[LITMUS^RT] How to handle the blocked task

[Björn Brandenburg]

> On 02 Oct 2016, at 18:44, shijunjie92 <shijunjie92 at gmail.com> wrote:
>  
> I have noticed that, in the pfp_schedule(), only if the prev task is !block, it can be requeued. 
> So what happen if the prev_task is blocked? which queue it blongs to?
>  

None. It suspends, so the scheduler doesn’t keep track of it any longer. A blocked task is most likely on some wait queue, but not necessarily so (see SIGSTOP). But that is not the scheduler’s concern. 

- Björn