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{ "id": 87995, "url": "http://patches.dpdk.org/api/covers/87995/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/cover/20210218212746.3073-1-Renata.Saiakhova@ekinops.com/", "project": { "id": 1, "url": "http://patches.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": "<20210218212746.3073-1-Renata.Saiakhova@ekinops.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20210218212746.3073-1-Renata.Saiakhova@ekinops.com", "date": "2021-02-18T21:27:45", "name": "[v4,0/1] eal/interrupts: add synchronous wrapper around unregister", "submitter": { "id": 1694, "url": "http://patches.dpdk.org/api/people/1694/?format=api", "name": "Renata Saiakhova", "email": "renata.saiakhova@ekinops.com" }, "mbox": "http://patches.dpdk.org/project/dpdk/cover/20210218212746.3073-1-Renata.Saiakhova@ekinops.com/mbox/", "series": [ { "id": 15293, "url": "http://patches.dpdk.org/api/series/15293/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=15293", "date": "2021-02-18T21:27:45", "name": "eal/interrupts: add synchronous wrapper around unregister", "version": 4, "mbox": "http://patches.dpdk.org/series/15293/mbox/" } ], "comments": "http://patches.dpdk.org/api/covers/87995/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 A259DA054A;\n\tThu, 18 Feb 2021 22:28:04 +0100 (CET)", "from [217.70.189.124] (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 331ED40040;\n\tThu, 18 Feb 2021 22:28:04 +0100 (CET)", "from FRA01-MR2-obe.outbound.protection.outlook.com\n (mail-eopbgr90135.outbound.protection.outlook.com [40.107.9.135])\n by mails.dpdk.org (Postfix) with ESMTP id 273B94003D\n for <dev@dpdk.org>; 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dkim=none (message not signed)\n header.d=none;dpdk.org; dmarc=none action=none header.from=ekinops.com;", "From": "Renata Saiakhova <Renata.Saiakhova@ekinops.com>", "To": "", "Cc": "dev@dpdk.org,\n\tRenata Saiakhova <Renata.Saiakhova@ekinops.com>", "Date": "Thu, 18 Feb 2021 22:27:45 +0100", "Message-Id": "<20210218212746.3073-1-Renata.Saiakhova@ekinops.com>", "X-Mailer": "git-send-email 2.17.2", "Content-Type": "text/plain", "X-Originating-IP": "[91.183.184.98]", "X-ClientProxiedBy": "AM0PR04CA0112.eurprd04.prod.outlook.com\n (2603:10a6:208:55::17) To PAZP264MB1413.FRAP264.PROD.OUTLOOK.COM\n (2603:10a6:102:188::5)", "MIME-Version": "1.0", "X-MS-Exchange-MessageSentRepresentingType": "1", "X-MS-PublicTrafficType": "Email", "X-MS-Office365-Filtering-Correlation-Id": "9d8b02b2-07ab-462b-ac39-08d8d4541257", "X-MS-TrafficTypeDiagnostic": "PAZP264MB1478:", "X-MS-Exchange-Transport-Forked": "True", "X-Microsoft-Antispam-PRVS": "\n <PAZP264MB14782F7A27A2455A056459DE92859@PAZP264MB1478.FRAP264.PROD.OUTLOOK.COM>", "X-MS-Oob-TLC-OOBClassifiers": "OLM:2150;", "X-MS-Exchange-SenderADCheck": "1", "X-Microsoft-Antispam": "BCL:0;", "X-Microsoft-Antispam-Message-Info": "\n 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", "X-Forefront-Antispam-Report": "CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:;\n IPV:NLI; SFV:NSPM; H:PAZP264MB1413.FRAP264.PROD.OUTLOOK.COM; PTR:; CAT:NONE;\n SFS:(39850400004)(376002)(396003)(366004)(346002)(136003)(5660300002)(1076003)(6486002)(6512007)(6506007)(6666004)(8936002)(956004)(2616005)(2906002)(36756003)(8676002)(109986005)(86362001)(478600001)(26005)(66946007)(52116002)(186003)(66476007)(83380400001)(66556008)(4326008)(16526019)(107886003)(316002)(266003);\n DIR:OUT; SFP:1102;", "X-MS-Exchange-AntiSpam-MessageData": "\n 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", "X-OriginatorOrg": "ekinops.com", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n 9d8b02b2-07ab-462b-ac39-08d8d4541257", "X-MS-Exchange-CrossTenant-AuthSource": "PAZP264MB1413.FRAP264.PROD.OUTLOOK.COM", "X-MS-Exchange-CrossTenant-AuthAs": "Internal", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "18 Feb 2021 21:28:02.4316 (UTC)", "X-MS-Exchange-CrossTenant-FromEntityHeader": "Hosted", "X-MS-Exchange-CrossTenant-Id": "f57b78a6-c654-4771-a72f-837275f46179", "X-MS-Exchange-CrossTenant-MailboxType": "HOSTED", "X-MS-Exchange-CrossTenant-UserPrincipalName": "\n yDm1kxkasU2nrVSltBiTk+jri6biuwQV2fNivcXaWuscIgMCdVnxHW6EL/lLmEBncbWESh0rCAR0hupS6EyIuvplttdSI1oXiUPtEvNmsCk=", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "PAZP264MB1478", "Subject": "[dpdk-dev] [PATCH v4 0/1] eal/interrupts: add synchronous wrapper\n around unregister", "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", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "For pci_vfio, while removing the device by rte_dev_remove(),\npci_vfio_disable_notifier() will call rte_intr_callback_unregister(),\nwhich may return -EAGAIN, if an interrupt source (kernel) has some active\ncallbacks right now. As a result, the callback (req notifier) can be never unregistered,\nand the corresponding descriptor (vfio_req_intr_handle.fd) can be never closed.\nThe kernel will continuously try to notify the user space using req notifier, but as\nthe device is already removed, in this case it even cannot find a bus for that\ndevice, the log is full of messages \"EAL: Cannot find bus for device (XX:XX.X)\"\n\nv4:\n* Typo spelling in commit message\nv3:\n* Subject line reworded\nv2:\n* Use only for pci-vfio in pci_vfio_disable_notifier()\n\nRenata Saiakhova (1):\n eal/interrupts: add synchronous wrapper around unregister\n\n drivers/bus/pci/linux/pci_vfio.c | 2 +-\n lib/librte_eal/freebsd/eal_interrupts.c | 12 ++++++++++++\n lib/librte_eal/include/rte_interrupts.h | 25 +++++++++++++++++++++++++\n lib/librte_eal/linux/eal_interrupts.c | 12 ++++++++++++\n lib/librte_eal/version.map | 1 +\n 5 files changed, 51 insertions(+), 1 deletion(-)" }