Re: 5.0beta won't boot on a Dell Dimension 8400

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

On Sat, Nov 29, 2008 at 04:39:04PM -0500, Steven M. Bellovin wrote:
> On Sat, 29 Nov 2008 22:31:53 +0100
> Manuel Bouyer <bouyer%antioche.eu.org@localhost> wrote:
> 
> > > The last few lines on the screen (with -current failing) are:
> > > 
> > > IPsec: Initialized Security Association Processing
> > > ahcisata0 port 0: device present, speed: 1.5GB/s
> > > NMI ... going to debugger
> > > NStopped in pid 0.2 (system) at  netbsd:sse2_idlezero_page+0x18: jnz
> > > netbsd:sse2_idlezero_page+0x46
> > > 
> > > Is there some kernel option or patch I could try to make the kernel
> > > go to the backtrace function immediately?  
> > 
> > options DDB_COMMANDONENTER="tr"
> > in the kernel config file would do it. But in fact I don't think it
> > would give interesting results, as the NMI seems to be asynchronous;
> > as if some device did an invalid memory access or something like that.
> > 
> > Do both systems have the same amount of RAM ? how much ?
> > 
> They both currently have 3GB; both displayed the same symptoms when
> they both had 1GB.  (A very recent memory upgrade.)

And I guess they have the same memory modules in the same slots.
It would be interesting to compare the memory map provided by the
BIOS, but I'm not sure how to get this (maybe a tool like memtest would
show it?)

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