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 1344F354AC3; Fri, 17 Oct 2025 23:30:23 +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=1760743824; cv=none; b=Byxt3+2s3ex9FlzD4FMR2+tvZ73x3VuFR3iRNBK3hCK8qbiWKNYwt32Z3IzAidTPCiQW0+nUQCSJQjsSiRUKMzFrM72fD1//PIrq+TH3PocVPTFsOz5m+tyA/lYvQReXYmsMeNy5dTBvud3FWZyWQ7yrWHG7vlYRa7MLxwkaHbQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760743824; c=relaxed/simple; bh=O43bnzlHzYWF3tohh8BdhIl4bku7eCG5WrTgzFJ6OQ0=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=fTpH4N/Bay4DXQI+AUVkBjm3Vri4cCf2fOFC/JDDhlmzHlVf3c2cOHvHXXHvuAolAd5dvMpG6MpCFZ8k+GKzXJq+Gdwzt1X4abKy3baiyeRPu25RAaUC2h7RDSE8Xn4mrmZddC03wIGx98ogedyAbialoaR/ndiIfLW01rVyX5M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Pb1OVnQb; 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="Pb1OVnQb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 79501C4CEE7; Fri, 17 Oct 2025 23:30:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760743823; bh=O43bnzlHzYWF3tohh8BdhIl4bku7eCG5WrTgzFJ6OQ0=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=Pb1OVnQbUFYdrBvUhhnGQWX+KiAMzNE7WQEaZeNxlqLbIgqQKIRRVhoD/oknE5+at /GSEs3/KKeVHhH3OosMBCoWH3enT5XgxODaD+6h0oOfFGTryPQ+4/eFQ7Q6SHmqVCE xiK/BLpyNqn3qY77/eGZksFSAAkjFYudcnZm9et3QtGxi59fxpSH316lZHNr5BKglc 0SoulIJEncLPxLUNYyLl7KNAe76TULCn0N3wfxvYkVncRPU0I+4dH0SnTep87MuRGY VWK1yOdzPlgLn6l4oY26FmgY4uNoKIo2OaM+mRkHWKgxfOvtJCfEqUuHI/PmRA7/8h I3vRMezMKuTFw== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 34B0D39EFA5D; Fri, 17 Oct 2025 23:30:08 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [v4 PATCH net] net: enetc: fix the deadlock of enetc_mdio_lock From: patchwork-bot+netdevbpf@kernel.org Message-Id: <176074380701.2822953.14692637268674439157.git-patchwork-notify@kernel.org> Date: Fri, 17 Oct 2025 23:30:07 +0000 References: <20251015021427.180757-1-jianpeng.chang.cn@windriver.com> In-Reply-To: <20251015021427.180757-1-jianpeng.chang.cn@windriver.com> To: Jianpeng Chang Cc: claudiu.manoil@nxp.com, vladimir.oltean@nxp.com, wei.fang@nxp.com, xiaoning.wang@nxp.com, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, alexandru.marginean@nxp.com, imx@lists.linux.dev, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Wed, 15 Oct 2025 10:14:27 +0800 you wrote: > After applying the workaround for err050089, the LS1028A platform > experiences RCU stalls on RT kernel. This issue is caused by the > recursive acquisition of the read lock enetc_mdio_lock. Here list some > of the call stacks identified under the enetc_poll path that may lead to > a deadlock: > > enetc_poll > -> enetc_lock_mdio > -> enetc_clean_rx_ring OR napi_complete_done > -> napi_gro_receive > -> enetc_start_xmit > -> enetc_lock_mdio > -> enetc_map_tx_buffs > -> enetc_unlock_mdio > -> enetc_unlock_mdio > > [...] Here is the summary with links: - [v4,net] net: enetc: fix the deadlock of enetc_mdio_lock https://git.kernel.org/netdev/net/c/50bd33f6b392 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html