Matheus Izvekov wrote: >> Indeed removing the jumper of sdb made it be recognised as SATA2. But >> sdc, what the problem is really about, is neither SATA2, not has any >> jumper whatsoever. but both the manufacturer and libata claim it >> supports NCQ. >> > > Anything i could do to help debug this? or perhaps it makes more sense > to just blacklist NCQ for this particular drive? Timeouts on modern SATA disks usually indicate hardware problem. * unstable power supply (this is quite common) * faulty cable or poorly seated connectors * faulty drive or controller (seems rare) Please apply common hardware debugging method - isolate problem by changing configuration piece-by-piece and finding out to which component the error actually belongs to. -- 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