Mailinglist Archive: opensuse (1599 mails)

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Re: [opensuse] How to set up LIRC?
  • From: James Knott <james.knott@xxxxxxxxxx>
  • Date: Thu, 29 Oct 2009 09:53:41 -0400
  • Message-id: <4AE99E65.6060709@xxxxxxxxxx>
Philipp Thomas wrote:
* James Knott (james.knott@xxxxxxxxxx) [20091029 13:29]:

Why would they enable something they don't need? An x86-64 kernel runs
only on an x86-64 CPU, where such tricks aren't needed.

You seem to forget the 32bit emulation of x86_64 processors.

No I haven't. The 32 bit mode is for running the 32 bit kernels. The
64 bit kernels run 64 bits and don't need PAE. PAE was a hack to get
around the address limitation of a 32 bit CPU. The amount of memory a
64 bit CPU can handle is more than 4 billion times greater than what a
32 bit CPU can do.
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