linux-kernel - Re: WARNING: CPU: 0 PID: 3634 at drivers/gpu/drm/drm_irq.c:1141 drm_wait_one

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Date:	Wed, 8 Jul 2015 09:46:17 +0200
From:	Michal Hocko <mhocko@...e.cz>
To:	Daniel Vetter <daniel@...ll.ch>
Cc:	Jani Nikula <jani.nikula@...ux.intel.com>,
	Ander Conselvan de Oliveira 
	<ander.conselvan.de.oliveira@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	dri-devel@...ts.freedesktop.org,
	"intel-gfx@...ts.freedesktop.org" <intel-gfx@...ts.freedesktop.org>,
	"Roper, Matthew D" <matthew.d.roper@...el.com>
Subject: Re: WARNING: CPU: 0 PID: 3634 at drivers/gpu/drm/drm_irq.c:1141
 drm_wait_one_vblank

On Wed 08-07-15 09:32:18, Daniel Vetter wrote:
[...]
> Ok that's starting to get nasty. Can you please test what happens when you
> boot with drm.vblankoffdelay=0 and whether drm.vblankoffdelay=1000 has an
> effect on reproduction rate? No debug output needed.

No difference. See the kernel log from both runs attached.
-- 
Michal Hocko
SUSE Labs

Download attachment "log.gz" of type "application/gzip" (32451 bytes)