On Fri, 2 Sep 2016, Felipe Balbi wrote: > > Hi, > > Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> writes: > > [...] > > > No, that would be too late. The barrier needs to go between the write > > to common->thead_wakeup_needed and the call to wake_up_process(). > > alright, I tested this but it doesn't work. It still hangs :-( Okay, I was wrong. But see my recent reply to Paul; maybe the smp_wmb() in wakeup_thread() needs to be smp_mb(). Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
