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[Xen-users] Timer ISR Errors?

To: Xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Timer ISR Errors?
From: Reuben Kabel <reub@xxxxxxxxx>
Date: Mon, 25 Jul 2005 10:45:07 -0400 (EDT)
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Hi Folks,

I've been trying unsuccessfully over the past couple of weeks to bring Xen up on a new AMD dual-core system. I've resolved a number of issues, but am still unable to boot the hypervisor. I can reproduce this particular error using both the Xen 2.0.6 live CD and the SuSE 9.3 compiled version of Xen. Fedora Core 4's packaged version seemed to die with other errors (or the same error manifested a different way).

System:
Asus A8N-e motherboard running the latest (1006.003) bios.
AMD Athlon 64 X2 4400+
4GB Ram
(more detail available upon request)

Error:
As Xen boots, it inevitably comes to a point where all it does is write errors to the console in a seemingly infinite loop saying:

"Timer ISR: Time went backwards -xxxxx xxxxx xxxxx"
where the x's look to be time offsets.

I saw a couple notes on the devel list regarding a similar error, but it seemed a good while ago and applied to a domU.

I'm not sure how to capture log output without making use of the serial output. If someone could point me that way, I can provide the entire log. Thanks in advance for your help and thanks to everyone who's worked on this - it's fantastic. - Reuben

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