too affect this bug here is my log May 7 22:50:49 homeusr-desktop kernel: [ 9067.432515] usb 1-1.1: new high-speed USB device number 4 using ehci-pci May 7 22:50:50 homeusr-desktop kernel: [ 9067.525960] usb 1-1.1: New USB device found, idVendor=14cd, idProduct=6116 May 7 22:50:50 homeusr-desktop kernel: [ 9067.525965] usb 1-1.1: New USB device strings: Mfr=1, Product=3, SerialNumber=2 May 7 22:50:50 homeusr-desktop kernel: [ 9067.525968] usb 1-1.1: Product: USB 2.0 SATA BRIDGE May 7 22:50:50 homeusr-desktop kernel: [ 9067.525970] usb 1-1.1: Manufacturer: Super Top May 7 22:50:50 homeusr-desktop kernel: [ 9067.525972] usb 1-1.1: SerialNumber: M6116018VF16 May 7 22:50:50 homeusr-desktop kernel: [ 9067.526610] scsi7 : usb-storage 1-1.1:1.0 May 7 22:50:50 homeusr-desktop mtp-probe: checking bus 1, device 4: "/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1" May 7 22:50:50 homeusr-desktop mtp-probe: bus: 1, device: 4 was not an MTP device May 7 22:50:51 homeusr-desktop kernel: [ 9068.524551] scsi 7:0:0:0: Direct-Access WDC WD10 JPVT-55A1YT0 PQ: 0 ANSI: 0 May 7 22:50:51 homeusr-desktop kernel: [ 9068.525326] sd 7:0:0:0: Attached scsi generic sg2 type 0 May 7 22:50:51 homeusr-desktop kernel: [ 9068.525991] sd 7:0:0:0: [sdb] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB) May 7 22:50:51 homeusr-desktop kernel: [ 9068.526873] sd 7:0:0:0: [sdb] Write Protect is off May 7 22:50:51 homeusr-desktop kernel: [ 9068.526878] sd 7:0:0:0: [sdb] Mode Sense: 03 00 00 00 May 7 22:50:51 homeusr-desktop kernel: [ 9068.529089] sd 7:0:0:0: [sdb] No Caching mode page present May 7 22:50:51 homeusr-desktop kernel: [ 9068.529094] sd 7:0:0:0: [sdb] Assuming drive cache: write through May 7 22:50:51 homeusr-desktop kernel: [ 9068.531080] sd 7:0:0:0: [sdb] No Caching mode page present May 7 22:50:51 homeusr-desktop kernel: [ 9068.531085] sd 7:0:0:0: [sdb] Assuming drive cache: write through May 7 22:50:51 homeusr-desktop kernel: [ 9068.586118] sdb: sdb1 May 7 22:50:51 homeusr-desktop kernel: [ 9068.589203] sd 7:0:0:0: [sdb] No Caching mode page present May 7 22:50:51 homeusr-desktop kernel: [ 9068.589208] sd 7:0:0:0: [sdb] Assuming drive cache: write through May 7 22:50:51 homeusr-desktop kernel: [ 9068.589212] sd 7:0:0:0: [sdb] Attached SCSI disk May 7 22:50:59 homeusr-desktop kernel: [ 9076.599154] usb 1-1.1: reset high-speed USB device number 4 using ehci-pci May 7 22:50:59 homeusr-desktop udisksd[2115]: Error probing device: Error sending ATA command IDENTIFY DEVICE to /dev/sdb: Unexpected sense data returned:#0120000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................#0120010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................#012 (g-io-error-quark, 0) May 7 22:51:52 homeusr-desktop udevd[13523]: timeout '/sbin/blkid -o udev -p /dev/sdb1' May 7 22:51:53 homeusr-desktop udevd[13523]: timeout: killing '/sbin/blkid -o udev -p /dev/sdb1' [13679] May 7 22:51:55 udevd[13523]: last message repeated 2 times May 7 22:51:55 homeusr-desktop dbus[903]: [system] Failed to activate service 'org.freedesktop.Avahi': timed out May 7 22:51:56 homeusr-desktop udevd[13523]: timeout: killing '/sbin/blkid -o udev -p /dev/sdb1' [13679] May 7 22:52:06 udevd[13523]: last message repeated 10 times May 7 22:52:06 homeusr-desktop