"illegal instruction"的错误。。。

millin

redhat 8.0 (Xfree86 4.2.0 )
Ati Mobility 7500 16Mb

其它一切都正常
x八方可以正常启动，总之2d的程序一切都驱动正常
问题在于3d accel
比如tuxracer,启动 选单什么的都很正常
但一到要开始调用3D模块，进入赛道时，就会跳出
终端中报错“illegal instruction”

可是从驱动和log来看一切似乎是对的，无论是识别显卡还是dri的加载，glxgears返回约734.400 FPS

我怀疑下面glxinfo中的这一行信息
“OpenGL renderer string: Mesa DRI Radeon 20010402 AGP 1x x86/MMX/3DNow!/SSE”
为什么会同时有3D NOW! 和SSE?
机器是P4 2.0G ，而且全新安装的RH8上也是如此显示

值得注意的是，在另一台P4 1.4G＋同样显卡的机器上装RH8
则一切都很正常，包括3D
而且glxinfo返回的上面那行中也没有3D NOW!
这难道是个bug?


附录：
＃glxinfo如下：
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: VA Linux Systems, Inc.
OpenGL renderer string: Mesa DRI Radeon 20010402 AGP 1x x86/MMX/3DNow!/SSE
OpenGL version string: 1.2 Mesa 3.4.2
OpenGL extensions:
    GL_ARB_multitexture, GL_ARB_transpose_matrix, GL_EXT_abgr,
    GL_EXT_blend_func_separate, GL_EXT_clip_volume_hint,
    GL_EXT_compiled_vertex_array, GL_EXT_histogram, GL_EXT_packed_pixels,
    GL_EXT_polygon_offset, GL_EXT_rescale_normal, GL_EXT_stencil_wrap,
    GL_EXT_texture3D, GL_EXT_texture_env_add, GL_EXT_texture_env_combine,
    GL_EXT_texture_env_dot3, GL_EXT_texture_object, GL_EXT_texture_lod_bias,
    GL_EXT_vertex_array, GL_MESA_window_pos, GL_MESA_resize_buffers,
    GL_NV_texgen_reflection, GL_PGI_misc_hints, GL_SGIS_pixel_texture,
    GL_SGIS_texture_edge_clamp
glu version: 1.3
glu extensions:
    GLU_EXT_nurbs_tessellator, GLU_EXT_object_space_tess

   visual  x  bf lv rg d st colorbuffer ax dp st accumbuffer  ms  cav
id dep cl sp sz l  ci b ro  r  g  b  a bf th cl  r  g  b  a ns b eat
----------------------------------------------------------------------
0x23 16 tc  0 16  0 r  y  .  5  6  5  0  0 16  0  0  0  0  0  0 0 None
0x24 16 tc  0 16  0 r  y  .  5  6  5  0  0 16  8  0  0  0  0  0 0 Slow
0x25 16 tc  0 16  0 r  y  .  5  6  5  0  0 16  0 16 16 16  0  0 0 Slow
0x26 16 tc  0 16  0 r  y  .  5  6  5  0  0 16  8 16 16 16  0  0 0 Slow
0x27 16 dc  0 16  0 r  y  .  5  6  5  0  0 16  0  0  0  0  0  0 0 None
0x28 16 dc  0 16  0 r  y  .  5  6  5  0  0 16  8  0  0  0  0  0 0 Slow
0x29 16 dc  0 16  0 r  y  .  5  6  5  0  0 16  0 16 16 16  0  0 0 Slow
0x2a 16 dc  0 16  0 r  y  .  5  6  5  0  0 16  8 16 16 16  0  0 0 Slow