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	Thu, 27 Mar 1997 22:08:57 -0500 (EST)
Date: Thu, 27 Mar 1997 22:08:57 -0500 (EST)
From: "Kenneth R. Westerback" <krw@tcn.net>
To: David Greenman <dg@root.com>
cc: Doug White <dwhite@resnet.uoregon.edu>, freebsd-questions@freebsd.org
Subject: Re: Lost boot up (pre DMESG) messages - BIOS mem ... 
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Thanks for the replies.  I am not worried about the message or even the 1K
lost (which I understand perfectly - I had already checked my BIOS before 
sending the message to see if that 1K was configurable like it was on
some of my older machines), I'm merely curious what the acronym
RTC stand for (if anything!) Real Time Clock? Nah. Read The CMOS? Hmmm.

---- Ken

On Thu, 27 Mar 1997, David Greenman wrote:

> >>   BIOS base mem (639K) != RTC base mem (640K), setting to BIOS value
> >>   Copyright FreeBSD ...
> >>   ... and rest of DMESG recoverable stuff ...
> >> 
> >> Do you know what RTC stands for?  Just curious about the hidden meaning in
> >> this message. With 32M I guess I won't miss 1K, but I am curious about
> >> where it goes!
> >
> >RTC == CMOS 
> >
> >Don't sweat it. I don't even think the first 1mb is used by the kernel
> >because it's divided.
> 
>    The first 640K is used by the kernel. The next 384K is the ISA hole and
> the remainder is "extended memory".
>    The message indicates that the BIOS wants to reserve 1K of memory at the
> end of 'base' memory. The message is harmless. In previous releases, FreeBSD
> went ahead and used the memory, but now we do what the BIOS wants and just
> warn about it. The warning should be removed or only come out if the amount
> of memory the BIOS wishes to reserve is unusually large.
> 
> -DG
> 
> David Greenman
> Core-team/Principal Architect, The FreeBSD Project
> 
>