From: Andi Kleen <ak@suse.de>
Organization: SUSE Linux Products GmbH, Nuernberg, GF: Markus Rex, HRB 16746 (AG Nuernberg)
To: Dave Jones <davej@redhat.com>
Subject: Re: 2.6.23 boot failures on x86-64.
Date: Mon, 29 Oct 2007 19:18:43 +0100
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Cc: Linux Kernel <linux-kernel@vger.kernel.org>,
       Martin Ebourne <fedora@ebourne.me.uk>,
       Zou Nan hai <nanhai.zou@intel.com>,
       Suresh Siddha <suresh.b.siddha@intel.com>, stable@kernel.org,
       Andrew Morton <akpm@linux-foundation.org>,
       Linus Torvalds <torvalds@linux-foundation.org>
References: <20071029175014.GH7793@redhat.com>
In-Reply-To: <20071029175014.GH7793@redhat.com>
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On Monday 29 October 2007 18:50:14 Dave Jones wrote:
> We've had a number of people reporting that their x86-64s stopped booting
> when they moved to 2.6.23.  It rebooted just after discovering the AGP bridge
> as a result of the IOMMU init.

It's probably the usual "nobody tests sparsemem at all" issue.

But if allocating bootmem >4G doesn't work on these systems
most likely they have more problems anyways. It might be better
to find out what goes wrong exactly.

-Andi
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