Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752692AbdDDHSH convert rfc822-to-8bit (ORCPT ); Tue, 4 Apr 2017 03:18:07 -0400 Received: from smtprelay.synopsys.com ([198.182.60.111]:42912 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751022AbdDDHSG (ORCPT ); Tue, 4 Apr 2017 03:18:06 -0400 From: Minas Harutyunyan To: John Stultz , Minas Harutyunyan CC: John Youn , lkml , YongQin Liu , "linux-usb@vger.kernel.org" Subject: Re: dwc2_hc_chhltd_intr_dma - ChHltd set errors? Thread-Topic: dwc2_hc_chhltd_intr_dma - ChHltd set errors? Thread-Index: AQHSk4+c0FmhkyX5hEq/7QuV9W5RZw== Date: Tue, 4 Apr 2017 07:18:01 +0000 Message-ID: <410670D7E743164D87FA6160E7907A56FD9F6F17@am04wembxb.internal.synopsys.com> References: <2B3535C5ECE8B5419E3ECBE300772909021B4A47FF@US01WEMBX2.internal.synopsys.com> <410670D7E743164D87FA6160E7907A56FD9F691E@am04wembxb.internal.synopsys.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.116.70.205] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1528 Lines: 49 Hi, On 4/4/2017 7:04 AM, John Stultz wrote: > On Mon, Apr 3, 2017 at 5:54 AM, Minas Harutyunyan > wrote: >> On 4/3/2017 9:23 AM, John Youn wrote: >>> On 03/31/2017 04:04 PM, John Stultz wrote: >>>> On Thu, Mar 2, 2017 at 12:00 PM, John Stultz wrote: >>>>> Hey John, >>>>> We've noticed that when using usb ethernet adapters on HiKey, we >>>>> occasionally see errors like: >>>>> >>>>> dwc2 f72c0000.usb: dwc2_hc_chhltd_intr_dma: Channel 0 - ChHltd set, >>>>> but reason is unknown >>>>> dwc2 f72c0000.usb: hcint 0x00000002, intsts 0x06200029 >>>>> >>>>> dwc2 f72c0000.usb: dwc2_hc_chhltd_intr_dma: Channel 11 - ChHltd set, >>>>> but reason is unknown >>>>> dwc2 f72c0000.usb: hcint 0x00000002, intsts 0x04200029 >>>>> >>>>> Sometimes followed up by a usb error in the driver, something like: >>>>> asix 1-1.2:1.0 eth0: asix_rx_fixup() Bad Header Length 0x36000807, offset 68 >>>>> >>>>> Curious if you've seen any reports like this? >> >> The core version is less than 2.71a, am I right? > > So it looks like its reporting 0x4f54300a for hsotg->regs + GSNPSID > which looks like DWC2_CORE_REV_3_00a > >> Please send full debug log to do more investigation. > > Full dmesg, or is there special debugging you want me to enable? Full dmesg around issue. > >> Also send us regdump after connecting ethernet adapter. > > Sorry, can you clarify how to generate this? cat regdump. To locate dwc2 regdump file: cd /; find -name regdump > > thanks > -john > Thanks, Minas