Bug 270640

Application: kwin (4.5.5 (KDE 4.5.5))
KDE Platform Version: 4.5.5 (KDE 4.5.5)
Qt Version: 4.6.3
Operating System: Linux 2.6.34.7-66.fc13.x86_64 x86_64

-- Information about the crash:
- What I was doing when the application crashed:
I do not like the default pannel in the bottom and I deleted that and try to make one in the top of the screen.
Then it got crazy.
- Unusual behavior I noticed:
The screen got blacked out and I have to reboot.

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[KCrash Handler]
#6  so_emit (chan=0x7aa490, so=0x200077006f0064) at ../../../../src/gallium/drivers/nouveau/nouveau_stateobj.h:243
#7  0x00007f52ecbebe33 in nv50_state_flush_notify (chan=<value optimized out>) at nv50_state_validate.c:294
#8  0x00007f52ec9af462 in nouveau_pushbuf_flush (chan=0x7aa490, min=0) at nouveau_pushbuf.c:276
#9  0x00007f52ec9afe3c in nouveau_bo_wait (bo=0x1215db0, cpu_write=8, no_wait=<value optimized out>, no_block=<value optimized out>) at nouveau_bo.c:372
#10 0x00007f52ec9affee in nouveau_bo_map_range (bo=0x1215db0, delta=0, size=<value optimized out>, flags=16392) at nouveau_bo.c:428
#11 0x00007f52ecbfa5f8 in nouveau_screen_bo_map_range (pscreen=<value optimized out>, pb=<value optimized out>, offset=0, length=65536, usage=<value optimized out>) at nouveau_screen.c:173
#12 0x00007f52ecc9fdac in st_bufferobj_map_range (ctx=<value optimized out>, target=<value optimized out>, offset=0, length=65536, access=118, obj=<value optimized out>)
    at state_tracker/st_cb_bufferobjects.c:291
#13 0x00007f52ecc94eb7 in vbo_exec_vtx_map (exec=0x862200) at vbo/vbo_exec_draw.c:314
#14 0x00007f52ecc9342e in vbo_exec_BeginVertices (ctx=<value optimized out>) at vbo/vbo_exec_api.c:861
#15 0x00007f52ecc8bc43 in neutral_Begin (mode=7) at main/vtxfmt_tmp.h:308
#16 0x00007f5301a5edbc in KWin::renderGLGeometryImmediate (count=4, vertices=0x8773e0, texture=0xc0a110, color=0x0, dim=<value optimized out>, stride=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwinglutils.cpp:218
#17 0x00007f5301a5efda in KWin::renderGLGeometry (region=<value optimized out>, count=4, vertices=0x8773e0, texture=0xc0a110, color=0x0, dim=2, stride=0)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwinglutils.cpp:186
#18 0x00007f53027d6878 in KWin::SceneOpenGL::Window::renderQuads (this=<value optimized out>, region=..., quads=...) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/scene_opengl.cpp:1681
#19 0x00007f53027da774 in KWin::SceneOpenGL::Window::performPaint (this=0xfdca60, mask=41, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/scene_opengl.cpp:1551
#20 0x00007f53027cc593 in KWin::Scene::finalDrawWindow (this=<value optimized out>, w=<value optimized out>, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/scene.cpp:330
#21 0x00007f53027e2669 in KWin::EffectsHandlerImpl::drawWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:232
#22 0x00007f5301a5366c in KWin::Effect::drawWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:252
#23 0x00007f53027e2708 in KWin::EffectsHandlerImpl::drawWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:228
#24 0x00007f52ec31b636 in KWin::BlurEffect::drawWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/blur/blur.cpp:328
#25 0x00007f53027e2708 in KWin::EffectsHandlerImpl::drawWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:228
#26 0x00007f5301a5366c in KWin::Effect::drawWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:252
#27 0x00007f53027e2708 in KWin::EffectsHandlerImpl::drawWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:228
#28 0x00007f5301a5366c in KWin::Effect::drawWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:252
#29 0x00007f53027e2708 in KWin::EffectsHandlerImpl::drawWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:228
#30 0x00007f5301a5366c in KWin::Effect::drawWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:252
#31 0x00007f53027e2708 in KWin::EffectsHandlerImpl::drawWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:228
#32 0x00007f5301a5366c in KWin::Effect::drawWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:252
#33 0x00007f53027e2708 in KWin::EffectsHandlerImpl::drawWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:228
#34 0x00007f5301a5366c in KWin::Effect::drawWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:252
#35 0x00007f53027e2708 in KWin::EffectsHandlerImpl::drawWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:228
#36 0x00007f5301a5366c in KWin::Effect::drawWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:252
#37 0x00007f53027e2708 in KWin::EffectsHandlerImpl::drawWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:228
