On Thu, 19 Aug 2010 07:38:15 am Stefan Richter wrote: > Chapter 6 is right about mutex_trylock, but chapter 10 wasn't. > This error was introduced during semaphore-to-mutex conversion of the > Unreliable guide. :-) > > If user context which performs mutex_lock() or mutex_trylock() is > preempted by interrupt context which performs mutex_trylock() on the > same mutex instance, a deadlock occurs. This is because these functions > do not disable local IRQs when they operate on mutex->wait_lock. Acked-by: Rusty Russell <rusty@xxxxxxxxxxxxxxx> I'm assuming Andrew Morton or Randy Dunlap will pick this up... Thanks! Rusty. -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
