[Bug 58396] i915 regression in 3.7.0 kernel on macbook1,1 (kernel crash)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=58396

--- Comment #1 from Peter Ujfalusi <peter.ujfalusi at gmail.com> ---
I have also bisected the kernel between 3.6.0 and 3.7.0:

fa55583797d12b10928a1813f3dcf066637caf5e is the first bad commit
commit fa55583797d12b10928a1813f3dcf066637caf5e
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Wed Oct 10 23:14:00 2012 +0200

    drm/i915: fixup the plane->pipe fixup code

    We need to check whether the _other plane is on our pipe, not whether
    our plane is on the other pipe. Otherwise if not both pipes/planes are
    active, we won't properly clean up the mess and set up our desired
    plane->pipe mapping.

    v2: Fixup the logic, I've totally fumbled it. Noticed by Chris Wilson.

    v3: I've checked Bspec, and the flexible plane->pipe mapping is a
    gen2/3 feature, so test for that instead of PCH_SPLIT

    v4: Check whether we indeed have 2 pipes before checking the other
    pipe, to avoid upsetting i845g/i865g. Noticed by Chris Wilson.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=51265
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=49838
    Tested-by: Dave Airlie <airlied at gmail.com>
    Tested-by: Chris Wilson <chris at chris-wilson.co.uk> #855gm
    Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

Attaching the bisect log as well to the bug.

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