Date: Fri, 12 Sep 1997 21:58:38 -0700 (PDT) From: Doug White <dwhite@gdi.uoregon.edu> To: Hoffmann Yen-Wei Liu <ywliu1@tao.sinanet.com.tw> Cc: questions@FreeBSD.ORG Subject: Re: Kernel clock runs inaccurately Message-ID: <Pine.BSF.3.96.970912215624.17774U-100000@localhost> In-Reply-To: <199709080315.LAA15236@tao.sinanet.com.tw>
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On Mon, 8 Sep 1997, Hoffmann Yen-Wei Liu wrote: > I just got myself a new AMD k6-200, and I found out a major problem : > it runs about 30 seconds faster per day. So two days later, it runs > 2 minutes faster. However, the CMOS clock runs around 2 seconds slower > per day. This is acceptable to me. > > 1) I know Pentium motherboard clock isn't accurate. But is there any workaround > for me to set options or modify clock.c to make the kernel clock runs in > a acceptably inaccurate range ? It sounds like your problem is quite variable. Setting hard-coded values may not get you close enough between boots. > 2) Does changing to a new motherboard with better quality help ? Yeah, it would probably help your clock stability, depending on the quality of clock crystal you get. If you have permanent net access, look into running xntpd. It'll sync your time off of the official time and will compensate for your busted clock chip. They've had to deal with that problem on Suns too, so it should help you out. > 3) I run OSS/FreeBSD commercial sound driver. Does this possibly matter ? Shouldn't. Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major Spam routed to /dev/null by Procmail | Death to Cyberpromo
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