Date: Mon, 13 Sep 2004 11:53:03 -0700 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: Peter Wemm <peter@wemm.org> Cc: freebsd-current@freebsd.org Subject: Re: AMD64 VM panic with >8 GB memory Message-ID: <20040913185303.GB85053@troutmask.apl.washington.edu> In-Reply-To: <20040824020832.GA42331@troutmask.apl.washington.edu> References: <20040823230619.GB41337@troutmask.apl.washington.edu> <200408231901.13938.peter@wemm.org> <20040824020832.GA42331@troutmask.apl.washington.edu>
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On Mon, Aug 23, 2004 at 07:08:32PM -0700, Steve Kargl wrote: > 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 > RELENG_5. > Peter, Have you had a chance to investigate this panic. I had hoped that scottl's recent commit to pmap.c would fix the problem, but still get this panic. -- Steve
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