Messages in this thread | | | Date | Fri, 22 Jun 2012 13:57:04 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH] reboot: disable nonboot CPUs |
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On Fri, 15 Jun 2012 01:48:34 +0400 Cyrill Gorcunov <gorcunov@openvz.org> wrote:
> On Thu, Jun 14, 2012 at 02:41:48PM -0700, Kees Cook wrote: > > On Thu, Jun 14, 2012 at 2:25 PM, Per Forlin <per.forlin@stericsson.com> wrote: > > > Disable the nonboot CPUs to safely migrate tasks and interrupts > > > to the boot CPU. This will prevent the nonboot CPUs to > > > interfer or block the boot CPU from being able to reboot > > > the system successfully. > > > > Reviewed-by: Kees Cook <keescook@chromium.org> > > > > This seems reasonable to me, though I haven't looked too deeply at the > > reboot path. > > Looks reasonable to me as well, but better to add some more CC,
That worked well :(
> since syscore_shutdown seems to call for generic irqs to shutdown > when cpu get turned off already, not sure if this have any side > effect and/or I've missed something (Thomas CC'ed).
Let's use the scientific method: stick it in the tree and see what happens. If it breaks, we fix or revert it.
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