diff --git a/c/src/lib/libbsp/i386/ChangeLog b/c/src/lib/libbsp/i386/ChangeLog
index a0a02e8407..9848f8002b 100644
--- a/c/src/lib/libbsp/i386/ChangeLog
+++ b/c/src/lib/libbsp/i386/ChangeLog
@@ -1,3 +1,11 @@
+2011-04-04	Joel Sherrill <joel.sherrilL@OARcorp.com>
+
+	PR 1768/bsps
+	* shared/irq/irq_asm.S: The nbench benchmark highlighted the fact that
+	we do not perform a cld before calling C code in the ISR. This was
+	historically not a problem but gcc 4.3 changed the behavior. From
+	http://gcc.gnu.org/gcc-4.3/changes.html
+
 2009-05-18	Joel Sherrill <joel.sherrill@OARcorp.com>
 
 	* shared/irq/irq.c, shared/irq/irq.h, shared/irq/irq_asm.S: Add shared
diff --git a/c/src/lib/libbsp/i386/shared/irq/irq_asm.S b/c/src/lib/libbsp/i386/shared/irq/irq_asm.S
index c8f3df3b5e..fc53b54fdd 100644
--- a/c/src/lib/libbsp/i386/shared/irq/irq_asm.S
+++ b/c/src/lib/libbsp/i386/shared/irq/irq_asm.S
@@ -121,6 +121,13 @@ nested:
 	movl	  ebp, esp
 	popl	  ebp
 
+        /*
+         * GCC versions starting with 4.3 no longer place the cld
+         * instruction before string operations.  We  need to ensure
+         * it is set correctly for ISR handlers.
+         */
+        cld
+
 	/*
 	 * restore the original i8259 masks
 	 */