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 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A8FA3C6FA82 for ; Thu, 15 Sep 2022 00:43:11 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.407168.649570 (Exim 4.92) (envelope-from ) id 1oYcxn-0002vv-0p; Thu, 15 Sep 2022 00:42:43 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 407168.649570; Thu, 15 Sep 2022 00:42:42 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1oYcxm-0002vo-Su; Thu, 15 Sep 2022 00:42:42 +0000 Received: by outflank-mailman (input) for mailman id 407168; Thu, 15 Sep 2022 00:42:41 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1oYcxl-0002vf-89 for xen-devel@lists.xenproject.org; Thu, 15 Sep 2022 00:42:41 +0000 Received: from MTA-10-4.privateemail.com (mta-10-4.privateemail.com [198.54.122.149]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 4b4a3b18-348f-11ed-9761-273f2230c3a0; Thu, 15 Sep 2022 02:42:38 +0200 (CEST) Received: from mta-10.privateemail.com (localhost [127.0.0.1]) by mta-10.privateemail.com (Postfix) with ESMTP id CB2FD18000A1 for ; Wed, 14 Sep 2022 20:42:35 -0400 (EDT) Received: from mail-yb1-f176.google.com (mail-yb1-f176.google.com [209.85.219.176]) by mta-10.privateemail.com (Postfix) with ESMTPA id A7548180009F for ; Wed, 14 Sep 2022 20:42:35 -0400 (EDT) Received: by mail-yb1-f176.google.com with SMTP id 198so20272114ybc.1 for ; Wed, 14 Sep 2022 17:42:35 -0700 (PDT) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 4b4a3b18-348f-11ed-9761-273f2230c3a0 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=tklengyel.com; s=default; t=1663202555; bh=6c+E15qTNQYC/Wgk4Qqg+ltDuo8IcNO92o6suwDssqc=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=WJO+a/esGO7vZmjH9rkz+x+c3WXgVGPUwpkE+Q+8lHkMww+ox8GehLac0SBzPlWQu FwDFlsxzx+igUrWMr3kwDznmIkBLjwxWYLz9KROUo5vKWKHQiOKzti0ygciYTFIIBa 2vOvlgdjv+R83rsYHJG0l1mwb86iYFaLZyhx4B+7R6Xqw4HJvWl3gfTOJrP193cdKy DFvlk1qfcaVcXWNiHEuMvPS3AUsr1bwXCiX3hLXoJYhgJIvU96AjMjByEmo5Es8Dj8 iSzhhTqWamEKm+u4F6WqJSTiFitGHmMQZr1iJ/OeKr6OMnAZWd4Dtz+g12VKWAOZTQ 6lfCvHJ93mi8A== X-Gm-Message-State: ACgBeo0mnwQAr/HaqQLk4uq/XThKxvX9UxyxnzuMJjeL5IOGaguuWzqg CpdxTZWHtJnnbRb68ch1YT6oIGRcasshDu8Q0gU= X-Google-Smtp-Source: AA6agR6vNdfJmyrGtXQMpdHUrYYtj4+Ij8hZ6HdUfxbXI17jGnYNIJxWqfW62UGGAmoUVRm6hN6dv8FYjII3Pc8rjus= X-Received: by 2002:a25:42d7:0:b0:6ae:ae83:59c0 with SMTP id p206-20020a2542d7000000b006aeae8359c0mr18860776yba.165.1663202554967; Wed, 14 Sep 2022 17:42:34 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Tamas K Lengyel Date: Wed, 14 Sep 2022 20:41:59 -0400 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: Console output stops on dbgp=xhci To: =?UTF-8?Q?Marek_Marczykowski=2DG=C3=B3recki?= Cc: Xen-devel Content-Type: text/plain; charset="UTF-8" X-Virus-Scanned: ClamAV using ClamSMTP > > Do you have any idea what might be going on and preventing the output > > from showing over USB3 afterwards? The /dev/ttyUSB0 device is still > > present on the receiving side, just nothing is being received over it. > > There are few more patches in the series that are de facto required. > Especially those about IOMMU, otherwise it can only possibly work with > iommu=0 (which I'm not sure if even is enough). Unfortunately with iommu=0 Xen doesn't boot at all for me. I see this on the console: (XEN) Panic on CPU 0: (XEN) FATAL PAGE FAULT (XEN) [error_code=0011] (XEN) Faulting linear address: 00000000328b3a54 Not sure what's up with that. Either way, can you post a git branch with the remaining patches that are not yet merged in master? Want to check if those patches resolve the issue. Thanks, Tamas