Index: linux-2.6/arch/x86/kernel/tsc.c =================================================================== --- linux-2.6.orig/arch/x86/kernel/tsc.c 2008-10-17 14:56:23.000000000 -0700 +++ linux-2.6/arch/x86/kernel/tsc.c 2008-10-17 15:01:38.000000000 -0700 @@ -163,6 +163,8 @@ pitcnt++; } + printk("DEBUG: pitcnt %d, tscmin %lu, tscmax %lu\n", + pitcnt, tscmin, tscmax); /* * Sanity checks: *