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 DDB7BC6FA89 for ; Thu, 15 Sep 2022 14:10:32 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.407409.649921 (Exim 4.92) (envelope-from ) id 1oYpZJ-0007Dt-Kf; Thu, 15 Sep 2022 14:10:17 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 407409.649921; Thu, 15 Sep 2022 14:10:17 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1oYpZJ-0007Dm-Go; Thu, 15 Sep 2022 14:10:17 +0000 Received: by outflank-mailman (input) for mailman id 407409; Thu, 15 Sep 2022 14:10:16 +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 1oYpZH-0007Dg-WB for xen-devel@lists.xenproject.org; Thu, 15 Sep 2022 14:10:15 +0000 Received: from EUR05-DB8-obe.outbound.protection.outlook.com (mail-db8eur05on2048.outbound.protection.outlook.com [40.107.20.48]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 1e61a42a-3500-11ed-9761-273f2230c3a0; Thu, 15 Sep 2022 16:10:14 +0200 (CEST) Received: from VE1PR04MB6560.eurprd04.prod.outlook.com (2603:10a6:803:122::25) by PA4PR04MB9269.eurprd04.prod.outlook.com (2603:10a6:102:2a4::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5612.22; Thu, 15 Sep 2022 14:10:12 +0000 Received: from VE1PR04MB6560.eurprd04.prod.outlook.com ([fe80::59bc:901a:98a7:76d4]) by VE1PR04MB6560.eurprd04.prod.outlook.com ([fe80::59bc:901a:98a7:76d4%5]) with mapi id 15.20.5632.015; Thu, 15 Sep 2022 14:10:12 +0000 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: 1e61a42a-3500-11ed-9761-273f2230c3a0 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=PsPGZx9x75mhVYbsUi92mu6zoX3I7NZkVwlyuWuK0JecVxkXKk/KkpZkGah5nTEV1lEJ9KLiC6bYX7k2kLLibsrPLCVgbZckEtoLBg3HyoE5rY+IXb8J4AAS607RkwbCvjW+zyKXY35tpGL3Ry+orw2m/OiaTOf8pkmCrt7QklBrVpcYVvAWs6ConAqyS0qwcTGhP0w15Tgr8/gG3K+KjcNoZDlWLEO27+w/K+jsA6GNloH/k0cyvPHPSOM5huzCbtq7SE06bx4X/DQuzGyvVYCxu7qtmH6roTkGRccqyvRCoFplzAzD+X1FrDthzJY0B3eVA3SsgEgcBswVC0qaSg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=pjA1wDACamPBIavzDa3U2kJc3Ji464I5quEEqDqAaX0=; b=Gh4mBA/B4GP9pv1iPbyh2LylV8sgUpi6OS3/pD0xo+tMd1CxsfrN3NG9Nw3u4k31noWoeEdw5+o01eKf6DqaUly2gSczkED6blSmWdgIoW94Pq+STVD33hbOl+uRR7jaUc3moogoZhQHV0RInIHDwvvLwxHy++dJa0j00V70TDW0roSGMS7SEmHKCY+hxCdO2C9WFD+g6FUdL4jKFqzcZFMf5PBD1nXHJLTBTr5Xl/KUJmT3MfvBN4LzcSrdxN8tCRss1BbobMsIGuLJ7hEqwV0Fy7G6IiTqi+xncQ7r8/zN/TaNekfpQljLziO1ugWgdhEwwUOQR1UKGlOUYpJ+ng== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=suse.com; dmarc=pass action=none header.from=suse.com; dkim=pass header.d=suse.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=pjA1wDACamPBIavzDa3U2kJc3Ji464I5quEEqDqAaX0=; b=0Q/n6yeDRQWYVpkCXV59f6n+yVdhRCFjNhl3NPCXk2mSNvvk0NxW2z7Dhdv2p0V9xMRbiH73vplArHujCuutxpHs6uqe3Aq6zTW/G2NyPKId6gGjf3fbktMkWvrHnvvinZTj4HCxSpFuj0O9z/wvLRUyP2NrvNcXcT/insWJSRVYZtNiJwSifYPK8UP4v1igYg/28zR0uYKgK5HTDccnvtP/923sgjM0gP1ckl8q46d+WUCNq5zpuvPO4sZ7/TctCS/LfA5NG7MzykJtjTm82IE4iBDJLt1yeBPGC/ikXejI4CIpIZ2ylMKUP4016Y5xBYSwH04zKqbwgwAXblTKQA== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=suse.com; Message-ID: <7adee56c-607e-7d3f-8aa6-1ee5b2fdd133@suse.com> Date: Thu, 15 Sep 2022 16:10:10 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.2.2 Subject: Re: Console output stops on dbgp=xhci Content-Language: en-US To: Tamas K Lengyel Cc: Xen-devel , =?UTF-8?Q?Marek_Marczykowski-G=c3=b3recki?