From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jesse Barnes <jbarnes@engr.sgi.com>
Date: Wed, 07 Jul 2004 23:56:34 +0000
Subject: Re: BUG 2.6.7 hangs on boot (rx2600)
Message-Id: <200407071656.34813.jbarnes@engr.sgi.com>
List-Id: <linux-ia64.vger.kernel.org>
References: <20040622061505.GA23075@cup.hp.com>
In-Reply-To: <20040622061505.GA23075@cup.hp.com>
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To: linux-ia64@vger.kernel.org

On Tuesday, July 6, 2004 4:43 pm, David Mosberger wrote:
> >>>>> On Wed, 30 Jun 2004 09:17:18 -0700, Jesse Barnes
> >>>>> <jbarnes@engr.sgi.com> said:
>
>   Jesse> On Tuesday, June 29, 2004 4:18 pm, David Mosberger wrote:
>   >> >>>>> On Tue, 29 Jun 2004 11:19:34 -0700, "Chen, Kenneth W"
>   >> >>>>> <kenneth.w.chen@intel.com> said:
>
>   Ken> Looks like there are more places where kernel does "virt ->
>   Ken> phys -> virt".  And conversion from phys to virt is setting 3
>   Ken> msb to 1.
>
>   >> Your fixes work fine on the machines I have tried so far (variety of
>   >> Itanium 2 boxen and a Big Sur Merced box).
>   >>
>   >> Jesse, do you know if unapplying the "move current to region 5" patch
>   >> fixes your boot-problem?  For convenience, I attached the (original)
>   >> patch below.
>
>   Jesse> Yes, reverting that patch does fix the hang I'm seeing.
>
> A quick grep shows that MINSTATE_END_SAVE_MIN_PHYS would also convert
> the region 5 "current" into a region 7 address.  An MCA at the right
> time might cause problems, I think.

If you hack your elilo to load the kernel higher in memory do you see the same 
thing?

Jesse