On Sun, Apr 20, 2014 at 8:45 AM, Hans Petter Selasky <h...@selasky.org>wrote:

> On 04/20/14 12:54, Wes Morgan wrote:
>> I've got an ADATA 128gb USB3 flash drive (
>> http://www.newegg.com/Product/Product.aspx?Item=N82E16820211819) that is
>> giving me LBA errors. It appears that the drive is being mis-identified
>> and
>> reporting the wrong number of sectors. Camcontrol says the last block
>> is 246960127, which I believe to be correct because any attempt to write
>> to
>> a block after that fails. However, the kernel thinks that the device
>> has 247484416 sectors and pretty much everything fails to use the device
>> properly because partition tables and filesystems like to store things at
>> the end of devices. This is the second one of these I've had and both have
>> the same error. My laptop is fairly old and USB2 only, but I've got some
>> newer machines with USB3 ports and they have the same problem. Attaching
>> the drive to a Linux machine reports the correct number of blocks.
>> All my FreeBSD machines are running 10-stable.
>> Camcontrol output:
>> [morganw@mercury:~$]: camcontrol readcap da0
>> Last Block: 246960127, Block Length: 512 bytes
> Does the device have a bad disk label ?
> gpart show da0
> vs
> diskinfo da0
> --HPS

Turns out this device reports the wrong capacity with RC16 and needs a cam
quirk to disable it. I'll submit a PR.
freebsd-usb@freebsd.org mailing list
To unsubscribe, send any mail to "freebsd-usb-unsubscr...@freebsd.org"

Reply via email to