Re: Reg Sparc memory addresses

Ben Collins (bcollins@debian.org)
Wed, 25 Sep 2002 21:56:45 -0400

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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