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[Uwe Geuder <ubuntuLp-ugeuder@xxxxxxxxxxxxxx>]

Before reporting upstream, we probably have to try their newest version.  In order to get at all started with that code I first built
the Ubuntu source.

The Maverick debian package builds mesa obviously in 9 configurations

mesa-7.9~git20100924/build/osmesa32-static/config.status
mesa-7.9~git20100924/build/swx11+glu/config.status	
mesa-7.9~git20100924/build/osmesa/config.status
mesa-7.9~git20100924/build/osmesa16-static/config.status
mesa-7.9~git20100924/build/osmesa32/config.status
mesa-7.9~git20100924/build/swx11+glu-static/config.status
mesa-7.9~git20100924/build/osmesa16/config.status
mesa-7.9~git20100924/build/dri/config.status
mesa-7.9~git20100924/build/osmesa-static/config.status

I have really no clue what they are all about, so I checked what
glxgears uses from the mesa source package. There are 3 libraries:


/usr/lib/mesa/libGL.so.1.2:    Package: libgl1-mesa-glx Source: mesa
/usr/lib/libGLU.so.1.3.070900: Package: libglu1-mesa    Source: mesa
/usr/lib/dri/r200_dri.so:      Package: libgl1-mesa-dri Source: mesa

libGL.so.1.2 is built in the dri configuration.
libGLU.so.1.3.070900 is built in the wx11+glu configuration.
r200_dri.so is built in the dri configuration.

So I just guessed that the dri configuration might the relevant one here
and built the newest mesa as follows:

git clone git://anongit.freedesktop.org/mesa/mesa
cd mesa
./autogen.sh '--build=i686-linux-gnu' '--with-driver=dri' 
   '--with-dri-drivers=r200' '--with-egl-displays=x11 drm' 
   '--enable-glx-tls' '--with-state-trackers=egl,glx,dri,vega' 
   '--enable-gles-overlay' '--enable-gles1' '--enable-gles2' 
   '--enable-driglx-direct' '--disable-glu' '--disable-glut' '--disable-glw' 
   '--enable-debug' 'CFLAGS=-Wall -g -O0' 
   '--with-dri-searchpath=/usr/lib/dri:/usr/lib32/dri' 
   'build_alias=i686-linux-gnu' 'LDFLAGS=-Wl,-Bsymbolic-functions' 
   'CPPFLAGS=' 'CXXFLAGS=-g -O0' 
make
cd lib
LIBGL_DRIVERS_PATH=. glxgears
Mesa: Mesa 7.10-devel DEBUG build Oct  8 2010 11:17:51
Mesa warning: couldn't open libtxc_dxtn.so, software DXTn compression/decompression unavailable
Running synchronized to the vertical refresh.  The framerate should be
approximately the same as the monitor refresh rate.
253 frames in 5.0 seconds = 50.547 FPS
251 frames in 5.0 seconds = 50.118 FPS
glxgears: ../../radeon/radeon_cs_gem.c:181: cs_gem_write_reloc: Assertion `boi->space_accounted' failed.
Aborted

(The assertion is sometimes hit immediately, sometimes first when
resizing the window)

My configuration options were some wild guessing merge of Maverick's
mesa-7.9~git20100924/build/dri/config.status and the instructions given
in https://bugs.freedesktop.org/show_bug.cgi?id=29066, together with the
assumption that gallium is not applicable to r200.

Not sure where the debugging info should be written. There was nothing
in syslog.

