT variable leading to the wrong "limited" assumption)

-> can you apply a patch?

"kwin_gles --replace &" will most likely work for you (just as the xrender compositor)
Comment 4 Martin Koller 2012-06-20 05:47:34 UTC
Yes, I'm aware of the fact that this is 4.9beta1 (not beta2) as I installed it myself.
However I don't know why Help -> About KDE still says 4.8.3 (probably due to the frozen kdelibs situation)
Yes, the crash is not coming from the screensaver, as I described in this report: I do not have a screensaver enabled.

-> can you apply a patch?

If you mean if I can compile kwin from source ? Yes, I can.

-> "kwin_gles --replace &"

does not work. it gives:

kwin(8739): Required support for binding pixmaps to EGLImages not found, disabling compositing 
kwin(8739): Failed to initialize compositing, compositing disabled 
kwin(8739): Consult http://techbase.kde.org/Projects/KWin/4.0-release-notes#Setting_up

Activating Xrender works.

The interesting thing is: the compositor with openGL did already work!

I also got here the message
libEGL warning: DRI2: failed to authenticate

don't know when exactly (I'm trying to switch the compositing between openGL and Xrender)
Comment 5 Thomas Lübking 2012-06-20 07:26:37 UTC
(In reply to comment #4)
> Yes, I'm aware of the fact that this is 4.9beta1 (not beta2) as I installed
> it myself.
> However I don't know why Help -> About KDE still says 4.8.3 
the value comes from kdelibs, but running kde-workspace 4.9 on libs 4.8 should be fine

> Yes, the crash is not coming from the screensaver, as I described in this
> report: I do not have a screensaver enabled.
:-)
The intel driver just likes to crash if that config is true and you close any fullscreen window, i understood there's no screensaver but anything behaving similar *would* have been a candidate.

> -> can you apply a patch?
> If you mean if I can compile kwin from source ? Yes, I can.
great, these two, please - then check whether the issue remains
https://git.reviewboard.kde.org/r/105235/
https://git.reviewboard.kde.org/r/105249/

(you may as well just try current kwin git master if that's an option)


> -> "kwin_gles --replace &"
> does not work. it gives:
> kwin(8739): Required support for binding pixmaps to EGLImages not 
this means you lack the EGL_KHR_image* extensions - did you install some dummy libegl?

> I also got here the message
> libEGL warning: DRI2: failed to authenticate
ahhh...  hähh?
latter two together look like intel-dri is not installed or broken?!?
Comment 6 Martin Koller 2012-06-23 08:54:05 UTC
On Wednesday, 20. June 2012 09:26:37 you wrote:


> > -> "kwin_gles --replace &"
> > does not work. it gives:
> > kwin(8739): Required support for binding pixmaps to EGLImages not 
> this means you lack the EGL_KHR_image* extensions - did you install some dummy
> libegl?
> 
> > I also got here the message
> > libEGL warning: DRI2: failed to authenticate
> ahhh...  hähh?
> latter two together look like intel-dri is not installed or broken?!?

I have installed all the latest Xorg stuff from 
http://download.opensuse.org/repositories/X11:/XOrg/openSUSE_12.1/

xorg-x11-proto-devel-7.6-126.1.i586
xorg-cf-files-1.0.4-4.1.noarch
xorg-x11-devel-7.6-113.1.noarch
xorg-x11-libX11-ccache-7.6-22.3.noarch
xorg-x11-server-extra-7.6_1.12.2-178.1.i586
xorg-x11-server-7.6_1.12.2-178.1.i586
xorg-scripts-1.0.1-3.1.noarch
xorg-x11-fonts-7.6-81.1.noarch
xorg-x11-fonts-core-7.6-81.1.noarch
xorg-x11-libs-7.6-113.1.noarch
xorg-sgml-doctools-1.11-4.1.noarch
xorg-x11-util-devel-7.6_1-47.1.noarch
xorg-x11-driver-video-intel-legacy-2.9.1-47.4.i586
xorg-x11-7.6_1-162.1.noarch
xorg-x11-driver-video-7.6_1-199.1.noarch
xorg-x11-driver-input-7.6_1-105.1.noarch
Mesa-libGLESv2-2-8.0.3-155.1.i586
Mesa-libGL1-8.0.3-155.1.i586
Mesa-libGL-devel-8.0.3-155.1.i586
Mesa-libGLU-devel-8.0.3-155.1.i586
Mesa-libIndirectGL1-8.0.3-155.1.i586
Mesa-libGLU1-8.0.3-155.1.i586
Mesa-debuginfo-8.0.3-155.1.i586
Mesa-libEGL1-8.0.3-155.1.i586
Mesa-libGLESv1_CM1-8.0.3-155.1.i586
Mesa-devel-8.0.3-155.1.i586
DirectFB-Mesa-1.4.5-20.1.2.i586
libOSMesa8-8.0.3-155.1.i586
Mesa-libGLESv2-devel-8.0.3-155.1.i586
Mesa-libGLESv1_CM-devel-8.0.3-155.1.i586
Mesa-libglapi0-8.0.3-155.1.i586
Mesa-8.0.3-155.1.i586
Mesa-libEGL-devel-8.0.3-155.1.i586


Don't know what to look for now ...
Tell me what info you need, please.
Comment 7 Thomas Lübking 2012-06-23 10:35:00 UTC
don't know how SuSE organizes their packages, but this
xorg-x11-driver-video-intel-legacy-2.9.1-47.4.i586
looks highly suspicious - "legacy" will likely be for UMS or what?

You should have
libdrm_intel1-2.4.33-71.1.i586.rpm
and *probably* (i don't know what they contain, details tells me the mirrors... :-) rather
xf86-video-intel-2.19.0_20120601_8eed569-15.1.i586.rpm

please in doubt ask some SuSE folks how to get the intel KMS/DRI driver - GLES won't work otherwise and direct rendering might fail on the UMS driver
Comment 8 Martin Koller 2012-06-23 11:13:51 UTC
xorg-x11-driver-video-intel-legacy-2.9.1-47.4.i586

This package contains the legacy version of the Intel X.Org driver which does
not require KMS.

But I do not use the legacy driver.
I even removed this package now.

However, I checked the Xorg server logfile and I had some DRI related errors in it:
(WW) intel(0): cannot enable DRI2 whilst forcing software fallbacks
...
(II) intel(0): direct rendering: Failed

Whyever ... I did a reboot (man that hurts ;-) ) and now the Xorg server is doing fine again with DRI
and I can activate openGL again...

But: This effectively brings me to the situation before I encountered the crash I reported :-(

I can now again activate and deactivate the desktop effects without problems.

(In the meantime I have also updated KDE 4.9 to beta2)
Effectively, I can no longer reproduce the crash and therefore I can not test your fix with KDE trunk.
Probably I just need to wait until the crash happens again...

Feel free to close this entry.
Comment 9 Thomas Lübking 2012-06-23 11:22:51 UTC
sum up:
*this* bug is invalid (installed "wrong" driver) but there's a remaining random crash.

Ideally check whether there's a debug package for your proper driver and whenever you encounter the original crash again, please feel free to open a new report.


(In reply to comment #8)
> Whyever ... I did a reboot (man that hurts ;-) ) and now the Xorg server is
> doing fine again with DRI
i'm not sure whether it's actually possible to switch between UMS & KMS at runtime by just replacing the kernel modules (if you did so ;-)
Comment 10 Martin Koller 2012-06-24 12:10:45 UTC
For the records: I got the crash again and reported it to freedesktop.org
https://bugs.freedesktop.org/show_bug.cgi?id=51376