So, the “working” part … the hypervisor up, and Dom0 running, is correct.  

However, after ~5 minutes, the AHCI buses timeout.  This seems to be constantly 
reproducible via Dom0.  FreeBSD on the this bare metal does’t have this issue.

David P. Discher
AIM: DavidDPD | Y!M: daviddpdz 

On Dec 3, 2014, at 1:50 PM, David P. Discher <> wrote:

> On Dec 3, 2014, at 11:55 AM, Roger Pau Monné <> wrote:
>> Not sure what's going on now, could you post the full boot log with the
>> provided patch applied and when it hangs switch to the Xen console
>> (Ctrl+A 3 times), then press "i" and "Q" and also post the output?
>> Also, add the following to your Xen command line:
>> iommu=debug
>> And if you can try to play with the iommu options, I would recommend
>> also trying:
>> iommu=debug,no-intremap
>> Roger.
> Well, you know what - I made a happy mistake.  It doesn’t look like that last 
> patch hung it, but actually worked!
> After the Control-A didn’t work over the IPMI SOL, i pulled up the video 
> console, and it had a login prompt.  Network up, Dom0 working!  Looks like it 
> loses uart2:

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