[PATCH 2/2] drm/scheduler: stop setting rq to NULL

[Christian König]

Am 09.08.2018 um 19:39 schrieb Andrey Grodzovsky:
> [SNIP]
>> SIGKILL isn't processed as long as any thread of the application is 
>> still inside the kernel. That's why we have wait_event_killable().
>
> Can you tell me where is this happening ? What i see is in the code is 
> that
> do_group_exit calls zap_other_threads which just adds SIGKILL to 
> signal sets of other threads in group and sends a wake up.
> Then do_exit will close all FDs for current thread and so .flush will 
> be called, when last thread drops it's refcount for the FD .release 
> will be called.

Good question, I have not the slightest idea.

Killed processes certainly doesn't die until all threads return from 
kernel space, but I'm not 100% sure if that happens before or after the 
flush.

Christian.

>
> Andrey