Date: Fri, 27 Jun 2003 15:49:04 +0200 From: Stijn Hoop <stijn@win.tue.nl> To: Robert Watson <rwatson@freebsd.org> Cc: stable@freebsd.org Subject: Re: alternate system clock has died Message-ID: <20030627134904.GD90536@pcwin002.win.tue.nl> In-Reply-To: <Pine.NEB.3.96L.1030627093647.72040D-100000@fledge.watson.org> References: <20030627115208.GC90536@pcwin002.win.tue.nl> <Pine.NEB.3.96L.1030627093647.72040D-100000@fledge.watson.org>
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--g7w8+K/95kPelPD2 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jun 27, 2003 at 09:39:06AM -0400, Robert Watson wrote: > Many vendors have hardware diagnostic CD's available on their web sites > that test various aspects of the system, such as the accuracy of the > clock, the proper functioning of timers, etc. You might want to give one > a spin. Also, if you have any identical (or very similar hardware) that > does or does not exhibit the problem, that would be interesting also. Unfortunately I don't have identical hardware available, but I'll check out the mainboard vendor site for diagnostics. > Speaking of systat -vmstat, in the interrupts column, what is the > interrupt count for the rtc and clk lines? I don't know because I can't get systat -vmstat to display anything but the skeleton -- it waits about 5 seconds then prints this on a blank screen: The alternate system clock has died! Reverting to ``pigs'' display. (which it then promptly does). Hmm, wait. I'll try and comment out the check for etime < 0.5 in usr.bin/systat/vmstat.c. OK, this works, I now get this with my hacked version: 643840 clk irq0 rtc irq8 Well that seems to be a pretty high rate, compared to a 4.7-PRE workstation that does 100 interrupts a second :) So what does this tell me? --Stijn --=20 Q: Why is Batman better than Bill Gates? A: Batman was able to beat the Penguin. --g7w8+K/95kPelPD2 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (FreeBSD) iD8DBQE+/EtQY3r/tLQmfWcRAvKHAKCRYG336Scc9sDq+lrCcePE26+AQACdGpE2 XEfH6pxjmPE3UkI39AbFsFo= =TdaX -----END PGP SIGNATURE----- --g7w8+K/95kPelPD2--
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