From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from CH5PR02CU005.outbound.protection.outlook.com (mail-northcentralusazon11012019.outbound.protection.outlook.com [40.107.200.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 42F3B3783D8; Mon, 27 Apr 2026 18:10:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.200.19 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777313409; cv=fail; b=AsR2mM6qnPaq9dBjq1nmVspg3/n/nt2GgVp42NWXaOHdhcfBE4dSRffGWDNnmhyehmZ8osWwsTxwWiSLq4kzJI0+oMZmDZzxpY61dHvynX4bbpkCPmO5Kuyp/e+axvqjJ7zc5E8bBd5XIMiPCHSg9KBsJvPl0jAB9w3GQxc1oHA= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777313409; c=relaxed/simple; bh=0uaVteh9hx/7zDlQZO3FREYFQ/q6RXJWA5ozMDxnHZk=; h=Message-ID:Date:Subject:To:Cc:References:From:In-Reply-To: Content-Type:MIME-Version; b=A05TsbwB6Oms1Is3SLp5f926oWo4CVt/KCBD+efTqg4Kvoc1ZL1KN1R/QSbUycXo3dPPIngRStGXjxja5MzhqGYvslW+y1nYgPbyNjwDNcu4RYRPAZvhmngPwnhaTK7ceF67gVZKEOlytXuTcp/i7Es2N7FXmwMPNgsjUyqQ4SI= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com; spf=fail smtp.mailfrom=nvidia.com; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b=eVj4ka/t; arc=fail smtp.client-ip=40.107.200.19 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=nvidia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b="eVj4ka/t" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=Axxl9geHjlWJG0F5iiajwnsJ51Wr5n55IQerc7SWduLGA/Qj8e0WLVT5ogpub0g448zZaXey2eRZvqkVT3EoddlJiOmuGmpS1s05YOw8s07tr7BOSJcr70dPgS657FklrKaTtoer7MgaZw7vyFJUx/O/IccE/83FM72KoWlLjfmJgOrsqIA7soowaU7mQ+dtvjFzjWZ5L84ITw5uuNvw0fSUQUZqgi+PeVU5AeKLJBTG8pfLi+UBKMyH/KuOD8qzAqLAYlQUUu/qNTEFdh0igTPuzVLlXMdgAfc6EU8ybjOvcgOo0L2iUurgq45N5/FWaU1DgD3wiN4uXSEWIBkMTQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; 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=Y/+Z6ALF7viIqtE7+GOEKb2zWFB9X6FQrzLGWLBiD74=; b=OqGQMb0vuB09GBp8RxF6Cx50q09tEWRDPde3heg5BrSdeKPgyscPjRkLfEcadbtFDVTWjkj5faCaAG/tFvJYJ7zHXf2UkMTQoael9b+V+DG3daDKh54B7SSRn6d574VfnHl+jL0mPUmufCbxzsrg87KGEsPvOrRvSPszn1naohcAo2BGAJJpVi6gJSiJdVfZ50bj9vxZoMUJg3CsEzPKMiXHyxsNWtOEN0CRUGY28UCiuuoC0HdojSPqWCpHXIeY//z76jGr+Ym+UKvJaKG67fpWkR4zaQTTTPsbxIq+UHsN+wnqw98dfLixLlxW0qf/PQympT3iEPmV0AX/SlNynA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com; dkim=pass header.d=nvidia.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Y/+Z6ALF7viIqtE7+GOEKb2zWFB9X6FQrzLGWLBiD74=; b=eVj4ka/t+wMi8wS3sKgHvb5cIqNnQA3zqtb2E0AWvfwbToZEVbkOWcSSCrZkqZPlwzjX0G461yXU3x/AIl2OoLosP3wD09Qq06ah8JOzewdtV0MHPlomThUVJ+qcencAd374RXeNVQhcMwOQOUt/I5h97l5Ed7Y3vdh+pppwKvdFI3T976vlmNKVWoBSUc8f2p7NmKGkHn5TFO9XyiNWbVHtziDJJCHNfMjcBHVt5l3RUSvDpKq5vqpBN7uJ3QpsMinXnZqTW7BQAA3/nPeireGu26MQQ7LnQVRAZVhs3VkpAFUT7eQlhcM1BZ/lyjdNON5UNvHGjjKvCL2JwnD5Wg== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Received: from DM4PR12MB5248.namprd12.prod.outlook.com (2603:10b6:5:39c::15) by CY3PR12MB9655.namprd12.prod.outlook.com (2603:10b6:930:100::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9870.12; Mon, 27 Apr 2026 18:10:04 +0000 Received: from DM4PR12MB5248.namprd12.prod.outlook.com ([fe80::92d8:797b:4db0:d385]) by