As an additional comment, this happens on both an externally powered Freecom 500 Gb external USB drive that is identified in /var/log/messages as SAMSUNG HD501LJ which is formatted to EXT-3, and a USB-powered WD My Passport 140 GB drive that is identified as WD 1600BEA External 1.04 in /var/log/messages which is formatted to NTFS. The most recent disconnection that I have observed was when I was playing mp3s using mpd with the Freecom 500 Gb drive. The relevant portion of /var/log/messages concerning the disconnection is reproduced below. Scanning the drive with gparted reveals that there are no problems with it. Please let me know if there is anything that I can do to help identify this bug.
Sep 23 18:27:18 tosh kernel: [22266.936060] usb 1-5: new high speed USB device using ehci_hcd and address 2 Sep 23 18:27:18 tosh kernel: [22267.068965] usb 1-5: configuration #1 chosen from 1 choice Sep 23 18:27:19 tosh kernel: [22267.872396] Initializing USB Mass Storage driver... Sep 23 18:27:19 tosh kernel: [22267.872526] scsi4 : SCSI emulation for USB Mass Storage devices Sep 23 18:27:19 tosh kernel: [22267.872701] usbcore: registered new interface driver usb-storage Sep 23 18:27:19 tosh kernel: [22267.872705] USB Mass Storage support registered. Sep 23 18:27:24 tosh kernel: [22272.873482] scsi 4:0:0:0: Direct-Access SAMSUNG HD501LJ PQ: 0 ANSI: 2 CCS Sep 23 18:27:24 tosh kernel: [22272.875871] sd 4:0:0:0: Attached scsi generic sg2 type 0 Sep 23 18:27:24 tosh kernel: [22272.877019] sd 4:0:0:0: [sdb] 976773168 512-byte logical blocks: (500 GB/465 GiB) Sep 23 18:27:24 tosh kernel: [22272.877516] sd 4:0:0:0: [sdb] Write Protect is off Sep 23 18:27:24 tosh kernel: [22272.878897] sdb: sdb1 Sep 23 18:27:24 tosh kernel: [22272.906582] sd 4:0:0:0: [sdb] Attached SCSI disk Sep 23 18:27:27 tosh kernel: [22275.421597] kjournald starting. Commit interval 5 seconds Sep 23 18:27:27 tosh kernel: [22275.422649] EXT3 FS on sdb1, internal journal Sep 23 18:27:27 tosh kernel: [22275.422659] EXT3-fs: mounted filesystem with ordered data mode. Sep 23 18:34:25 tosh kernel: [22694.112071] usb 1-5: reset high speed USB device using ehci_hcd and address 2 Sep 23 18:34:36 tosh kernel: [22704.356066] usb 1-5: reset high speed USB device using ehci_hcd and address 2 Sep 23 18:34:36 tosh kernel: [22705.049836] usb 1-5: USB disconnect, address 2 Sep 23 18:34:36 tosh kernel: [22705.049915] sd 4:0:0:0: Device offlined - not ready after error recovery Sep 23 18:34:36 tosh kernel: [22705.049931] sd 4:0:0:0: [sdb] Unhandled error code Sep 23 18:34:36 tosh kernel: [22705.049937] sd 4:0:0:0: [sdb] Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK Sep 23 18:34:36 tosh kernel: [22705.049946] sd 4:0:0:0: [sdb] CDB: Read(10): 28 00 1d 27 b8 df 00 00 f0 00 Sep 23 18:34:36 tosh kernel: [22705.050118] sd 4:0:0:0: [sdb] Unhandled error code Sep 23 18:34:36 tosh kernel: [22705.050123] sd 4:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK Sep 23 18:34:36 tosh kernel: [22705.050131] sd 4:0:0:0: [sdb] CDB: Read(10): 28 00 1d 27 b9 cf 00 00 f0 00 Sep 23 18:34:37 tosh kernel: [22705.300104] usb 1-5: new high speed USB device using ehci_hcd and address 3 Sep 23 18:34:37 tosh kernel: [22705.433169] usb 1-5: configuration #1 chosen from 1 choice Sep 23 18:34:37 tosh kernel: [22705.438028] scsi5 : SCSI emulation for USB Mass Storage devices Sep 23 18:34:42 tosh kernel: [22710.467974] scsi 5:0:0:0: Direct-Access SAMSUNG HD501LJ PQ: 0 ANSI: 2 CCS Sep 23 18:34:42 tosh kernel: [22710.472716] sd 5:0:0:0: Attached scsi generic sg2 type 0 Sep 23 18:34:42 tosh kernel: [22710.474292] sd 5:0:0:0: [sdb] 976773168 512-byte logical blocks: (500 GB/465 GiB) Sep 23 18:34:42 tosh kernel: [22710.474850] sd 5:0:0:0: [sdb] Write Protect is off Sep 23 18:34:42 tosh kernel: [22710.477040] sdb: sdb1 Sep 23 18:34:42 tosh kernel: [22710.502839] sd 5:0:0:0: [sdb] Attached SCSI disk Sep 23 18:34:43 tosh kernel: [22711.430539] kjournald starting. Commit interval 5 seconds Sep 23 18:34:43 tosh kernel: [22711.431310] EXT3 FS on sdb1, internal journal Sep 23 18:34:43 tosh kernel: [22711.431314] EXT3-fs: recovery complete. Sep 23 18:34:43 tosh kernel: [22711.431868] EXT3-fs: mounted filesystem with ordered data mode. -- external USB hard drive disconnects https://bugs.launchpad.net/bugs/349767 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
