Re: 2xPIIIx450 results & NFS results

[Bruce Evans]

> I remember this one too.  I think the problem is that we fail to 
> service the RTC intr for some reason.  This patch was only a 
> workaround, and received a verbal broadside from Bruce if I
> remember right.
> 
> Maybe it should be added under a sysctl until a better solution
> is know.
> 
> --- clock.c   Sat Sep 18 22:41:40 1999
> +++ clock.c.new       Sun Sep  5 13:21:35 1999
> @@ -203,4 +203,6 @@
>  clkintr(struct clockframe frame)
>  {
> +     while (rtcin(RTC_INTR) & RTCIR_PERIOD)
> +             statclock(&frame);
>       if (timecounter->tc_get_timecount == i8254_get_timecount) {
>               disable_intr();

Use a watchdog timeout like you should for any device that may hang.
Don't waste time running it every clock tick.

ISTR that we thought that the bug might be caused by a bug in unwanted
SMI interrupt handling.

Bruce



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