Date: Thu, 31 Mar 2005 10:45:24 -0800 From: "David O'Brien" <obrien@freebsd.org> To: Peter Wemm <peter@wemm.org> Cc: freebsd-amd64@freebsd.org Subject: Re: Problems with AMD64 and 8 GB RAM? Message-ID: <20050331184524.GB1687@dragon.NUXI.org> In-Reply-To: <200503301525.37798.peter@wemm.org> References: <20050330222439.GU84137@wantadilla.lemis.com> <424B308C.7070506@samsco.org> <20050330230951.GY84137@wantadilla.lemis.com> <200503301525.37798.peter@wemm.org>
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On Wed, Mar 30, 2005 at 03:25:37PM -0800, Peter Wemm wrote: > Greg: The busdma problems from 5.3-RELEASE are fixed. That doesn't > mean that there are no *other* problems. Scott is saying "the old > busdma bug shouldn't be affecting 5.4-PRE", and he's correct. > > Most likely, something else is happening, eg: you're running out of KVM > or something silly like that. I know we're right on the brink at 8GB. > The layout of the devices may be just enough to tip it over the edge. Grog's motherboard is a 4+0 configuration -- which would mean he is using (trying to) 2GB DIMM's. There are memory bus loading specifictions he may be out of spec of. -- -- David (obrien@FreeBSD.org)
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