Date: Mon, 30 Nov 1998 15:31:43 +1100 From: Bruce Evans <bde@zeta.org.au> To: bde@zeta.org.au, deischen@iworks.interworks.org, majordom@FreeBSD.ORG Cc: current@FreeBSD.ORG, elias@cnetworks.net, green@unixhelp.org, phk@FreeBSD.ORG, seggers@semyam.dinoco.de Subject: Re: kern_clock.c (was: video mode switching has gone south) Message-ID: <199811300431.PAA20359@godzilla.zeta.org.au>
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>> My system is running a Cyrix 686MX PR266, so this doesn't seem to be >> limited to the AMD processors. > >Well, it affects my laptop also (Intel Pentium 200MHz MMX). I do >not run xntpd, but I am running the kernel at HZ=1000. Increasing HZ certainly amplifies the old bug. The timecounters will cycle every NTIMECOUNTER/hz seconds, and problems occur if handling a bunch of interrupts (or one heavweight interrupt) ever takes longer than this. You need to increase NTIMECOUNTER to 10 times what would work for HZ=100. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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