Bug 333711

Summary:	Can't activate desktop effects
Product:	[Plasma] kwin	Reporter:	Pablo <pabloypunto>
Component:	general	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	crash	Keywords:	drkonqi
Priority:	NOR	Flags:	mgraesslin: nouveau+
Version First Reported In:	4.11.8
Target Milestone:	---
Platform:	Debian testing
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Pablo 2014-04-22 06:15:49 UTC

Application: kwin (4.11.8)
KDE Platform Version: 4.11.5
Qt Version: 4.8.6
Operating System: Linux 3.13-1-amd64 x86_64
Distribution: Debian GNU/Linux testing (jessie)

-- Information about the crash:
This problem occurs every time I try to enable desktop effects (Shift-Alt-F12).

The crash can be reproduced every 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 0x7f6ffadcd900 (LWP 5470))]

Thread 2 (Thread 0x7f6fd7de9700 (LWP 5476)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6ff97b7b4b in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f6ff97b7b89 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f6ff231b062 in start_thread (arg=0x7f6fd7de9700) at pthread_create.c:312
#4  0x00007f6ffa5b3a3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f6ffadcd900 (LWP 5470)):
[KCrash Handler]
#6  pushbuf_dump (krec=krec@entry=0x18a0680, krec_id=krec_id@entry=0, chid=0) at ../../nouveau/pushbuf.c:296
#7  0x00007f6f4b9b912c in pushbuf_submit (push=push@entry=0x15ad380, chan=<optimized out>, chan=<optimized out>) at ../../nouveau/pushbuf.c:361
#8  0x00007f6f4b9b916e in pushbuf_flush (push=push@entry=0x15ad380) at ../../nouveau/pushbuf.c:402
#9  0x00007f6f4b9b9a60 in pushbuf_validate (push=0x15ad380, retry=<optimized out>) at ../../nouveau/pushbuf.c:524
#10 0x00007f6f4b9b9bba in nouveau_pushbuf_validate (push=<optimized out>) at ../../nouveau/pushbuf.c:749
#11 0x00007f6f43a1ec1d in nv50_state_validate (nv50=nv50@entry=0x1298750, mask=mask@entry=4294967295, words=words@entry=8) at ../../../../../../src/gallium/drivers/nouveau/nv50/nv50_state_validate.c:430
#12 0x00007f6f43a29324 in nv50_draw_vbo (pipe=0x1298750, info=0x7fff1b02e470) at ../../../../../../src/gallium/drivers/nouveau/nv50/nv50_vbo.c:774
#13 0x00007f6f4379e75c in st_draw_vbo (ctx=0x7f6f4ab06010, prims=<optimized out>, nr_prims=<optimized out>, ib=0x7fff1b02e530, index_bounds_valid=<optimized out>, min_index=4294967295, max_index=4294967295, tfb_vertcount=0x0, indirect=0x0) at ../../../../src/mesa/state_tracker/st_draw.c:286
#14 0x00007f6f43770b73 in vbo_handle_primitive_restart (ctx=ctx@entry=0x7f6f4ab06010, prim=prim@entry=0x7fff1b02e550, nr_prims=nr_prims@entry=1, ib=ib@entry=0x7fff1b02e530, index_bounds_valid=index_bounds_valid@entry=0 '\000', min_index=min_index@entry=4294967295, max_index=max_index@entry=4294967295) at ../../../../src/mesa/vbo/vbo_exec_array.c:585
#15 0x00007f6f43771e90 in vbo_validated_drawrangeelements (ctx=ctx@entry=0x7f6f4ab06010, mode=mode@entry=4, index_bounds_valid=index_bounds_valid@entry=0 '\000', start=start@entry=4294967295, end=end@entry=4294967295, count=count@entry=96, type=type@entry=5123, indices=indices@entry=0x0, basevertex=basevertex@entry=0, numInstances=numInstances@entry=1, baseInstance=baseInstance@entry=0) at ../../../../src/mesa/vbo/vbo_exec_array.c:1006
#16 0x00007f6f43772325 in vbo_exec_DrawElementsBaseVertex (mode=4, count=96, type=5123, indices=0x0, basevertex=0) at ../../../../src/mesa/vbo/vbo_exec_array.c:1179
#17 0x00007f6ff56692db in KWin::GLVertexBuffer::draw (this=this@entry=0x17d0340, region=..., primitiveMode=primitiveMode@entry=7, first=0, count=96, hardwareClipping=<optimized out>) at ../../../kwin/libkwineffects/kwinglutils.cpp:1936
#18 0x00007f6ffa952958 in KWin::SceneOpenGL2Window::performPaint (this=this@entry=0x1e3ea30, mask=mask@entry=1, region=..., data=...) at ../../kwin/scene_opengl.cpp:1574
#19 0x00007f6ffa9563c2 in KWin::SceneOpenGL2::performPaintWindow (this=<optimized out>, w=<optimized out>, mask=1, region=..., data=...) at ../../kwin/scene_opengl.cpp:784
#20 0x00007f6ffa956579 in KWin::SceneOpenGL2::finalDrawWindow (this=0x124a810, w=w@entry=0x1e3e960, mask=mask@entry=1, region=..., data=...) at ../../kwin/scene_opengl.cpp:770
