>>>>> I try the same operation to produce the issue, and it >> also fails. >>>> Please attach the output of dmesg with CONFIG_USB_DEBUG and >>>> XHCI_DEBUG. >>> >>> With these two debug config on, the dmesg buffer even can not log >>> one reset operation. >> >> You can increase your buffer size by setting CONFIG_LOG_BUF_SHIFT=21. >> >>> What information do we want from these two debug config? >> >> Everything. I'd like to understand exactly what's happening at the >> xHCI driver level. I probably only need to see three reset cycles. >> Zip up the log file or use pastebin if you think the log file is too >> big. >> > > I will append the dmesg log later. >
Please reference the following link First attach : http://pastebin.com/nN3SQuy0 Last few reset http://pastebin.com/L2GxaS5M Thanks, Soar -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html