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Re: [Xen-devel] S3 is broken again in xen-unstable

On Fri, Apr 26, 2013 at 07:41:07PM -0400, Ben Guthro wrote:
> >
> > Ok, so master (xen-unstable) works OK regarding ACPI S3. Good.
> >
> > What hypervisor-side patches are still missing from stable-4.2 branch?
> The final one that actually makes it work is
> http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=9aa356bc9f7533c3cb7f02c823f532532876d444
> Jan Beulich had already indicated that this would be picked up in the
> 4.2 release cycle, but it was too late to get it into 4.2.2

Yep, I can see this already in 4.2 branch for 4.2.3.
> Then, also the ns16550 change.
> While strictly not necessary to fix S3 in the normal path, it does fix
> a bug that can lead to S3 not working if you
>    a. have one of these SuperIO controllers on the LPC bus.
>    b. have serial enabled.
> http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=6e96c186d23873597896051b043cfeb119c4a7d5

Jan: I think this ns16550 patch should be backported to 4.2 branch aswell.. 


-- Pasi

> On the linux side of things, The following are necessary:
> One of the acpi-s3.vX branches. I use v9, but v10 is also available. I
> don't think one has an advantage over the other.
> acpi-s3.v10:
> http://git.kernel.org/cgit/linux/kernel/git/konrad/xen.git/commit/?h=devel/acpi-s3.v10&id=c268cd657314354f910b773a17a9de0299e1cc21
> http://git.kernel.org/cgit/linux/kernel/git/konrad/xen.git/commit/?h=devel/acpi-s3.v10&id=864848221b056aaf25416999c29cb0e14d3c3197
> http://git.kernel.org/cgit/linux/kernel/git/konrad/xen.git/commit/?h=devel/acpi-s3.v10&id=aa7eb7bbb3f2a39435a07c082f99893386ae83ec
> stable/for-linus-3.10:
> http://git.kernel.org/cgit/linux/kernel/git/konrad/xen.git/commit/?h=stable/for-linus-3.10&id=3fac10145b766a2244422788f62dc35978613fd8
> Ben

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