[Bug 28656] New: [r300g] xscreensaver hack "endgame" crashes

[Bug 28656] New: [r300g] xscreensaver hack "endgame" crashes

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=28656

           Summary: [r300g] xscreensaver hack "endgame" crashes
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/r300
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: rankincj@googlemail.com


Created an attachment (id=36409)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=36409)
Backtrace from endgame crash

The OpenGL xscreensaver hack "endgame" crashes almost immediately with Gallium
from git. I have a Radeon RV350 running with Fedora 13's Xserver and the
xorg-ati-drv from git.

The backtrace is attached: it looks like heap corruption.

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[Bug 28656] [r300g] xscreensaver hack "endgame" crashes

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=28656

--- Comment #1 from Chris Rankin <rankincj@googlemail.com> 2010-06-21 16:57:01 PDT ---
And it looks like I do need to include the "-fps" command line parameter to
trigger the crash.

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[Bug 28656] [r300g] xscreensaver hack "endgame" crashes

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=28656

--- Comment #2 from Chris Rankin <rankincj@googlemail.com> 2010-06-22 12:24:20 PDT ---
Created an attachment (id=36422)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=36422)
Output from valgrind

This looks like the important part:

==10496== Invalid write of size 8
==10496==    at 0x5005289: ???
==10496==    by 0x4667387: fetch_pipeline_generic
(draw_pt_fetch_shade_pipeline.c:188)
==10496==    by 0x4667577: fetch_pipeline_run
(draw_pt_fetch_shade_pipeline.c:312)
==10496==    by 0x46692E0: vcache_run_extras (draw_pt_vcache.c:80)
==10496==    by 0x4665EAC: draw_arrays_instanced (draw_pt.c:127)
==10496==    by 0x4666025: draw_arrays (draw_pt.c:310)
==10496==    by 0x4649C20: st_feedback_draw_vbo (st_draw_feedback.c:257)
==10496==    by 0x464430C: st_RasterPos (st_cb_rasterpos.c:254)
==10496==    by 0x4596C37: rasterpos (rastpos.c:63)
==10496==    by 0x4597168: _mesa_RasterPos2f (rastpos.c:76)
==10496==    by 0x80513E5: get_gl_visual (visual-gl.c:65)
==10496==    by 0x8051FD0: make_random_colormap (colors.c:649)
==10496==  Address 0x4d819e0 is not stack'd, malloc'd or (recently) free'd

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[Bug 28656] [Gallium/Draw][r300g] xscreensaver hack "endgame" crashes

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=28656

Marek Olšák <maraeo@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[r300g] xscreensaver hack   |[Gallium/Draw][r300g]
                   |"endgame" crashes           |xscreensaver hack "endgame"
                   |                            |crashes

--- Comment #3 from Marek Olšák <maraeo@gmail.com> 2010-06-22 14:20:57 PDT ---
Another bug in Draw.

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[Bug 28656] [Gallium/Draw][r300g] xscreensaver hack "endgame" crashes

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=28656

Chris Rankin <rankincj@googlemail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #4 from Chris Rankin <rankincj@googlemail.com> 2010-06-26 04:30:08 PDT ---
I've just updated to the following revision:

commit 4503bd33dac04bb925780852e49f2ffa501ebc0a
Author: Zack Rusin <zackr@vmware.com>
Date:   Fri Jun 25 20:06:53 2010 -0400

    draw: deleted by mistake

and this bug is no longer present. (I have no idea which commit has actually
fixed it though.)

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