#38 0x00007f5301a5366c in KWin::Effect::drawWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:252
#39 0x00007f53027e2708 in KWin::EffectsHandlerImpl::drawWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:228
#40 0x00007f5301a5366c in KWin::Effect::drawWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:252
#41 0x00007f53027e2708 in KWin::EffectsHandlerImpl::drawWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:228
#42 0x00007f5301a5366c in KWin::Effect::drawWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:252
#43 0x00007f53027e2708 in KWin::EffectsHandlerImpl::drawWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:228
#44 0x00007f5301a5366c in KWin::Effect::drawWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:252
#45 0x00007f53027e2708 in KWin::EffectsHandlerImpl::drawWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:228
#46 0x00007f5301a5366c in KWin::Effect::drawWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:252
#47 0x00007f53027e2708 in KWin::EffectsHandlerImpl::drawWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:228
#48 0x00007f53027cb64c in KWin::Scene::finalPaintWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/scene.cpp:321
#49 0x00007f53027e2549 in KWin::EffectsHandlerImpl::paintWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:203
#50 0x00007f52ec2edf55 in KWin::LogoutEffect::paintWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=..., data=...)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/logout/logout.cpp:198
#51 0x00007f53027e25e8 in KWin::EffectsHandlerImpl::paintWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:199
#52 0x00007f5301a536fc in KWin::Effect::paintWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:242
#53 0x00007f53027e25e8 in KWin::EffectsHandlerImpl::paintWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:199
#54 0x00007f52ec2f471a in KWin::PresentWindowsEffect::paintWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=..., data=...)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/presentwindows/presentwindows.cpp:370
#55 0x00007f53027e25e8 in KWin::EffectsHandlerImpl::paintWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:199
#56 0x00007f52ec3170e7 in KWin::TaskbarThumbnailEffect::paintWindow (this=0xd23480, w=0xfc4940, mask=41, region=<value optimized out>, data=...)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/taskbarthumbnail/taskbarthumbnail.cpp:70
#57 0x00007f53027e25e8 in KWin::EffectsHandlerImpl::paintWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:199
#58 0x00007f52ec2eb8a4 in KWin::HighlightWindowEffect::paintWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=..., data=...)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/highlightwindow/highlightwindow.cpp:104
#59 0x00007f53027e25e8 in KWin::EffectsHandlerImpl::paintWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:199
#60 0x00007f52ec2e3a0d in KWin::DialogParentEffect::paintWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=..., data=...)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/dialogparent/dialogparent.cpp:70
#61 0x00007f53027e25e8 in KWin::EffectsHandlerImpl::paintWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:199
#62 0x00007f52ec2e73ca in KWin::FadeEffect::paintWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=..., data=...)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/fade/fade.cpp:160
#63 0x00007f53027e25e8 in KWin::EffectsHandlerImpl::paintWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:199
#64 0x00007f52ec316552 in KWin::SlidingPopupsEffect::paintWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=...)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/slidingpopups/slidingpopups.cpp:127
#65 0x00007f53027e25e8 in KWin::EffectsHandlerImpl::paintWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:199
#66 0x00007f52ec2ddeea in KWin::DesktopGridEffect::paintWindow (this=0xc24a40, w=0xfc4940, mask=41, region=..., data=...)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/desktopgrid/desktopgrid.cpp:392
#67 0x00007f53027e25e8 in KWin::EffectsHandlerImpl::paintWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:199
#68 0x00007f52ec2cefc4 in KWin::BoxSwitchEffect::paintWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=..., data=...)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/boxswitch/boxswitch.cpp:241
#69 0x00007f53027e25e8 in KWin::EffectsHandlerImpl::paintWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:199
#70 0x00007f52ec2f202f in KWin::TranslucencyEffect::paintWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=..., data=...)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/translucency/translucency.cpp:180