#21 0x00007f6ffa960d89 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a78480, w=w@entry=0x1e3e960, mask=mask@entry=1, region=..., data=...) at ../../kwin/effects.cpp:455
#22 0x00007f6ffa93e871 in KWin::Scene::finalPaintWindow (this=<optimized out>, w=w@entry=0x1e3e960, mask=mask@entry=1, region=..., data=...) at ../../kwin/scene.cpp:584
#23 0x00007f6ffa960c9a in KWin::EffectsHandlerImpl::paintWindow (this=0x1a78480, w=0x1e3e960, mask=mask@entry=1, region=..., data=...) at ../../kwin/effects.cpp:418
#24 0x00007f6ffa9423da in KWin::Scene::paintWindow (this=0x124a810, w=0x1e3ea30, mask=1, region=..., quads=...) at ../../kwin/scene.cpp:416
#25 0x00007f6ffa9407cb in KWin::Scene::paintSimpleScreen (this=this@entry=0x124a810, orig_mask=orig_mask@entry=0, region=...) at ../../kwin/scene.cpp:378
#26 0x00007f6ffa93e755 in KWin::Scene::finalPaintScreen (this=0x124a810, mask=mask@entry=0, region=..., data=...) at ../../kwin/scene.cpp:198
#27 0x00007f6ffa960bbd in KWin::EffectsHandlerImpl::paintScreen (this=0x1a78480, mask=0, region=..., data=...) at ../../kwin/effects.cpp:375
#28 0x00007f6ffa940c23 in KWin::Scene::paintScreen (this=this@entry=0x124a810, mask=mask@entry=0x7fff1b02eecc, damage=..., repaint=..., updateRegion=updateRegion@entry=0x7fff1b02eee0, validRegion=validRegion@entry=0x7fff1b02eef0) at ../../kwin/scene.cpp:148
#29 0x00007f6ffa953a1e in KWin::SceneOpenGL::paint (this=0x124a810, damage=..., toplevels=...) at ../../kwin/scene_opengl.cpp:389
#30 0x00007f6ffa938873 in KWin::Compositor::performCompositing (this=this@entry=0xc24130) at ../../kwin/composite.cpp:618
#31 0x00007f6ffa939b6f in KWin::Compositor::slotCompositingOptionsInitialized (this=0xc24130) at ../../kwin/composite.cpp:273
#32 0x00007f6ffa8c27d5 in KWin::Compositor::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at moc_composite.cpp:193
#33 0x00007f6ff494d77a in QMetaObject::activate (sender=0x16718b0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#34 0x00007f6ff4827b18 in QFutureWatcherBase::event (this=<optimized out>, event=0x7f6fd8001d60) at concurrent/qfuturewatcher.cpp:344
#35 0x00007f6ff3cda6cc in QApplicationPrivate::notify_helper (this=this@entry=0xa214d0, receiver=receiver@entry=0x16718b0, e=e@entry=0x7f6fd8001d60) at kernel/qapplication.cpp:4567
#36 0x00007f6ff3ce0d40 in QApplication::notify (this=this@entry=0x7fff1b02fa20, receiver=receiver@entry=0x16718b0, e=e@entry=0x7f6fd8001d60) at kernel/qapplication.cpp:4353
#37 0x00007f6ff920748a in KApplication::notify (this=0x7fff1b02fa20, receiver=0x16718b0, event=0x7f6fd8001d60) at ../../kdeui/kernel/kapplication.cpp:311
#38 0x00007f6ff49394ed in QCoreApplication::notifyInternal (this=0x7fff1b02fa20, receiver=receiver@entry=0x16718b0, event=event@entry=0x7f6fd8001d60) at kernel/qcoreapplication.cpp:953
#39 0x00007f6ff493cb4d in sendEvent (event=0x7f6fd8001d60, receiver=0x16718b0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#40 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x9b4300) at kernel/qcoreapplication.cpp:1577
#41 0x00007f6ff493cff3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1470
#42 0x00007f6ff3d78eec in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#43 QEventDispatcherX11::processEvents (this=0x9b5b30, flags=...) at kernel/qeventdispatcher_x11.cpp:75
#44 0x00007f6ff49380bf in QEventLoop::processEvents (this=this@entry=0x7fff1b02f890, flags=...) at kernel/qeventloop.cpp:149
#45 0x00007f6ff49383b5 in QEventLoop::exec (this=this@entry=0x7fff1b02f890, flags=...) at kernel/qeventloop.cpp:204
#46 0x00007f6ff493db89 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#47 0x00007f6ff3cd8e8c in QApplication::exec () at kernel/qapplication.cpp:3828
#48 0x00007f6ffa8f28d6 in kdemain (argc=3, argv=0x7fff1b02fb68) at ../../kwin/main.cpp:597
#49 0x00007f6ffa4efb45 in __libc_start_main (main=0x4006d0 <main(int, char**)>, argc=3, argv=0x7fff1b02fb68, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff1b02fb58) at libc-start.c:287
#50 0x00000000004006fe in _start ()

