[Bug 30626] New: bisected nexuiz issue since r600g: don't double count dirty block

[Bug 30626] New: bisected nexuiz issue since r600g: don't double count dirty block

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30626

           Summary: bisected nexuiz issue since r600g: don't double count
                    dirty block
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: lists@andyfurniss.entadsl.com


rv790, d-r-t, git ddx, mesa,libdrm and xserver 1.9. wait vline and dri2 vsync
off.

Test is nexuiz 2.5.2, timedemo demos/demo1, effects normal, fullscreen
1920x1080.

The nexuiz sdl client isn't affected as badly as the glx client and will run to
completion the demo. It may sometimes show the libc error on exit. The glx
client will bail out during the demo with either a segfault or the libc trace
below.

Both since the commit -

commit dde1391cc95478f4dedccdf920ba0a6607472937
Author: John Doe <glisse@barney.(none)>
Date:   Thu Sep 30 17:30:25 2010 -0400

    r600g: don't double count dirty block

    This avoid to overcount the number of dwords we need and
    thus avoid maximazation of cs buffer use.

Will give an error in dmesg.

[drm:radeon_cs_parser_init] *ERROR* cs IB too big: 16390
[drm:radeon_cs_ioctl] *ERROR* Failed to initialize parser !

The libc trace -

*** glibc detected *** ./nexuiz-linux-686-glx: double free or corruption
(!prev): 0x0ba5e510 ***
======= Backtrace: =========
/lib/libc.so.6[0xb73d4d9a]
/lib/libc.so.6(cfree+0x6e)[0xb73d697e]
/home/andy/Src/Mesa-git/mesa/lib/gallium/r600_dri.so[0xb6179950]
/home/andy/Src/Mesa-git/mesa/lib/gallium/r600_dri.so[0xb61580aa]
/home/andy/Src/Mesa-git/mesa/lib/gallium/r600_dri.so[0xb62a9169]
/home/andy/Src/Mesa-git/mesa/lib/gallium/r600_dri.so[0xb623184d]
/home/andy/Src/Mesa-git/mesa/lib/gallium/r600_dri.so[0xb6174b70]
/home/andy/Src/Mesa-git/mesa/lib/gallium/r600_dri.so[0xb6154737]
/home/andy/Src/Xorg-git/modular/lib/libGL.so.1[0xb64edc40]
/home/andy/Src/Xorg-git/modular/lib/libGL.so.1[0xb64c8457]
/home/andy/Src/Xorg-git/modular/lib/libGL.so.1[0xb64c8bb6]
/home/andy/Src/Xorg-git/modular/lib/libX11.so.6(XCloseDisplay+0xb6)[0xb76a19c6]
./nexuiz-linux-686-glx[0x804d82d]
./nexuiz-linux-686-glx[0x80dec52]
./nexuiz-linux-686-glx[0x8198b15]
[0xffffe400]
/home/andy/Src/Mesa-git/mesa/lib/gallium/r600_dri.so[0xb616a7a0]
/home/andy/Src/Mesa-git/mesa/lib/gallium/r600_dri.so[0xb62de8c8]
/home/andy/Src/Mesa-git/mesa/lib/gallium/r600_dri.so[0xb619f8ca]
./nexuiz-linux-686-glx[0x80ae84c]
./nexuiz-linux-686-glx[0x8082b51]
./nexuiz-linux-686-glx[0x8087e9c]
./nexuiz-linux-686-glx[0x80dfb5f]
./nexuiz-linux-686-glx[0x804b0fd]
/lib/libc.so.6(__libc_start_main+0xd0)[0xb7387380]
./nexuiz-linux-686-glx[0x804aff1]

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[Bug 30626] bisected nexuiz issue since r600g: don't double count dirty block

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30626

Andy Furniss <lists@andyfurniss.entadsl.com> changed:

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

--- Comment #1 from Andy Furniss <lists@andyfurniss.entadsl.com> 2010-10-05 13:05:31 PDT ---
Fixed by
12d16e5f14237d86315bf5a5d6a7cf0619a7334e 
r600g: store reloc information in bo structure

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[Bug 30626] bisected nexuiz issue since r600g: don't double count dirty block

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30626

--- Comment #2 from Andy Furniss <lists@andyfurniss.entadsl.com> 2010-10-05 13:14:38 PDT ---
(In reply to comment #1)
> Fixed by
> 12d16e5f14237d86315bf5a5d6a7cf0619a7334e 
> r600g: store reloc information in bo structure

Oops - it wasn't that one that fixed, it was -

585e4098aa0cb68a2cfce55ced5c585bd20aba24
r600g: improve bo flushing

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