Application: kwin (4.7.00 (4.7.0))
KDE Platform Version: 4.7.00 (4.7.0)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-10-generic i686
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:
The system was just after a reboot (after an update) before I had a chance to do anything.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[KCrash Handler]
#7  0x00000000 in ?? ()
#8  0x001bcd42 in KWin::GLShader::load (this=0x8415490, vertexSource=..., fragmentSource=...) at ../../../kwin/libkwineffects/kwinglutils.cpp:798
#9  0x001bd4ae in KWin::GLShader::loadFromFiles (this=0x8415490, vertexFile=..., fragmentFile=...) at ../../../kwin/libkwineffects/kwinglutils.cpp:745
#10 0x001bd855 in KWin::GLShader::GLShader (this=0x8415490, vertexfile=..., fragmentfile=...) at ../../../kwin/libkwineffects/kwinglutils.cpp:719
#11 0x001c0aa2 in KWin::ShaderManager::initShaders (this=0x8408e28) at ../../../kwin/libkwineffects/kwinglutils.cpp:1220
#12 0x001c112d in KWin::ShaderManager::ShaderManager (this=0x8408e28) at ../../../kwin/libkwineffects/kwinglutils.cpp:1077
#13 0x001c1187 in KWin::ShaderManager::instance () at ../../../kwin/libkwineffects/kwinglutils.cpp:1059
#14 0x00a4b92c in KWin::SceneOpenGL::SceneOpenGL (this=0x8414888, ws=0xb6140f90) at ../../kwin/scene_opengl_glx.cpp:96
#15 0x00a36685 in KWin::Workspace::setupCompositing (this=0xb6140f90) at ../../kwin/composite.cpp:128
#16 0x009aea1f in KWin::Workspace::Workspace (this=0xb6140f90, restore=true) at ../../kwin/workspace.cpp:225
#17 0x009c9290 in KWin::Application::Application (this=0xbfb7f7a0) at ../../kwin/main.cpp:319
#18 0x009cb18d in kdemain (argc=3, argv=0xbfb7fa14) at ../../kwin/main.cpp:488
#19 0x080485bb in main (argc=3, argv=0xbfb7fa14) at kwin_dummy.cpp:3

Possible duplicates by query: bug 278993, bug 277271, bug 277073, bug 276230, bug 275679.

Reported using DrKonqi