Xen project Mailing List

[Xen-devel] more bizarre rtc behaviour...

From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>

Date: Tue, 27 Dec 2005 14:44:52 +1100

Delivery-date: Tue, 27 Dec 2005 03:48:51 +0000

List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Thread-index: AcYKl+T9nQb9eVtpQ1+ONDivK6CQrg==

Thread-topic: more bizarre rtc behaviour...

I've posted before after noticing the "set_rtc_mmss: can't update from 70 to 15" messages. Today I ran 'hwclock' in a loop and noted the following (see after email body) Notice how, starting from :00 seconds, it counts forward 15 seconds (eg :00 to :15), then jumps back 6 seconds (eg to :10), and keeps doing this until it reaches :41, when it jumps forward 18 seconds. As I type this now, it is 14:39 AEDT (+11), and the hwclock says 16:39. NTP was not running whilst this data was gathered. Is there anything about xen which interferes with hwclock in dom0? If not, then I guess it is definitely a hardware problem... Thanks James Tue Dec 27 12:18:00 2005 -0.993390 seconds Tue Dec 27 12:18:01 2005 -0.990695 seconds Tue Dec 27 12:18:02 2005 -0.993371 seconds Tue Dec 27 12:18:03 2005 -0.993434 seconds Tue Dec 27 12:18:04 2005 -0.993482 seconds Tue Dec 27 12:18:05 2005 -0.993352 seconds Tue Dec 27 12:18:06 2005 -0.990247 seconds Tue Dec 27 12:18:07 2005 -0.993364 seconds Tue Dec 27 12:18:08 2005 -0.993603 seconds Tue Dec 27 12:18:09 2005 -0.993391 seconds Tue Dec 27 12:18:10 2005 -0.993395 seconds Tue Dec 27 12:18:11 2005 -0.991013 seconds Tue Dec 27 12:18:12 2005 -0.993282 seconds Tue Dec 27 12:18:13 2005 -0.993298 seconds Tue Dec 27 12:18:14 2005 -0.993201 seconds Tue Dec 27 12:18:15 2005 -0.993198 seconds Tue Dec 27 12:18:10 2005 -0.990900 seconds Tue Dec 27 12:18:11 2005 -0.993198 seconds Tue Dec 27 12:18:12 2005 -0.993186 seconds Tue Dec 27 12:18:13 2005 -0.993273 seconds Tue Dec 27 12:18:14 2005 -0.993281 seconds Tue Dec 27 12:18:15 2005 -0.984389 seconds Tue Dec 27 12:18:16 2005 -0.993490 seconds Tue Dec 27 12:18:17 2005 -0.993444 seconds Tue Dec 27 12:18:18 2005 -0.993306 seconds Tue Dec 27 12:18:19 2005 -0.993299 seconds Tue Dec 27 12:18:20 2005 -0.992690 seconds Tue Dec 27 12:18:21 2005 -0.992655 seconds Tue Dec 27 12:18:22 2005 -0.992566 seconds Tue Dec 27 12:18:23 2005 -0.992523 seconds Tue Dec 27 12:18:24 2005 -0.992417 seconds Tue Dec 27 12:18:25 2005 -0.992549 seconds Tue Dec 27 12:18:20 2005 -0.992427 seconds Tue Dec 27 12:18:21 2005 -0.992895 seconds Tue Dec 27 12:18:22 2005 -0.992470 seconds Tue Dec 27 12:18:23 2005 -0.992430 seconds Tue Dec 27 12:18:24 2005 -0.992436 seconds Tue Dec 27 12:18:25 2005 -0.992484 seconds Tue Dec 27 12:18:26 2005 -0.992524 seconds Tue Dec 27 12:18:27 2005 -0.992261 seconds Tue Dec 27 12:18:28 2005 -0.992587 seconds Tue Dec 27 12:18:29 2005 -0.992388 seconds Tue Dec 27 12:18:30 2005 -0.992862 seconds Tue Dec 27 12:18:31 2005 -0.992750 seconds Tue Dec 27 12:18:32 2005 -0.992417 seconds Tue Dec 27 12:18:33 2005 -0.992882 seconds Tue 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