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skankerror · 09-22-2010, 06:02 AM,

Code:
ray@intelinux:~/vdrift$ gdb build/vdrift

GNU gdb (GDB) 7.1-ubuntu

Copyright (C) 2010 Free Software Foundation, Inc.

License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software: you are free to change and redistribute it.

There is NO WARRANTY, to the extent permitted by law.  Type "show copying"

and "show warranty" for details.

This GDB was configured as "i486-linux-gnu".

For bug reporting instructions, please see:

<http://www.gnu.org/software/gdb/bugs/>...

Reading symbols from /home/ray/vdrift/build/vdrift...done.

(gdb) run -verbose

Starting program: /home/ray/vdrift/build/vdrift -verbose

[Thread debugging using libthread_db enabled]

INFO: Starting VDrift: development-full, Version: 2858, O/S: Unix-like

INFO: Home directory: /home/ray

INFO: Settings file: /home/ray/.vdrift/VDrift.config (does not exist, will be created)

INFO: Data directory: /usr/local/share/games/vdrift/data

      DATA_DIR: /usr/local/share/games/vdrift/data

INFO: Log file: /home/ray/.vdrift/log.txt

INFO: The last VDrift startup was unsuccessful.

      Settings have been set to failsafe defaults.

      Your original VDrift.config file was backed up to VDrift.config.backup

[New Thread 0xa740eb70 (LWP 4868)]

[Thread 0xa740eb70 (LWP 4868) exited]

INFO: SDL initialization successful

INFO: SDL video query was successful

INFO: Disabling antialiasing

INFO: Display change was successful: 800x600x16 16z fullscreen=0

INFO: Video card information:

      Vendor: NVIDIA Corporation

      Renderer: GeForce4 MX 440 with AGP8X/AGP/SSE2

      Version: 1.5.8 NVIDIA 96.43.18

      Maximum texture size: 2048

      Maximum varying floats: 8

      Using GLEW 1.5.2

INFO: Your video card doesn't support framebuffer objects.  Disabling shaders.

Program received signal SIGSEGV, Segmentation fault.

0x00000000 in ?? ()

(gdb) backtrace

#0  0x00000000 in ?? ()

#1  0x082021ab in TEXTURE::LoadCubeVerticalCross (this=0xbfff9ef4, info=..., error=...)

    at src/texture.cpp:280

#2  0x082022a4 in TEXTURE::LoadCube (this=0xbfff9ef4, info=..., error=...)

    at src/texture.cpp:295

#3  0x08203791 in TEXTURE::Load (this=0xbfff9ef4, info=..., error=...) at src/texture.cpp:517

#4  0x0812aef8 in GRAPHICS_SDLGL::Init (this=0xbfff9e54, shaderpath=..., windowcaption=..., 

    resx=800, resy=600, bpp=16, depthbpp=16, fullscreen=false, shaders=false, antialiasing=0, 

    enableshadows=false, new_shadow_distance=1, new_shadow_quality=1, reflection_type=1, 

    static_reflectionmap_file=..., static_ambientmap_file=..., anisotropy=0, texturesize=..., 

    lighting_quality=0, newbloom=false, newnormalmaps=false, renderconfig=..., 

    info_output=..., error_output=...) at src/graphics.cpp:237

#5  0x080ecae9 in GAME::InitializeCoreSubsystems (this=0xbfff9968) at src/game.cpp:243

#6  0x080eb602 in GAME::Start (this=0xbfff9968, args=...) at src/game.cpp:114

#7  0x081c169e in main (argc=2, argv=0xbffff4d4) at src/main.cpp:72

(gdb)

I run it on ubuntustudio 10.04, with a rt-kernel that I compiled, but this problem happens also with ubuntu generic kernel.

This segmentation fault happens since several weeks with previous svn versions.

skankerror · 09-22-2010, 06:20 AM,

After reading this http://vdrift.net/Forum/viewtopic.php?t=1371 I changed glGenerateMipmapEXT(GL_TEXTURE_CUBE_MAP) to glGenerateMipmap(GL_TEXTURE_CUBE_MAP) in texture.cpp but the output is the same.

