Package: xlibmesa-gl-dev
Version: 4.3.0.dfsg.1-5
Severity: important
I'm not entirely sure if this is a SDL or GL bug, but the following
let's me suspect that something is wrong with GL.
$ glxinfo
name of display: :0.0
display: :0 screen: 0
direct rendering: Yes
server glx vendor string: SGI
server glx version string: 1.2
server glx extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context
client glx vendor string: SGI
client glx version string: 1.2
client glx extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context
GLX extensions:
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context
OpenGL vendor string: Tungsten Graphics, Inc.
OpenGL renderer string: Mesa DRI Radeon 20020611 AGP 1x x86/MMX/3DNow!/SSE TCL
OpenGL version string: 1.2 Mesa 4.0.4
...
$ cat aa.c
#include "SDL.h"
int main()
{
SDL_Init(SDL_INIT_VIDEO);
SDL_SetVideoMode(640,480,24,SDL_OPENGL);
SDL_Quit();
}
$ gcc aa.c -lGL -lGLU `sdl-config --cflags --libs` && ./a.out
[runs ok]
$ gcc aa.c -lGLU -lGL `sdl-config --cflags --libs` && ./a.out
Fatal signal: Segmentation Fault (SDL Parachute Deployed)
As soon as -lGL is linked in after -lGLU, the program
crashes when using direct rendering (LIBGL_ALWAYS_INDIRECT not set);
without accel (LGL_A_I set), it works fine.
Setting LIBGL_DEBUG for the first program results in no output, the
crashing second program outputs:
GL User Error: calling glGetString(0x1f03); without a current context
The program crashes in the strstr-function, unfortunately, the stack
is corrupted, and I didn't managed to obtain a more helpful
backtrace.
The installed xlibmesa-dri version is 4.3.0.dfsg.1-5
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.6-2-k7
Locale: [EMAIL PROTECTED], LC_CTYPE=de_DE (ignored: LC_ALL set to de_DE)
Versions of packages xlibmesa-gl-dev depends on:
ii libc6-dev [libc-dev] 2.3.2.ds1-13 GNU C Library: Development Librari
ii libx11-dev 4.3.0.dfsg.1-5 X Window System protocol client li
ii libxext-dev 4.3.0.dfsg.1-5 X Window System miscellaneous exte
ii x-dev 4.3.0.dfsg.1-5 X protocol development files
ii xlibmesa-gl 4.3.0.dfsg.1-5 Mesa 3D graphics library [XFree86]
-- no debconf information