= References: <32e97d9a-a5b6-05bb-5cb2-bf9a1461c851@suse.com> From: Jan Beulich In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-ClientProxiedBy: AS9PR04CA0111.eurprd04.prod.outlook.com (2603:10a6:20b:531::6) To VE1PR04MB6560.eurprd04.prod.outlook.com (2603:10a6:803:122::25) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: VE1PR04MB6560:EE_|PA4PR04MB9269:EE_ X-MS-Office365-Filtering-Correlation-Id: b5f8e68b-d2d8-4e85-eaaf-08da9724014a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:VE1PR04MB6560.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230022)(346002)(39860400002)(376002)(366004)(396003)(136003)(451199015)(31686004)(186003)(83380400001)(316002)(6486002)(41300700001)(38100700002)(53546011)(8676002)(54906003)(478600001)(6506007)(6512007)(6916009)(66476007)(2616005)(66946007)(66556008)(8936002)(4326008)(2906002)(26005)(5660300002)(86362001)(36756003)(31696002)(43740500002)(45980500001);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?VXRPS0ZxZjRiV0lKUEVZLzFCdmF4b0lLSURocU5Qa2xFOGYxQW80V25qREgx?= =?utf-8?B?aW5iRFMrZEkwcFFUS3JPSFNTMlpzS2FJa1pTRzZsLzZOM1p0N0tmd25xV01W?= =?utf-8?B?SFdPUmlneTNUY2lDTE15QmNEbnhTTXNLeU9CR1Ezd1l6cXFNL2JRR3ZNcVNO?= =?utf-8?B?L3o3ZmhOSWdBVEVMQ2p2eFloenNnZ0lFWVFRNUhTY25UTnJ2QmF0bVdCRHdz?= =?utf-8?B?alk3TXFtcmtxTTJOTDVqM0dsL2lBQW96TE90QnRVRXhNRWFFZlR4cG5JcGVR?= =?utf-8?B?d0RDdHhiUlZHVlp1R0ZuWmV2aVhJY1I3MllydjZtTm5nYmZ4ZnNsa0lGbms3?= =?utf-8?B?WnFBN2VORjl3dEV3KzZBcnA5cGhlemJVWXQyTkVEajR4ZWJlNHZteG81OFNl?= =?utf-8?B?Y0R0Mkc4dHBBbGVVZCsvUExRRHJPWHMvVFUvbEpCNHBoM2ZFUEU5WGdldlh5?= =?utf-8?B?YmJzejJEa3BENDN2bENmZWhkOVlKU0RjN2FsU01GWEdPTnZ0eHVPL0g0dGVh?= =?utf-8?B?TkthVDZiL0NrSFRwWW53bjdNUExBSnArZkE2cUxGbVdkL1ZMOHBGS1lWemdT?= =?utf-8?B?VTBQbkhkcTArczRMenJIc3pxZ3BiZTZpM0NseTJRMWg4WWMyY3J2Y28xN1VE?= =?utf-8?B?NjZUL0RNTVlGcmdSZXZEcEtWTWYvOVQvT0dsd2JpQnNvQmlidlZiZW05cDJH?= =?utf-8?B?WWt3TE1CZDVUTzl4VnNUTnNiSFIvNnJGaFQ2NnU0amNNK0FITVJ1MVFBUjRS?= =?utf-8?B?QUdsbFlmZ0EwZlFya2tXalNFYm1PWjkwTWhQL2pHdGVZOFFaV3IzS0xlV0kx?= =?utf-8?B?ckxERUlOOEltbVUzaUM4YXQxR2VsYStEVzJVNGZXN2YwY2hXaUVxSHBmTVU5?= =?utf-8?B?TVFxUFJrNE00RGFKN1NZMzl2VndNQWsvVW92QnE5WDBQVjNBSmhIQ2hSVlRU?= =?utf-8?B?WmhuODZ5T0NuYzNoaEtPaVVBcHZwTlUzZTBhZkYyYUp2cXVLK0RpYlBzMEdB?= =?utf-8?B?aTVLSlN1bDd2eldsTXNaenZkVHlhVUFLbzZZM25XT3Q5elZHcE9jQkRYM3JB?= =?utf-8?B?TkZVd0sybC9KbmdNcGhYOVI2dVE2emRnWXVOYnhnVjRaQkpkeXNlN011d1N3?= =?utf-8?B?VVVtbURlNndocnQ4SFFMYW11NEJoNlp0Y2ZEQWJpbTNQRnN3aVU5VzUxL0tx?= =?utf-8?B?SlYyU0VUbmIvRU1lM0FkUDRDeHdjN3UyWFZ0TjA5S3lMM1JNSmRrWnVnY05C?