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Re: [Xen-devel] Xen & Transmeta (from xen-users)

To: "Carl Holtje ;021;vcsg6;" <cwh0803@xxxxxxxxxx>
Subject: Re: [Xen-devel] Xen & Transmeta (from xen-users)
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Fri, 3 Jun 2005 08:39:16 +0100
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On 3 Jun 2005, at 02:13, Carl Holtje ;021;vcsg6; wrote:

The only one I don't have is PGE -- but this should be a performance
thing, not so much a functionality issue, right?

(Here's the appropriate substring from /proc/cpuinfo: fpu vme de pse tsc
msr cx8 sep cmov mmx pni longrun lrt)

It depends whether the CPU is checking the reserved flags and faulting if any are set, rather than ignoring the global flag....

A quick thing you can try is to define _PAGE_GLOBAL in include/asm-x86/page.h to be 0 rather than 0x100U. This will stop us trying to use pge in any page table entries.

The crashes you are seeing are so weird and early that it must be something stupid like this that is causing you problems.

 -- Keir


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