Received: by 2002:ac0:a582:0:0:0:0:0 with SMTP id m2-v6csp2970049imm; Fri, 19 Oct 2018 02:53:41 -0700 (PDT) X-Google-Smtp-Source: ACcGV623RdsJ9ORuM7cMYPgt4lviMb9HspR9zezhS4ZcODgvKRvfiG3vIZLQhLSrGFGF5gslTXdG X-Received: by 2002:a17:902:22a:: with SMTP id 39-v6mr33872858plc.267.1539942821816; Fri, 19 Oct 2018 02:53:41 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1539942821; cv=none; d=google.com; s=arc-20160816; b=KvofSUW5InqCjnY5JjBASUn2uGcvT+Hmhm6bR40oAN2uarPpV1ThfDnTosMrX4mK8x DTZmcFMepvRLehg9cor9HKQa4uh54xOCaFt315PUcNjgBwVHg7UQprdfQyz6vDvr1XeI 4HwURVVTbHvz02mFUQhRyRwFQw/YUVgmJxs3YA4wtOUCcs9XKot8RRjtvkWjeE80DMM0 PGMu/kOre81Mg6ZEN2EJvixzkc7R6JV3Cd2hNXXRVlut7pHyg0VXUANlDJ39q+6P5VR+ joZ/CHImDd2TdXeF6QX/x+SwHf38BbvwvolDO9F1xR+9aPH2enZIMREO9WEjmy48ARmr 7UNw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:to:subject; bh=7r4B0v2hD8htDQh2tCZSh/O/lLanj+RKpNQnvimlb64=; b=oGj97menr1QH7dqUYvQsPwcvTtQ1Rtijr495SVYNjtcZSKEBMAxE8BURqNBOao494d ioqKuO1W8LDB96dJuwODBjr6f2ZrLL3qARu+kNQcD7gfHjhjoX9xiB8QOVR4s1AKbHfw cHIGivuasWEv/HSTpLNeSyAFCq3L0gUXOaM2gMorcuoI4/10YW6LP3c/2Qde60CBvr+S WmgOA6QYEyffl+UPy8cpZaHrhH66/5eRcundD4/BR2eauAskVNPP9QZTeAyGqq3cTtkh SUhVs/BNcIiOWBkvPm3oHd5RY/xbz5kiGCnEm0A8viJ/Gn3Q84m7m7HXSiR28a0HhXCD 82WA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f23-v6si22237904pfn.85.2018.10.19.02.53.26; