mem= parameter, 2.4.18 vs 2.4.24

From: Jan Knutar
Date: Tue Feb 17 2004 - 18:21:45 EST


Just upgraded an old computer from 2.4.18 to 2.4.24. The system has 24M
ram, but the bios reports only 16.

Discovered that mem=24M doesn't let Linux use all of it, like in 2.4.18,
only 16M in 2.4.24.

mem=8M@16M has the desired result, making the whole incredibly large 24M
ram available :-)

RTFSing leads me to believe that mem=xxxM can only limit ram size, but
Documentation/memory.txt and Documentation/kernel-parameters.txt make
me think ram=24M should work like it did in 2.4.18. I'm guessing
nobody updated the documentation? :)

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