diff -Naru vanilla.old/arch/x86/kernel/cpu/intel.c vanilla/arch/x86/kernel/cpu/intel.c
--- vanilla.old/arch/x86/kernel/cpu/intel.c	2010-04-02 05:59:14.000000000 +0700
+++ vanilla/arch/x86/kernel/cpu/intel.c	2010-04-21 09:51:02.000000000 +0700
@@ -70,8 +70,10 @@
 	if (c->x86_power & (1 << 8)) {
 		set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
 		set_cpu_cap(c, X86_FEATURE_NONSTOP_TSC);
+	/*
 		if (!check_tsc_unstable())
 			sched_clock_stable = 1;
+	 */
 	}
 
 	/*