On Mon, Oct 08, 2007 at 11:06:33AM -0700, Greg KH wrote:
> From: Mark Lord <[email protected]>
>
> commit 4047727e5ae33f9b8d2b7766d1994ea6e5ec2991 from upstream
>
> We need to disable all CPUs other than the boot CPU (usually 0) before
> attempting to power-off modern SMP machines. This fixes the
> hang-on-poweroff issue on my MythTV SMP box, and also on Thomas Gleixner's
> new toybox.
Paul Mackerras has reported crashes when rebooting some older ppc64
systems due to this patch.
See http://ozlabs.org/pipermail/linuxppc-dev/2007-October/043969.html.
-Olof
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