This is still happening on kernel 3.1.1: Jun 29 09:51:40 karryall kernel: [ 270.798057] usb 3-1: new SuperSpeed USB device using xhci_hcd and address 2 Jun 29 09:51:40 karryall kernel: [ 270.835905] xhci_hcd 0000:04:00.0: WARN: short transfer on control ep Jun 29 09:51:40 karryall kernel: [ 270.841901] xhci_hcd 0000:04:00.0: WARN: short transfer on control ep Jun 29 09:51:40 karryall kernel: [ 270.847527] xhci_hcd 0000:04:00.0: WARN: short transfer on control ep Jun 29 09:51:40 karryall kernel: [ 270.853401] xhci_hcd 0000:04:00.0: WARN: short transfer on control ep Jun 29 09:51:40 karryall kernel: [ 270.853534] usb 3-1: New USB device found, idVendor=059b, idProduct=0070 Jun 29 09:51:40 karryall kernel: [ 270.853539] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Jun 29 09:51:40 karryall kernel: [ 270.853544] usb 3-1: Product: eGo USB Jun 29 09:51:40 karryall kernel: [ 270.853547] usb 3-1: Manufacturer: Iomega Jun 29 09:51:40 karryall kernel: [ 270.853549] usb 3-1: SerialNumber: 0800000000009812 Jun 29 09:51:40 karryall kernel: [ 270.889028] xhci_hcd 0000:04:00.0: WARN: short transfer on control ep Jun 29 09:51:40 karryall kernel: [ 270.895403] xhci_hcd 0000:04:00.0: WARN: short transfer on control ep Jun 29 09:51:40 karryall mtp-probe: checking bus 3, device 2: "/sys/devices/pci0000:00/0000:00:0a.0/0000:02:00.0/0000:03:01.0/0000:04:00.0/usb3/3-1" Jun 29 09:51:40 karryall mtp-probe: bus: 3, device: 2 was not an MTP device Jun 29 09:51:40 karryall kernel: [ 271.033532] xhci_hcd 0000:04:00.0: WARN no SS endpoint bMaxBurst Jun 29 09:51:40 karryall kernel: [ 271.080278] xhci_hcd 0000:04:00.0: WARN: short transfer on control ep Jun 29 09:51:40 karryall kernel: [ 271.082431] scsi10 : uas Jun 29 09:51:40 karryall kernel: [ 271.083625] usbcore: registered new interface driver uas Jun 29 09:51:40 karryall kernel: [ 271.090208] scsi 10:0:0:0: Direct-Access OEM Ext Hard Disk 0000 PQ: 0 ANSI: 5 Jun 29 09:51:40 karryall kernel: [ 271.099802] Initializing USB Mass Storage driver... Jun 29 09:51:40 karryall kernel: [ 271.100444] usbcore: registered new interface driver usb-storage Jun 29 09:51:40 karryall kernel: [ 271.100449] USB Mass Storage support registered. Jun 29 09:51:41 karryall kernel: [ 271.199930] sd 10:0:0:0: Attached scsi generic sg3 type 0 Jun 29 09:51:41 karryall kernel: [ 271.299047] sd 10:0:0:0: [sdc] 975319088 512-byte logical blocks: (499 GB/465 GiB) Jun 29 09:51:41 karryall kernel: [ 271.447444] sd 10:0:0:0: [sdc] Write Protect is off Jun 29 09:51:41 karryall kernel: [ 271.493157] sd 10:0:0:0: [sdc] Cache data unavailable Jun 29 09:51:41 karryall kernel: [ 271.493161] sd 10:0:0:0: [sdc] Assuming drive cache: write through Jun 29 09:51:41 karryall kernel: [ 271.548736] xhci_hcd 0000:04:00.0: WARN: babble error on endpoint Jun 29 09:51:41 karryall kernel: [ 271.548872] xhci_hcd 0000:04:00.0: WARN Set TR Deq Ptr cmd invalid because of stream ID configuration Jun 29 09:51:41 karryall kernel: [ 271.548920] xhci_hcd 0000:04:00.0: ERROR Transfer event for disabled endpoint or incorrect stream ring Jun 29 09:52:11 karryall kernel: [ 301.792042] sd 10:0:0:0: uas_eh_abort_handler tag 0 Jun 29 09:52:11 