This is the call stack:

#0  0x0012e416 in __kernel_vsyscall ()
#1  0x003bb941 in raise () from /lib/libc.so.6
#2  0x003bee42 in abort () from /lib/libc.so.6
#3  0x003b48e8 in __assert_fail () from /lib/libc.so.6
#4  0x00afc158 in ?? () from /lib/libdrm_radeon.so.1
#5  0x00afcd80 in radeon_cs_write_reloc () from /lib/libdrm_radeon.so.1
#6  0x0071de59 in ctx_emit_cs (ctx=0x8072a70, atom=0x806dc30)
    at r200_state_init.c:575
#7  0x0074c3d2 in radeon_emit_atom (radeon=0x806d730, atom=0x806dc30)
    at radeon_common.c:1032
#8  0x0074c512 in radeonEmitAtoms (radeon=0x806d730, emitAll=0 '\000')
    at radeon_common.c:1056
#9  0x0074c708 in radeonEmitState (radeon=0x806d730) at radeon_common.c:1099
#10 0x00726f36 in r200AllocEltsOpenEnded (rmesa=0x806d730, primitive=532, 
    min_nr=6) at r200_cmdbuf.c:210
#11 0x0072cb96 in r200AllocElts (rmesa=0x806d730, nr=6) at r200_tcl.c:164
#12 0x0072d65d in tcl_render_tri_fan_verts (ctx=0x8072a70, start=0, count=4, 
    flags=54) at ../../../../../src/mesa/tnl_dd/t_dd_dmatmp2.h:380
#13 0x0072e574 in r200EmitPrimitive (ctx=0x8072a70, first=0, last=4, flags=54)
    at r200_tcl.c:249
#14 0x0072f0f9 in r200_run_tcl_render (ctx=0x8072a70, stage=0x80c5158)
    at r200_tcl.c:562
#15 0x0086a0a1 in _tnl_run_pipeline (ctx=0x8072a70) at tnl/t_pipeline.c:153
---Type <return> to continue, or q <return> to quit---
#16 0x0071ba76 in r200WrapRunPipeline (ctx=0x8072a70) at r200_state.c:2460
#17 0x0086b342 in _tnl_draw_prims (ctx=0x8072a70, arrays=0x80b35dc, 
    prim=0xbffff0c0, nr_prims=1, ib=0x0, min_index=0, max_index=3)
    at tnl/t_draw.c:478
#18 0x0086b0af in _tnl_vbo_draw_prims (ctx=0x8072a70, arrays=0x80b35dc, 
    prim=0xbffff0c0, nr_prims=1, ib=0x0, index_bounds_valid=1 '\001', 
    min_index=0, max_index=3) at tnl/t_draw.c:384
#19 0x0085dce4 in vbo_exec_DrawArrays (mode=6, start=0, count=4)
    at vbo/vbo_exec_array.c:526
#20 0x0085f292 in _mesa_DrawArrays (mode=6, first=0, count=4)
    at vbo/vbo_exec_array.c:1159
#21 0x008f64a9 in _mesa_meta_Clear (ctx=0x8072a70, buffers=18)
    at drivers/common/meta.c:1472
#22 0x0074d10d in radeonUserClear (ctx=0x8072a70, mask=18)
    at radeon_common.c:1332
#23 0x007151c3 in r200Clear (ctx=0x8072a70, mask=0) at r200_ioctl.c:249
#24 0x0078795c in _mesa_Clear (mask=16640) at main/clear.c:179
#25 0x080492db in ?? ()
#26 0x0804a882 in ?? ()
#27 0x003a7ce7 in __libc_start_main () from /lib/libc.so.6
#28 0x080490c1 in ?? ()

(that looks identical to the amd64 stack originally submitted by Daniel
Richard G.)

So the assertion happens actually in libdrm_radeon.so, although it's
directly called from the new code built by me. Maybe we should check
also with the newest version of libdrm_radeon.so ??? All input welcome,
I'm just playing around here without really knowing what I'm doing.


** Bug watch added: freedesktop.org Bugzilla #29066
   http://bugs.freedesktop.org/show_bug.cgi?id=29066

-- 
[R200] ../../radeon/radeon_cs_gem.c:181: cs_gem_write_reloc: Assertion `boi->space_accounted' failed.
https://bugs.launchpad.net/bugs/656100
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