--- 2.3.48pre4/include/asm-i386/hw_irq.h.~1~	Sat Feb 26 18:18:40 2000
+++ 2.3.48pre4/include/asm-i386/hw_irq.h	Sun Feb 27 06:14:04 2000
@@ -186,6 +186,9 @@
  */
 static inline void x86_do_profile (unsigned long eip)
 {
+	if (!prof_buffer)
+		return;
+
 	/*
 	 * Only measure the CPUs specified by /proc/irq/prof_cpu_mask.
 	 * (default is all CPUs.)
@@ -193,7 +196,7 @@
 	if (!((1<<smp_processor_id()) & prof_cpu_mask))
 		return;
 
-	if (prof_buffer) {
+	if (current->pid) {
 		eip -= (unsigned long) &_stext;
 		eip >>= prof_shift;
 		/*