Re: Question about CLONE_CLEARTID and thread group leader

From: Ingo Molnar (mingo@elte.hu)
Date: Mon Sep 16 2002 - 22:10:16 EST


On Tue, 17 Sep 2002, Jamie Lokier wrote:

> One question has been bothering me for a while: what about the thread
> group leader's stack? These days, isn't it the case that the group
> leader is supposed to be equivalent to the other threads? If so, how
> does it exit and release its own stack -- or do we understand that the
> group leader, as a one-off exception, has to block signals before
> exiting?

good question. We might need a new mechanism (new syscall) for a thread to
set its own ->user_tid after it has started up. I'll code it up. The
fastest thread-startup method is still to also have this mechanism
provided by clone() as well - but oviously at exec() time we cannot know
about such issues.

        Ingo

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Mon Sep 23 2002 - 22:00:18 EST