http://forum.canardpc.com/threads/110950-fix-controller-loop-error

--- a/Makefile
+++ b/Makefile
@@ -12,7 +12,7 @@ FDISK=/dev/fd0
 AS=as -32
 CC=gcc
 
-CFLAGS= -Wall -Werror -march=i486 -m32 -O1 -fomit-frame-pointer -fno-builtin \
+CFLAGS= -Wall -Werror -march=i486 -m32 -O0 -fomit-frame-pointer -fno-builtin \
  -ffreestanding -fPIC $(SMP_FL) -fno-stack-protector
 
 SELF_TEST_CFLAGS = -Wall -Werror -march=i486 -m32 -O1 -g