[Bug 90037] After upgrading to Linux 3.19, desktop no longer works in Xen 4.5.0 dom0

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90037

--- Comment #7 from Ting-Wei Lan <lantw44 at gmail.com> ---
It seems this problem is related to Intel VT-d. If I disable VT-d by adding
iommu=off to Xen boot options, this error will not happen.

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