Hi guys, I've been investigating a mount-failure of USB hard drives for a few days now and have reached a dead end - I hope I'm adressing the right mailing list here, if not, please direct me towards the right list. I have two identical external hard-drive enclosures from the same vendor (CnMemory) using the Genesys Logic GL830 chip which I bought about one year apart. One works just fine, the other fails to mount on all three machines I have tested this on (One IBM T40, one Lenovo T500, one Apple iMac). All machines are running the 2.6.32 kernel-series which seems to be part of the problem because both enclosures work on previous kernels. I haven't yet had a chance to try a -33 kernel due to the time I have available. (I'm on Ubuntu, running the development series of 10.04 but I have tested vanilla kernels too, including the latest stable variant 2.6.32-7) Oh, and the error is completely independent of the hard drives used - I tested several in both enclosures. About the Genesys Logic chips: The working one has the identification "MN1AA02G02 741H23901", the non-working one "MN3BB02G12 834SJ93901". I have also contacted the vendor of these hard drives but I don't expect any constructive feedback on the issue from them. The guys at the ubuntuforums couldn't help either. However I did find one bugreport on launchpad which looks related: https://bugs.launchpad.net/ubuntu/lucid/+source/linux-fsl-imx51/+bug/499881 Do you guys have any idea where to look at solving the issue? You'll find some log-entries below. thanks, Klaus from syslog: Jan 27 17:27:47 klaus-imac kernel: [ 116.220416] usb-storage: device scan complete Jan 27 17:27:47 klaus-imac kernel: [ 116.222506] scsi 6:0:0:0: Direct-Access TOSHIBA MK5055GSX 0002 PQ: 0 ANSI: 0 Jan 27 17:27:47 klaus-imac kernel: [ 116.222823] sd 6:0:0:0: Attached scsi generic sg3 type 0 Jan 27 17:27:47 klaus-imac kernel: [ 116.225149] sd 6:0:0:0: [sdb] 976773168 512-byte logical blocks: (500 GB/465 GiB) Jan 27 17:27:47 klaus-imac kernel: [ 116.225998] sd 6:0:0:0: [sdb] Write Protect is off Jan 27 17:27:47 klaus-imac kernel: [ 116.226000] sd 6:0:0:0: [sdb] Mode Sense: 03 00 00 00 Jan 27 17:27:47 klaus-imac kernel: [ 116.226002] sd 6:0:0:0: [sdb] Assuming drive cache: write through Jan 27 17:27:47 klaus-imac kernel: [ 116.227509] sd 6:0:0:0: [sdb] Assuming drive cache: write through Jan 27 17:27:47 klaus-imac kernel: [ 116.227511] sdb: sdb1 Jan 27 17:27:47 klaus-imac kernel: [ 116.263544] sd 6:0:0:0: [sdb] Assuming drive cache: write through Jan 27 17:27:47 klaus-imac kernel: [ 116.263549] sd 6:0:0:0: [sdb] Attached SCSI disk Jan 27 17:27:55 klaus-imac kernel: [ 124.120514] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:28:03 klaus-imac kernel: [ 132.120379] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 from kern.log: Jan 27 17:30:07 klaus-imac kernel: [ 256.130303] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:30:11 klaus-imac kernel: [ 260.419828] applesmc: wait status failed: 5 != 0 Jan 27 17:30:38 klaus-imac kernel: [ 287.121304] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:31:03 klaus-imac kernel: [ 312.501640] kjournald starting. Commit interval 5 seconds Jan 27 17:31:03 klaus-imac kernel: [ 312.501644] EXT3-fs warning: checktime reached, running e2fsck is recommended Jan 27 17:31:03 klaus-imac kernel: [ 312.510681] EXT3 FS on dm-0, internal journal Jan 27 17:31:03 klaus-imac kernel: [ 312.510685] EXT3-fs: mounted filesystem with writeback data mode. Jan 27 17:31:09 klaus-imac kernel: [ 318.090472] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:31:09 klaus-imac kernel: [ 318.202065] sd 6:0:0:0: [sdb] Unhandled error code Jan 27 17:31:09 klaus-imac kernel: [ 318.202074] sd 6:0:0:0: [sdb] Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK Jan 27 17:31:09 klaus-imac kernel: [ 318.202083] sd 6:0:0:0: [sdb] CDB: Read(10): 28 00 00 00 00 00 00 00 20 00 Jan 27 17:31:09 klaus-imac kernel: [ 318.202104] end_request: I/O error, dev sdb, sector 0 Jan 27 17:31:09 klaus-imac kernel: [ 318.202115] Buffer I/O error on device sdb, logical block 0 Jan 27 17:31:09 klaus-imac kernel: [ 318.202126] Buffer I/O error on device sdb, logical block 1 Jan 27 17:31:09 klaus-imac kernel: [ 318.202133] Buffer I/O error on device sdb, logical block 2 Jan 27 17:31:09 klaus-imac kernel: [ 318.202140] Buffer I/O error on device sdb, logical block 3 Jan 27 17:31:40 klaus-imac kernel: [ 349.092930] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:32:11 klaus-imac kernel: [ 380.090465] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:32:42 klaus-imac kernel: [ 411.096963] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:33:13 klaus-imac kernel: [ 442.090455] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:33:44 klaus-imac kernel: [ 473.130475] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:34:15 klaus-imac kernel: [ 504.122969] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:34:15 klaus-imac