Date: Mon, 13 Nov 2000 23:56:44 +0100 From: Poul-Henning Kamp <phk@freebsd.org> To: current@freebsd.org Subject: Current has hosed the i8254 timecounter... Message-ID: <4113.974156204@critter>
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It seems that something recently toasted the quasi-magic i8254 timecounter code to the point of unusability. On my laptop I run a ntpdate every minute, and the result looks like this: Nov 13 23:37:00 [...] step time server 212.242.40.181 offset -2.862805 sec Nov 13 23:38:00 [...] step time server 212.242.40.181 offset -6.109507 sec Nov 13 23:39:00 [...] step time server 212.242.40.181 offset -5.299533 sec Nov 13 23:40:01 [...] step time server 212.242.40.181 offset -11.220085 sec Nov 13 23:41:00 [...] step time server 212.242.40.181 offset -6.449271 sec Nov 13 23:42:00 [...] step time server 212.242.40.181 offset -5.190362 sec Nov 13 23:43:00 [...] step time server 212.242.40.181 offset -5.438783 sec Nov 13 23:45:00 [...] step time server 212.242.40.181 offset -4.535331 sec Nov 13 23:46:00 [...] step time server 212.242.40.181 offset -6.052685 sec Nov 13 23:47:01 [...] step time server 212.242.40.181 offset -3.289484 sec Nov 13 23:48:00 [...] step time server 212.242.40.181 offset -2.659785 sec Nov 13 23:49:00 [...] step time server 212.242.40.181 offset -3.276033 sec Nov 13 23:50:00 [...] step time server 212.242.40.181 offset -0.919082 sec Nov 13 23:51:00 [...] step time server 212.242.40.181 offset -4.163177 sec Nov 13 23:52:00 [...] step time server 212.242.40.181 offset -7.449300 sec This is on a laptop with APM enabled btw. You should be able to force the use of the i8254 timecounter by sysctl -w kern.timecounter.hardware=i8254 -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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