+static void mwait_idle(void)
+{
+ mwait_idle_with_hints(0, 0);
+}
+
The reason the patch above will crash Core2 machines is because
core2 machines don't support mwait_idle_with_hints().
The calling sequence for old and new MWAIT instructions is different.
The former must be invoked with interrupts enabled,
and the later can be invoked with interrupts disabled,
which is a feature that Linux takes advantage of.
thanks,
-Len
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