NaN · 09-22-2010, 07:05 AM,

The glew version should be 1.5.4 I think. I wonder if there is a way to check the glew version before linking.

Another related thread: http://vdrift.net/Forum/viewtopic.php?t=1384

skankerror · 09-22-2010, 07:49 AM,

I updated glew to 1.5.6 :

Code:
ray@intelinux:~/vdrift$ gdb build/vdrift

GNU gdb (GDB) 7.1-ubuntu

Copyright (C) 2010 Free Software Foundation, Inc.

License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software: you are free to change and redistribute it.

There is NO WARRANTY, to the extent permitted by law.  Type "show copying"

and "show warranty" for details.

This GDB was configured as "i486-linux-gnu".

For bug reporting instructions, please see:

<http://www.gnu.org/software/gdb/bugs/>...

Reading symbols from /home/ray/vdrift/build/vdrift...done.

(gdb) run -verbose

Starting program: /home/ray/vdrift/build/vdrift -verbose

[Thread debugging using libthread_db enabled]

INFO: Starting VDrift: development-full, Version: 2858, O/S: Unix-like

INFO: Home directory: /home/ray

INFO: Settings file: /home/ray/.vdrift/VDrift.config (does not exist, will be created)

INFO: Data directory: /usr/local/share/games/vdrift/data

      DATA_DIR: /usr/local/share/games/vdrift/data

INFO: Log file: /home/ray/.vdrift/log.txt

INFO: The last VDrift startup was unsuccessful.

      Settings have been set to failsafe defaults.

      Your original VDrift.config file was backed up to VDrift.config.backup

[New Thread 0xa7402b70 (LWP 7667)]

[Thread 0xa7402b70 (LWP 7667) exited]

INFO: SDL initialization successful

INFO: SDL video query was successful

INFO: Disabling antialiasing

INFO: Display change was successful: 800x600x16 16z fullscreen=0

INFO: Video card information:

      Vendor: NVIDIA Corporation

      Renderer: GeForce4 MX 440 with AGP8X/AGP/SSE2

      Version: 1.5.8 NVIDIA 96.43.18

      Maximum texture size: 2048

      Maximum varying floats: 8

      Using GLEW 1.5.6

INFO: Your video card doesn't support framebuffer objects.  Disabling shaders.

Program received signal SIGSEGV, Segmentation fault.

0x00000000 in ?? ()

(gdb) backtrace

#0  0x00000000 in ?? ()

#1  0x082021ab in TEXTURE::LoadCubeVerticalCross (this=0xbfff9ef4, info=..., error=...)

    at src/texture.cpp:280

#2  0x082022a4 in TEXTURE::LoadCube (this=0xbfff9ef4, info=..., error=...)

    at src/texture.cpp:295

#3  0x08203791 in TEXTURE::Load (this=0xbfff9ef4, info=..., error=...) at src/texture.cpp:517

#4  0x0812aef8 in GRAPHICS_SDLGL::Init (this=0xbfff9e54, shaderpath=..., windowcaption=..., 

    resx=800, resy=600, bpp=16, depthbpp=16, fullscreen=false, shaders=false, antialiasing=0, 

    enableshadows=false, new_shadow_distance=1, new_shadow_quality=1, reflection_type=1, 

    static_reflectionmap_file=..., static_ambientmap_file=..., anisotropy=0, texturesize=..., 

    lighting_quality=0, newbloom=false, newnormalmaps=false, renderconfig=..., 

    info_output=..., error_output=...) at src/graphics.cpp:237

#5  0x080ecae9 in GAME::InitializeCoreSubsystems (this=0xbfff9968) at src/game.cpp:243

#6  0x080eb602 in GAME::Start (this=0xbfff9968, args=...) at src/game.cpp:114

#7  0x081c169e in main (argc=2, argv=0xbffff4d4) at src/main.cpp:72

It seems nothing changed

NaN · 09-22-2010, 08:21 AM,

Can you try 2859?

skankerror · 09-22-2010, 09:34 AM,

Code:
ray@intelinux:~/vdrift$ gdb build/vdrift

GNU gdb (GDB) 7.1-ubuntu

Copyright (C) 2010 Free Software Foundation, Inc.

