linux-kernel - Re: [Intel-gfx] drm/i915: WARN_ON_ONCE(!crtc_clock || cdclk < crtc

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Message-ID: <874m4hd4aa.fsf@intel.com>
Date:   Wed, 12 Oct 2016 17:34:53 +0300
From:   Jani Nikula <jani.nikula@...ux.intel.com>
To:     Paul Bolle <pebolle@...cali.nl>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Daniel Vetter <daniel.vetter@...el.com>,
        David Airlie <airlied@...ux.ie>
Cc:     intel-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: Re: [Intel-gfx] drm/i915: WARN_ON_ONCE(!crtc_clock || cdclk < crtc_clock)

On Wed, 12 Oct 2016, Paul Bolle <pebolle@...cali.nl> wrote:
> On Wed, 2016-10-12 at 14:08 +0300, Joonas Lahtinen wrote:
>> Bisecting the offending commit between v4.8 and v4.8.1 would be a good
>> start.
>
> That would be between v4.7 and v4.8. (I guess my report was ambiguous.)
>
> That might take some time. Because bisecting always takes a long time
> and especially since hitting this WARNING sometimes takes over an hour.
> Anyhow, please prod me if I stay silent for too long.

In the mean time, please file a bug over at [1] so we don't lose track.

BR,
Jani.

[1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel

-- 
Jani Nikula, Intel Open Source Technology Center