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Re: [REGRESSION] Re: i915 driver crashes on T540p if docking station attached

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On Mon, Aug 3, 2015 at 7:24 PM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>>                      However, I'm
>> still seeing a large number of drm/i915 related warning messages and
>> other kernel kvetching.
>
> I suspect I can live with that for now. The lockdep one looks like
> it's mainly an initialization issue, so you'd never get the actual
> deadlock in practice, but it's obviously annoying.  The intel_pm.c one
> I'll have to defer to the i915 people for..

The lockdep splat is just acpi being inconsistent with init_mutex vs.
backlight notifier_chain (which has it's own lock) calls. init_mutex
is new in 4.2 and has been added in

commit 87521e16a7abbf3fa337f56cb4d1e18247f15e8a
Author: Hans de Goede <hdegoede@redhat.com>
Date:   Tue Jun 16 16:27:48 2015 +0200

    acpi-video-detect: Rewrite backlight interface selection logic


Not mine ;-) But adding relevant people.

I'll send you a pull for the mst one tomorrow and look into the
watermark fail in intel_pm.c too.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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[REGRESSION] Re: i915 driver crashes on T540p if docking station  attached Theodore Ts'o <tytso@mit.edu> - 2015-07-30 03:40 +0200
  Re: [REGRESSION] Re: i915 driver crashes on T540p if docking station attached Linus Torvalds <torvalds@linux-foundation.org> - 2015-07-30 07:20 +0200
    Re: [REGRESSION] Re: i915 driver crashes on T540p if docking station attached Dave Airlie <airlied@gmail.com> - 2015-07-30 13:20 +0200
    Re: [REGRESSION] Re: i915 driver crashes on T540p if docking station  attached Daniel Vetter <daniel@ffwll.ch> - 2015-07-30 16:50 +0200
      Re: [REGRESSION] Re: i915 driver crashes on T540p if docking station  attached Theodore Ts'o <tytso@mit.edu> - 2015-07-30 17:40 +0200
        Re: [Intel-gfx] [REGRESSION] Re: i915 driver crashes on T540p if docking station attached Takashi Iwai <tiwai@suse.de> - 2015-07-30 18:00 +0200
        Re: [Intel-gfx] [REGRESSION] Re: i915 driver crashes on T540p if  docking station attached Daniel Vetter <daniel@ffwll.ch> - 2015-07-30 18:00 +0200
      Re: [REGRESSION] Re: i915 driver crashes on T540p if docking station  attached Theodore Ts'o <tytso@mit.edu> - 2015-07-30 18:00 +0200
        Re: [REGRESSION] Re: i915 driver crashes on T540p if docking station  attached Daniel Vetter <daniel@ffwll.ch> - 2015-07-30 18:10 +0200
        Re: [REGRESSION] Re: i915 driver crashes on T540p if docking station  attached Daniel Vetter <daniel@ffwll.ch> - 2015-08-03 17:30 +0200
          Re: [REGRESSION] Re: i915 driver crashes on T540p if docking station  attached Theodore Ts'o <tytso@mit.edu> - 2015-08-03 18:30 +0200
            Re: [REGRESSION] Re: i915 driver crashes on T540p if docking station attached Linus Torvalds <torvalds@linux-foundation.org> - 2015-08-03 19:30 +0200
              Re: [REGRESSION] Re: i915 driver crashes on T540p if docking station  attached Theodore Ts'o <tytso@mit.edu> - 2015-08-03 21:00 +0200
              Re: [REGRESSION] Re: i915 driver crashes on T540p if docking station attached Daniel Vetter <daniel@ffwll.ch> - 2015-08-04 00:10 +0200
                Re: [REGRESSION] Re: i915 driver crashes on T540p if docking station attached "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-08-04 03:00 +0200

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