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

[Ben Guthro <ben@xxxxxxxxxx>]

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 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

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel