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=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,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 6F9F5C43219 for ; Fri, 3 May 2019 15:37:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4CF312070B for ; Fri, 3 May 2019 15:37:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727513AbfECPhS (ORCPT ); Fri, 3 May 2019 11:37:18 -0400 Received: from 8bytes.org ([81.169.241.247]:39314 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726476AbfECPhS (ORCPT ); Fri, 3 May 2019 11:37:18 -0400 Received: by theia.8bytes.org (Postfix, from userid 1000) id 9260E580; Fri, 3 May 2019 17:37:17 +0200 (CEST) Date: Fri, 3 May 2019 17:37:16 +0200 From: Joerg Roedel To: Johan Hovold Cc: "StarostaCZ@gmail.com" , linux-usb@vger.kernel.org, Mathias Nyman , iommu@lists.linux-foundation.org Subject: Re: Linux crash when using FTDI FT232R USB to serial converter on AMD boards. Message-ID: <20190503153716.GE11605@8bytes.org> References: <04503197-a0a9-8b35-6c65-c10f296aab57@gmail.com> <20190429094847.GI26546@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190429094847.GI26546@localhost> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On Mon, Apr 29, 2019 at 11:48:47AM +0200, Johan Hovold wrote: > So this is a debian 4.18 kernel seemingly crashing due to a xhci or > iommu issue. > > Can you reproduce this on a mainline kernel? > > If so, please post the corresponding logs to the lists and CC the xhci > and iommu maintainers (added to CC). Your kernel is probably missing this upstream fix: 4e50ce03976f iommu/amd: fix sg->dma_address for sg->offset bigger than PAGE_SIZE Regards, Joerg