[Xen-bugs] [Bug 1644] xen does not boot when iommu is on after upgrading to xen 4.0.1-rc5 from rc3

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1644





------- Comment #8 from konrad.wilk@xxxxxxxxxx  2010-12-17 06:54 -------
Can you provide the serial output or 'xm dmesg' with 'iommu=verbose' as
bootline? I am curious to see whether we detect the DMAR (Intel VT-D chipset)
or if it is busted.

You did upgrade to the latest BIOS, right?


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