From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,T_DKIMWL_WL_HIGH, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A3F5FC43218 for ; Sat, 27 Apr 2019 07:01:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 73EF82077B for ; Sat, 27 Apr 2019 07:01:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1556348500; bh=PnvIG/rN0ZE0sYOaBvkEZGMPQB74UD8RbQ7BiNEQ+qc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=DQudcxzjHH6Aav68+KUZ+LcrpkWmillsgNLxHZawcYikjP/hQR1QcGRpUplrpPTvN aV6BH6j7azt5+47OgxZ3kA8UAg8CI2IgQzOl1DuAlkb2xmgpmfqoyn3/JkmnrrOI8C yEuoaa12/ZdU+lEiZhDFPI3CvwR76YQwVVHwtU6Q= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726181AbfD0HBj (ORCPT ); Sat, 27 Apr 2019 03:01:39 -0400 Received: from mail.kernel.org ([198.145.29.99]:49704 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726001AbfD0HBj (ORCPT ); Sat, 27 Apr 2019 03:01:39 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6635E2077B; Sat, 27 Apr 2019 07:01:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1556348499; bh=PnvIG/rN0ZE0sYOaBvkEZGMPQB74UD8RbQ7BiNEQ+qc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=tD6OLZFCdvfm9oJUPZXgL1qlRrkEJ5TZmqkTJqWVTyIN6EngJqKegYvzewCUR19wr ltnr1pFE2oBGqc3kO1bYocEDYWUPiVToXbkq3cVIBY3bYFS14uuge9STro5xUgULoO Pesg8HTGQsqMJ9LoQ6F8LvS5ZhjX09HjhlT1VtUg= Date: Sat, 27 Apr 2019 09:01:36 +0200 From: Greg KH To: Christo Gouws Cc: linux-usb@vger.kernel.org Subject: Re: Line6 podstudio UX1 - driver crash on usb_hcd_map_urb_for_dma Message-ID: <20190427070136.GE28250@kroah.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.11.4 (2019-03-13) Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On Fri, Apr 26, 2019 at 11:50:14AM +0200, Christo Gouws wrote: > Hi, > > I have a Line6 Pod Studio UX1 card, but each time I plug it in, I get > the following crash in dmesg on Ubuntu 18.04 > Linux my-pc 4.20.8-042008-generic #201902121544 SMP Tue Feb 12 > 20:46:50 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux > > I've also tested this with a Fedora 30 v5.0.6-300 kernel, but still > seems to happen (using liveCD). > > > The output on the card seems to work, but none of the inputs work. > > I've also now tested with latest kernel available on Arch Linux > Linux my-pc 5.0.9-arch1-1-ARCH #1 SMP PREEMPT Sat Apr 20 15:00:46 UTC > 2019 x86_64 GNU/Linux > > After some further testing, I found that this issue cropped in beween > v4.8.17 and v4.9-rc1. > > v4.8.17 - Works fine. > v4.9-rc1+ - Produces crash Any chance you can use 'git bisect' to find the exact commit that caused the failure? thanks, greg k-h