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    SubjectRe: [PATCH] x86/ACPI: Make Sony Vaio Z1 series to use "reboot=pci" default
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    On Friday, October 25, 2013 10:43:00 AM Adam Williamson wrote:
    > On Fri, 2013-10-25 at 18:16 +0100, Linus Torvalds wrote:
    > > On Fri, Oct 25, 2013 at 5:47 PM, Adam Williamson <awilliam@redhat.com> wrote:
    > > >
    > > > I don't, but one comment I could add is that reboot _used_ to work okay
    > > > on the Z1. And I _think_ it's worked OK since the April 2011 commit you
    > > > mention (so the introduction of that didn't break it), but I can't
    > > > absolutely swear to it.
    > >
    > > It might be interesting to try, and if it used to work with the acpi
    > > method, use bisection to see when it stopped working..
    >
    > Yeah, I knew that'd be the reply :) I'll try and dig out some old kernel
    > builds from Koji and see if I can at least pinpoint when it last worked,
    > and if it really _was_ after the ACPI method landed.

    This is a shot in the dark, but can you also please check if booting 3.12-rc6
    with acpi_osi="!Windows 2012" on the affected machine makes any difference?

    Rafael



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