On Fri, 21 Nov 2014, Christoph Hellwig wrote: > > usb-storage sets wce_default_on only for devices that are marked with > > the US_FL_WRITE_CACHE quirk flag. Currently only two devices have that > > flag: the Seagate Portable HDD (vendor ID 0x0bc2, product ID 0x2300) > > and the Western Digital My Password HDD (vendor ID 0x1058, product ID > > 0x070a). > > So Jeff has a drive that on its own claims WCE=1 but doesn't support > SYNCHRONIZE_CACHE(10). I'm not sure what to do about it as it sounds > inherently dangerous.
Maybe we should log a one-time warning when this happens and turn off sdkp->WCE. There's not much else we _can_ do about it. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
