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