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Date: Mon, 25 Aug 2003 20:44:51 -0700
From: "David G. Lawrence" <dg@dglawrence.com>
To: Peter Wemm <peter@wemm.org>
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cc: Mike Silbersack <silby@silby.com>
cc: stable@freebsd.org
Subject: Re: PAE removal patch for testing
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> > Mike Tancsa wrote:
> > > At 04:51 PM 25/08/2003 -0500, Mike Silbersack wrote:
> > > 
> > > >Right now, anyone who is experiencing problems should definitely try that
> > > >short patch which Mike Tancsa said works for him and confirm whether or
> > > >not it fixes the issue on their system.
> > > 
> > > The 2 servers I am running it on both have been stable since applying it.
> > > ns4% uptime
> > >   9:58PM  up 2 days,  4:27, 2 users, load averages: 0.02, 0.03, 0.05
> > > ns4%
> > > 
> > > would have rebooted several times by now.  The other machine is also 
> > > stable.  Both are quite busy mail routers. One also runs spamassassin via a 
> > > milter.
> > 
> > This change matches -current and should probably be committed ASAP.
> 
>    I've reviewed it as well and it definitely is a bug that needs to be fixed
> ASAP. Basically, the pmap_remove code in -stable doesn't handle the case of
> crossing a page table boundry properly. If the next page table page isn't
> currently mapped, then the kernel will [fatally] fault when trying to access
> it.

   Hmmm...after pushing send I'm wondering if I'm mistaken about the problem.
Nevermind. :-)

-DG

David G. Lawrence
Download Technologies, Inc. - http://www.downloadtech.com - (866) 399 8500
TeraSolutions, Inc. - http://www.terasolutions.com - (888) 346 7175
The FreeBSD Project - http://www.freebsd.org
Pave the road of life with opportunities.