2.4.14

 arch

 i386

 kernel

diff -u --recursive --new-file v2.4.13/linux/arch/i386/kernel/irq.c linux/arch/i386/kernel/irq.c
--- v2.4.13/linux/arch/i386/kernel/irq.c   Sun Sep 23 11:40:55 2001
+++ linux/arch/i386/kernel/irq.c   Thu Oct 25 13:53:46 2001
@@ -512,6 +512,7 @@
    if (!local_irq_count(smp_processor_id())) {
       do {
          barrier();
+         cpu_relax();
       } while (irq_desc[irq].status & IRQ_INPROGRESS);
    }
 }
@@ -766,8 +767,10 @@
 
 #ifdef CONFIG_SMP
          /* Wait to make sure it's not being used on another CPU */
-         while (desc->status & IRQ_INPROGRESS)
+         while (desc->status & IRQ_INPROGRESS) {
             barrier();
+            cpu_relax();
+         }
 #endif
          kfree(action);
          return;