Backport of this patch here http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg270684.html Needed for 2.6.24 to compile with gcc 4.3 Index: linux-2.6.24/include/linux/time.h =================================================================== --- linux-2.6.24.orig/include/linux/time.h 2008-05-28 15:39:46.000000000 -0700 +++ linux-2.6.24/include/linux/time.h 2008-05-28 15:40:48.000000000 -0700 @@ -173,6 +173,10 @@ { ns += a->tv_nsec; while(unlikely(ns >= NSEC_PER_SEC)) { + /* The following asm() prevents the compiler from + * optimising this loop into a modulo operation. */ + asm("" : "+r"(ns)); + ns -= NSEC_PER_SEC; a->tv_sec++; }