Re: [Xen-devel] Skylake: VT-d and other error messages

[Eric Shelton <eshelton@xxxxxxxxx>]

On Wed, Dec 2, 2015 at 10:41 AM, Jan Beulich <JBeulich@xxxxxxxx> wrote:

>>> On 02.12.15 at 16:37, <knockknock@xxxxxxxxx> wrote:
> On Dec 2, 2015, at 10:28 AM, Jan Beulich <JBeulich@xxxxxxxx> wrote:
>
>>>>> On 02.12.15 at 16:04, <eshelton@xxxxxxxxx> wrote:
>>> I have attached the output from 'xl dmesg' with iommu=debug
>>> apic_verbosity=debug loglvl=all
>>
>> As of 4.6.0 it actually takes a debug hypervisor to get those
>> messages logged (which arguably is wrong, and which quite
>> certainly is wrong for messages accompanying error returns).
>
> So when I rebuild the hypervisor, it sounds like I should be doing a debug
> build?

Yes please.

With my current setup, it was easier for me to go back to 4.4.3. Apparently the IOAPIC is at 0000:f0.1f.0. Output from 'xl dmesg'' is attached.

Eric

Attachment: xl-dmesg-4.4.3.txt
Description: Text document

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