Date: Thu, 20 May 1999 08:42:38 -0500 From: Bob Willcox <bob@luke.pmr.com> To: Nicole Harrington <nicole@nmhtech.com> Cc: Thiemo Nordenholz <nordenholz@rz.tu-clausthal.de>, freebsd-smp@FreeBSD.ORG Subject: Re: SMP on P2B-DS with 2*P-II 400 - does it work? Message-ID: <19990520084238.A17516@luke.pmr.com> In-Reply-To: <XFMail.990519192311.nicole@nmhtech.com>; from Nicole Harrington on Wed, May 19, 1999 at 07:23:11PM -0700 References: <199905191139.NAA06567@troubadix.rz.tu-clausthal.de> <XFMail.990519192311.nicole@nmhtech.com>
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On Wed, May 19, 1999 at 07:23:11PM -0700, Nicole Harrington wrote:
>
> On 19-May-99 My Secret Spies Reported That Thiemo Nordenholz wrote:
> > Hi SMPers,
> >
> > I'm going to buy an ASUS P2B-DS mainboard and 2 P-II 400 CPUs and want to
> > use them with SMP and some current FreeBSD - is anyone using a similar setup
> > and could provide some hints what I should keep in mind when setting it up?
> > Does SMP work with this hardware? I've also heard rumors about the on-board
> > SCSI controller working only unstable, shall I believe that?
> >
> > Thanks for any help,
> > Thiemo
>
>
> I have been using it and it seems ok, however there seems to be an issue on
> the clocking. So top won't display cpu usage and systat -vmstat won't work at
> all.
There is this hack that I've been using to work around the clock problem:
Index: src/sys/i386/isa/clock.c
===================================================================
RCS file: /usr/cvs/FreeBSD/src/sys/i386/isa/clock.c,v
retrieving revision 1.129
diff -u -u -r1.129 clock.c
--- clock.c 1998/12/14 13:30:29 1.129
+++ clock.c 1999/03/27 21:40:20
@@ -198,6 +198,10 @@
static void
clkintr(struct clockframe frame)
{
+#if BROKEN_RTC_KLUDGE /* RWW - kludge from Tor Egge to keep rtc running */
+ while (rtcin(RTC_INTR) & RTCIR_PERIOD)
+ statclock(&frame);
+#endif
if (timecounter->tc_get_timecount == i8254_get_timecount) {
/*
* Maintain i8254_offset and related variables. Optimize
You will have to set "options BROKEN_RTC_KLUDGE" in your kernel config
file and rebuild your kernel.
>
> I just ordered a TYAN board to test as a replacement.
>
> Nicole
>
--
Bob Willcox The man who follows the crowd will usually get no
bob@luke.pmr.com further than the crowd. The man who walks alone is
Austin, TX likely to find himself in places no one has ever
been. -- Alan Ashley-Pitt
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