From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 4DA5D46C49; Wed, 30 Jul 2025 07:07:19 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id D11F240668; Wed, 30 Jul 2025 07:07:18 +0200 (CEST) Received: from mail-pf1-f181.google.com (mail-pf1-f181.google.com [209.85.210.181]) by mails.dpdk.org (Postfix) with ESMTP id 1B08A4025E for ; Wed, 30 Jul 2025 07:07:17 +0200 (CEST) Received: by mail-pf1-f181.google.com with SMTP id d2e1a72fcca58-747e41d5469so6858249b3a.3 for ; Tue, 29 Jul 2025 22:07:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=uetpeshawar-edu-pk.20230601.gappssmtp.com; s=20230601; t=1753852036; x=1754456836; darn=dpdk.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=OOVLq4LIkeQwRFOTJyk5/7dxT4AVmK7qMvefoffPBFs=; b=CyCotyqfPqiKJ7RgjktOtrfGlso7wVGUN67I+d2SuW9Br6dJq3dHpcmmAOijhZUco2 zAC/BeZd27pN7BxkEpDyoeHlcXPB7A/A213GsxQBt9S50j6eniQy/83eWY6GrWlFpgZ6 1RhOOXwn0ixAihUjmCWIqBfTS0SZhvOVcc7jwmjjDyE2IlxYkIGhBUPl7Zc6duHZqIme gYNJRIbI7YZlEnX17jBIAG6HbDrB4rWt0B6cmh4yzSKESNDAnMnnqDM6bgIzqS4esukG SEokusb6IMo3EozjOVX25cHAu0mCZW66uvXTnYEFUS5sck678addgW4yIMPhz/V+7827 ovIw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1753852036; x=1754456836; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=OOVLq4LIkeQwRFOTJyk5/7dxT4AVmK7qMvefoffPBFs=; b=ZNn4+JsMnUykBUbeyMWNnYHqZMk4hS5XGmPyj4D1sAIkpq+jiQ0aXHk/HcY9lKlchc CVLdoOfmUy83XuZXC9FCvv+HqRsUQ4JDfI4oJKqkyMMEZFDrfRZmqcz+vMlou570H/1v t9BGk5Yds9batrGkMpBPxyOkyqAuIKSNB16gtCPghAOtdCatgYGXj2SLwGpf6zOtdR03 1HjRIL4wKFOX2FBahiMQwfzD1ayAmJKbajZGZRChJsz3UlOuaNmighknMOht4lqKw6CG T/sJXPsqIXM6s5ZVzYVFnLu2L6OALV8fxPw7/jf5XLM/oxdWIW+JX6YKw9d72bXSE1Bb XCQw== X-Gm-Message-State: AOJu0Yzsf8eukDuc1lsPS5U3m9m+gC8IZNe/4IhAkXJYtV0guAyglNwU UpZelNFaaFKzLe55wr3VfsRJg0HLeataXOcfiS7eQwBjND4dHDIg/4vuHB0QOfwuZQ4= X-Gm-Gg: ASbGncuMp5MDO6LrqVTSQuhGjOKp3+NnQKtLneKnpQ1o+0Rzua8qrQlds9AuBRMPPhS DuFm9t9Zdd9bQAtL6iignmZo+qqUG5b5aQdwE2+SagX97FSCxTHbpEHj6oHgvHem/XyQGnID3Rn ycfd3IZ9bTH22oF8D1gBLbXSAy2Ttk7PcI+n8l9lQZonMidLyim89ZcfULR0oeXxQ67aA+NKfkX /UMknH892WQpSFmtQ/VqKv7eG8sd0nMvCEQYsTjc3kWbGC7a8XkwIlHn+aNkZhZ1SgF0p9074TN 6Gw0ouOLAk4dL9BN4e+8rVHNiWV1PIp8KmkPbumHZezZO3lvlrFlF7IHI3yhvwJCyE0ATrtGW6J LpUpU74rSu0ENde+JAJHcI7RvREz7qimKag25QcopB2rpuk/S X-Google-Smtp-Source: AGHT+IGr9xs4kNDiUXJYLSFSKi2aZzD5C0l2ANoUZNrqajOWC1HHeLtgu+4NfX2i28c+Mk8pqmgYiw== X-Received: by 2002:a05:6a00:844:b0:75f:7a4d:ea11 with SMTP id d2e1a72fcca58-76ab2946b13mr2680323b3a.11.1753852036076; Tue, 29 Jul 2025 22:07:16 -0700 (PDT) Received: from localhost.localdomain ([64.62.143.197]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7640b3d3d3csm9515124b3a.111.2025.07.29.22.07.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Jul 2025 22:07:15 -0700 (PDT) From: Khadem Ullah <14pwcse1224@uetpeshawar.edu.pk> To: stephen@networkplumber.org, thomas@monjalon.net, ferruh.yigit@amd.com, andrew.rybchenko@oktetlabs.ru Cc: dev@dpdk.org, stable@dpdk.org Subject: Re: [PATCH] [PATCH v4] lib/ethdev: fix segfault in secondary process by validating dev_private pointer Date: Wed, 30 Jul 2025 01:07:02 -0400 Message-ID: <20250730050702.74381-1-14pwcse1224@uetpeshawar.edu.pk> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250729143420.0fd7b627@hermes.local> References: <20250729143420.0fd7b627@hermes.local> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 Hi Stephen, Many thanks for diving deeper into the issue and sharing the insights. I agree. given that the primary tears down all the devices on exit, the secondary is left with dangling pointers and inconsistent state. Without a mechanism to notify or synchronize that teardown, I think it is the only option for the secondary to exit immediately, without attempting any cleanups, once it detects the primary has exited. Best regards, Khadem