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{ "id": 75580, "url": "http://patches.dpdk.org/api/covers/75580/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/cover/20200817140828.9769-1-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": "<20200817140828.9769-1-Renata.Saiakhova@ekinops.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20200817140828.9769-1-Renata.Saiakhova@ekinops.com", "date": "2020-08-17T14:08:26", "name": "[v2,0/1] pci_vfio_disable_notifier(): avoid race with 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/20200817140828.9769-1-Renata.Saiakhova@ekinops.com/mbox/", "series": [ { "id": 11672, "url": "http://patches.dpdk.org/api/series/11672/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=11672", "date": "2020-08-17T14:08:26", "name": "pci_vfio_disable_notifier(): avoid race with unregister", "version": 2, "mbox": "http://patches.dpdk.org/series/11672/mbox/" } ], "comments": "http://patches.dpdk.org/api/covers/75580/comments/", "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from dpdk.org (dpdk.org [92.243.14.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id B1C44A0351;\n\tMon, 17 Aug 2020 16:09:02 +0200 (CEST)", "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 2596A1C0BC;\n\tMon, 17 Aug 2020 16:09:01 +0200 (CEST)", "from FRA01-MR2-obe.outbound.protection.outlook.com\n (mail-eopbgr90092.outbound.protection.outlook.com [40.107.9.92])\n by dpdk.org (Postfix) with ESMTP id F257C1C020\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": "Mon, 17 Aug 2020 16:08:26 +0200", "Message-Id": "<20200817140828.9769-1-Renata.Saiakhova@ekinops.com>", "X-Mailer": [ "git-send-email 2.17.2", "git-send-email 2.17.2" ], "Content-Type": "text/plain", "X-ClientProxiedBy": "AM0PR01CA0119.eurprd01.prod.exchangelabs.com\n (2603:10a6:208:168::24) To MRXP264MB0120.FRAP264.PROD.OUTLOOK.COM\n (2603:10a6:500:1b::10)", "MIME-Version": "1.0", "X-MS-Exchange-MessageSentRepresentingType": "1", "X-Originating-IP": "[91.183.184.98]", "X-MS-PublicTrafficType": "Email", "X-MS-Office365-Filtering-Correlation-Id": "20cd6a40-2a9b-4f4c-db9c-08d842b715fe", "X-MS-TrafficTypeDiagnostic": "MR2P264MB0737:", "X-MS-Exchange-Transport-Forked": "True", "X-Microsoft-Antispam-PRVS": "\n <MR2P264MB0737A307B5AFEB46834A31E8925F0@MR2P264MB0737.FRAP264.PROD.OUTLOOK.COM>", "X-MS-Oob-TLC-OOBClassifiers": "OLM:8882;", "X-MS-Exchange-SenderADCheck": "1", "X-Microsoft-Antispam": "BCL:0;", "X-Microsoft-Antispam-Message-Info": "\n k/DtkWoxt/GhSu3R1SHJ3IGsF1BTecCZdU8fjsHEP5rO/jd6S9XXOMeobcxf5id2UTojs+4xhGguVh+BXwxlbFaE0TzEkv9pw3cePuEFk7PDAbOQBpoCUWXIZCbX5Vw9QR+mFT6CpVqAcwl24I1h7kPosLy39k1NSaQzVUyhTVjLZHledPI3lKFKCUHxfcZVEsHo/wweQ9e1KYb3IzUww/VnhQ3n1d3BMg3cF7hRh4oTQ+AhtcUEW3DGPd05L56rOl4bZo1IlVYctpxKcFaJdzUKo9dsQ70zsqoER10qRuy1AanaQ17MkpPoV7jwOWeoPq8PtFK6SpN8gTq6s3piGJv/nOEVFwQod8ca42+l9n3Jk82PkHCiV1MpEomyx2bt", "X-Forefront-Antispam-Report": "CIP:255.255.255.255; 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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\nv1->v2: Use only for pci-vfio in pci_vfio_disable_notifier()\n\nRenata Saiakhova (1):\n librte_eal: rte_intr_callback_unregister_sync() - wrapper around\n rte_intr_callback_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/rte_eal_version.map | 1 +\n 5 files changed, 51 insertions(+), 1 deletion(-)" }