Hi Bob, 2010/10/9 Bob Liu <lliubbo@xxxxxxxxx>: > > result: > ==============bob@adam-desktop:~/usb$ ./newtest.sh > mount: none already mounted or /proc/bus/usb busy > mount: according to mtab, none is already mounted on /proc/bus/usb > unknown speed /proc/bus/usb/002/026 > /proc/bus/usb/002/026 test 14, 3.849498 secs > unknown speed /proc/bus/usb/002/026 > /proc/bus/usb/002/026 test 1, 0.127008 secs > unknown speed /proc/bus/usb/002/026 > /proc/bus/usb/002/026 test 2, 0.126008 secs > unknown speed /proc/bus/usb/002/026 > /proc/bus/usb/002/026 test 3, 0.127255 secs > unknown speed /proc/bus/usb/002/026 > /proc/bus/usb/002/026 test 4, 0.131634 secs > unknown speed /proc/bus/usb/002/026 > "hang at here................ > ============== For blackfin, the patch may enable double fifo mode since hw endpoint fifo size will be 1024 but the actual max packet size of g_zero endpoint is 512. Could you enable musb debug switch before doing test #4 and dump the debug info out when the hang is triggered? -- Lei Ming -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
