On Tue, Aug 16, 2005 at 02:30:51AM +1000, Con Kolivas wrote: > Time definitely was lost the longer the machine was running.
I think I found the reason for time drift. Basically cur_timer->mark_offset doesnt expect to be called from non-timer interrupt handler. Hence it drops one jiffy from the lost count. I fixed this in some "crude" fashion and time has not drifted so far or is pretty much close to what it was in pre-smp version. Will find a neat way to fix this and post a patch soon. > You mean disable it at runtime or not compile it in at all? Disabling it at > runtime caused what I described to you as PIT mode (long stalls etc). I think I have recreated this on a machine here. Disabling CONFIG_DYN_TICK_APIC at compile-time didnt seem to make any difference. Will look at this problem next. -- Thanks and Regards, Srivatsa Vaddagiri, Linux Technology Center, IBM Software Labs, Bangalore, INDIA - 560017 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
