From: Kerin Millar <kerframil@gmail.com>

This is a backport to 2.6.25 of commit 612f39d5e7baeb0518cfe50d53e37e14c0ca1475
from Ingo Molnar, which disables hrtick (high-resolution preemption ticks). For
further information, please refer to Gentoo Bug #247453.

--- a/kernel/sched.c	2008-04-17 03:49:44.000000000 +0100
+++ b/kernel/sched.c	2008-11-18 20:30:33.000000000 +0000
@@ -602,7 +602,7 @@
 		SCHED_FEAT_NEW_FAIR_SLEEPERS	* 1 |
 		SCHED_FEAT_WAKEUP_PREEMPT	* 1 |
 		SCHED_FEAT_START_DEBIT		* 1 |
-		SCHED_FEAT_HRTICK		* 1 |
+		SCHED_FEAT_HRTICK		* 0 |
 		SCHED_FEAT_DOUBLE_TICK		* 0;
 
 #define sched_feat(x) (sysctl_sched_features & SCHED_FEAT_##x)