[Bug 91592] New: [pnv regression] OOPS on boot

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91592

            Bug ID: 91592
           Summary: [pnv regression] OOPS on boot
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: blocker
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: chris at chris-wilson.co.uk
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

A few weeks of bisecting:

commit eddfcbcdc27fbecb33bff098967bbdd7ca75bfa6
Author: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
Date:   Mon Jun 15 12:33:53 2015 +0200

    drm/i915: Update less state during modeset.

    No need to repeatedly call update_watermarks, or update_fbc.
    Down to a single call to update_watermarks in .crtc_enable

    Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
    Reviewed-by: Matt Roper <matthew.d.roper at intel.com>
    Tested-by(IVB): Matt Roper <matthew.d.roper at intel.com>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

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