#71 0x00007f53027e25e8 in KWin::EffectsHandlerImpl::paintWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:199
#72 0x00007f52ec2ed563 in KWin::LoginEffect::paintWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/login/login.cpp:69
#73 0x00007f53027e25e8 in KWin::EffectsHandlerImpl::paintWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:199
#74 0x00007f5301a536fc in KWin::Effect::paintWindow (this=<value optimized out>, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:242
#75 0x00007f53027e25e8 in KWin::EffectsHandlerImpl::paintWindow (this=0xa40820, w=0xfc4940, mask=41, region=<value optimized out>, data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:199
#76 0x00007f53027cd01c in KWin::Scene::paintWindow (this=<value optimized out>, w=0xfdca60, mask=41, region=..., quads=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/scene.cpp:315
#77 0x00007f53027cdddf in KWin::Scene::paintGenericScreen (this=0x87c950, orig_mask=40) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/scene.cpp:213
#78 0x00007f53027cb72a in KWin::Scene::finalPaintScreen (this=0x87c950, mask=40, region=<value optimized out>, data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/scene.cpp:177
#79 0x00007f53027e2786 in KWin::EffectsHandlerImpl::paintScreen (this=<value optimized out>, mask=40, region=..., data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:172
#80 0x00007f52ec2ee9ef in KWin::LogoutEffect::paintScreen (this=0xd176c0, mask=40, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/logout/logout.cpp:207
#81 0x00007f53027e281e in KWin::EffectsHandlerImpl::paintScreen (this=0xa40820, mask=40, region=..., data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:168
#82 0x00007f52ec31a25e in KWin::BlurEffect::paintScreen (this=<value optimized out>, mask=40, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/blur/blur.cpp:235
#83 0x00007f53027e281e in KWin::EffectsHandlerImpl::paintScreen (this=0xa40820, mask=8, region=..., data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:168
#84 0x00007f52ec2f4e62 in KWin::PresentWindowsEffect::paintScreen (this=0xc558b0, mask=8, region=..., data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/presentwindows/presentwindows.cpp:196
#85 0x00007f53027e281e in KWin::EffectsHandlerImpl::paintScreen (this=0xa40820, mask=8, region=..., data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:168
#86 0x00007f5301a5377f in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:227
#87 0x00007f53027e281e in KWin::EffectsHandlerImpl::paintScreen (this=0xa40820, mask=8, region=..., data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:168
#88 0x00007f5301a5377f in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:227
#89 0x00007f53027e281e in KWin::EffectsHandlerImpl::paintScreen (this=0xa40820, mask=8, region=..., data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:168
#90 0x00007f5301a5377f in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:227
#91 0x00007f53027e281e in KWin::EffectsHandlerImpl::paintScreen (this=0xa40820, mask=8, region=..., data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:168
#92 0x00007f5301a5377f in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:227
#93 0x00007f53027e281e in KWin::EffectsHandlerImpl::paintScreen (this=0xa40820, mask=8, region=..., data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:168
#94 0x00007f5301a5377f in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:227
#95 0x00007f53027e281e in KWin::EffectsHandlerImpl::paintScreen (this=0xa40820, mask=8, region=..., data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:168
#96 0x00007f52ec2d9eb9 in KWin::DesktopGridEffect::paintScreen (this=<value optimized out>, mask=8, region=..., data=...)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/desktopgrid/desktopgrid.cpp:155
#97 0x00007f53027e281e in KWin::EffectsHandlerImpl::paintScreen (this=0xa40820, mask=8, region=..., data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:168
#98 0x00007f52ec2d5642 in KWin::BoxSwitchEffect::paintScreen (this=0xd1d500, mask=8, region=..., data=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/boxswitch/boxswitch.cpp:142
#99 0x00007f53027e281e in KWin::EffectsHandlerImpl::paintScreen (this=0xa40820, mask=8, region=..., data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:168
#100 0x00007f5301a5377f in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:227
#101 0x00007f53027e281e in KWin::EffectsHandlerImpl::paintScreen (this=0xa40820, mask=8, region=..., data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:168
#102 0x00007f5301a5377f in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...)
