Re: [Xen-devel] Xen4.2 S3 regression?

[Ben Guthro <ben@xxxxxxxxxx>]

I forgot to address your dom0 kernel concern -

All of these tests have been run with Konrad Wilk's acpi-s3.vX branches.

The later kernels took more recent branches, while the 3.2.yy kernels
used an older (but still functional) branch (acpi-s3.v7)

For reference:
http://git.kernel.org/?p=linux/kernel/git/konrad/xen.git;a=shortlog;h=refs/heads/devel/acpi-s3.v7




On Tue, Sep 4, 2012 at 8:27 AM, Ben Guthro <ben@xxxxxxxxxx> wrote:
> I've put the console log of this test run here:
> https://citrix.sharefile.com/d/sdc383e252fb41c5a
>
> (again, so as not to clog everyone's inbox)
>
> I have not yet gone through the log in its entirety yet, but thought I
> would first send it to you to see if you had something in particular
> you were looking for.
>
> The file name is console-S3-MSI.txt
>
>
> On Mon, Sep 3, 2012 at 5:31 AM, Jan Beulich <JBeulich@xxxxxxxx> wrote:
>>>>> On 16.08.12 at 13:56, Ben Guthro <ben@xxxxxxxxxx> wrote:
>>> Please let me know if there are anything else you'd like me to experiment
>>> with.
>>
>> Attached a first take at a debugging patch.
>>
>> While putting this together I realized that the situation gets
>> complicated by the fact that plain Linux 3.2.23 doesn't even
>> have support for post-S3 MSI restoration, so much would
>> depend on how exactly this is implemented in the kernel
>> you're running (i.e. whether you have a _complete_ backport
>> in place). I suppose you must be having some support for this
>> patched in, otherwise I wouldn't understand why things work
>> without IOMMU/interrupt remapping.
>>
>> Jan
>>

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