[Bug 27666] New: r300g causes Xorg segfault with compositing enabled

[Bug 27666] New: r300g causes Xorg segfault with compositing enabled

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27666

           Summary: r300g causes Xorg segfault with compositing enabled
           Product: DRI
           Version: XOrg CVS
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: mad.f3ka@gmail.com


Xorg segfaults if i try to start any 3d app (or kwin with compositing) with KMS
enabled.
Classic mesa r300 works fine (KMS enabled or disabled), but slow with KMS.

Arch Linux, 2.6.33.2, amd64.
Video is rs690 built-in.

libdrm and dri2proto from git 20100413 (there are no commits later);
mesa from git 20100415 with build options:
        --enable-glx-tls \
        --with-driver=dri \
        --enable-xcb \
        --enable-egl \
        --enable-glu \
        --enable-glut \
        --enable-glw \
        --enable-gallium \
        --enable-gallium-radeon
xf86-video-ati also from git 20100413.

r300_dri.so is a symbolic link to radeong_dri.so.

Backtrace:
0: /usr/bin/X (xorg_backtrace+0x28) [0x45cd68]
1: /usr/bin/X (0x400000+0x59a09) [0x459a09]
2: /lib/libpthread.so.0 (0x7f722367d000+0xeef0) [0x7f722368bef0]
3: /usr/lib/xorg/modules/dri/r300_dri.so (0x7f721ff97000+0x1ab106)
[0x7f7220142106]
4: /usr/lib/xorg/modules/dri/r300_dri.so (0x7f721ff97000+0x1772df)
[0x7f722010e2df]
5: /usr/lib/xorg/modules/dri/r300_dri.so (0x7f721ff97000+0x17782f)
[0x7f722010e82f]
6: /usr/lib/xorg/modules/dri/r300_dri.so (0x7f721ff97000+0x175c54)
[0x7f722010cc54]
7: /usr/lib/xorg/modules/dri/r300_dri.so (0x7f721ff97000+0x2a9a9)
[0x7f721ffc19a9]
8: /usr/lib/xorg/modules/dri/r300_dri.so (0x7f721ff97000+0x18c559)
[0x7f7220123559]
9: /usr/lib/xorg/modules/dri/r300_dri.so (0x7f721ff97000+0x18a907)
[0x7f7220121907]
10: /usr/lib/xorg/modules/dri/r300_dri.so (0x7f721ff97000+0x18bb4b)
[0x7f7220122b4b]
11: /usr/lib/xorg/modules/dri/r300_dri.so (0x7f721ff97000+0x18c2b3)
[0x7f72201232b3]
12: /usr/lib/xorg/modules/dri/r300_dri.so (0x7f721ff97000+0x362aa)
[0x7f721ffcd2aa]
13: /usr/lib/xorg/modules/dri/r300_dri.so (0x7f721ff97000+0x213b5)
[0x7f721ffb83b5]
14: /usr/lib/xorg/modules/dri/r300_dri.so (0x7f721ff97000+0x145483)
[0x7f72200dc483]
15: /usr/lib/xorg/modules/dri/r300_dri.so (0x7f721ff97000+0x145bf3)
[0x7f72200dcbf3]
16: /usr/lib/xorg/modules/dri/r300_dri.so (0x7f721ff97000+0x99360)
[0x7f7220030360]
17: /usr/lib/xorg/modules/extensions/libglx.so (0x7f7221996000+0xf778)
[0x7f72219a5778]
18: /usr/lib/xorg/modules/extensions/libglx.so (0x7f7221996000+0x31f03)
[0x7f72219c7f03]
19: /usr/lib/xorg/modules/extensions/libglx.so (0x7f7221996000+0x36180)
[0x7f72219cc180]
20: /usr/bin/X (0x400000+0x46194) [0x446194]
21: /usr/bin/X (0x400000+0x21aac) [0x421aac]
22: /lib/libc.so.6 (__libc_start_main+0xfd) [0x7f7222900b6d]
23: /usr/bin/X (0x400000+0x21659) [0x421659]
Segmentation fault at address 0xf012659ce

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[Bug 27666] r300g causes Xorg segfault with compositing enabled

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27666

--- Comment #1 from Rafał Miłecki <zajec5@gmail.com> 2010-04-15 13:27:06 PDT ---
Please, recompile Mesa with
--enable-debug
and provide logs once again.

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[Bug 27666] r300g causes Xorg segfault with compositing enabled

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27666

--- Comment #2 from evilfool1@gmail.com 2010-04-15 17:20:09 PDT ---
r300g doesn't work on the RS690 or any Radeon Xpress IGP because there is no
vertex shader in the hardware, and Gallium apparently doesn't work without one.
I'm sure implementing a software fallback for VS processing isn't too
difficult, but I sadly lack such knowledge. I also have a RS690 on my laptop
running Arch x86_64, not that it matters.

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[Bug 27666] r300g causes Xorg segfault with compositing enabled

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27666

--- Comment #3 from Marek Olšák <maraeo@gmail.com> 2010-04-15 18:26:44 PDT ---
Support for RS690 is on the way...

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[Bug 27666] r300g causes Xorg segfault with compositing enabled

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27666

--- Comment #4 from Nikolay Rysev <mad.f3ka@gmail.com> 2010-04-16 12:00:49 PDT ---
Thanks for replies. Well, when can i test the support of this chip? :)

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[Bug 27666] [r300g] causes Xorg segfault with compositing enabled

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27666

Marek Olšák <maraeo@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|r300g causes Xorg segfault  |[r300g] causes Xorg
                   |with compositing enabled    |segfault with compositing
                   |                            |enabled

--- Comment #5 from Marek Olšák <maraeo@gmail.com> 2010-05-15 21:58:43 PDT ---
I think r300g should more or less work on SWTCL chipsets now. Can you test?

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[Bug 27666] [r300g] causes Xorg segfault with compositing enabled

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27666

Nikolay Rysev <mad.f3ka@gmail.com> changed:

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

--- Comment #6 from Nikolay Rysev <mad.f3ka@gmail.com> 2010-05-16 06:38:41 PDT ---
Works fine, but slow. Thank you!

Where can I ask about mesa compiling with llvm? It fails on dlopen in
auxiliary/libgallium.a(u_dl.o).

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[Bug 27666] [r300g] causes Xorg segfault with compositing enabled

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27666

Marek Olšák <maraeo@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|dri-devel@lists.freedesktop |maraeo@gmail.com
                   |.org                        |

--- Comment #7 from Marek Olšák <maraeo@gmail.com> 2010-05-16 07:41:09 PDT ---
1) Install the package llvm-dev
2) Compile with --enable-gallium-llvm (do make clean before it)

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