Date: Fri, 02 Jul 1999 17:39:31 -0700 From: Mike Smith <mike@smith.net.au> To: Greg Lehey <grog@lemis.com> Cc: Mike Smith <msmith@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/i386/i386 machdep.c Message-ID: <199907030039.RAA02121@dingo.cdrom.com> In-Reply-To: Your message of "Sat, 03 Jul 1999 10:09:44 %2B0930." <19990703100944.D87392@freebie.lemis.com>
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> On Friday, 2 July 1999 at 13:33:35 -0700, Mike Smith wrote: > > msmith 1999/07/02 13:33:35 PDT > > > > Modified files: > > sys/i386/i386 machdep.c > > Log: > > Lightly overhaul the memory sizing code again. > > > > - The kernel environment variable 'hw.physmem' can be used to set the > > amount of physical memory space, based at 0, that FreeBSD will use. > > Any memory detected over this limit is ignored. Documentation for > > this is available under 'help set tunables' in the loader. > > > > - In the case where system memory size can't be accurately determined, > > hw.physmem is used as a best-guess memory size, but speculative > > probing will be used to determine actual memory size if any of the > > guesses or hints are 16M or more. > > Don't these two paragraphs contradict each other? No. In the first case, if more than hw.physmem is detected, any excess is ignored. In the second, if it's not possible to determine how much memory there is, hw.physmem is used as a working guess in conjunction with a speculative probe. -- \\ The mind's the standard \\ Mike Smith \\ of the man. \\ msmith@freebsd.org \\ -- Joseph Merrick \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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