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Re: Maximum physical memory on i386 platform

To: Ravi K <kravi26@yahoo.com>
Subject: Re: Maximum physical memory on i386 platform
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 02 Jan 2002 17:27:26 -0800
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Ravi K wrote:

> Hi,
>   The configuration help for HIGHMEM feature on i386
> platform states that 'Linux can use up to 64 Gigabytes
> of physical memory on x86 systems'. I see a problem
> with this:
>  - page structures needed to support 64GB would take
> up 1GB memory (64 bytes per page of size 4k) 


64GB is physical memory, not virtual memory.

	-hpa



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- Maximum physical memory on i386 platform
  - From: Ravi K <kravi26@yahoo.com>

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