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{ "id": 478, "url": "http://patchwork.dpdk.org/api/covers/478/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/cover/20231212042517.164353-1-artemyko@nvidia.com/", "project": { "id": 1, "url": "http://patchwork.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20231212042517.164353-1-artemyko@nvidia.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20231212042517.164353-1-artemyko@nvidia.com", "date": "2023-12-12T04:25:11", "name": "[0/5] addressing races in concurrent process startup", "submitter": { "id": 3172, "url": "http://patchwork.dpdk.org/api/people/3172/?format=api", "name": "Artemy Kovalyov", "email": "artemyko@nvidia.com" }, "mbox": "http://patchwork.dpdk.org/project/dpdk/cover/20231212042517.164353-1-artemyko@nvidia.com/mbox/", "series": [ { "id": 30517, "url": "http://patchwork.dpdk.org/api/series/30517/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=30517", "date": "2023-12-12T04:25:12", "name": "addressing races in concurrent process startup", "version": 1, "mbox": "http://patchwork.dpdk.org/series/30517/mbox/" } ], "comments": "http://patchwork.dpdk.org/api/covers/478/comments/", "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from mails.dpdk.org (mails.dpdk.org [217.70.189.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 0EA81436CB;\n\tTue, 12 Dec 2023 05:25:41 +0100 (CET)", "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id CCC0E42DD9;\n\tTue, 12 Dec 2023 05:25:36 +0100 (CET)", "from NAM04-MW2-obe.outbound.protection.outlook.com\n (mail-mw2nam04on2041.outbound.protection.outlook.com [40.107.101.41])\n by mails.dpdk.org (Postfix) with ESMTP id 9594B402EB\n for <dev@dpdk.org>; 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helo=mail.nvidia.com; pr=C", "From": "Artemy Kovalyov <artemyko@nvidia.com>", "To": "<dev@dpdk.org>", "CC": "Thomas Monjalon <thomas@monjalon.net>", "Subject": "[PATCH 0/5] addressing races in concurrent process startup", "Date": "Tue, 12 Dec 2023 06:25:11 +0200", "Message-ID": "<20231212042517.164353-1-artemyko@nvidia.com>", "X-Mailer": "git-send-email 2.25.1", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-NV-OnPremToCloud": "ExternallySecured", "X-EOPAttributedMessage": "0", "X-MS-PublicTrafficType": "Email", "X-MS-TrafficTypeDiagnostic": "SA2PEPF000015CA:EE_|BN9PR12MB5382:EE_", "X-MS-Office365-Filtering-Correlation-Id": "09b081cc-ed39-48c9-5177-08dbfaca5fda", "X-LD-Processed": "43083d15-7273-40c1-b7db-39efd9ccc17a,ExtAddr", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;", "X-Microsoft-Antispam-Message-Info": "\n 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", "X-Forefront-Antispam-Report": "CIP:216.228.118.232; CTRY:US; LANG:en; SCL:1;\n SRV:;\n IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc7edge1.nvidia.com; CAT:NONE;\n SFS:(13230031)(4636009)(136003)(376002)(346002)(396003)(39860400002)(230922051799003)(451199024)(186009)(82310400011)(64100799003)(1800799012)(46966006)(36840700001)(40470700004)(41300700001)(82740400003)(7636003)(8676002)(8936002)(86362001)(316002)(36756003)(70586007)(70206006)(6916009)(478600001)(356005)(2906002)(6286002)(40480700001)(426003)(7696005)(336012)(55016003)(1076003)(26005)(5660300002)(2616005)(83380400001)(40460700003)(47076005)(6666004)(4326008)(36860700001);\n DIR:OUT; SFP:1101;", "X-OriginatorOrg": "Nvidia.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "12 Dec 2023 04:25:30.0288 (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n 09b081cc-ed39-48c9-5177-08dbfaca5fda", "X-MS-Exchange-CrossTenant-Id": "43083d15-7273-40c1-b7db-39efd9ccc17a", "X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp": "\n TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.118.232];\n Helo=[mail.nvidia.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n SA2PEPF000015CA.namprd03.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "BN9PR12MB5382", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org" }, "content": "In the process of initiating multiple processes concurrently, specifically with\nautomatic detection of the primary process, certain race conditions have been\nidentified. This patch series introduces a straightforward test that showcases\nthe issue and subsequently addresses the problems surfaced by the test. These\nfixes aim to ensure the robust and secure utilization of DPDK within intricate\nsolutions that involve starting processes with job orchestrators such as Slurm\nor Hadoop YARN.\n\nArtemy Kovalyov (5):\n app/test-pm: add multiprocess test\n eal: fix multiprocess hotplug race\n ipc: fix mp channel closure to prevent message loss\n eal: fix first time primary autodetect\n eal: fix memzone fbarray cleanup\n\n app/meson.build | 1 +\n app/test-mp/main.c | 49 +++++++++++++++++++++++++++++++++++++\n app/test-mp/meson.build | 8 ++++++\n app/test-mp/run.sh | 39 +++++++++++++++++++++++++++++\n lib/eal/common/eal_common_memzone.c | 12 +++++++++\n lib/eal/common/eal_common_proc.c | 4 +--\n lib/eal/common/eal_private.h | 5 ++++\n lib/eal/common/hotplug_mp.c | 3 +++\n lib/eal/linux/eal.c | 3 ++-\n 9 files changed, 121 insertions(+), 3 deletions(-)\n create mode 100644 app/test-mp/main.c\n create mode 100644 app/test-mp/meson.build\n create mode 100755 app/test-mp/run.sh" }