Alan Cox wrote: >> However, SATA or not, there simply isn't a way to abort commands in ATA. >> Issuing random command while other commands are in progress simply is >> state machine violation and there will be many interesting results >> including complete system lockup (ATA controller dying while holding the >> PCI bus). The only reliable way to abort in-flight commands are by >> issuing hardreset. However, ATA reset protocol is not designed for >> quick recovery. The machine is gonna hit the ground hard way before the >> reset protocol is complete. > > Actually you cau can issue idle immediate on older ATA devices. I am not > clear if that was stuck back into the current accelerometer friendly > drives or not. Would need to check with IBLenovo Was that something intentional or was it a happy accident? There can be bus ownership problem on PATA and on SATA this is much more state logic on both sides of the cable and I think things like that would be more difficult to work accidentally. 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
