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SubjectRe: a small doubt
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>>>>> "David" == David S Miller <davem@redhat.com> writes:

> From: Jes Sorensen <Jes.Sorensen@cern.ch> Date: 07 Oct 1999
> 14:34:36 +0200

> And a very bad one indeed since some architectures have page
> 0 mapped.

David> Such architectures are mistaken, since they are not going to
David> catch NULL pointer derefences in the kernel correctly in all
David> such cases.

Nod, I don't want to chase bugs that way, however on some
architectures it may be expensive working around not mapping page zero
in kernel space.

I remember Alan moaning at me for relying on page zero not being
mapped ages ago.

Jes

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