This is a patch to the Linux 2.2.2 kernel that disables the CPU serial
number misfeature in the new Intel Pentium III processor at boot time.
If Intel's documentation is correct, the serial number cannot then be
re-enabled without resetting the CPU. I.e., the only way to re-enable
the serial number is to remove this patch from the kernel, rebuild the
kernel and reboot the system.

<p>To install the patch, do:

<pre>
$ su
# cd /usr/src/linux
# patch -p0 < psn-patch
</pre>

<p>Remake and install the new kernel. My separate
<a href="../cpuid/">cpuid</a> utility is a handy way to verify that
the serial number is in fact disabled.

<p>I've submitted this patch to the Linux kernel maintainers. I'm told
that it will eventually appear in a regular release.


<p><a href="psn-patch">psn-patch</a>
<p><i>Last updated: 29 Apr 1999</i>
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