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: [email protected]
Reporter: [email protected]
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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