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[2604:1380:45e3:2400::1]) by mx.google.com with ESMTPS id 41be03b00d2f7-68221b75898si12138447a12.143.2024.05.29.16.48.19 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 May 2024 16:48:19 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel+bounces-194790-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) client-ip=2604:1380:45e3:2400::1; Authentication-Results: mx.google.com; arc=pass (i=1 spf=pass spfdomain=sina.com); spf=pass (google.com: domain of linux-kernel+bounces-194790-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-194790-linux.lists.archive=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id E3EB12843B8 for ; Wed, 29 May 2024 23:48:18 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 5FA8F1CB330; Wed, 29 May 2024 23:48:13 +0000 (UTC) Received: from mail115-95.sinamail.sina.com.cn (mail115-95.sinamail.sina.com.cn [218.30.115.95]) (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 8FFEC1802C4 for ; Wed, 29 May 2024 23:48:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=218.30.115.95 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717026492; cv=none; b=NIiV4kqV1SDliLT1IGRTu7bZ52scnTOfNy0bO2q1ME91QNW4q7pQ64CLEooO8VTFCVVDL64+eL+28FjzZNzZZw3vGC3iT+puCyjtEsF2384ryDeYPv5l9/32MPIVU+FDa/c3an1YBs3awcuPnZ9/VQPdo5N2fcZEr1afQljnrC0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717026492; c=relaxed/simple; bh=VPP80Y6bX7mpgJ2reko6KRR6cfiu4C/0yZT1T3uduEw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Qx+v44fAA+9OKlYfOliYghCAKJsfNhuWgnjwrM1nJ5kAH9vxU+i8+RcgQTwo5V/76BhlC/a3kSmBWHs072WWFwKbVPU752VME9VYay9d3lEZlVCi/sGAP18x2Q08KCy1bNkH6MjetSwfhS816W27WfXJZLNFK0SZo4xU9hFa+JI= 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=218.30.115.95 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: linux-kernel@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.