License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software: you are free to change and redistribute it.

There is NO WARRANTY, to the extent permitted by law.  Type "show copying"

and "show warranty" for details.

This GDB was configured as "i486-linux-gnu".

For bug reporting instructions, please see:

<http://www.gnu.org/software/gdb/bugs/>...

Reading symbols from /home/ray/vdrift/build/vdrift...done.

(gdb) run -verbose

Starting program: /home/ray/vdrift/build/vdrift -verbose

[Thread debugging using libthread_db enabled]

INFO: Starting VDrift: development-full, Version: 2861, O/S: Unix-like

INFO: Home directory: /home/ray

INFO: Settings file: /home/ray/.vdrift/VDrift.config (does not exist, will be created)

INFO: Data directory: /usr/local/share/games/vdrift/data

      DATA_DIR: /usr/local/share/games/vdrift/data

INFO: Log file: /home/ray/.vdrift/log.txt

INFO: The last VDrift startup was unsuccessful.

      Settings have been set to failsafe defaults.

      Your original VDrift.config file was backed up to VDrift.config.backup

[New Thread 0xa727ab70 (LWP 9805)]

[Thread 0xa727ab70 (LWP 9805) exited]

INFO: SDL initialization successful

INFO: SDL video query was successful

INFO: Disabling antialiasing

INFO: Display change was successful: 800x600x16 16z fullscreen=0

INFO: Video card information:

      Vendor: NVIDIA Corporation

      Renderer: GeForce4 MX 440 with AGP8X/AGP/SSE2

      Version: 1.5.8 NVIDIA 96.43.18

      Maximum texture size: 2048

      Maximum varying floats: 8

      Using GLEW 1.5.6

INFO: Your video card doesn't support framebuffer objects.  Disabling shaders.

Program received signal SIGSEGV, Segmentation fault.

0x00000000 in ?? ()

(gdb) backtrace

#0  0x00000000 in ?? ()

#1  0x082021a3 in TEXTURE::LoadCubeVerticalCross (this=0xbfff9ef0, info=..., error=...)

    at src/texture.cpp:282

#2  0x0820229c in TEXTURE::LoadCube (this=0xbfff9ef0, info=..., error=...)

    at src/texture.cpp:298

#3  0x08203789 in TEXTURE::Load (this=0xbfff9ef0, info=..., error=...) at src/texture.cpp:520

#4  0x0812aedc in GRAPHICS_SDLGL::Init (this=0xbfff9e50, shaderpath=..., windowcaption=..., 

    resx=800, resy=600, bpp=16, depthbpp=16, fullscreen=false, shaders=false, antialiasing=0, 

    enableshadows=false, new_shadow_distance=1, new_shadow_quality=1, reflection_type=1, 

    static_reflectionmap_file=..., static_ambientmap_file=..., anisotropy=0, texturesize=..., 

    lighting_quality=0, newbloom=false, newnormalmaps=false, renderconfig=..., 

    info_output=..., error_output=...) at src/graphics.cpp:237

#5  0x080ecacd in GAME::InitializeCoreSubsystems (this=0xbfff9964) at src/game.cpp:243

#6  0x080eb5e6 in GAME::Start (this=0xbfff9964, args=...) at src/game.cpp:114

#7  0x081c1682 in main (argc=2, argv=0xbffff4d4) at src/main.cpp:72

NaN · 09-22-2010, 09:47 AM,

Replace GL_EXT_framebuffer_object with GLEW_ARB_framebuffer_object in texture.cpp line 280.

NaN · 09-22-2010, 09:50 AM,

Can you also try GLEW_EXT_framebuffer_object. Thanks.

skankerror · 09-22-2010, 10:21 AM,

Well...

with GLEW_ARB and GLEW_EXT I have no more seg fault.