kernel: [ 504.234568] sd 6:0:0:0: [sdb] Unhandled error code Jan 27 17:34:15 klaus-imac kernel: [ 504.234577] sd 6:0:0:0: [sdb] Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK Jan 27 17:34:15 klaus-imac kernel: [ 504.234586] sd 6:0:0:0: [sdb] CDB: Read(10): 28 00 00 00 00 3f 00 00 f0 00 Jan 27 17:34:15 klaus-imac kernel: [ 504.234608] end_request: I/O error, dev sdb, sector 63 Jan 27 17:34:15 klaus-imac kernel: [ 504.234620] Buffer I/O error on device sdb1, logical block 0 Jan 27 17:34:15 klaus-imac kernel: [ 504.234630] Buffer I/O error on device sdb1, logical block 1 Jan 27 17:34:15 klaus-imac kernel: [ 504.234638] Buffer I/O error on device sdb1, logical block 2 Jan 27 17:34:15 klaus-imac kernel: [ 504.234644] Buffer I/O error on device sdb1, logical block 3 Jan 27 17:34:15 klaus-imac kernel: [ 504.234658] Buffer I/O error on device sdb1, logical block 4 Jan 27 17:34:15 klaus-imac kernel: [ 504.234664] Buffer I/O error on device sdb1, logical block 5 Jan 27 17:34:15 klaus-imac kernel: [ 504.234671] Buffer I/O error on device sdb1, logical block 6 Jan 27 17:34:15 klaus-imac kernel: [ 504.234677] Buffer I/O error on device sdb1, logical block 7 Jan 27 17:34:15 klaus-imac kernel: [ 504.234684] Buffer I/O error on device sdb1, logical block 8 Jan 27 17:34:15 klaus-imac kernel: [ 504.234690] Buffer I/O error on device sdb1, logical block 9 Jan 27 17:34:46 klaus-imac kernel: [ 535.090446] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:35:17 klaus-imac kernel: [ 566.120432] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:35:48 klaus-imac kernel: [ 597.122905] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:36:19 klaus-imac kernel: [ 628.120448] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:36:50 klaus-imac kernel: [ 659.090435] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:37:21 klaus-imac kernel: [ 690.100430] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:37:21 klaus-imac kernel: [ 690.204190] sd 6:0:0:0: [sdb] Unhandled error code Jan 27 17:37:21 klaus-imac kernel: [ 690.204200] sd 6:0:0:0: [sdb] Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK Jan 27 17:37:21 klaus-imac kernel: [ 690.204204] sd 6:0:0:0: [sdb] CDB: Read(10): 28 00 00 00 01 2f 00 00 10 00 Jan 27 17:37:21 klaus-imac kernel: [ 690.204213] end_request: I/O error, dev sdb, sector 303 Jan 27 17:37:21 klaus-imac kernel: [ 690.204218] __ratelimit: 110 callbacks suppressed Jan 27 17:37:21 klaus-imac kernel: [ 690.204221] Buffer I/O error on device sdb1, logical block 120 Jan 27 17:37:21 klaus-imac kernel: [ 690.204225] Buffer I/O error on device sdb1, logical block 121 Jan 27 17:37:21 klaus-imac kernel: [ 690.204228] Buffer I/O error on device sdb1, logical block 122 Jan 27 17:37:21 klaus-imac kernel: [ 690.204230] Buffer I/O error on device sdb1, logical block 123 Jan 27 17:37:21 klaus-imac kernel: [ 690.204234] Buffer I/O error on device sdb1, logical block 124 Jan 27 17:37:21 klaus-imac kernel: [ 690.204236] Buffer I/O error on device sdb1, logical block 125 Jan 27 17:37:21 klaus-imac kernel: [ 690.204239] Buffer I/O error on device sdb1, logical block 126 Jan 27 17:37:21 klaus-imac kernel: [ 690.204242] Buffer I/O error on device sdb1, logical block 127 Jan 27 17:37:52 klaus-imac kernel: [ 721.122941] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:38:23 klaus-imac kernel: [ 752.092932] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:38:54 klaus-imac kernel: [ 783.092942] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:39:25 klaus-imac kernel: [ 814.093405] usb 2-1.4: reset high speed USB device using ehci_hcd and address 6 Jan 27 17:39:28 klaus-imac kernel: [ 817.584599] sd 6:0:0:0: timing out command, waited 180s Jan 27 17:39:28 klaus-imac kernel: [ 817.584621] sd 6:0:0:0: [sdb] Unhandled error code Jan 27 17:39:28 klaus-imac kernel: [ 817.584626] sd 6:0:0:0: [sdb] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 27 17:39:28 klaus-imac kernel: [ 817.584636] sd 6:0:0:0: [sdb] CDB: Read(10): 28 00 00 00 00 3f 00 00 08 00 Jan 27 17:39:28 klaus-imac kernel: [ 817.584657] end_request: I/O error, dev sdb, sector 63 Jan 27 17:39:28 klaus-imac kernel: [ 817.584667] Buffer I/O error on device sdb1, logical block 0 Jan 27 17:39:28 klaus-imac kernel: [ 817.584678] Buffer I/O error on device sdb1, logical block 1 Jan 27 17:39:28 klaus-imac kernel: [ 817.584685] Buffer I/O error on device sdb1, logical block 2 Jan 27 17:39:28 klaus-imac kernel: [ 817.584691] Buffer I/O error on device sdb1, logical block 3 -- Klaus Doblmann B.A. Web: www.doblmann.de - wo der gute Film ein Zuhause findet Blog: http://www.straightrazorguy.net Associate Member of the Free Software Foundation (#7570) OpenPGP-Key: http://www.doblmann.de/pgp_key.asc Stammzertifikat von CaCert hier herunterladen: http://www.cacert.org/index.php?id=3 Bitte vermeiden Sie es, mir Dokumente im Word- oder Powerpoint-Format zu senden! 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