    at /usr/src/debug/kdebase-workspace-4.5.5/kwin/lib/kwineffects.cpp:227
#103 0x00007f53027e281e in KWin::EffectsHandlerImpl::paintScreen (this=0xa40820, mask=8, region=..., data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:168
#104 0x00007f52ec319de1 in KWin::ZoomEffect::paintScreen (this=<value optimized out>, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects/zoom/zoom.cpp:73
#105 0x00007f53027e281e in KWin::EffectsHandlerImpl::paintScreen (this=0xa40820, mask=8, region=..., data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/effects.cpp:168
#106 0x00007f53027cd245 in KWin::Scene::paintScreen (this=0x87c950, mask=0x7fff166b078c, region=0x7fff166b08b0) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/scene.cpp:137
#107 0x00007f53027db194 in KWin::SceneOpenGL::paint (this=0x87c950, damage=..., toplevels=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/scene_opengl.cpp:758
#108 0x00007f53027c832f in KWin::Workspace::performCompositing (this=0x890640) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/composite.cpp:454
#109 0x00007f5302751c4d in KWin::Workspace::qt_metacall (this=0x890640, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff166b0a60)
    at /usr/src/debug/kdebase-workspace-4.5.5/x86_64-redhat-linux-gnu/kwin/workspace.moc:583
#110 0x00007f530030a716 in QMetaObject::activate (sender=0x890b08, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3295
#111 0x00007f530030691e in QObject::event (this=0x890b08, e=0x7fff166b11b0) at kernel/qobject.cpp:1212
#112 0x00007f52ff4cc39c in QApplicationPrivate::notify_helper (this=0x635240, receiver=0x890b08, e=0x7fff166b11b0) at kernel/qapplication.cpp:4306
#113 0x00007f52ff4d265b in QApplication::notify (this=<value optimized out>, receiver=0x890b08, e=0x7fff166b11b0) at kernel/qapplication.cpp:4189
#114 0x00007f5300f45186 in KApplication::notify (this=0x7fff166b15a0, receiver=0x890b08, event=0x7fff166b11b0) at /usr/src/debug/kdelibs-4.5.5/kdeui/kernel/kapplication.cpp:310
#115 0x00007f53002f7adc in QCoreApplication::notifyInternal (this=0x7fff166b15a0, receiver=0x890b08, event=0x7fff166b11b0) at kernel/qcoreapplication.cpp:726
#116 0x00007f53003203a2 in sendEvent (this=0x635c30) at kernel/qcoreapplication.h:215
#117 QTimerInfoList::activateTimers (this=0x635c30) at kernel/qeventdispatcher_unix.cpp:603
#118 0x00007f530032051c in QEventDispatcherUNIX::processEvents (this=0x613700, flags=...) at kernel/qeventdispatcher_unix.cpp:924
#119 0x00007f52ff56c317 in QEventDispatcherX11::processEvents (this=0x613700, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#120 0x00007f53002f6522 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#121 0x00007f53002f67ec in QEventLoop::exec (this=0x7fff166b14e0, flags=...) at kernel/qeventloop.cpp:201
#122 0x00007f53002f9ebb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1003
#123 0x00007f530276b8e6 in kdemain (argc=<value optimized out>, argv=0x7fff166b15a0) at /usr/src/debug/kdebase-workspace-4.5.5/kwin/main.cpp:531
#124 0x000000319021ec5d in __libc_start_main (main=0x400900 <main(int, char**)>, argc=3, ubp_av=0x7fff166b1b98, init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fff166b1b88) at libc-start.c:226
#125 0x0000000000400839 in _start ()

Possible duplicates by query: bug 263746.

Reported using DrKonqi