[Dri-users] Segfault

[<mp...@pa...>]

Hi all,

I wasn't quite sure if I should write it here (or at unichrome-users).=20
Recently (yesterday afternoon) I updated unichrome driver (from=20
myth.ivor.org), drm module (from dri cvs), libGL and unichrome_dri.so form=
=20
(mesa at dri cvs).=20
Well, if I have a "working" direct rendering (at least it's what glxinfo=20
says) I get segfault right after a window was opened (for example glxgears)=
,=20
however if I disable direct rendering (through removal of unichrome_dri.so,=
=20
or switching to not matching libGL - disabled through unresolved symbols in=
=20
unichrome_dri.so) software rendering does work and does not produce=20
segfaults.

LIBGL_DEBUG=3D"verbose" glxgears output says:

libGL: XF86DRIGetClientDriverName: 4.1.0 unichrome (screen 0)
libGL: OpenDriver: trying /usr/X11R6/lib/modules/dri/unichrome_dri.so
drmOpenByBusid: Searching for BusID PCI:1:0:0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 4, (OK)
drmOpenByBusid: drmOpenMinor returns 4
drmOpenByBusid: drmGetBusid reports pci:0000:01:00.0
__driCreateNewScreen_20050727 - succeeded
Naruszenie ochrony pami=EAci



LIBGL_DEBUG=3D"verbose" glxinfo output says:

name of display: :0.0
libGL: XF86DRIGetClientDriverName: 4.1.0 unichrome (screen 0)
libGL: OpenDriver: trying /usr/X11R6/lib/modules/dri/unichrome_dri.so
drmOpenByBusid: Searching for BusID PCI:1:0:0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 4, (OK)
drmOpenByBusid: drmOpenMinor returns 4
drmOpenByBusid: drmGetBusid reports pci:0000:01:00.0
__driCreateNewScreen_20050727 - succeeded
display: :0 =A0screen: 0
direct rendering: Yes
server glx vendor string: SGI
server glx version string: 1.2
server glx extensions:
=A0 =A0 GLX_ARB_multisample, GLX_EXT_visual_info, GLX_EXT_visual_rating,
=A0 =A0 GLX_EXT_import_context, GLX_OML_swap_method, GLX_SGI_make_current_r=
ead,
=A0 =A0 GLX_SGIS_multisample, GLX_SGIX_fbconfig
client glx vendor string: SGI
client glx version string: 1.4
client glx extensions:
=A0 =A0 GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_conte=
xt,
=A0 =A0 GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_allocate_memor=
y,
=A0 =A0 GLX_MESA_swap_control, GLX_MESA_swap_frame_usage, GLX_OML_swap_meth=
od,
=A0 =A0 GLX_OML_sync_control, GLX_SGI_make_current_read, GLX_SGI_swap_contr=
ol,
=A0 =A0 GLX_SGI_video_sync, GLX_SGIS_multisample, GLX_SGIX_fbconfig,
=A0 =A0 GLX_SGIX_pbuffer, GLX_SGIX_visual_select_group
GLX extensions:
=A0 =A0 GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_conte=
xt,
=A0 =A0 GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_swap_control,
=A0 =A0 GLX_MESA_swap_frame_usage, GLX_OML_swap_method, GLX_SGI_video_sync,
=A0 =A0 GLX_SGIS_multisample, GLX_SGIX_fbconfig
OpenGL vendor string: VIA Technology
OpenGL renderer string: Mesa DRI UniChrome (K8M800) 20050526 x86/MMX+/3DNow!
+/SSE2
OpenGL version string: 1.2 Mesa 6.3.1
OpenGL extensions:
=A0 =A0 GL_ARB_imaging, GL_ARB_multisample, GL_ARB_multitexture,
=A0 =A0 GL_ARB_point_parameters, GL_ARB_texture_env_add,
=A0 =A0 GL_ARB_texture_env_combine, GL_ARB_texture_mirrored_repeat,
=A0 =A0 GL_ARB_transpose_matrix, GL_ARB_window_pos, GL_EXT_abgr, GL_EXT_bgr=
a,
=A0 =A0 GL_EXT_blend_color, GL_EXT_blend_minmax, GL_EXT_blend_subtract,
=A0 =A0 GL_EXT_clip_volume_hint, GL_EXT_compiled_vertex_array, GL_EXT_convo=
lution,
=A0 =A0 GL_EXT_copy_texture, GL_EXT_draw_range_elements, GL_EXT_fog_coord,
=A0 =A0 GL_EXT_histogram, GL_EXT_packed_pixels, GL_EXT_point_parameters,
=A0 =A0 GL_EXT_polygon_offset, GL_EXT_rescale_normal, GL_EXT_secondary_colo=
r,
=A0 =A0 GL_EXT_separate_specular_color, GL_EXT_stencil_wrap, GL_EXT_subtext=
ure,
=A0 =A0 GL_EXT_texture, GL_EXT_texture3D, GL_EXT_texture_edge_clamp,
=A0 =A0 GL_EXT_texture_env_add, GL_EXT_texture_env_combine,
=A0 =A0 GL_EXT_texture_lod_bias, GL_EXT_texture_object, GL_EXT_vertex_array,
=A0 =A0 GL_APPLE_packed_pixels, GL_IBM_rasterpos_clip,
=A0 =A0 GL_IBM_texture_mirrored_repeat, GL_MESA_window_pos, GL_NV_blend_squ=
are,
=A0 =A0 GL_NV_light_max_exponent, GL_NV_texgen_reflection, GL_OES_read_form=
at,
=A0 =A0 GL_SGI_color_matrix, GL_SGI_color_table, GL_SGIS_texture_edge_clamp,
=A0 =A0 GL_SGIS_texture_lod
glu version: 1.3
glu extensions:
=A0 =A0 GLU_EXT_nurbs_tessellator, GLU_EXT_object_space_tess

