Hi Nilesh, Thanks for reporting this. I think this is a known regression, try reverting these two commits: 3804fad45411 "USBNET: ax88179_178a: enable tso if usb host supports sg dma" c8f44f989019 "xhci 1.0: Limit arbitrarily-aligned scatter gather." Mathias will be sending a pull request to Greg shortly to revert those two commits. Sarah Sharp On Thu, Mar 06, 2014 at 08:57:55PM +0530, Nilesh Govindrajan wrote: > I'm unable to access USB 3 Pen drive / HDD on 3.13.5. The same works > on 3.13.4 without any problems. > > The problem happens irrespective of whether the device is plugged in a > USB 3.0 port or a 2.0 port. > > Motherboard: GA-B85M-D3H > CPU: i5-4670 > > Messages in dmesg - > > [ 124.985666] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called > with disabled ep ffff88022138b000 > [ 124.985667] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called > with disabled ep ffff88022138b040 > [ 135.091668] usb 2-6: reset SuperSpeed USB device number 3 using xhci_hcd > [ 135.102898] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called > with disabled ep ffff88022138b000 > [ 135.102900] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called > with disabled ep ffff88022138b040 > [ 151.211415] usb 2-6: reset SuperSpeed USB device number 3 using xhci_hcd > -- > To unsubscribe from this list: send the line "unsubscribe linux-usb" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
