> If we use the trampoline approach, we get:
>
> Original thread:
> - allocate new stack
> - new_tid = clone(...)
> - waitpid(new_tid, WUNTRACED)
> - (update thread tables &c)
> - kill(new_tid, SIGCONT)
> New thread:
> - sched_setscheduler(new_tid, ...)
> - kill (new_tid, SIGSTOP)
Even worse. Since the manager has to know when the
schedparam/scheduler calls fail it the child must communicate this
somehow to the manager. And this is absolutely unnecessary since the
manager could make the calls itself.
-- ---------------. drepper at gnu.org ,-. 1325 Chesapeake Terrace Ulrich Drepper \ ,-------------------' \ Sunnyvale, CA 94089 USA Cygnus Solutions `--' drepper at cygnus.com `------------------------- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/