=A0 =A0visual =A0x =A0bf lv rg d st colorbuffer ax dp st accumbuffer =A0ms =
=A0cav
=A0id dep cl sp sz l =A0ci b ro =A0r =A0g =A0b =A0a bf th cl =A0r =A0g =A0b=
 =A0a ns b eat
=2D---------------------------------------------------------------------
0x22 24 tc =A00 32 =A00 r =A0y =A0. =A08 =A08 =A08 =A08 =A00 24 =A08 =A00 =
=A00 =A00 =A00 =A00 0 None
0x23 24 tc =A00 32 =A00 r =A0. =A0. =A08 =A08 =A08 =A08 =A00 24 =A08 =A00 =
=A00 =A00 =A00 =A00 0 None
0x24 24 tc =A00 32 =A00 r =A0y =A0. =A08 =A08 =A08 =A08 =A00 16 =A00 =A00 =
=A00 =A00 =A00 =A00 0 None
0x25 24 tc =A00 32 =A00 r =A0. =A0. =A08 =A08 =A08 =A08 =A00 16 =A00 =A00 =
=A00 =A00 =A00 =A00 0 None
0x26 24 tc =A00 32 =A00 r =A0y =A0. =A08 =A08 =A08 =A08 =A00 =A00 =A00 =A00=
 =A00 =A00 =A00 =A00 0 None
0x27 24 tc =A00 32 =A00 r =A0. =A0. =A08 =A08 =A08 =A08 =A00 =A00 =A00 =A00=
 =A00 =A00 =A00 =A00 0 None
0x28 24 tc =A00 32 =A00 r =A0y =A0. =A08 =A08 =A08 =A08 =A00 24 =A08 16 16 =
16 16 =A00 0 Slow
0x29 24 tc =A00 32 =A00 r =A0. =A0. =A08 =A08 =A08 =A08 =A00 24 =A08 16 16 =
16 16 =A00 0 Slow
0x2a 24 tc =A00 32 =A00 r =A0y =A0. =A08 =A08 =A08 =A08 =A00 16 =A00 16 16 =
16 16 =A00 0 Slow
0x2b 24 tc =A00 32 =A00 r =A0. =A0. =A08 =A08 =A08 =A08 =A00 16 =A00 16 16 =
16 16 =A00 0 Slow
0x2c 24 tc =A00 32 =A00 r =A0y =A0. =A08 =A08 =A08 =A08 =A00 =A00 =A00 16 1=
6 16 16 =A00 0 Slow
0x2d 24 tc =A00 32 =A00 r =A0. =A0. =A08 =A08 =A08 =A08 =A00 =A00 =A00 16 1=
6 16 16 =A00 0 Slow

It was built using gcc 3.4.4, xorg is 6.8.2, on Acer Aspire 1362 laptop=20
(k8n800, Mobile sempron)

I think it's a problem in mesa tree, since recent driver from myth ivor.org=
=20
does work with backup (built earlier) versions of ilbGL and unichrome_dri.so


Michal

P.S. "Naruszenie ochrony pami=EAci" means "Segmentation fault"