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=-0.8 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED 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 B13C9C46470 for ; Wed, 15 May 2019 11:22:36 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 81FDE20818 for ; Wed, 15 May 2019 11:22:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="IU4cXrD1" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 81FDE20818 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 54D60AF7; Wed, 15 May 2019 11:22:36 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id EA1B5ACD for ; Wed, 15 May 2019 11:22:34 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-wr1-f65.google.com (mail-wr1-f65.google.com [209.85.221.65]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 6D41B83A for ; Wed, 15 May 2019 11:22:34 +0000 (UTC) Received: by mail-wr1-f65.google.com with SMTP id f8so2261834wrt.1 for ; Wed, 15 May 2019 04:22:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:subject:to:cc:references:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=ckBX2l5f1VZG5CnTLL79iVDtrDK0NkXfJfWMzfaal8I=; b=IU4cXrD1OXfGBlV80LdeWPSYSO9PVeq/P6eP0zLDvxjn0aLZk5g2Cu08z6TSC/3SrE ArcZpUc0L4Kf7Y7u9B3edXERb5IGf7TnI/lC6zIbk64VwEDdY8aEX2Kb3jCELBQKJRem IuK+vSbkyYYJrN/vwGxs0lbZ7vt2xZmoGtKugCv6l/hwddBm/vROpQFTZA5mo9QYFW3m iXm9Wo/pzY0UvQC2AmAiVqCvfHJAzi6UxoqybtJ1lJSh1PK2xYe9+sEuBdKvPoyHx5yd QX1lU4BvHVHfVhzQrnrMyCid1TFrQz2hD3nF8Fv2EjeIR4tmTWAq4ohlmJO8zW47iv5x xHLQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:subject:to:cc:references:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=ckBX2l5f1VZG5CnTLL79iVDtrDK0NkXfJfWMzfaal8I=; b=HuCMEOGouFHDg1K82w+rPjpKG+HeoKjcB6EV25wtBqifQh9XFDJsP+Yi6Y9vXBfN5C IKjXl4LxDfcwvM7ttUPCvaOwf7l94USoo+ypnI/9rSe+hT1OttCi7kxcheNTBNSZVIIy 4MPjUi79Eur7XZ6LCIeCYaYOZx8kU1Qpbek9NeAE1SjQdxzeJOEnZwO4RDgoDi+YJ2Hz LZucRM+2SGfunxFdoyQV6ulBXYmAek3eAvJyPZUXqUZXigY3ImCLeEhvMlBQpMKxTh7i YGvitPtMYoKnlnanDjVPNRvESFL9bJflF0DWJ6IaOORJEpD2wGJhIZLMyaZDL+sxgwFL AKMA== X-Gm-Message-State: APjAAAWdeSrdUrYZibC5/OS4d/hOAthvpyXp+2hCz9cMFdhaEe11MmOa xTytjQGebw0rkYTepJPEd6o= X-Google-Smtp-Source: APXvYqwM2FHWOKfhtPK9q1xtu8lj4VCZCTvys9W5/RT1tHaabqHbX8MRqWWWgveccEQEMBQG+BK8OA== X-Received: by 2002:a5d:52c6:: with SMTP id r6mr26305678wrv.131.1557919353044; Wed, 15 May 2019 04:22:33 -0700 (PDT) Received: from [192.168.99.70] (mail.unidataz.cz. [193.165.148.130]) by smtp.googlemail.com with ESMTPSA id y130sm2196797wmc.44.2019.05.15.04.22.31 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 15 May 2019 04:22:32 -0700 (PDT) From: "StarostaCZ@gmail.com" X-Google-Original-From: "StarostaCZ@gmail.com" Subject: Re: Linux crash when using FTDI FT232R USB to serial converter on AMD boards. To: Oliver Neukum , Joerg Roedel , Johan Hovold References: <04503197-a0a9-8b35-6c65-c10f296aab57@gmail.com> <20190429094847.GI26546@localhost> <20190503153716.GE11605@8bytes.org> <8748125e-f360-ff0e-ea15-699bce9e7747@gmail.com> <4e7f0267-eba8-81c3-4036-25924ea9df98@gmail.com> <1557911856.2950.10.camel@suse.com> <3e7ec2f2-ac47-a031-96ba-fa2b9f21ed2e@gmail.com> <1557913582.2950.15.camel@suse.com> Message-ID: Date: Wed, 15 May 2019 13:21:00 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <1557913582.2950.15.camel@suse.com> Content-Language: cs Cc: iommu@lists.linux-foundation.org, linux-usb@vger.kernel.org, Mathias Nyman X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============5896034572950411621==" Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org --===============5896034572950411621== Content-Type: text/html; charset=utf-8 Content-Language: cs Content-Transfer-Encoding: 7bit Dne 15.5.2019 v 11:46 Oliver Neukum napsal(a):
Most helpful. First, try to replicate this with the iommu disabled.
I am trying this with "iommu disabled" in bios, but system crash too: https://paste.ee/p/wUgHl

Secondly, make a proper bugreport mentioning the affected kernel version (5.1)
How can I do this?

Thirdly, if possible replicate this with the vanilla kernel from kernel.org
I am afraid, that is not possible. My skills is not too good - is there some procedure to how do this?
I made test with mainline kernel 5.1.2 from https://kernel.ubuntu.com/~kernel-ppa/mainline/
but computer crash on boot (kernel panic: unable to mount root fs...).

starosta
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