DM4PR12MB5248.namprd12.prod.outlook.com ([fe80::92d8:797b:4db0:d385%4]) with mapi id 15.20.9870.013; Mon, 27 Apr 2026 18:10:03 +0000 Message-ID: <5293b717-6a8e-40b6-bd6b-61043a062451@nvidia.com> Date: Mon, 27 Apr 2026 21:09:59 +0300 User-Agent: Mozilla Thunderbird Subject: Re: [REGRESSION] aquantia: Sunshine/Moonlight UDP video streaming broken since 5b4015ad833c ("net: aquantia: Remove redundant UDP length adjustment with GSO_PARTIAL") To: Matthew Schwartz , Dragos Tatulea , Jakub Kicinski Cc: regressions@lists.linux.dev, netdev@vger.kernel.org, "linux-kernel@vger.kernel.org" References: <6c3fb15e-711d-4b8d-b152-e03d9b05293f@linux.dev> From: Gal Pressman Content-Language: en-US In-Reply-To: <6c3fb15e-711d-4b8d-b152-e03d9b05293f@linux.dev> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-ClientProxiedBy: TL2P290CA0023.ISRP290.PROD.OUTLOOK.COM (2603:1096:950:3::12) To DM4PR12MB5248.namprd12.prod.outlook.com (2603:10b6:5:39c::15) Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM4PR12MB5248:EE_|CY3PR12MB9655:EE_ X-MS-Office365-Filtering-Correlation-Id: 44c5683e-d9b5-408a-e4f1-08dea488348d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|366016|56012099003|22082099003|18002099003; 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:DM4PR12MB5248.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(1800799024)(376014)(366016)(56012099003)(22082099003)(18002099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?cUZuTk9mcmJFRWZ6N0VOQ0Z0V1lFZndJWjBRUUtoc2g4RnVVUWlnVWNHZnJK?= =?utf-8?B?bEMxWXR5djFQYzN3S25VUExxSzhLWTZucEFoRnNzdnJ5SEUvNk1ZRm9hM2p5?= =?utf-8?B?QXQvRE1HT0dkUWRzYjJKZDRRK2dBRFMzbjBKNEhwUml3ZkYxc2xGZ1l0dkd2?= =?utf-8?B?Vmg3MENBajVkanJqVDd5QnA4UmUrd3lnSVQ0TUM4WDRsM0I0MldrM1p4bXdQ?= =?utf-8?B?WTFXbFYxVXZ0VERWRllFYmtvM3Q0UWxrcGJLT0k0dU4ySG16M2VoMGtJckdk?= =?utf-8?B?bSt5YTkwYzlzQ2R4YmE0MWxpNnV0T3VyM2pCNllIeU5uangrZEVKV2VkTEVB?= =?utf-8?B?Zm9WcGdMMXlBeFFrUExaVWl6QVVNVDliNjJZZ1lIMmxHYXpqOXorVVVXQW5m?= =?utf-8?B?Rnk3SnEybXVvR1QzMURzMVhXZmtTdHByNHJDaW5OcVJVc1NQYTE0aXM5dkNu?= =?utf-8?B?VlNOWC9GK1k3OGZlaXRSOW1GUXJpTnBzcENYb2JuMGVKUjlVZUhScXFvVFZk?= =?utf-8?B?dytBbXA1R2xpdGtjb0lnQ1l3bUh3djFLQUhBaGtlQ1VzcnFSblF1TXdkS28z?= =?utf-8?B?bkkzdmxyYzUzT3haaXRvKzRYanA0dzZRK2lxOW9MNTlJWHNRWklkaUx6a2Mv?= =?utf-8?B?S25TNG1McW9KWkV2ckRyZ0lRWUQ0dDc1bjNqU1V4am9LS0QrbG42SFVqalpr?= =?utf-8?B?aTRTcmd1MlZZVVJwSnlCOHc2OUZLdEVraytmVGVIYmRhTHBGcjVXU1NJQmtj?= =?utf-8?B?bXJOVWgrNkZwNTgzR3g0M2RYTXgxR2I4eng4WFFWTjV0ZzQ2TWphWEk4Wm5H?= =?utf-8?B?ZHlEQldzVmNRMGN4bXMvWG1WYmg1ZE00aENyYW11ZzNrcWFoaW9GWDBWMVZO?= =?utf-8?B?OWJmSnkyUlhwbys5UnhidE1MWmEwbDBnTzJMTUR6Y2R4Zi9CdE8zc3ltR2E5?= =?utf-8?B?THBKNThHQjhoVisrR3NGK0dtUk5ENHllUzVyVWxBanNoNUpWK2RFNGgvaThK?= =?utf-8?B?L2RqK1BhUUpzQ2FWb3QyamdaMmJRWWx4N0dLRDhwRFBNU3NjV3NLelNtdHJI?= =?utf-8?B?VVh1NExuZnBabDZHWmFtWGw0TUNnZTk4ZUJ2WlByM1VCR1lSY0dyU0J6N3hE?= =?utf-8?B?c3Y3ckNuc3lqbWZ4ZXM0S1ZMeCtpTDJmTFpxN0NMaThFcE5BY2l5Z01nN1JP?= =?utf-8?B?ZEEyV3Y5QTNKU1NXWU9TQldXdXFYS0Y1a2J5VXpvR2cyeFFOTVVQUzdQMFF3?= =?utf-8?B?UjdoVG9hczZUc1hOMTRjcmxBM1V4d095MjV4OW1JWFB6bXNadnUrK0JGTi9h?= =?utf-8?B?MnpSV3pCQTVhTWtaMXZUdzJnd2YvMjU2QTY2SHZNUU9Mc21STFg3c2RIN3FG?