I will later tonight. For now, I'm using 3.18.x (for another reason), which doesn't have this commit. My Linus-latest tree has a "fix" that imposed a hard limit of 32767, which worked for me then. On January 5, 2015 12:07:56 PM PST, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: >On Mon, 5 Jan 2015, Christoph Hellwig wrote: > >> On Tue, Dec 30, 2014 at 08:36:34AM -0800, Kenneth R. Crudup wrote: >> > OP here. FWIW, this is what I get when running that command on the >SCSI >> > generic device that corresponds to the USB-3 (non-UAS) disk[1] that >had the >> > issue: >> >> So it looks like this one actually provides sane values, but we don't >> we never even look at EVPD pages for usb devices due to the wrong >SCSI >> level? > >According to James Bottomley, it doesn't matter much what the EVPD >pages say. The limitation is imposed by the USB _bridge_, whereas the >EVPD data indicates what the _drive_ is capable of. So we can't rely >on that data anyway. (Although if the EVPD data indicates a limit >smaller than the bridge can handle, then we'd need to pay attention to >it.) > >The patch I posted sets a general limit of 32 MB for USB drives that >don't have a quirk flag for a smaller limit. > >Kenneth, have you tried that patch? Does it fix your problem? > >Alan Stern -- Sent from my 2014 Galaxy Note 10.1 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
