Date: Tue, 06 May 2003 10:13:46 -0500 From: Eric Anderson <anderson@centtech.com> To: Terry Lambert <tlambert2@mindspring.com> Cc: Kyle Rollin <knr@xy.hartford.edu> Subject: Re: Real and availible RAM Message-ID: <3EB7D12A.2000104@centtech.com> References: <3801.172.182.185.39.1052141430.squirrel@bluhayz.homeunix.org> <20030505180224.M13866@xy.hartford.edu> <3EB6A981.1030504@centtech.com> <3EB7353F.373470F2@mindspring.com> <3EB7B156.2030701@centtech.com> <3EB7CEE9.BBB2A626@mindspring.com>
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Terry Lambert wrote: > Eric Anderson wrote: > >>I think you missed my point - I wasn't saying that FreeBSD is hiding >>anything, nor was I talking about the "missing 6mb problem" directly. >>You pretty much repeated my point though - "Since the BIOS is where >>FreeBSD obtains the "real memory" number" - which is what I said, that >>the BIOS takes the physical RAM, subtracts what it needs for devices >>like video cards (that "borrow" from physical main memory), then reports >>that result to any OS/Apps/etc that ask for it. That is why my system >>doesn't show the 256Mb of memory it has in it, it shows something like >>224Mb (32Mb is set aside for the video card).. >> >>Unless I am totally missing your point this morning.. :) > > > You are. The video memory you are talking about in this case is > accounted for by the AGP or a similar video driver. It is not > sucked up by the BIOS. At most, the BIOS will "eat" a few K > (usually, no more than 4K) that is unknown to the OS. Ahh.. right you are.. thanks for the correction.. > Again, you really need to read the machdep.c code, particularly > the "memsize()" function. Yep - I see now.. thanks for the pointer (again). Eric -- ------------------------------------------------------------------ Eric Anderson Systems Administrator Centaur Technology Attitudes are contagious, is yours worth catching? ------------------------------------------------------------------
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