Date: Wed, 2 Jul 2008 22:54:31 +0100 From: Rui Paulo <rpaulo@FreeBSD.org> To: Joerg Wunsch <joerg_wunsch@uriah.heep.sax.de> Cc: freebsd-acpi@FreeBSD.org Subject: Re: HP/Compaq nx6325 clock "jumping around" Message-ID: <20080702215431.GC1790@phi.local> In-Reply-To: <20080702191827.GK1469@uriah.heep.sax.de> References: <20080702191827.GK1469@uriah.heep.sax.de>
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On Wed, Jul 02, 2008 at 09:18:27PM +0200, Joerg Wunsch wrote: > On a nx6325 running 6-stable (because I couldn't get 7.x to work with > ACPI at all so far), the main clock is frequently "jumping", up to a > level where ntpd eventually gives up: > > Jul 2 10:44:44 remi ntpd[50885]: time reset +11.885037 s > Jul 2 10:44:44 remi ntpd[50885]: kernel time sync disabled 6041 > Jul 2 10:54:24 remi ntpd[50885]: kernel time sync disabled 2041 > Jul 2 11:07:13 remi ntpd[50885]: kernel time sync enabled 2001 > Jul 2 11:45:44 remi ntpd[50885]: time reset +1.874996 s > Jul 2 11:45:44 remi ntpd[50885]: kernel time sync enabled 6001 > Jul 2 11:55:25 remi ntpd[50885]: kernel time sync enabled 2001 > Jul 2 12:06:07 remi ntpd[50885]: time reset -0.539515 s > Jul 2 13:47:45 remi ntpd[50885]: time reset +901.759394 s > Jul 2 13:47:45 remi ntpd[50885]: kernel time sync enabled 6001 > Jul 2 13:57:25 remi ntpd[50885]: kernel time sync enabled 2001 > Jul 2 14:05:58 remi ntpd[50885]: time reset +0.159707 s > Jul 2 14:24:08 remi ntpd[50885]: time reset +0.451464 s > Jul 2 14:42:15 remi ntpd[50885]: time reset +0.323177 s > Jul 2 15:00:25 remi ntpd[50885]: time reset -0.525669 s > Jul 2 15:45:34 remi ntpd[50885]: time reset -0.197339 s > Jul 2 18:10:59 remi ntpd[50885]: time reset +894.125104 s > Jul 2 18:10:59 remi ntpd[50885]: kernel time sync enabled 6001 > Jul 2 19:03:17 remi ntpd[50885]: time correction of 1785 seconds exceeds sanity limit (1000); set clock manually to the correct UTC time. > > Notice the huge time resets of about 900 seconds between. Could this > be related to CPU frequency changes caused by whomever might control > that (ACPI BIOS? powerd is not running, should I?)? The CPU > frequencies listed are: > > dev.cpu.0.freq: 1393 > dev.cpu.0.freq_levels: 1990/100000 1791/81822 1592/65808 1393/57582 1194/49356 995/41130 796/22152 696/19383 597/16614 497/13845 398/11076 298/8307 199/5538 99/2769 Maybe, or maybe not. Try also change kern.timecounter.hardware. HTH, -- Rui Paulo
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