current->sched_class->yield_task is NULL, any hint?

[Paul Gortmaker]

On Wed, Apr 9, 2014 at 5:39 PM, Lin Ming <minggr at gmail.com> wrote:
> On Wed, Apr 9, 2014 at 1:08 PM, Peter Zijlstra <peterz at infradead.org> wrote:

[...]

>>>
>>> Look at that, its calling yield() from a non-preemptible context as
>>> well.
>>>
>>> That code is full of fail.
>>
>> *phew* none of that br_igmp_* muck lives in any kernel tree near me so I
>> can stop worrying :-)
>
> It's our internal code.

In the future, please don't simply call it 3.4-rt when there are a bunch of
vendor/project/SDK patches also applied, as that can be very misleading
to the people you are asking for help from.  If it is a hybrid franken-kernel
then please at least indicate that right at the very beginning.

Paul.
--

>
>>
>> In any case, it wrongly passes a GFP_WAIT along to netlink_broadcast.
>
> I'll fix it.
> Thanks very much.
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