= =?utf-8?B?VFE3NmQrMzROcGdnWitRTmFnQ1pZVzJQRjBORGdBZHlHc1BNb2grUzFLQjhG?= =?utf-8?B?N3VOejl0OElYYXNQdlZ6V1lYRTE0eTYwN3FJLzFPNlNhcGx5dWVPMzA1VG82?= =?utf-8?B?UDFPVk5vVXRiVFRWSTc1SkFsTkYydGNNSmpjZzFpT0hQT3kwMDg2d1p1UlRV?= =?utf-8?B?ZmhJd0dXQXpqamVWQ1ZIU1JldWthTGozMTJGdlBpdTJpZVJqQzQrRk1IVzA4?= =?utf-8?B?OTh2SXNRNlR6U09SWksvdnN5eGVncVd4MWptR080eXZodEd5SHZ4RklGbjFm?= =?utf-8?B?U2pSamJCZzllQVVqbWJ0Y1pNQ284MnNoVGhIeTJwVDR3eFdBK1YyLytqbzRr?= =?utf-8?B?UkswaHM5R0FvOVNTOU1QRlk5REt6dzV0QmwrMDc5ZlBHVjhMZUl5N0hLZW1E?= =?utf-8?B?dkxCa1UyYTNUbWI4MXBjdXdNeHFSRzFPbjh5TldvQ3czd0Q5VVBzZ0duM2dy?= =?utf-8?B?VFkwVk45djVyUUhvMlZFS3lJdjJBVWUxYWZTdXgvUTNrK0VXZC9yZkZ3THFE?= =?utf-8?B?aFA3MmFxNEt0dnR4ZGprM1UxOVBzSEcwcEt6QTEzOTFTQ1pZcWRaQ0cxQ0Rx?= =?utf-8?B?YjRkWGZrejZtcXhFSE96VzAwSnp2NFlOT2RqOTVOSmc0eEFuQ2ZqNnEwKzJI?= =?utf-8?B?MGNnWnNYZU9qRDVpU1BvbUdvc3NoZmRjYXVLbnZhemFYT2hFVUQ3TmF5N2RR?= =?utf-8?B?S2d5OEd2UE5KVTRCOHZYVldiVFRZM3R3M0R2cnczRjNQZmNZSW9hbnNXbmVR?= =?utf-8?B?TmNmK0JZQnhVRldvWjZNNU5BSlpGc20vcE5rNmVUWTJDTmhSZUF3dWRNYW0r?= =?utf-8?B?Z1ZqbkpldkQ3V3pGZHI5QkJ1bGVxQlJ3cCsraFNtbVdQTzZPYVpFRHdHYTVV?= =?utf-8?Q?xSRNf4dU+oiLCz5x3q?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 44c5683e-d9b5-408a-e4f1-08dea488348d X-MS-Exchange-CrossTenant-AuthSource: DM4PR12MB5248.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Apr 2026 18:10:03.8736 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: ZvlbaBdsXVbkkdto49zgTffd6/0buj/bngSDlqXWX/pQH8SlwefKNoWfQxBXrbni X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY3PR12MB9655 Hello Matthew, On 27/04/2026 2:20, Matthew Schwartz wrote: > Hello, > > When using a previously working setup of remote streaming from my workstation to another device via Sunshine (the host server) and Moonlight (the client app) on my home network, I no longer receive any video output on the client app after upgrading my host workstation to kernel 7.0. Reverting back to kernel 6.19 on the host restored my setup to a working state. > > After bisecting, I landed on 5b4015ad833c ("net: aquantia: Remove redundant UDP length adjustment with GSO_PARTIAL") as the first bad commit. I confirmed this by moving the cable to my second on-board NIC (Intel) on the same workstation, which restored video output without any other kernel changes. My affected on-board NIC is Aquantia AQC113 [1d6a:04c0] (rev 03), atlantic driver, firmware 1.3.34, MTU 1500. > > Looking into it a bit further, ethtool -K enp97s0 tx-udp-segmentation off also serves as a workaround on my Aquantia port without changing to my other ethernet port. The working Intel NIC reports tx-udp-segmentation as "off [fixed]", so traffic falls back to software UDP segmentation on there. > > Please let me know if there's any additional info I can provide. > > Thanks, > Matt > > #regzbot introduced: 5b4015ad833c Thank you for the report and the bisect! I will take a look and try to figure out what's wrong (though I don't have real hardware to test on). Is the userspace app open source? can I see its code and try to run it myself? I will be OOO for the rest of the week, hope to have some meaningful reply by the end of next week.