Re: sparc32 paging fault which I cannot explain

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From: Sam Ravnborg <sam@xxxxxxxxxxxx>
Date: Fri, 6 Apr 2012 17:26:19 +0200

> What I think happens is that the MMU is not setup to handle virtual addresses
> in this area - as this is a much higher address than what we would have seen
> with the old bootmem allocator. memblock allocates top-down, where bootmem
> allocates bottom-up.

The first 16MB at KERNBASE is mapped by the head.S code, the rest is
mapped by arch/sparc/srmmu.c:map_kernel() and similar.
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