linux-kernel - Re: [Bug #16294] [Q35 bisected] hang at init of i915 driver

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Date:	Fri, 9 Jul 2010 22:56:48 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Kees Cook <kees@...flux.net>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Maciej Rutecki <maciej.rutecki@...il.com>
Subject: Re: [Bug #16294] [Q35 bisected] hang at init of i915 driver

On Friday, July 09, 2010, Kees Cook wrote:
> Hi Rafael,
> 
> On Fri, Jul 09, 2010 at 01:41:39AM +0200, Rafael J. Wysocki wrote:
> > The following bug entry is on the current list of known regressions
> > from 2.6.34.  Please verify if it still should be listed and let the tracking team
> > know (either way).
> 
> Yup, this is still a regression.  The fix is trivial (see below).

Thanks for the update.

> > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=16294
> > Subject		: [Q35 bisected] hang at init of i915 driver
> > Submitter	: Kees Cook <kees@...flux.net>
> > Date		: 2010-06-25 18:20 (14 days old)
> > First-Bad-Commit: http://git.kernel.org/linus/f1befe71fa7a79ab733011b045639d8d809924ad
> 
> diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
> index 9344216..0d9007d 100644
> --- a/drivers/char/agp/intel-gtt.c
> +++ b/drivers/char/agp/intel-gtt.c
> @@ -1229,6 +1229,7 @@ static int intel_i915_get_gtt_size(void)
>  				(gmch_ctrl & G33_PGETBL_SIZE_MASK));
>  			size = 512;
>  		}
> +		size = 1024;
>  	} else {
>  		/* On previous hardware, the GTT size was just what was
>  		 * required to map the aperture.

Rafael
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