Re: [PATCH] [5/6] scheduler: Protect important kernel threads against normalize_rt

Ingo Molnar
2007-10-08T11:51:54Z

* Andi Kleen <ak@suse.de> wrote:

> Not only the migration thread, but also softlockup and stop machine
> need to be protected against normalize_rt(). Instead of checking for
> them all I added a new process flag for this.

hm, i dont really like this. The migration thread is an absolute
exception because it's needed for a correct scheduler. SysRq-N is like
SysRq-U or SysRq-B - last-minute resort in case something Goes Foul.
Results are not guaranteed.

Ingo