diff -r c677f4e75608 linux-2.6-xen-sparse/arch/i386/kernel/time-xen.c
--- a/linux-2.6-xen-sparse/arch/i386/kernel/time-xen.c	Thu Nov 16 11:11:17 2006 +0000
+++ b/linux-2.6-xen-sparse/arch/i386/kernel/time-xen.c	Thu Nov 16 13:19:29 2006 -0500
@@ -716,6 +716,7 @@ irqreturn_t timer_interrupt(int irq, voi
 		rcu_check_callbacks(cpu, user_mode(regs));
 	scheduler_tick();
 	run_posix_cpu_timers(current);
+	profile_tick(CPU_PROFILING, regs);
 
 	return IRQ_HANDLED;
 }