Re: [usb-storage] Re: 3.16 commit 89fb4cd errors on drives without SYNC CACHE

Christoph Hellwig
2014-11-21T10:17:39Z

> 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.