From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 52D601F5827 for ; Wed, 26 Mar 2025 17:55:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743011711; cv=none; b=tnAiR2siRkBZ4Nmhgzsg2P8j8bVlVcJmmxynG3i1V1EVxfxyPhMp2/hOLBwUfzK6406Niyp6f98fefSHAmM6yno9KT/bmloLW1GVUly0aJ3GX2OBHcDDdfPFoioC40iT6nmMOUP7u0OQRD1ivTVt/+tgqg8IEDNLsM3Q6h8JJPo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743011711; c=relaxed/simple; bh=AVHEHKATUT/KwKmaqVB/Mu34DlOdeMnULQDhnZrAImE=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=XPyWy5bad8JrvJHpMTdDD0hnsRn+6P8fAGH8dwbS8pEWz0cbtq6ZQVfe95rpImwZZmmEGP7xS7sIE657Qszr0snmEMI4Y+2C3TAQCj/jJYS35JRjMnVcZbN/ZBe0c5g9SzVZNadU5tD1om9sivbCZ4HVifL+H/0PPDjCjMTpEL8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ppubn3R+; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ppubn3R+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C4C1AC4CEE2; Wed, 26 Mar 2025 17:55:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1743011711; bh=AVHEHKATUT/KwKmaqVB/Mu34DlOdeMnULQDhnZrAImE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ppubn3R+DdOUtCE2r3tcb4A/5aBJUj/Z59B5RJxnP8MNrg8cTyyPGPn3q/7QiXkiO 64rs5GUEaYaeQWA0/t9Oa6g4vzmQG17iKGsDFhOxTv2u0XLG+MayPpEuL4jIMWc87n eMfCYhZVIgZxHQ7cyDG14rI5fyOh3ESXAp5xfRzhGW8JrrIgnjuhyJ3ucMuw7WiNFD 2CkPWr3gQpVvkdoAc3KZaFMZqegnvYPjXCv/ANTabYAWzx3v2BzLAxnr8PM+uUAXbm nzTlaJUTSYhhAQJz7PZtS9kI98j4yNtu9JHCFO7YUPvucmfyAZntQxir4DnMnPXwaN 3CsIvbb05x7UQ== From: Sasha Levin To: stable@vger.kernel.org, florian.fainelli@broadcom.com Cc: Sasha Levin Subject: Re: [PATCH stable 5.15 v2 1/2] net: openvswitch: fix race on port output Date: Wed, 26 Mar 2025 13:55:07 -0400 Message-Id: <20250326132132-157910064b9f9bd2@stable.kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250326155856.4133986-2-florian.fainelli@broadcom.com> References: Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit [ Sasha's backport helper bot ] Hi, Summary of potential issues: ⚠️ Found follow-up fixes in mainline The upstream commit SHA1 provided is correct: 066b86787fa3d97b7aefb5ac0a99a22dad2d15f8 WARNING: Author mismatch between patch and upstream commit: Backport author: Florian Fainelli Commit author: Felix Huettner Status in newer kernel trees: 6.13.y | Present (exact SHA1) 6.12.y | Present (exact SHA1) 6.6.y | Present (exact SHA1) 6.1.y | Present (different SHA1: 644b3051b06b) Found fixes commits: 47e55e4b410f openvswitch: fix lockup on tx to unregistering netdev with carrier Note: The patch differs from the upstream commit: --- 1: 066b86787fa3d ! 1: 3e36758ea4208 net: openvswitch: fix race on port output @@ Metadata ## Commit message ## net: openvswitch: fix race on port output + [ Upstream commit 066b86787fa3d97b7aefb5ac0a99a22dad2d15f8 ] + assume the following setup on a single machine: 1. An openvswitch instance with one bridge and default flows 2. two network namespaces "server" and "client" @@ Commit message Reviewed-by: Simon Horman Link: https://lore.kernel.org/r/ZC0pBXBAgh7c76CA@kernel-bug-kernel-bug Signed-off-by: Jakub Kicinski + Signed-off-by: Carlos Soto + Signed-off-by: Florian Fainelli ## net/core/dev.c ## @@ net/core/dev.c: static u16 skb_tx_hash(const struct net_device *dev, } if (skb_rx_queue_recorded(skb)) { -+ DEBUG_NET_WARN_ON_ONCE(qcount == 0); ++ BUILD_BUG_ON_INVALID(qcount == 0); hash = skb_get_rx_queue(skb); if (hash >= qoffset) hash -= qoffset; --- Results of testing on various branches: | Branch | Patch Apply | Build Test | |---------------------------|-------------|------------| | stable/linux-5.15.y | Success | Success |