[Bug 27784] New: UMS broken with recent kernels and Mesa on rv280

[Bug 27784] New: UMS broken with recent kernels and Mesa on rv280

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27784

           Summary: UMS broken with recent kernels and Mesa on rv280
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/r200
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: randrik@mail.ru


For some reason i got only black window instead of nice gears.

It works with KMS.

Kernel: drm-radeon-testing up to

commit 10fd883ce384706f88554a0b08cc4d63345e7d8b
Author: Dave Airlie <airlied@redhat.com>
Date:   Tue Apr 20 16:34:20 2010 +1000
    agp/intel: put back check that we have a driver for the bridge.

libdrm:

commit 894c86e8400f13f1ee0dfe23ca4b5f98c32d9223
Author: Kristian Høgsberg <krh@bitplanet.net>
Date:   Fri Apr 9 16:33:38 2010 -0400
    Revert "Fix pkgconfig includes for /usr/include/drm"

xf86-video-ati:

commit 2a6b409496f26da0436972b5feae6ea035dde08d
Author: Owain Ainsworth <zerooa@googlemail.com>
Date:   Mon Apr 19 14:37:33 2010 +0100
    Reference count shared driver mappings.

mesa:

commit 9e258fc2bd6f2b9950606a0a92bb92c8959d9efd
Author: Vinson Lee <vlee@vmware.com>
Date:   Tue Apr 20 18:48:04 2010 -0700
    gallivm: Remove unnecessary headers.

xserver:

commit 35d208125fa0ec78e8d694adc52886b977e789cf
Author: Tiago Vignatti <tiago.vignatti@nokia.com>
Date:   Wed Apr 21 18:28:13 2010 +0300
    xfree86: fix not reached code in fi1236 driver from i2c

libpciacces:

commit af2be74979aeab9a2fc4c933462e97ce70f816b6
Author: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date:   Tue Jan 19 18:37:43 2010 +0100
    libpciaccess x86 backend

logs will follow .....

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[Bug 27784] UMS broken with recent kernels and Mesa on rv280

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27784

--- Comment #1 from Andrew Randrianasulu <randrik@mail.ru> 2010-04-21 20:14:01 PDT ---
Created an attachment (id=35227)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=35227)
X log

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[Bug 27784] UMS broken with recent kernels and Mesa on rv280

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27784

--- Comment #2 from Andrew Randrianasulu <randrik@mail.ru> 2010-04-21 20:16:46 PDT ---
Created an attachment (id=35228)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=35228)
xorg.conf

Playing with colorTiling was unhelpful. Playing with resolution changes
nothing. It simply doesn't work if i set DefaultDepth to 16 (for UMS).
Disabling PAT support via nopat kernel option changes nothing.

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[Bug 27784] UMS broken with recent kernels and Mesa on rv280

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27784

--- Comment #3 from Andrew Randrianasulu <randrik@mail.ru> 2010-04-21 20:17:26 PDT ---
Created an attachment (id=35229)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=35229)
dmesg

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[Bug 27784] UMS broken with recent kernels and Mesa on rv280

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27784

--- Comment #4 from Andrew Randrianasulu <randrik@mail.ru> 2010-04-21 20:22:29 PDT ---
Glxgears in UMS was working (with same userspace) up to kernel 

commit 6d6b89bd2e316b78d668f761d380837b81fa71ef
Merge: 13dda80 2507c05
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Tue Mar 2 07:55:08 2010 -0800

in mainline. I halted git-bisect because original good/bad pair was not about
this bug, i wrongly assumed new kernel was unable to "fix"  bug 22576. 

I can re-run git-bisect, but it will take time ... anyone want to beat me on
this?

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[Bug 27784] UMS broken with recent kernels and Mesa on rv280

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27784

Andrew Randrianasulu <randrik@mail.ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #35229|0                           |1
        is obsolete|                            |

--- Comment #5 from Andrew Randrianasulu <randrik@mail.ru> 2010-04-21 20:26:32 PDT ---
Created an attachment (id=35230)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=35230)
dmesg

Sorry, original dmesg was splitted by syslog, it seems. Here is more complete
version.

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[Bug 27784] UMS broken with recent kernels and Mesa on rv280

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27784

--- Comment #6 from Andrew Randrianasulu <randrik@mail.ru> 2010-04-21 20:29:22 PDT ---
MTRR (under X):

guest@slax:~$ cat /proc/mtrr 
reg00: base=0x000000000 (    0MB), size=  512MB, count=1: write-back
reg01: base=0x0d0000000 ( 3328MB), size=  128MB, count=1: write-combining
reg05: base=0x0e0000000 ( 3584MB), size=  128MB, count=2: write-combining

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[Bug 27784] UMS broken with recent kernels and Mesa on rv280

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27784

--- Comment #7 from Andrew Randrianasulu <randrik@mail.ru> 2010-04-21 20:30:47 PDT ---
Created an attachment (id=35231)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=35231)
lspci -vvvn

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[Bug 27784] UMS broken with recent kernels and Mesa on rv280

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27784

--- Comment #8 from Andrew Randrianasulu <randrik@mail.ru> 2010-05-13 11:09:02 PDT ---
According to http://article.gmane.org/gmane.comp.video.dri.devel/46026
("Regression: commit 566d84d1 breaks glxgears on r200") it was commit
566d84d172161cb6c0c4dd834c34abbac6bf7b38 (drm/radeon:
r100/r200 ums: block ability for userspace app to trash 0 page and
beyond) .....

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[Bug 27784] UMS broken with recent kernels and Mesa on rv280

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27784

Andrew Randrianasulu <randrik@mail.ru> changed:

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

--- Comment #9 from Andrew Randrianasulu <randrik@mail.ru> 2010-05-31 12:14:05 PDT ---
At least glxgears back to normal with 2.6.35-rc1 mainline kernel ....

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