Hello, Mark Lord wrote: > Mmmm.. that's interesting. I suppose a big difference between -rt and > vanilla > is in latency between interrupt signal and the interrupt handler > actually running. > > I think in -rt it is slightly *longer*, since the handler is run by a > scheduled > thread instead of directly. > > Anyway, for me, the intriguing point of data here, is that there could > be some > tight soft timing issue that sometimes can make NCQ fail. And our > response to date > with this is to blacklist the drives.. which may or may not be correct now. I think it's interrupt timing problem too. I just received my order of problematic drives. I'll try to reproduce it and find out. At any rate, I think we'll probably have to drop spurious NCQ completion check. Thanks. -- tejun - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
