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Date: Wed, 25 Sep 2002 21:56:45 -0400
From: Ben Collins <bcollins@debian.org>
To: Shanti Katta <katta@csee.wvu.edu>
Cc: sparc-linux@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: Reg Sparc memory addresses
Message-ID: <20020926015645.GE28289@phunnypharm.org>
References: <1033005676.2723.5.camel@indus>
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On Wed, Sep 25, 2002 at 10:01:15PM -0400, Shanti Katta wrote:
> Hi,
> I compiled user-mode-linux kernel on Ultrasparc with load address set to
> 00000000e0000000. But, when I try to debug the kernel, it just says
> cannot access memory at address 0xa00020b0.
> This error message remains the same no matter what I change the load
> address to. Can anyone guide me on valid memory addresses for userspace
> on Sparc? and how much different is that from x86 architecture?

You compiled it on ultrasparc, but I hope you compiled it as a "sparc"
target and not "sparc64".

I'm not familiar with how UML runs in user space, but I suspect it needs
to think it is sparc and not sparc64 for it to run in 32bit sparc
userspace (which is what ultrasparc runs at for most cases).

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