Re: [Xen-devel] [xen-unstable bisection] complete test-amd64-i386-freebsd10-amd64

[Daniel Kiper <daniel.kiper@xxxxxxxxxx>]

Hi Roger,

On Tue, Feb 28, 2017 at 09:20:05AM +0000, Roger Pau Monné wrote:
> Hello,
>
> It seems that your changes are causing issues when booting a 32bit Dom0, it
> seems there are several IOMMU faults that prevent Dom0 from booting at all.
> AFAICT this only happens when using a 32bit Dom0. The bisector has pointed
> several times at this change, so it looks like the culprit.
>
> See for example:
>
> http://logs.test-lab.xenproject.org/osstest/logs/106186/
>
> This is the serial log of the box failing to boot:
>
> http://logs.test-lab.xenproject.org/osstest/logs/106186/test-amd64-i386-migrupgrade/serial-chardonnay0.log.0
>
> Search for "[VT-D]DMAR:[DMA Read] Request device [0000:01:00.0] fault addr
> 7cd3f000, iommu reg = ffff82c00021b000" to get to the first IOMMU fault.

I have missed it. Thanks for pointing out this. We are discussing how
to solve this issue in this thread:

https://lists.xen.org/archives/html/xen-devel/2017-02/msg03537.html

Daniel

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