From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail114-240.sinamail.sina.com.cn (mail114-240.sinamail.sina.com.cn [218.30.114.240]) (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 E47AE161307 for ; Wed, 29 May 2024 23:48:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=218.30.114.240 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717026494; cv=none; b=C4JgfUfdgZLzq5wGLTAKG8sZx2/A7RK0FuOgroouXp5HsrA1DaSXSwaHKHKiLMWvsU054+gmxijptAXEbm9rbClOMy3jPtJaTSBOkYOXS8aldRdQ/F6+NmMeDAZ542PqRpY05UtjwSQo0/IB9tnLjN7RhZhG5WHhy7G3fM4BACk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717026494; c=relaxed/simple; bh=VPP80Y6bX7mpgJ2reko6KRR6cfiu4C/0yZT1T3uduEw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Tf7scDui6tTXD+Yu16vttYqaMV7bdbIbGI01jG9IFuYR0KDvv5eCw9yYOckJiQuWV0EfjjvBXghiwL5DqrCqdE0FJg7BOAKQHxOBrvjfCqLn63kwhKDpepvBrKvPIdIYHcadeF6ew17mTB/vRnPhmZvl7kGgUI83jOTgKtYh4Eo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sina.com; spf=pass smtp.mailfrom=sina.com; arc=none smtp.client-ip=218.30.114.240 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sina.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sina.com X-SMAIL-HELO: localhost.localdomain Received: from unknown (HELO localhost.localdomain)([116.24.9.5]) by sina.com (172.16.235.24) with ESMTP id 6657BEAB0000795F; Wed, 30 May 2024 07:47:57 +0800 (CST) X-Sender: hdanton@sina.com X-Auth-ID: hdanton@sina.com Authentication-Results: sina.com; spf=none smtp.mailfrom=hdanton@sina.com; dkim=none header.i=none; dmarc=none action=none header.from=hdanton@sina.com X-SMAIL-MID: 63944445089465 X-SMAIL-UIID: D3A3C44DE0B44A9891E0D3EAE79B62C1-20240530-074757-1 From: Hillf Danton To: syzbot Cc: edumazet@google.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, radoslaw.zielonek@gmail.com, syzkaller-bugs@googlegroups.com, vinicius.gomes@intel.com, vladimir.oltean@nxp.com Subject: Re: [syzbot] [net?] INFO: rcu detected stall in packet_release Date: Thu, 30 May 2024 07:47:45 +0800 Message-Id: <20240529234745.3023-1-hdanton@sina.com> In-Reply-To: <000000000000ae4d6e06199fd917@google.com> References: Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Wed, 29 May 2024 16:10:02 -0700 > syzbot has tested the proposed patch but the reproducer is still triggering an issue: > INFO: rcu detected stall in sctp_addr_wq_timeout_handler Feel free to read again the root cause [1] Vlad. [1] https://lore.kernel.org/lkml/20240528122610.21393-2-radoslaw.zielonek@gmail.com/ Adding the tested patch in the net tree now looks like a case of blind landing.