On Tue, 24 Aug 1999, Ulrich Weigand wrote:

> Hello,
> 
> this patch activates PDBR switching to a real monitor/guest page directory.
> (The patch applies against fwm-19990822b.)
[snip]
> Before I'm implementing this, I'd like you all to test this patch;
> I've tested it only on Linux 2.0.36 ...  Also, testing with various
> versions of gcc and/or ld to find out whether the linker script
> works would be great (note that GNU ld is now required ...).

I've just tested it with Linux 2.0.36, gcc 2.7.2.3, GNU ld 2.9.1, the
stock Debian 2.0 stuff, so nothing out of the ordinary except for
running under VMWare.  Works fine.

> (Please do sync your disks before testing; I've managed to trigger
> triple faults more than once while implementing this :-/)

I remember finding all sorts of amusing ways to reboot a PC when
working on my OS - my favourite was forgetting to mark the PTEs in
which the page fault handler lived as present.  :-)  Going back and
getting more of the OS done is one of the things I'd like to use
FreeMWare for - two reboots for every test run isn't very fun.

Chris
-- 
Chris Emerson, obsessed Cambridge juggler
E-mail: [EMAIL PROTECTED]
Web page: http://www.chiark.greenend.org.uk/~cemerson/

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