Date: Fri, 31 Oct 1997 23:24:48 -0800 From: David Greenman <dg@root.com> To: Tony Overfield <tony@dell.com> Cc: bugs@FreeBSD.ORG, hackers@FreeBSD.ORG, elh@svic.com Subject: Re: 2.2.5 installation bug on 1gig machines Message-ID: <199711010724.XAA28863@implode.root.com> In-Reply-To: Your message of "Fri, 31 Oct 1997 22:54:37 CST." <3.0.3.32.19971031225437.006d6490@bugs.us.dell.com>
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>At 04:40 PM 10/31/97 -0800, David Greenman wrote: >>You'll >>have to physically pull out some of the memory and/or replace it with >>lower density SIMMs until you've finished the installation and built a >>customized kernel. > >Can the kernel know (or calculate) the maximum amount of memory it can >use without crashing? If so, it could refuse to register memory greater >than that amount. Uh, well, the answer to this is that there is a bug in the kernel that is causing the problem. We didn't test kernel's with the BOUNCE_BUFFERS option on any large memory systems. Otherwise, how much memory a system has is not an issue with regard to the system crashing (resources allocated out of that memory can be a problem if tuned wrong, but that is a different issue). -DG David Greenman Core-team/Principal Architect, The FreeBSD Project
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