Darren Hart <dvh...@linux.intel.com> wrote on 2013/04/18 22:54:30: > > "or it will exit later" .... I don't follow you there, it sounds like > you are saying if we try to wake the exiting process, that process will > be delayed and take longer to exit.... I don't think that is what you > meant. Can you elaborate please? >
I want to describe this scene: 1, We wake one waiter of other process that is not exiting. 2, Before it returns from do_futex, another thread of the process encounters an exception and leads to process exiting. 3, The waiter returns from do_futex, and handle exit signal first, that it will not return to userspace any more. So, to my way of thinking, to choose a suitable waiter is difficult. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
