On Fri, Apr 25, 2014 at 04:28:48PM -0400, Steven Rostedt wrote: > I've been discussing an issue on IRC with deadlock checking and found > something wrong with it. Mainly, if any of the locks have a timeout, > then even if the chain loops, there is no real deadlock. If one of the > locks in the chain times out, then things will move forward again. POSIX (opengroup): http://pubs.opengroup.org/onlinepubs/009695399/functions/pthread_mutex_timedlock.html Explicitly states that pthread_mutex_timedlock() should participate in the PI chain, it also states that its perfectly valid for this function to return -EDEADLK. Therefore, there's nothing wrong. If this behaviour breaks userspace, its already broken for not actually expecting the right thing. -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
