AMD64 VM panic with >8 GB memory

Steve Kargl sgk at
Mon Aug 23 19:08:33 PDT 2004

On Mon, Aug 23, 2004 at 07:01:13PM -0700, Peter Wemm wrote:
> On Monday 23 August 2004 04:06 pm, Steve Kargl wrote:
> > Some relevant info.  The motherboard is a Tyan K8S Pro
> > (S2882) with 12 GB of PC2700 ECC memory.  If I limit
> > the memory by setting 'hw.physmem="8G"' in the loader
> > or in /boot/loader.conf, then the system boots fine.
> > Any other setting above 8G will result in the above panic.
> >
> > The panic occurs too earlier to get a crash dump.
> > However, I'm will to try any patch or settings.
> Hmm.  I think we had an amd64 machine around somewhere at work that had 
> 16G of ram.  I'll ask what happened to it and see if it can be 
> recovered to sort this out.

Thanks for looking into this.  I can test any patches
you devise.  I also suspect that this problem is


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