[Bug 76241] New: USB Device Not Recognised

* [Bug 76241] New: USB Device Not Recognised
@ 2014-05-15  2:46 bugzilla-daemon
  2014-05-15  2:48 ` [Bug 76241] " bugzilla-daemon
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: bugzilla-daemon @ 2014-05-15  2:46 UTC (permalink / raw)
  To: linux-scsi

https://bugzilla.kernel.org/show_bug.cgi?id=76241

            Bug ID: 76241
           Summary: USB Device Not Recognised
           Product: IO/Storage
           Version: 2.5
    Kernel Version: linux-2.6.37
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: SCSI
          Assignee: linux-scsi@vger.kernel.org
          Reporter: zhouqikevin61@gmail.com
        Regression: No

Created attachment 136131
  --> https://bugzilla.kernel.org/attachment.cgi?id=136131&action=edit
Errorhappen

USB Device connected by USB Hub cannot be Recognised
it seems like the Inquiry command failed and the USB device reset a lot
Something wrong with the DMA transmit？ need help ~~~

Notice：The odds of this happening are quite low，Most of the time the usb device
work well。 

[   31.642735] scsi_probe_and_add_lun: scsi_alloc_sdev end 
[   31.659215] scsi_execute: req->cmd=18, 0, 0, 0, 36, 0
[   31.674883] blk_execute_rq:wait_for_completion start
[   52.771720] cppi41_channel_abort: DMA busy,status=2
[   52.786768] cppi41_get_teardown_info: dma_num == cppi41_num_dma_block
[   52.806614] usb_check_teardown:not a teardown descriptor
[   52.822985] usb_tx_ch_teardown 1047: Invalid PD(9f069000)popped from TearDn
completionqueue
[   52.848875] usb_stor_invoke_transport: command was aborted
[   52.981830] usb 1-1: reset high speed USB device using musb-hdrc and address
2
[   53.142833] scsi command aborted result=0x50000
[   63.152043] cppi41_channel_abort: DMA busy,status=2
[   63.167097] cppi41_get_teardown_info: dma_num == cppi41_num_dma_block
[   63.186946] usb_check_teardown:not a teardown descriptor
[   63.203315] usb_tx_ch_teardown 1047: Invalid PD(9f069000)popped from TearDn
completionqueue
[   63.229272] usb_stor_invoke_transport: command was aborted
[   63.361852] usb 1-1: reset high speed USB device using musb-hdrc and address
2
[   63.522612] scsi command aborted result=0x50000
[   79.531713] cppi41_channel_abort: DMA busy,status=2
[   79.546765] cppi41_get_teardown_info: dma_num == cppi41_num_dma_block
[   79.566620] usb_check_teardown:not a teardown descriptor
[   79.582988] usb_tx_ch_teardown 1047: Invalid PD(9f069040)popped from TearDn
completionqueue
[   79.608877] usb_stor_invoke_transport: command was aborted
[   79.741853] usb 1-1: reset high speed USB device using musb-hdrc and address
2
[   79.902536] scsi command aborted result=0x50000
[   80.031854] usb 1-1: reset high speed USB device using musb-hdrc and address
2
[   90.191974] cppi41_channel_abort: DMA busy,status=2
[   90.207022] cppi41_get_teardown_info: dma_num == cppi41_num_dma_block
[   90.226871] usb_check_teardown:not a teardown descriptor
[   90.243243] usb_tx_ch_teardown 1047: Invalid PD(9f069040)popped from TearDn
completionqueue
[   90.269170] usb_stor_invoke_transport: command was aborted
[   90.401706] usb 1-1: reset high speed USB device using musb-hdrc and address
2
[   90.562603] scsi command aborted result=0x50000
[   90.578826] scsi 0:0:0:0: Device offlined - not ready after error recovery
[   90.600292] blk_execute_rq:wait_for_completion end
[   90.615120] scsi_probe_lun: scsi_execute_req failed with code 0x50000
[   90.634999] scsi_probe_lun return -EIO 
[   90.646823] scsi_probe_and_add_lun: scsi_probe_lun failed

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