Date: Wed, 21 Dec 1994 17:38:15 -0800 From: David Greenman <davidg@Root.COM> To: Chuck Robey <chuckr@Glue.umd.edu> Cc: FreeBSD Questions <FreeBSD-Questions@freefall.cdrom.com> Subject: Re: More memory Message-ID: <199412220138.RAA00933@corbin.Root.COM> In-Reply-To: Your message of "Wed, 21 Dec 94 20:30:18 EST." <Pine.SUN.3.91.941221202648.29981B-100000@filter.eng.umd.edu>
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>On Wed, 21 Dec 1994, David Greenman wrote: > >> >For the next few days, you're gonna hear a lot from me; I've been waiting >> >for the semester break to do a LOT of upgrading. First point: I just got >> >some more memory, and before I upgrade my other machine to 2.0, I want to >> >move my present 1.1.5.1 machine from 16 to 20 megs of memory. I have a >> >1542C controller; will I have a problem, or do I need to do anything to >> >enable memory bounce? >> >> In 2.0, you must explicitly enable bounce buffer support with >> "options BOUNCE_BUFFERS". They are enabled in the provided GENERIC kernel. > >Thanks, David. I want to do the memory upgrade before I move from >1.1.5.1 to 2.0. Do I need to recompile my 1.1.5.1 kernel first? I don't >have any option "bounce buffers" in my config now, but I've experimented >recompiling my kernel lots, and feel comfortable with that. Will this >work? I want to move to 2.0 on Friday night. In 1.1.5, bounce buffer support is always included unless you specify "options NOBOUNCE". It was necessary to change the logic of the option because the previous form pre-supposes that a particular architecture even has them. -DG
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