linux-kernel - Re: [git pull] drm for rc1

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Date:	Tue, 11 Jan 2011 08:01:28 -0800
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
Cc:	Dave Airlie <airlied@...il.com>, Dave Airlie <airlied@...ux.ie>,
	Chris Wilson <chris@...is-wilson.co.uk>,
	Eric Anholt <eric@...olt.net>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	linux-kernel@...r.kernel.org,
	DRI mailing list <dri-devel@...ts.freedesktop.org>
Subject: Re: [git pull] drm for rc1

On Mon, Jan 10, 2011 at 10:06 PM, Jesse Barnes <jbarnes@...tuousgeek.org> wrote:
>
> Arg.  It's been ok on my ILK systems, but Chris has found some issues with out watermarking code iirc; apparently we're underflowing the display FIFO, causing all sorts of trouble.  If it works before the pull of Dave's tree, can you bisect?

There's no way to bisect this thing - it started happening after 2
hours (first message at 8287.139375 seconds from boot, to be exact).
So far only once, but that's possibly because I've been asleep for the
last eight hours ;)

But yes, it worked before pulling Dave's tree, IOW, I haven't seen
this message on this machine before.

And as mentioned, this is a regular machine, not one of my
preproduction things that tend to have odd silicon or BIOSes.
Bog-standard Core i5 on an Asus P7H57D-V EVO motherboard. The fanciest
part of that machine is the silent case ;)

Chris wrote:
> Linus, is anything else kicked off upon powersaving? A screen saver or is
> it just the blanking that triggers the mess?

So I don't _know_ that it was the screen saver that triggered, but I
do know that it started happening while I was out to pick up a kid
from gymnastics. So the screen saver was pretty much the only thing
going on apart from an idle desktop with a few terminals and chrome.

And it's not even a 3D screen saver or anything graphically fancy,
it's just the "show random photos" one (it eventually does blank too,
but I think I've set the blanking interval to an hour or something).
But compiz was on.

                         Linus
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