Instead I have black window with some blue at right side and this output repeating endless:

Code:
ERROR: OpenGL error "invalid operation" during: render finish

ERROR: OpenGL error "invalid operation" during: render finish

ERROR: OpenGL error "invalid operation" during: render finish

ERROR: OpenGL error "invalid operation" during: render finish

ERROR: OpenGL error "invalid operation" during: render finish

ERROR: OpenGL error "invalid operation" during: render finish

ERROR: OpenGL error "invalid operation" during: render finish

ERROR: OpenGL error "invalid operation" during: render finish

ERROR: OpenGL error "invalid operation" during: render finish

ERROR: OpenGL error "invalid operation" during: BeginScene

I was thinking about a problem whith my glew update (I used ugly 'dpkg --force-overwrite'), so I downgraded to a clean ubuntu libglew 1.5.2 but nothing changed.

NaN · 09-22-2010, 10:42 AM,

Interesting. We need to identify the call causing an "invalid operation".

Have a look at graphics.cpp line 351: void GRAPHICS_SDLGL::BeginScene(std::ostream & error_output)

Can you insert OPENGL_UTILITY::CheckForOpenGLErrors after each gl.... call to see which one fails.

skankerror · 09-22-2010, 10:50 AM,

I think I need some C++ lessons, I've made this :

Code:
void GRAPHICS_SDLGL::BeginScene(std::ostream & error_output)

{

    glstate.Disable(GL_TEXTURE_2D);

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glShadeModel( GL_SMOOTH );

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glClearColor(0,0,0,0);

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glClearDepth( 1.0f );

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glstate.Enable(GL_DEPTH_TEST);

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glDepthFunc( GL_LEQUAL );

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST );

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glstate.Disable(GL_LIGHTING);

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glstate.SetColor(0.5,0.5,0.5,1.0);

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glPolygonOffset(-1.0,-1.0);

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    OPENGL_UTILITY::CheckForOpenGLErrors("BeginScene", error_output);

}

and when compiling :

Code:
src/graphics.cpp: In member function âvoid GRAPHICS_SDLGL::BeginScene(std::ostream&)â:

src/graphics.cpp:354: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:354: warning: statement has no effect

src/graphics.cpp:356: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:356: warning: statement has no effect

src/graphics.cpp:358: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:358: warning: statement has no effect

src/graphics.cpp:360: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:360: warning: statement has no effect

src/graphics.cpp:362: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:362: warning: statement has no effect

src/graphics.cpp:364: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:364: warning: statement has no effect

src/graphics.cpp:366: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:366: warning: statement has no effect

src/graphics.cpp:368: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:368: warning: statement has no effect

src/graphics.cpp:370: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:370: warning: statement has no effect

src/graphics.cpp:372: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:372: warning: statement has no effect

I stopped this cos I must be wrong...

NaN · 09-22-2010, 10:53 AM,

Copy paste: OPENGL_UTILITY::CheckForOpenGLErrors("BeginScene", error_output);

Replace "BeginScene" with a unique string per call ("1", "2", ...).

skankerror · 09-22-2010, 11:17 AM,

Sorry I don't understand, I tried but I failed, can you be more explicit ?

NaN · 09-22-2010, 11:25 AM,

Like this: http://www.pasteall.org/15772

skankerror · 09-22-2010, 11:31 AM,

Code:
ERROR: OpenGL error "invalid operation" during: 0

ERROR: OpenGL error "invalid operation" during: render finish

ERROR: OpenGL error "invalid operation" during: render finish

ERROR: OpenGL error "invalid operation" during: render finish

ERROR: OpenGL error "invalid operation" during: render finish

ERROR: OpenGL error "invalid operation" during: render finish

ERROR: OpenGL error "invalid operation" during: render finish

ERROR: OpenGL error "invalid operation" during: render finish

ERROR: OpenGL error "invalid operation" during: render finish

ERROR: OpenGL error "invalid operation" during: render finish

^C

Program received signal SIGINT, Interrupt.

0xb7fe2424 in __kernel_vsyscall ()

(gdb) backtrace

#0  0xb7fe2424 in __kernel_vsyscall ()

#1  0xb7c44b86 in poll () from /lib/tls/i686/cmov/libc.so.6

#2  0xb7b2761b in ?? () from /usr/lib/nvidia-96/libGL.so.1

Cannot access memory at address 0xc1d0006f

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