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 E26A72DFA32; Sun, 14 Sep 2025 19:00:18 +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=1757876420; cv=none; b=oEdfzGRtMLqRGSxFPrSCIGUOeEHFMe03Rqs9UDfUJBEZ6rZd0dTfZrNBW7sJMHmbJjXiNCVInnGsXb078kYCEPuwhMS00oAgktrDy5A6RDUZByXzl6RjMsd2lAurcUVg7KCMxa0nqzCy5bgc+5dFTRFAJ/NKFqTtPzBIlZdCntE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757876420; c=relaxed/simple; bh=HXWTvZ0Rfo/S/tKkpVHE0VLWYEThtftZvmLT4n48M80=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=sKZYao0agPbp0BH/66x0QPrYmnUx6h56awpNx/BZfK428VwORVeKHjrla7T4MLxEM87jB4m38YKY0nBAZFsm3E+pzQZiryX4pDTyxbzndmeeg5OJAAmrf8PbY9jlOBN7u0zQFvEOPlmMKhcnuMOfZtgN9w063yO2XWHy2DsdQ+0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Fba/28Ew; 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="Fba/28Ew" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 76DF2C4CEFA; Sun, 14 Sep 2025 19:00:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1757876418; bh=HXWTvZ0Rfo/S/tKkpVHE0VLWYEThtftZvmLT4n48M80=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=Fba/28EwLh2TRwkN1ZwmwMKwxkikPrdlXpJJzBHqHRg3oq/Kf5N8arIACMg1IeNNq xLp0oytxQHtqtHwsOLhevzOOOUDes+fclsXbaSK6JJTSWd8OT5TRrIQ0rg+UvZ0s/a w8YiHHlv4t6CU41zaM+7/pWFMti9XqeTPJ9cycsof+ORyQx3YMv2RAwHifmc2+U5uU AsSWHIeqxGcH/qPlcoBAd7ou4+DVLcinzYomhpze+x/EcHz3IoQh+0UknF2KUUkesi xD+hO8KecAPTna8zK88drNO3UjGj1tqv/r7VprCS0R2pqwYpGAGKcrYleSwGG+xrK7 AUACMWhWFhOAg== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 70C8139B167D; Sun, 14 Sep 2025 19:00:21 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH v4 next-next] net/cls_cgroup: Fix task_get_classid() during qdisc run From: patchwork-bot+netdevbpf@kernel.org Message-Id: <175787642000.3528285.12140096607438105996.git-patchwork-notify@kernel.org> Date: Sun, 14 Sep 2025 19:00:20 +0000 References: <20250902062933.30087-1-laoar.shao@gmail.com> In-Reply-To: <20250902062933.30087-1-laoar.shao@gmail.com> To: Yafang Shao Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, daniel@iogearbox.net, bigeasy@linutronix.de, tgraf@suug.ch, paulmck@kernel.org, razor@blackwall.org, netdev@vger.kernel.org, bpf@vger.kernel.org Hello: This patch was applied to netdev/net-next.git (main) by Jakub Kicinski : On Tue, 2 Sep 2025 14:29:33 +0800 you wrote: > During recent testing with the netem qdisc to inject delays into TCP > traffic, we observed that our CLS BPF program failed to function correctly > due to incorrect classid retrieval from task_get_classid(). The issue > manifests in the following call stack: > > bpf_get_cgroup_classid+5 > cls_bpf_classify+507 > __tcf_classify+90 > tcf_classify+217 > __dev_queue_xmit+798 > bond_dev_queue_xmit+43 > __bond_start_xmit+211 > bond_start_xmit+70 > dev_hard_start_xmit+142 > sch_direct_xmit+161 > __qdisc_run+102 <<<<< Issue location > __dev_xmit_skb+1015 > __dev_queue_xmit+637 > neigh_hh_output+159 > ip_finish_output2+461 > __ip_finish_output+183 > ip_finish_output+41 > ip_output+120 > ip_local_out+94 > __ip_queue_xmit+394 > ip_queue_xmit+21 > __tcp_transmit_skb+2169 > tcp_write_xmit+959 > __tcp_push_pending_frames+55 > tcp_push+264 > tcp_sendmsg_locked+661 > tcp_sendmsg+45 > inet_sendmsg+67 > sock_sendmsg+98 > sock_write_iter+147 > vfs_write+786 > ksys_write+181 > __x64_sys_write+25 > do_syscall_64+56 > entry_SYSCALL_64_after_hwframe+100 > > [...] Here is the summary with links: - [v4,next-next] net/cls_cgroup: Fix task_get_classid() during qdisc run https://git.kernel.org/netdev/net-next/c/66048f8b3cc7 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html