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Hi, |
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I have an external USB hard drive that is giving me troubles about half |
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of the time. Symptoms are the following: |
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- Writing a large file very often stalls for a few seconds and is |
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overall slow (sometimes VERY slow, that is half an hour/gb) |
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- Trying to start a vmware image on the external drive automatically |
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*unmounts* the drive without notice. /var/log/messages in this case |
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shows me the following errors: |
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kernel: usb 1-4: device descriptor read/64, error -110 |
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Some other time the image starts but the guest OS finds lots of troubles |
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and I/O errors on the virtual disk. |
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- Read/write operations result in thousands of the following lines: |
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|
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Jan 17 23:55:31 voynich usb-storage: *** thread sleeping. |
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Jan 17 23:55:31 voynich usb-storage: queuecommand called |
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Jan 17 23:55:31 voynich usb-storage: *** thread awakened. |
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Jan 17 23:55:31 voynich usb-storage: Command READ_10 (10 bytes) |
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Jan 17 23:55:31 voynich usb-storage: 28 00 06 b0 cc ef 00 00 40 00 |
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Jan 17 23:55:31 voynich usb-storage: Bulk Command S 0x43425355 T 0x240d |
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L 32768 F 128 Trg 0 LUN 0 CL 10 |
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Jan 17 23:55:31 voynich usb-storage: usb_stor_bulk_transfer_buf: xfer 31 |
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bytes |
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Jan 17 23:55:31 voynich usb-storage: Status code 0; transferred 31/31 |
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Jan 17 23:55:31 voynich usb-storage: -- transfer complete |
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Jan 17 23:55:31 voynich usb-storage: Bulk command transfer result=0 |
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Jan 17 23:55:31 voynich usb-storage: usb_stor_bulk_transfer_sglist: xfer |
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32768 bytes, 3 entries |
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Jan 17 23:55:31 voynich usb-storage: Status code 0; transferred 32768/32768 |
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Jan 17 23:55:31 voynich usb-storage: -- transfer complete |
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Jan 17 23:55:31 voynich usb-storage: Bulk data transfer result 0x0 |
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Jan 17 23:55:31 voynich usb-storage: Attempting to get CSW... |
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Jan 17 23:55:31 voynich usb-storage: usb_stor_bulk_transfer_buf: xfer 13 |
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bytes |
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Jan 17 23:55:31 voynich usb-storage: Status code 0; transferred 13/13 |
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Jan 17 23:55:31 voynich usb-storage: -- transfer complete |
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Jan 17 23:55:31 voynich usb-storage: Bulk status result = 0 |
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Jan 17 23:55:31 voynich usb-storage: Bulk Status S 0x53425355 T 0x240d R |
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0 Stat 0x0 |
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Jan 17 23:55:31 voynich usb-storage: scsi cmd done, result=0x0 |
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Jan 17 23:55:31 voynich usb-storage: *** thread sleeping. |
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|
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The drive seems to work good on Ubuntu and Windows XP, and has also |
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*sometimes* worked well here. |
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|
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Any hint? |
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|
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Thanks, |
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|
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m. |
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-- |
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