Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751439AbdCBVLi (ORCPT ); Thu, 2 Mar 2017 16:11:38 -0500 Received: from mail-wr0-f179.google.com ([209.85.128.179]:34129 "EHLO mail-wr0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751276AbdCBVLh (ORCPT ); Thu, 2 Mar 2017 16:11:37 -0500 MIME-Version: 1.0 From: John Stultz Date: Thu, 2 Mar 2017 12:00:08 -0800 Message-ID: Subject: dwc2_hc_chhltd_intr_dma - ChHltd set errors? To: John Youn Cc: lkml , YongQin Liu Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 925 Lines: 25 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? We haven't seen it with a older 4.4 tree we've been using (which had a bit more out of tree changes to it), but it was discovered with the 4.9 branch we have, and I've confirmed its happening with the upstream kernel too, so I need to try to jump back to some older trees to see where it might have first cropped up. thanks -john