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From: "M. Warner Losh" <imp@bsdimp.com>
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Subject: Re: cvs commit: src/sys/alpha/isa isa_dma.c src/sys/amd64/isa
 isa_dma.c src/sys/i386/isa isa_dma.c src/sys/ia64/isa isa_dma.c
 src/sys/pc98/pc98 isa_dma.c src/sys/isa isavar.h src/sys/vm vm_page.c
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In message: <20040915200627.GF36708@green.homeunix.org>
            Brian Fundakowski Feldman <green@freebsd.org> writes:
: > I have patches, improved by Tor and phk, that move the acquisision of
: > the dma buffer to attach.
: > 
: > The problem is that 40k isn't too big, but 40k below 16MB is very hard
: > after boon on large memory machines due to the amount of RAM allocated
: > in the boot process.
: 
: Well, 40kb below 16MB _during_boot_ shouldn't be too hard, certainly
: more so with large memory machines though, indeed...

The larger the memory, the more there seems to be allocated during the
boot process, so it disappears relatively early on.

Warner