Reported using DrKonqi

Comment 1 Martin Flöser 2014-04-22 06:24:56 UTC

The crash happens in the driver. Please note that nouveau is still a very unstable and experimental driver. You will have better results with the proprietary driver.

Given the backtrace it might be possible that OpenGL 1.2 compositing works without crashing in nouveau as the crashing code path is not executed.

Comment 2 Thomas Lübking 2014-04-22 08:21:59 UTC

wild guess: 
kcmshell4 kwincompositing", 3rd tab - is the compositor set to gl 3.1?
does "glxgears" work?

Comment 3 Pablo 2014-04-22 10:12:30 UTC

Dear Martin, dear Thomas, thanks for your help.

After many tests I'm unable to get an exact configuration to repeat the problem. I have tested with the three OpenGL (3.1, 2.0 and 1.2) combining with "raster" and "native" qt system, sometimes get the fails, sometimes not. The only configuration that I can't make crash is "GL 1.2" and "native".

Anyway, when it crash I get the following dmesg registers:

[ 381.444190] nouveau E[  PGRAPH][0000:02:00.0] TRAP_CCACHE FAULT
[  381.444207] nouveau E[  PGRAPH][0000:02:00.0] TRAP_CCACHE 00000080 00000000 00000000 00000000 00000000 00000004 00000000
[  381.444211] nouveau E[  PGRAPH][0000:02:00.0]  TRAP
[  381.444217] nouveau E[  PGRAPH][0000:02:00.0] ch 5 [0x000f7cc000 kwin[4903]] subc 3 class 0x8297 mthd 0x1510 data 0x00000000
[  381.444229] nouveau E[     PFB][0000:02:00.0] trapped read at 0x004007ff00 on channel 0x0000f7cc [kwin[4903]] PGRAPH/CCACHE/CB reason: PAGE_NOT_PRESENT
[  381.447282] nouveau E[kwin[4903]] push 1 buffer not in list

So I also guess it's a driver problem.