From the log it's easy to see why the transfer took so long. There were 6 occurrences of this sort of thing:
Nov 30 13:29:10 nb09 kernel: usb-storage: queuecommand called Nov 30 13:29:10 nb09 kernel: usb-storage: *** thread awakened. Nov 30 13:29:11 nb09 kernel: usb-storage: Command READ_10 (10 bytes) Nov 30 13:29:11 nb09 kernel: usb-storage: 28 00 00 00 4f d1 00 00 34 00 Nov 30 13:29:11 nb09 kernel: usb-storage: Bulk Command S 0x43425355 T 0xda L 106496 F 128 Trg 0 LUN 0 CL 12 Nov 30 13:29:11 nb09 kernel: usb-storage: usb_stor_bulk_transfer_buf: xfer 31 bytes Nov 30 13:29:11 nb09 kernel: usb-storage: Status code 0; transferred 31/31 Nov 30 13:29:11 nb09 kernel: usb-storage: -- transfer complete Nov 30 13:29:11 nb09 kernel: usb-storage: Bulk command transfer result=0 Nov 30 13:29:11 nb09 kernel: usb-storage: usb_stor_bulk_transfer_sglist: xfer 106496 bytes, 26 entries Nov 30 13:29:11 nb09 kernel: usb-storage: Status code 0; transferred 106496/106496 Nov 30 13:29:11 nb09 kernel: usb-storage: -- transfer complete Nov 30 13:29:11 nb09 kernel: usb-storage: Bulk data transfer result 0x0 Nov 30 13:29:11 nb09 kernel: usb-storage: Attempting to get CSW... Nov 30 13:29:11 nb09 kernel: usb-storage: usb_stor_bulk_transfer_buf: xfer 13 bytes Nov 30 13:29:11 nb09 kernel: usb-storage: Status code 0; transferred 0/13 Nov 30 13:29:11 nb09 kernel: usb-storage: -- short transfer Nov 30 13:29:11 nb09 kernel: usb-storage: Bulk status result = 1
The CSW transfer returned 0 bytes, not 13. Another Genesyslogic bug?
That one sounds somewhat familiar. Like "hardware terminated write with ZLP" ... I wonder if maybe just re-reading the CSW might show better results. "Device bug" does seem a plausible explanation given the facts we've seen; ZLPs aren't supposed to be used in such cases.
- Dave
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