DMAR fault?

[Mogens Jensen <mogens-jensen@xxxxxxxxxxxxxx>]

I have installed Xen 4.13 on a Intel Ivy Bridge system.

"xl dmesg" shows that the entire ring buffer is filled with these
messages:

(XEN) [VT-D]DMAR:[DMA Read] Request device [0000:00:02.0] fault addr
93b2f5000
(XEN) printk: 1805 messages suppressed.

This is the device:

00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core
processor Graphics Controller

I do not see the error if booting Linux without Xen.

Can anyone explain what's going on here?

Thanks.


Regards,
Mogens Jensen