[Nouveau] [Bug 53566] New: bisected regression 3.5+ kernel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=53566

             Bug #: 53566
           Summary: bisected regression 3.5+ kernel
    Classification: Unclassified
           Product: xorg
           Version: unspecified
          Platform: All
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: vlad.kvs at gmail.com
         QAContact: xorg-team at lists.x.org


It seems that there is a regression present in 3.5+ kernels with nouveau on GTX
560 card, X does not start and artifact present during boot (rectange on top
right). Reverting commit below resolves issue, X can be started and artifact is
gone. Attached is the kern.log from machine booted with drm.debug=0x04


1a46098e910b96337f0fe3838223db43b923bad4 is the first bad commit
commit 1a46098e910b96337f0fe3838223db43b923bad4                                 
Author: Ben Skeggs <bskeggs at redhat.com>                                         
Date:   Fri May 4 15:17:28 2012 +1000                                           

    drm/nvc0/ttm: use copy engines for async buffer moves                       

    Signed-off-by: Ben Skeggs <bskeggs at redhat.com>

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