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 :: Mailing Lists

[ILUG] linux does not detect all my ram

[ILUG] linux does not detect all my ram

Paul J Collins sneakums at zork.net
Mon Apr 23 12:07:13 IST 2001


>>>>> "CD" == Conor Daly <conor.daly at met.ie> writes:

    CD> Be careful there, something somewhere says to leave 1Mb out of
    CD> the number above.  Not sure why but it gave me kernel panics
    CD> with mem=128M but was quite happy with "mem=127M".  I think it
    CD> should be lower-case "mem" rather than upper.

If you put in "mem=256M", Linux will enable a special mode where each
group of four 4K pages is compressed into a pair of pages.  It slows
things down a little but it works well with a fast CPU.  If you do
this, be sure to also pass swaptables=no; paging pagetables sounds
neat, but it's never worked right.

-- 
"Weaseling out of things is what separates us from the 
 animals ... except the weasel."
	-- Emad El-Haraty




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