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[Bug-hurd] Re: Problems with oskit-mach


From: Neal H Walfield
Subject: [Bug-hurd] Re: Problems with oskit-mach
Date: Sun, 17 Sep 2000 13:40:04 -0500
User-agent: Mutt/1.2i

On Wed, Sep 06, 2000 at 07:30:14PM +0200, Daniel Wagner wrote:
> Hi Igor!
> 
> On Tue, 05 Sep 2000, Igor Khavkine wrote:
> 
> > The first problem was that my computer generated a general protection fault
> > in the i386/intel/pmap.c::pmap_boostrap() function where the code was trying
> > to modify the %cr4 register. I have a K6-III which pretends to support the
> > PGE extension (judging from the cpuid output), the code was trying to enable
> > the flag for this feature in the %cr4 register and that generated the GPF. 
> 
> It seems that I have the same problem, but I've got an K6-2. So that might be 
> K6
> family error.

Good news!  It is not a problem with the K6 family of processors!!!
I have the same problem on my Xeon.

However, unlike you, Igor, I did not crash while setting the cr4 register but
when enabling the page tables;  that is to say, setting cr0 from the function
oskit/x86/main.c:paging_enable.

-Neal

-- 
Neal H Walfield
University of Massachusetts at Lowell
neal@walfield.org or nwalfiel@cs.uml.edu


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