Re: WARNING: CPU: 0 PID: 3634 at drivers/gpu/drm/drm_irq.c:1141 drm_wait_one_vblank

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I have just tried to boot 4.2-rc1 and cannot seem to reproduce the issue
anymore.

On Tue 07-07-15 10:43:58, Daniel Vetter wrote:
[...]
> Can you please
> boot with drm.debug=0xf (lots more nois in dmesg with this) and reproduce?
> I only need the last few pages before the WARNING backtrace, just to
> understand a bit better what's going on there.

And 0xf debug level seem to paper over the problem because I do not see
the warning even with 4.1 where I am able to reproduce this reliably.
This suggests this is a timing sensitive issue.
-- 
Michal Hocko
SUSE Labs
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