It seems like I have the same or similar problem. Trying to attach an (usb3-capable) Iomega Prestige 1.5TB 2.5" to a builtin USB3.0 port of a Clevo P150HM laptop, dmesg gives the following lines:
[96648.546177] usb 4-2: new SuperSpeed USB device number 5 using xhci_hcd [96648.588330] xhci_hcd 0000:02:00.0: WARN: short transfer on control ep [96648.594073] xhci_hcd 0000:02:00.0: WARN: short transfer on control ep [96648.599789] xhci_hcd 0000:02:00.0: WARN: short transfer on control ep [96648.605660] xhci_hcd 0000:02:00.0: WARN: short transfer on control ep [96648.635377] xhci_hcd 0000:02:00.0: WARN: short transfer on control ep [96648.642770] xhci_hcd 0000:02:00.0: WARN: short transfer on control ep [96648.692463] xhci_hcd 0000:02:00.0: WARN: short transfer on control ep [96648.693001] scsi9 : uas [96648.701677] scsi 9:0:0:0: Direct-Access OEM Ext Hard Disk 0000 PQ: 0 ANSI: 5 [96648.811795] sd 9:0:0:0: Attached scsi generic sg2 type 0 [96648.924151] sd 9:0:0:0: [sdb] 366284646 4096-byte logical blocks: (1.50 TB/1.36 TiB) [96649.070884] sd 9:0:0:0: [sdb] Write Protect is off [96649.070896] sd 9:0:0:0: [sdb] Mode Sense: 10 00 00 00 [96649.116534] sd 9:0:0:0: [sdb] Cache data unavailable [96649.116546] sd 9:0:0:0: [sdb] Assuming drive cache: write through [96649.214110] xhci_hcd 0000:02:00.0: WARN: babble error on endpoint [96649.214292] xhci_hcd 0000:02:00.0: WARN Set TR Deq Ptr cmd invalid because of stream ID configuration [96649.214393] xhci_hcd 0000:02:00.0: ERROR Transfer event for disabled endpoint or incorrect stream ring Trying again with the other USB3.0-port, dmesg says: [96680.097613] sd 9:0:0:0: uas_eh_abort_handler tag 0 [96680.097629] sd 9:0:0:0: uas_eh_device_reset_handler tag 0 [96680.097635] sd 9:0:0:0: uas_eh_target_reset_handler tag 0 [96680.097641] sd 9:0:0:0: uas_eh_bus_reset_handler tag 0 [96680.217221] usb 4-2: reset SuperSpeed USB device number 5 using xhci_hcd [96680.297136] xhci_hcd 0000:02:00.0: WARN: short transfer on control ep [96680.297214] xhci_hcd 0000:02:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff8801d7267e00 [96680.297221] xhci_hcd 0000:02:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff8801d7267e40 [96680.297228] xhci_hcd 0000:02:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff8801d7267e80 [96680.297234] xhci_hcd 0000:02:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff8801d7267ec0 [96680.531621] usb 4-2: URB BAD STATUS -108 [96680.531665] sd 9:0:0:0: Device offlined - not ready after error recovery [96680.531738] sd 9:0:0:0: rejecting I/O to offline device [96680.531755] sd 9:0:0:0: rejecting I/O to offline device [96680.531763] sd 9:0:0:0: [sdb] READ CAPACITY(16) failed [96680.531768] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [96680.531776] sd 9:0:0:0: [sdb] Sense not available. [96680.531783] sd 9:0:0:0: rejecting I/O to offline device [96680.531792] sd 9:0:0:0: rejecting I/O to offline device [96680.531800] sd 9:0:0:0: rejecting I/O to offline device [96680.531807] sd 9:0:0:0: [sdb] READ CAPACITY failed [96680.531811] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [96680.531817] sd 9:0:0:0: [sdb] Sense not available. [96680.531826] sd 9:0:0:0: rejecting I/O to offline device [96680.531835] sd 9:0:0:0: rejecting I/O to offline device [96680.531846] sd 9:0:0:0: rejecting I/O to offline device [96680.531856] sd 9:0:0:0: rejecting I/O to offline device [96680.531864] sd 9:0:0:0: [sdb] Asking for cache data failed [96680.531868] sd 9:0:0:0: [sdb] Assuming drive cache: write through [96680.531876] sdb: detected capacity change from 1500301910016 to 0 [96680.532033] sd 9:0:0:0: [sdb] Attached SCSI disk [96799.696334] usb 4-2: USB disconnect, device number 5 [96799.764544] scsi: killing requests for dead queue [96799.836367] xhci_hcd 0000:02:00.0: WARN Can't disable streams for endpoint 0x82 [96799.836372] , streams are already disabled! [96799.836380] xhci_hcd 0000:02:00.0: WARN xhci_free_streams() called with non-streams endpoint [96800.020015] hub 4-0:1.0: unable to enumerate USB device on port 2 In both cases, "lsusb" show a line for the attached drive, but "fdisk -l" gives no new device. System does not freeze. The Iomega Prestige drive works fine when attached to a USB2.0 port. For comparison, here is the dmesg output when attaching an (also usb3-capable) Seagate Goflex 1.5TB drive to the USB3.0-port (which works fine) : [78964.396789] usb 4-2: new SuperSpeed USB device number 5 using xhci_hcd [78964.415544] xhci_hcd 0000:02:00.0: WARN: short transfer on control ep [78964.416129] xhci_hcd 0000:02:00.0: WARN: short transfer on control ep [78964.416912] xhci_hcd 0000:02:00.0: WARN: short transfer on control ep [78964.417538] xhci_hcd 0000:02:00.0: WARN: short transfer on control ep [78964.419191] scsi9 : usb-storage 4-2:1.0 [78965.417833] scsi 9:0:0:0: Direct-Access Seagate FreeAgent GoFlex 210 PQ: 0 ANSI: 0 [78965.417968] scsi: killing requests for dead queue [78965.479510] scsi: killing requests for dead queue [78965.483024] scsi: killing requests for dead queue [78965.483457] scsi: killing requests for dead queue [78965.486501] scsi: killing requests for dead queue [78965.491537] scsi: killing requests for dead queue [78965.491761] scsi: killing requests for dead queue [78965.503547] scsi: killing requests for dead queue [78965.504209] sd 9:0:0:0: Attached scsi generic sg2 type 0 [78965.504241] sd 9:0:0:0: [sdb] 2930277167 512-byte logical blocks: (1.50 TB/1.36 TiB) [78965.504376] xhci_hcd 0000:02:00.0: WARN: Stalled endpoint [78965.505178] sd 9:0:0:0: [sdb] Write Protect is off [78965.505190] sd 9:0:0:0: [sdb] Mode Sense: 0f 00 00 00 [78965.505329] xhci_hcd 0000:02:00.0: WARN: Stalled endpoint [78965.506047] sd 9:0:0:0: [sdb] No Caching mode page present [78965.506055] sd 9:0:0:0: [sdb] Assuming drive cache: write through [78965.507556] xhci_hcd 0000:02:00.0: WARN: Stalled endpoint [78965.508346] xhci_hcd 0000:02:00.0: WARN: Stalled endpoint [78965.508971] sd 9:0:0:0: [sdb] No Caching mode page present [78965.508984] sd 9:0:0:0: [sdb] Assuming drive cache: write through [78965.553337] sdb: sdb1 sdb2 [78965.554114] xhci_hcd 0000:02:00.0: WARN: Stalled endpoint [78965.554921] xhci_hcd 0000:02:00.0: WARN: Stalled endpoint [78965.555621] sd 9:0:0:0: [sdb] No Caching mode page present [78965.555631] sd 9:0:0:0: [sdb] Assuming drive cache: write through [78965.555638] sd 9:0:0:0: [sdb] Attached SCSI disk [78965.604685] xhci_hcd 0000:02:00.0: WARN: Stalled endpoint [78965.605598] xhci_hcd 0000:02:00.0: WARN: Stalled endpoint [78965.786524] xhci_hcd 0000:02:00.0: WARN: Stalled endpoint [78966.413635] EXT4-fs (sdb1): warning: maximal mount count reached, running e2fsck is recommended [78966.417767] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null) Using Ubuntu 11.10 / kernel 3.0.0-14 I'd be happy to run more tests if that helps. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/825722 Title: External USB3 harddisk do not connect To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/825722/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs