linux-kernel - Re: General slowness with using 64Gb HIGHMEM option on 32-bit kernel

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Message-ID: <dd4eba420709281057x69a9366cp8fc755782efea656@mail.gmail.com>
Date:	Fri, 28 Sep 2007 21:57:55 +0400
From:	"Sergey Popov" <faijeya@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Re: General slowness with using 64Gb HIGHMEM option on 32-bit kernel

Ok, I found a palliative.

Now I'm working with "mem=6770M" option, that gives me 6072MB RAM (of
6144 total).
Interesting, that if you choose too much, like "mem=6800M", system
behaviour is exactly the same as without any options.

Can it be that kernel incorrectly sets amount of memory to use so such
a situation occurs?
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