[Bug 63945] [HSW] When VGA plugged, system booting up with call trace in dmesg

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=63945

shui yangwei <yangweix.shui at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |VERIFIED

--- Comment #2 from shui yangwei <yangweix.shui at intel.com> ---
(In reply to comment #1)
> This is fixed in:
> 
> commit bd17381372c0740c43a9addf0d80271f647f2b38
> Author: Daniel Vetter <daniel.vetter at ffwll.ch>
> Date:   Mon Mar 25 11:24:10 2013 +0100
> 
>     drm/i915: duct-tape locking when eDP init fails
> 
> Which is only in -nightly.

OK, I retest latest -nightly kernel, this issue is gone. Now I paste our bisect
result and verified here, I will track it on -next-queued and -fixes kernel, if
not fixed on these two branch, I will remind you.  

a0e99e68c12ac6dc5d6b1da7942b5e05d5f848af is the first bad commit commit
a0e99e68c12ac6dc5d6b1da7942b5e05d5f848af
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Sun Dec 2 01:05:46 2012 +0100

    drm/i915: use drm_modeset_lock_all

    Two exceptions:
    - debugfs files only read information which is not related to crtc, so
      can stay on the modeset_config lock.
    - Same holds for the edp vdd work in intel_dp.c. Add a corresponding
      WARN_ON and a comment next to the intel_dp struct fields for
      documentation.

    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

:040000 040000 bcd9863b435f3f769b1b00b750136a604e3bd451
2a61b7bb989f2bf986f2ddc77be75ba584a06f70 M    drivers

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