karryall kernel: [ 301.792052] sd 10:0:0:0: uas_eh_device_reset_handler tag 0 Jun 29 09:52:11 karryall kernel: [ 301.792057] sd 10:0:0:0: uas_eh_target_reset_handler tag 0 Jun 29 09:52:11 karryall kernel: [ 301.792061] sd 10:0:0:0: uas_eh_bus_reset_handler tag 0 Jun 29 09:52:11 karryall kernel: [ 301.903398] usb 3-1: reset SuperSpeed USB device using xhci_hcd and address 2 Jun 29 09:52:11 karryall kernel: [ 301.979613] xhci_hcd 0000:04:00.0: WARN: short transfer on control ep Jun 29 09:52:11 karryall kernel: [ 301.979745] xhci_hcd 0000:04:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff880113706d00 Jun 29 09:52:11 karryall kernel: [ 301.979751] xhci_hcd 0000:04:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff880113706d40 Jun 29 09:52:11 karryall kernel: [ 301.979756] xhci_hcd 0000:04:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff880113706d80 Jun 29 09:52:11 karryall kernel: [ 301.979760] xhci_hcd 0000:04:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff880113706dc0 Jun 29 09:52:11 karryall kernel: [ 302.094253] xhci_hcd 0000:04:00.0: WARN no SS endpoint bMaxBurst Jun 29 09:52:12 karryall kernel: [ 302.210258] usb 3-1: URB BAD STATUS -108 Jun 29 09:52:12 karryall kernel: [ 302.210276] sd 10:0:0:0: Device offlined - not ready after error recovery Jun 29 09:52:12 karryall kernel: [ 302.210319] sd 10:0:0:0: rejecting I/O to offline device Jun 29 09:52:12 karryall kernel: [ 302.210333] sd 10:0:0:0: rejecting I/O to offline device Jun 29 09:52:12 karryall kernel: [ 302.210339] sd 10:0:0:0: [sdc] READ CAPACITY(16) failed Jun 29 09:52:12 karryall kernel: [ 302.210343] sd 10:0:0:0: [sdc] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK Jun 29 09:52:12 karryall kernel: [ 302.210348] sd 10:0:0:0: [sdc] Sense not available. Jun 29 09:52:12 karryall kernel: [ 302.210354] sd 10:0:0:0: rejecting I/O to offline device Jun 29 09:52:12 karryall kernel: [ 302.210360] sd 10:0:0:0: rejecting I/O to offline device Jun 29 09:52:12 karryall kernel: [ 302.210366] sd 10:0:0:0: rejecting I/O to offline device Jun 29 09:52:12 karryall kernel: [ 302.210371] sd 10:0:0:0: [sdc] READ CAPACITY failed Jun 29 09:52:12 karryall kernel: [ 302.210373] sd 10:0:0:0: [sdc] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK Jun 29 09:52:12 karryall kernel: [ 302.210378] sd 10:0:0:0: [sdc] Sense not available. Jun 29 09:52:12 karryall kernel: [ 302.210383] sd 10:0:0:0: rejecting I/O to offline device Jun 29 09:52:12 karryall kernel: [ 302.210390] sd 10:0:0:0: rejecting I/O to offline device Jun 29 09:52:12 karryall kernel: [ 302.210397] sd 10:0:0:0: rejecting I/O to offline device Jun 29 09:52:12 karryall kernel: [ 302.210404] sd 10:0:0:0: rejecting I/O to offline device Jun 29 09:52:12 karryall kernel: [ 302.210411] sd 10:0:0:0: [sdc] Asking for cache data failed Jun 29 09:52:12 karryall kernel: [ 302.210414] sd 10:0:0:0: [sdc] Assuming drive cache: write through Jun 29 09:52:12 karryall kernel: [ 302.210420] sdc: detected capacity change from 499363373056 to 0 Jun 29 09:52:12 karryall kernel: [ 302.210530] sd 10:0:0:0: [sdc] Attached SCSI disk -- 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