http://bugs.freedesktop.org/show_bug.cgi?id=13571
Summary: blender crash in triangle_twoside_flat on mga
Product: Mesa
Version: unspecified
Platform: Other
URL: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=453008
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: Mesa core
AssignedTo: mesa3d-dev@lists.sourceforge.net
ReportedBy: [EMAIL PROTECTED]
Reported by James Dietrich on the Debian BTS on Nov 26th. He's using Debian
Mesa 7.0.2 and a 2.6.22.5 kernel on
VGA compatible controller: Matrox Graphics, Inc. MGA G400/G450
Mesa 7.0.2 fixed a crash of blender on mga (in
_generic_read_RGBA_span_RGB565_MMX). Now, blender still crashes at startup,
with a different backtrace.
Blender (2.45-1) crashes on startup in mga_dri.so:
guessing 'blender-bin' == '/usr/bin/blender-bin'
Compiled with Python version 2.4.4.
Checking for installed Python... got it!
/usr/bin/blender: line 46: 23243 Segmentation fault blender-bin
"$@"
(gdb) bt full
#0 triangle_twoside_flat (ctx=0x8ad0ae0, e0=1, e1=2, e2=0)
at ../../../../../src/mesa/tnl_dd/t_dd_tritmp.h:202
vbcolor = <value optimized out>
VB = (struct vertex_buffer *) 0x8b18948
mmesa = (mgaContextPtr) 0x8acb1b0
#1 0xb68e4f4e in _tnl_render_poly_verts (ctx=0x8ad0ae0, start=0, count=32,
flags=57) at tnl/t_vb_rendertmp.h:313
efstart = <value optimized out>
efcount = <value optimized out>
j = 3
tnl = (TNLcontext *) 0x8b18508
TriangleFunc = (const tnl_triangle_func) 0xb6837580
<triangle_twoside_flat>
stipple = 0 '\0'
#2 0xb68e60d6 in run_render (ctx=0x8ad0ae0, stage=0x8b18704)
at tnl/t_vb_render.c:320
prim = 3013300288
start = 0
length = <value optimized out>
i = 0
tnl = (TNLcontext *) 0x8b18508
tab = (tnl_render_func *) 0xb6a0d260
pass = 0
__PRETTY_FUNCTION__ = "run_render"
#3 0xb68dd573 in _tnl_run_pipeline (ctx=0x8ad0ae0) at tnl/t_pipeline.c:158
tnl = (TNLcontext *) 0x8b18508
__tmp = 895
i = 7
mask = 63
#4 0xb6819e65 in mgaRunPipeline (ctx=0x8ad0ae0) at mgastate.c:1063
mmesa = (mgaContextPtr) 0x8acb1b0
#5 0xb68ddaf1 in _tnl_draw_prims (ctx=0x8ad0ae0, arrays=0x8b06920,
prim=0x8b0547c, nr_prims=1, ib=0x0, min_index=0, max_index=31)
at tnl/t_draw.c:402
bo = {0x80b6e32, 0x80b6e30, 0x8b06778, 0x0, 0x1, 0x403, 0x0,
0xb75a1a98, 0x80b6e2c, 0xb69870d1, 0x807bb24, 0x1, 0xb7f59ff4, 0x8b08518,
0xbfb35cb8, 0xbfb35cd4, 0x0, 0x807bb24, 0xbfb35cb8, 0xb7f5a7c4, 0x17, 0x0, 0x1,
0x0, 0x1, 0xb6819a11, 0x8aeca48, 0x8aecc50, 0xbfb35c38, 0xb688feab, 0x8aeccc0,
0xb6a0d1e0, 0x40}
nr_bo = 0
tnl = (TNLcontext *) 0x8b18508
#6 0xb68d66e0 in vbo_exec_vtx_flush (exec=0x8b05358)
at vbo/vbo_exec_draw.c:215
ctx = (GLcontext *) 0x8ad0ae0
#7 0xb68d21f8 in vbo_exec_wrap_buffers (exec=0x8b05358)
at vbo/vbo_exec_api.c:80
last_count = 32
__PRETTY_FUNCTION__ = "vbo_exec_wrap_buffers"
#8 0xb68d2346 in vbo_exec_fixup_vertex (ctx=<value optimized out>, attr=3,
sz=4) at vbo/vbo_exec_api.c:218
exec = (struct vbo_exec_context *) 0x8b05358
i = <value optimized out>
id = {0, 0, 0, 1}
#9 0xb68d52b2 in vbo_Color4f (x=0, y=0, z=0, w=0.882353008)
at vbo/vbo_attrib_tmp.h:163
No locals.
#10 0xb6964a23 in loopback_Color4ub_f (red=<value optimized out>, green=<value
optimized out>, blue=0 '\0', alpha=<value optimized out>)
at main/api_loopback.c:228
No locals.
#11 0x08139c04 in BIF_ThemeColorShadeAlpha ()
No symbol table info available.
#12 0x08178efd in ?? ()
No symbol table info available.
#13 0x00000021 in ?? ()
No symbol table info available.
#14 0x00000000 in ?? ()
No symbol table info available.
See the Debian bug for full lspci output and Xorg.log.
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