udevd[13523]: '/sbin/blkid -o udev -p /dev/sdb1' [13679] terminated by signal 9 (Killed) May 7 22:52:06 homeusr-desktop udevd[13523]: timeout 'udisks-part-id /dev/sdb1' May 7 22:52:06 homeusr-desktop kernel: [ 9143.795256] sd 7:0:0:0: [sdb] Unhandled sense code May 7 22:52:06 homeusr-desktop kernel: [ 9143.795262] sd 7:0:0:0: [sdb] May 7 22:52:06 homeusr-desktop kernel: [ 9143.795264] Result: hostbyte=DID_ERROR driverbyte=DRIVER_SENSE May 7 22:52:06 homeusr-desktop kernel: [ 9143.795266] sd 7:0:0:0: [sdb] May 7 22:52:06 homeusr-desktop kernel: [ 9143.795268] Sense Key : Hardware Error [current] May 7 22:52:06 homeusr-desktop kernel: [ 9143.795272] sd 7:0:0:0: [sdb] May 7 22:52:06 homeusr-desktop kernel: [ 9143.795274] Add. Sense: No additional sense information May 7 22:52:06 homeusr-desktop kernel: [ 9143.795276] sd 7:0:0:0: [sdb] CDB: May 7 22:52:06 homeusr-desktop kernel: [ 9143.795278] Read(10): 28 00 74 70 67 f0 00 00 08 00 May 7 22:52:06 homeusr-desktop kernel: [ 9143.795286] end_request: I/O error, dev sdb, sector 1953523696 May 7 22:52:06 homeusr-desktop kernel: [ 9143.795291] Buffer I/O error on device sdb1, logical block 244190206 May 7 22:52:07 homeusr-desktop udevd[13523]: timeout: killing 'udisks-part-id /dev/sdb1' [13729] May 7 22:52:20 udevd[13523]: last message repeated 13 times May 7 22:52:20 homeusr-desktop dbus[903]: [system] Failed to activate service 'org.freedesktop.Avahi': timed out May 7 22:52:21 homeusr-desktop udevd[13523]: timeout: killing 'udisks-part-id /dev/sdb1' [13729] May 7 22:52:45 udevd[13523]: last message repeated 24 times May 7 22:52:45 homeusr-desktop dbus[903]: [system] Failed to activate service 'org.freedesktop.Avahi': timed out May 7 22:52:46 homeusr-desktop udevd[13523]: timeout: killing 'udisks-part-id /dev/sdb1' [13729] May 7 22:53:10 udevd[13523]: last message repeated 24 times May 7 22:53:10 homeusr-desktop dbus[903]: [system] Failed to activate service 'org.freedesktop.Avahi': timed out May 7 22:53:11 homeusr-desktop udevd[13523]: timeout: killing 'udisks-part-id /dev/sdb1' [13729] May 7 22:53:12 homeusr-desktop udevd[13523]: timeout: killing 'udisks-part-id /dev/sdb1' [13729] May 7 22:53:13 homeusr-desktop kernel: [ 9210.820949] sd 7:0:0:0: [sdb] Unhandled sense code May 7 22:53:13 homeusr-desktop kernel: [ 9210.820955] sd 7:0:0:0: [sdb] May 7 22:53:13 homeusr-desktop udevd[13523]: 'udisks-part-id /dev/sdb1' [13729] terminated by signal 9 (Killed) May 7 22:53:13 homeusr-desktop kernel: [ 9210.820957] Result: hostbyte=DID_ERROR driverbyte=DRIVER_SENSE May 7 22:53:13 homeusr-desktop kernel: [ 9210.820959] sd 7:0:0:0: [sdb] May 7 22:53:13 homeusr-desktop kernel: [ 9210.820961] Sense Key : Hardware Error [current] May 7 22:53:13 homeusr-desktop kernel: [ 9210.820965] sd 7:0:0:0: [sdb] May 7 22:53:13 homeusr-desktop kernel: [ 9210.820967] Add. Sense: No additional sense information May 7 22:53:13 homeusr-desktop kernel: [ 9210.820969] sd 7:0:0:0: [sdb] CDB: May 7 22:53:13 homeusr-desktop kernel: [ 9210.820971] Read(10): 28 00 00 00 00 00 00 00 08 00 May 7 22:53:13 homeusr-desktop kernel: [ 9210.820979] end_request: I/O error, dev sdb, sector 0 May 7 22:53:13 homeusr-desktop kernel: [ 9210.820983] Buffer I/O error on device sdb, logical block 0 but ubuntu 12.10 can use disk normaly