From: Andres Freund <andres@anarazel.de>
To: Keith Packard <keithp@keithp.com>
Cc: Dave Airlie <airlied@linux.ie>, linux-kernel@vger.kernel.org
Subject: Re: [git pull] agp patches for 2.6.28-rc1.
Date: Mon, 20 Oct 2008 02:34:28 +0200 [thread overview]
Message-ID: <200810200234.28751.andres@anarazel.de> (raw)
In-Reply-To: <1224461977.5303.34.camel@koto.keithp.com>
Hi,
On Monday 20 October 2008 02:19:37 you wrote:
> The GM45/G45 support in both kernel and user space was horribly broken,
> causing the kernel to either overwrite stolen entries with freshly
> allocated pages, and potentially corrupt the system, or leave some GTT
> entries uninitialized and cause the hardware to lock up.
I had some crashes with 3d, but none in 2d as far as I know.
> You appear to have a happy situation where this bug isn't obviously
> breaking things. We couldn't find any machines where even simple 2D
> graphics was stable for very long.
Interesting. I had the system running for some days without problems related
to graphics.
> We applied a patch to both kernel and 2D driver (as both end up
> computing the size of the GTT stolen area for historical reasons) to fix
> this mistake. Updating your 2D driver to 2.4.98 should get you the other
> half of the fix.
Ok, will try, and also report this to ubuntu and maybe other distributions...
> Yeah, I'm getting information about how 'hybrid' graphics hardware
> works.
If you need some information/testing/whatever...
Andres
next prev parent reply other threads:[~2008-10-20 0:34 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-16 6:59 [git pull] agp patches for 2.6.28-rc1 Dave Airlie
2008-10-19 23:11 ` Andres Freund
2008-10-19 23:25 ` Dave Airlie
2008-10-19 23:44 ` Andres Freund
2008-10-20 0:19 ` Keith Packard
2008-10-20 0:34 ` Andres Freund [this message]
2008-10-20 1:00 ` Andres Freund
2008-10-20 1:04 ` Dave Airlie
2008-10-20 1:18 ` Andres Freund
2008-10-20 1:35 ` Keith Packard
2008-10-20 1:58 ` Andres Freund
2008-10-20 2:19 ` Keith Packard
2008-10-20 2:27 ` Andres Freund
2008-10-20 9:50 ` Andres Freund
2008-10-20 10:29 ` Andres Freund
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