= =?utf-8?B?eFpKM21paDlqZW01VFk1OUUxYmx1Z0R2ZStGcEFUYXlxamlUa3JKektxS1hE?= =?utf-8?B?L096Ujl0ZWJnaFZGd01uQW0xYk1DZm1ZbStmNHp6aUZ1VFMrNnIrZURlbFhj?= =?utf-8?B?b05DSDBXUFZ0d2xLdlFVMHRmdFMzMm14a0dXRGRuZVR0RkJkR1JOWWhCWnFL?= =?utf-8?B?SUdZMmdiSC9CZVc5TUVibS94MFZjRStudEFqZFFUUnM2MHpqTXRSSUlXNGI2?= =?utf-8?B?bzR1c0RYTk9nOHFCYlRZRS9YRUhKOUpXbDNWQzdXb0p1WllPMGt1am80ODNk?= =?utf-8?B?cVhYc1hpUmp0aC9aVlFzVnNoTGdjLzJTYkdzZGJLc0VaczRDT2x2cHpVN1l4?= =?utf-8?B?RVduQkJqRjNic015NjlmMm16RUU4c3BqSGNpdnYzOGlGdG9hMzIzOGROYlg5?= =?utf-8?B?a2wydVFaR3NKM28xZUdMK2prZmxwZU1nWjdZR3V5bWV4S0RTVHVYNW14Wnhh?= =?utf-8?B?RjQ5Ykljb0pDdjVpM2t3YlJ5cFEzQTFOQlg3bm9Bc1pYTm9KMHd1bVNvVTlS?= =?utf-8?B?ejhoL2U5bW9jQU42WW5ZcHJvY2Z4NUFpdTFyNDYxTnU2eTIwZzU4QnJQd1dp?= =?utf-8?B?TTdCV1J0dVNRTWFxT2d1V3RyTHR5alNvWDlPSzdVdm41TFRDb0dsK0Z1QVMz?= =?utf-8?B?eG9FSXNXS1hORjMzTmhvZlA3UUZpM1gvdCtKdFAvRzd1a2xkZFo1OE10Nitl?= =?utf-8?B?RUxadnZVUEhsWVlsMGF2SlZ0WHQvVGNJd0FRaHladTdjbmRDd29aM2E4bjQx?= =?utf-8?B?Y0VLM0JRZDdpWmVTTHVaYUtlNmVvTHBBYTF6ZXM5QnJ6VHV0SW9ZNzM3N1hq?= =?utf-8?Q?QpH8bDrAelEegiHE+pxpJkxwG?= X-OriginatorOrg: suse.com X-MS-Exchange-CrossTenant-Network-Message-Id: b5f8e68b-d2d8-4e85-eaaf-08da9724014a X-MS-Exchange-CrossTenant-AuthSource: VE1PR04MB6560.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Sep 2022 14:10:12.3900 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: f7a17af6-1c5c-4a36-aa8b-f5be247aa4ba X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: YIkLmctcCsf61PyREy1/7zYxKwvTm1rUmdDtWruQR5O/7VJZBjTyn5aXM1AJ0kD7b3M/wuDnr35qr+7nqqpQ1w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PA4PR04MB9269 On 15.09.2022 16:05, Tamas K Lengyel wrote: > On Thu, Sep 15, 2022 at 3:56 AM Jan Beulich wrote: >> >> On 15.09.2022 02:41, Tamas K Lengyel wrote: >>>>> 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 >> >> Perhaps in another thread, could you post details about this? I guess >> we want to address this independent of your XHCI issue. That's an >> attempt to execute code outside of the Xen image - the only reason I >> can think of for this would be an EFI boot services or runtime >> services call, with (possibly but not necessarily) quirky EFI firmware. >> Any other context this is appearing in would quite certainly require a >> fix in Xen, and I don't see how "iommu=0" could affect the set of EFI >> calls we make. > > This was indeed observed with a xen.efi booted directly from UEFI. > Beside the limited boot log I get through xhci I don't have more > insight but happy to send that (and anything else you think would be > useful). And with "iommu=0" but no use of XHCI it doesn't crash? Or there you have no way to collect the log then? In any event, from your description the interesting part might be the EFI memory map. That ought to be pretty stable between boots, so you may be able to collect that in full via "xl dmesg" in a run without "iommu=0". Jan