linux-kernel - RE: [PATCH V2] usb: dwc3: gadget: trb

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Message-ID: <02E7334B1630744CBDC55DA8586225837F8DE348@ORSMSX102.amr.corp.intel.com>
Date:   Fri, 19 Jul 2019 21:04:46 +0000
From:   "Yang, Fei" <fei.yang@...el.com>
To:     Felipe Balbi <felipe.balbi@...ux.intel.com>,
        "john.stultz@...aro.org" <john.stultz@...aro.org>,
        "andrzej.p@...labora.com" <andrzej.p@...labora.com>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
Subject: RE: [PATCH V2] usb: dwc3: gadget: trb_dequeue is not updated
 properly

> I need tracepoints to see what's going on, please collect tracepoints.

See attached. Search for "length 16384/16384" to the USB request using sg list. And the transfer stalls at a request with "length 512/512".

-Fei

Download attachment "trace-regdump.tar" of type "application/x-tar" (136457 bytes)