--- linux-2.6.11/Documentation/kernel-parameters.txt.bak	2005-03-09 15:39:10.348323818 +0100
+++ linux-2.6.11/Documentation/kernel-parameters.txt	2005-03-10 00:41:15.289029890 +0100
@@ -837,6 +837,13 @@
 			instruction doesn't work correctly and not to
 			use it.
 
+	nohalt		[IA-64] Tells the kernel not to use the power saving 
+			function PAL_HALT_LIGHT when idle. This increases 
+			power-consumption. On the positive side, it reduces
+			interrupt wake-up latency, which may improve performance
+			in certain environments such as networked servers or
+			real-time systems.
+
 	noirqdebug	[IA-32] Disables the code which attempts to detect and
 			disable unhandled interrupt sources.