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Mon, 11 Dec 2023 20:25:27 -0800 From: Artemy Kovalyov To: CC: Thomas Monjalon , , Anatoly Burakov , Maxime Coquelin , David Marchand Subject: [PATCH 3/5] ipc: fix mp channel closure to prevent message loss Date: Tue, 12 Dec 2023 06:25:14 +0200 Message-ID: <20231212042517.164353-4-artemyko@nvidia.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231212042517.164353-1-artemyko@nvidia.com> References: <20231212042517.164353-1-artemyko@nvidia.com> MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF000042AD:EE_|SA0PR12MB4383:EE_ X-MS-Office365-Filtering-Correlation-Id: 1e15532b-5541-40c0-37a0-08dbfaca6597 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: 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 X-Forefront-Antispam-Report: CIP:216.228.118.233; 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Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF000042AD.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA0PR12MB4383 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org This commit addresses an issue related to the cleanup of the multiprocess channel. Previously, when closing the channel, there was a risk of losing trailing messages. This issue was particularly noticeable when broadcast message from primary to secondary processes was sent while a secondary process was closing it's mp channel. In this fix, we delete mp socket file before stopping mp receive thread. Fixes: e7885281ded1 ("ipc: stop mp control thread on cleanup") Cc: stable@dpdk.org Signed-off-by: Artemy Kovalyov --- lib/eal/common/eal_common_proc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/eal/common/eal_common_proc.c b/lib/eal/common/eal_common_proc.c index 728815c..d34fdda 100644 --- a/lib/eal/common/eal_common_proc.c +++ b/lib/eal/common/eal_common_proc.c @@ -593,7 +593,7 @@ enum async_action { } static void -close_socket_fd(int fd) +remove_socket_fd(int fd) { char path[PATH_MAX]; @@ -672,9 +672,9 @@ enum async_action { if (fd < 0) return; + remove_socket_fd(fd); pthread_cancel((pthread_t)mp_handle_tid.opaque_id); rte_thread_join(mp_handle_tid, NULL); - close_socket_fd(fd); } /**