Re: CVS commit: src/sys/arch

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Thu, Dec 08, 2011 at 12:09:14AM +0000, Thor Lancelot Simon wrote:
> On Sun, Dec 04, 2011 at 04:24:13PM +0000, Chuck Silvers wrote:
> > Module Name:        src
> > Committed By:       chs
> > Date:               Sun Dec  4 16:24:13 UTC 2011
> > 
> > Modified Files:
> >     src/sys/arch/amd64/amd64: locore.S machdep.c
> >     src/sys/arch/amd64/include: types.h
> >     src/sys/arch/x86/include: pmap.h
> >     src/sys/arch/x86/x86: pmap.c
> > 
> > Log Message:
> > map all of physical memory using large pages.
> > ported from openbsd years ago by Murray Armfield,
> > updated for changes since then by me.
> 
> This change causes my 2-cpu, x86-64 VirtualBox VM to hang hard
> immediately on boot, regardless of how I build the kernel.  If I build
> the kernel with DEBUG, it hangs immediately after printing
> "kernel text is mapped with 6 large pages and 442 normal pages".
> 
> In fact, it hangs so hard that it makes VirtualBox throw a fatal error
> when I try to reset the VM.
> 
> I understand this change is _not_ causing trouble for some others, but
> it sure does for me.  Can we back it out temporarily, and what can I

Please don't back it out but just don't define __HAVE_DIRECT_MAP
in types.h. I'm looking at how Xen can make good use of it and I'd
prefer to not see it go away now :)

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--