Subject: Re: bce(4) and memory > 1GB problem
To: None <tech-kern@NetBSD.org>
From: Manuel Bouyer <bouyer@antioche.eu.org>
List: tech-kern
Date: 01/28/2007 18:50:43
On Wed, Jan 24, 2007 at 09:28:14AM +1100, Daniel Carosone wrote:
> On Mon, Jan 22, 2007 at 11:17:55AM +0100, Manuel Bouyer wrote:
> > > Just one:
> > > 
> > >   _xen_alloc_contig low 0 high fffff000 address_bits 32
> > 
> > That's surprising, I would have expected high to be 0x3fffffff or 0x40000000
> 
> 
> Hmmm, and indeed all is not as well as it would at first have seemed.
> 
> It works fine, as it did in my testing the other day, with
> dom0_mem=256M, and produces the output above.
> 
> However, if I use larger dom0_mem, I do get output with high at
> 0x40000000 as you predicted --- and immediately after that, a panic
> "HYPERVISOR_mmu_update failed".
> 
> I couldn't easily capture a backtrace this morning, but it's easily
> reproducible so I can do so a little later when its more convenient.

Hi,
sorry for the delay replying to this
Did you have time to get a stack trace ? Also, is your kernel configured
with options DEBUG ?

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