--- latencytest/kernel/latencytest.c.orig	2004-07-11 12:29:30.000000000 +0200
+++ latencytest/kernel/latencytest.c	2004-07-11 16:29:48.883109752 +0200
@@ -41,7 +41,7 @@ static void my_interrupt(void *private_d
 	spin_lock(&my_lock);
 	count++;
 	if (count < irq_count)
-		return;
+		goto out_unlock;
 	count = 0;
 	if (irq_info.processed < MAX_PROC_CNTS) {
 		int i;
@@ -69,6 +69,7 @@ static void my_interrupt(void *private_d
 	}
 	irq_info.processed++;
 	wake_up(&my_sleep);
+out_unlock:
 	spin_unlock(&my_lock);
 }
 
--- latencytest/src/measure.c.orig	2004-07-11 14:20:57.000000000 +0200
+++ latencytest/src/measure.c	2004-07-11 16:25:32.375104896 +0200
@@ -35,9 +35,13 @@ static FILE *profile_fd;
 
 static inline unsigned long long int rdtsc(void)
 {
-	unsigned long long int x;
-	__asm__ volatile ("rdtsc" : "=A" (x));
-	return x;
+	unsigned long long int x, y;
+	for (;;) {
+		__asm__ volatile ("rdtsc" : "=A" (x));
+		__asm__ volatile ("rdtsc" : "=A" (y));
+		if (y - x < 1000)
+			return y;
+	}
 }
 
 static unsigned long long time_offset;