On 01/22/2014 08:36 PM, Peter Zijlstra wrote:
> On Wed, Jan 22, 2014 at 04:27:45PM +0800, Michael wang wrote:
>> # CONFIG_PREEMPT_NONE is not set
>> CONFIG_PREEMPT_VOLUNTARY=y
>> # CONFIG_PREEMPT is not set
>
> Could you try the patch here:
>
> lkml
7;m not sure whether this will invoke
schedule on some arch, just because that name...), so we can't do break
if CONFIG_PREEMPT disabled, because that will cause kernel preemption
while not allowed.
May be that's the reason why we need to consider CONFIG_PREEMPT in
spin_needbreak().
Re
