Index: linux-stable/arch/powerpc/platforms/8xx/m8xx_setup.c
===================================================================
--- linux-stable.orig/arch/powerpc/platforms/8xx/m8xx_setup.c
+++ linux-stable/arch/powerpc/platforms/8xx/m8xx_setup.c
@@ -43,6 +43,7 @@ static irqreturn_t timebase_interrupt(in
 
 static struct irqaction tbint_irqaction = {
 	.handler = timebase_interrupt,
+	.flags = IRQF_NO_THREAD,
 	.name = "tbint",
 };
 
Index: linux-stable/arch/powerpc/sysdev/cpm1.c
===================================================================
--- linux-stable.orig/arch/powerpc/sysdev/cpm1.c
+++ linux-stable/arch/powerpc/sysdev/cpm1.c
@@ -120,6 +120,7 @@ static irqreturn_t cpm_error_interrupt(i
 
 static struct irqaction cpm_error_irqaction = {
 	.handler = cpm_error_interrupt,
+	.flags = IRQF_NO_THREAD,
 	.name = "error",
 };