<div>Hi,</div>
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<div>I read a few articles on linux virtual memory management such as this one :</div>
<div><a href="http://lwn.net/Articles/75174/">http://lwn.net/Articles/75174/</a></div>
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<div>which say that earlier linux kernel could only use memory slightly below 1 GB. They have </div>
<div>given the reason for it but I am unable to understand.They further describe the use of High memory and low memory.</div>
<div>Could anybody please explain the reason for kernel not being able to use the 1 GB completely?</div>
<div>Also please provide references for high memory and low memory.</div>
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<div>Thanks</div>
<div>Vaibhav Jain</div>
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