Re: 2.6.18-rc3-mm2 early_param mem= fix

From: Andi Kleen
Date: Sun Aug 06 2006 - 22:04:51 EST

On Sunday 06 August 2006 21:15, Andrew Morton wrote:
> On Sun, 6 Aug 2006 18:22:04 +0100 (BST)
> Hugh Dickins <hugh@xxxxxxxxxxx> wrote:
> > I was impressed by how fast 2.6.18-rc3-mm2 is under memory pressure,
> > until I noticed that my "mem=512M" boot option was doing nothing. The
> > two fixes below got it working, but I wonder how many other early_param
> > "option=" args are wrong (e.g. "memmap=" in the same file): x86_64
> > shows many such, i386 shows only one, I've not followed it up further.
> Thanks again.
> Andi, it sounds like so many fixes will be needed there that it's worth
> dropping, pending rev #2.

Yes, it looks like it. Now I remember why I dropped this a long time
ago already ;-)

After fixing Hugh's issue with all parameters
(there were some more with this) the kernel goes into an endless loop
at boot when you have one which is a full prefix of another.

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