Crash after 'reboot' due to 9be4fd2c7723a

[Fabio Estevam]

On Fri, May 20, 2016 at 9:30 PM, Rafael J. Wysocki <rafael at kernel.org> wrote:

> What exactly do you mean by reverting here?  It surely cannot be
> reverted by itself and there are many things that depend on it.

Yes, it cannot be reverted cleanly on 4.6.

If I do 'git checkout 9be4fd2c7723a30' and then 'git revert
9be4fd2c7723a30' then the reboot command works.

>>> Is this an SMP board, actually?
>>
>> Yes, this is a single core CortexA7.
>
> Hmm.  Single core means non-SMP rather?

CONFIG_SMP can be set or not in the kernel config. With CONFIG_SMP=n
the issue does not happen.