[Bug 90037] [xen iommu] 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 #24 from Ting-Wei Lan <lantw44 at gmail.com> ---
Created attachment 141535
  --> https://bugs.freedesktop.org/attachment.cgi?id=141535&action=edit
dmesg (Xen 4.10.1 + Linux 4.19.0-rc2+) #1

This is the log from the test of the first time. I am not sure why there is an
ext4 error in the log, but the kernel starts printing call traces after showing
the error.

I forgot to ask Xen to load Intel CPU microcode update in this test, but I
think it should not affect the test result. There is a gap between 11.948721
and 315.808150 in the log because it took 10 minutes to activate LVM.

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