Re: [Xen-devel] Powerdown problem on XEN | ACPI S5

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Wed, Aug 14, 2013 at 04:34:21PM -0400, Ben Guthro wrote:
> This hang looks exactly like this one that I posted about in June:
> http://www.gossamer-threads.com/lists/xen/devel/284943?do=post_view_threaded#284943
> 
> This ended up being an interaction with the i915 driver in the kernel, and
> pvops use of PAT.
> 
> If you revert the following linux commit:
> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c79c49826270b8b0061b2fca840fc3f013c8a78a

And probably also need to revert
8eaffa67b43e99ae581622c5133e20b0f48bcef1
?
> 
> and then apply:
> https://lkml.org/lkml/2012/2/10/229
> 
> You may get good results.
> It helped me with a similar problem, at least.
> 
> Ben
> 
> 
> 
> On Wed, Aug 14, 2013 at 4:24 PM, Atom2 <ariel.atom2@xxxxxxxxxx> wrote:
> 
> > Am 14.08.13 22:18, schrieb Andrew Cooper:
> > [...]
> >
> >>
> >> Ok thanks.
> >>
> >> Do you mind confirming whether S5 works with "iommu=off" on the Xen
> >> command line?
> >>
> >> ~Andrew
> >>
> >>  Yes, that works: The system powers off after issuing
> >         shutdown -h now
> > from the dom0.
> >
> >
> > ______________________________**_________________
> > Xen-devel mailing list
> > Xen-devel@xxxxxxxxxxxxx
> > http://lists.xen.org/xen-devel
> >

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