Re: while_each_thread() under rcu_read_lock() is broken?

From: Chris Friesen
Date: Thu Jun 24 2010 - 15:01:12 EST

On 06/24/2010 12:07 PM, Paul E. McKenney wrote:

> 3. The thread-group leader might do pthread_exit(), removing itself
> from the thread group -- and might do so while the hapless reader
> is referencing that thread.
> But isn't this prohibited? Or is it really legal to do a
> pthread_create() to create a new thread and then have the
> parent thread call pthread_exit()? Not something I would
> consider trying in my own code! Well, I might, just to
> be perverse, but... ;-)

I believe SUS allows the main thread to explicitly call pthread_exit(),
leaving the other threads to run. If the main() routine just returns
then it implicitly calls exit().


Chris Friesen
Software Developer
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at