kern/78474 for 5.4? (kernel stack swapout problem again)

[David Xu]

Sam Lawrance wrote:

>Will this problem:
>
>Swapped out procs not brought in immediately after child exits
>http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/78474
>
>be dealt with for the release of 5.4?
>
>Perhaps I'm the only FreeBSD user with swapped out processes ;-)
>
>-Sam
>
>
>  
>

I have noticed that current spinlock implementation no longer means
that CPU must be in critical region (critical_enter is called),  even 
previous
hack TDP_WAKEPROC0 is no longer correct, :(, I think it is the time
to disable swapout.

David Xu