[Bug 41579] New: R300 Segfaults when using mupen64plus

[Bug 41579] New: R300 Segfaults when using mupen64plus

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=41579

           Summary: R300 Segfaults when using mupen64plus
           Product: Mesa
           Version: 7.11
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Drivers/DRI/r300
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: krthurow@gmail.com


Created an attachment (id=52103)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=52103)
Backtrace from r300 segfault when running mupen64plus.

When starting up the emulator mupen64plus with a ROM, it crashes before loading
the ROM, showing a segfault. Video card is a Mobility Radeon X1700.

Using gdb I traced the segfault back to r300_dri.so
The issues seems to be at line 864 of src/gallium/drivers/r300/r300_emit.c
'buf' is getting set to 0 instead of a proper address.

My backtrace is attached.

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[Bug 41579] R300 Segfaults when using mupen64plus

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=41579

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #52103|application/octet-stream    |text/plain
          mime type|                            |

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[Bug 41579] R300 Segfaults when using mupen64plus

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=41579

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|Drivers/DRI/r300            |Drivers/Gallium/r300

--- Comment #1 from Michel Dänzer <michel@daenzer.net> 2011-10-10 04:30:23 PDT ---
Does this still happen with current Git?

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[Bug 41579] R300 Segfaults when using mupen64plus

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=41579

--- Comment #2 from krthurow@gmail.com 2011-10-11 12:19:20 PDT ---
(In reply to comment #1)
> Does this still happen with current Git?

Just tested current Git, and it seems to be working.

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[Bug 41579] R300 Segfaults when using mupen64plus

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https://bugs.freedesktop.org/show_bug.cgi?id=41579

--- Comment #3 from Michel Dänzer <michel@daenzer.net> 2011-10-12 02:59:21 PDT ---
(In reply to comment #2)
> Just tested current Git, and it seems to be working.

Great. If it's still broken with the current 7.11 branch, and you can isolate
the change that fixed it, maybe we can backport it.

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[Bug 41579] R300 Segfaults when using mupen64plus

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=41579

--- Comment #4 from Marek Olšák <maraeo@gmail.com> 2011-11-07 12:03:14 PST ---
Type on master:
git log origin/7.11..origin/master -- src/mesa/state_tracker/st_draw.c

(assuming origin is the main mesa repo)

I am 99.9% sure one of those commits fixes it. :) Please try to find the fix by
guess. There are only 7 of them.

I don't have r300 or r500 in my machine right now.

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[Bug 41579] R300 Segfaults when using mupen64plus

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=41579

Tomasz P. <son_of_the_osiris@interia.pl> changed:

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

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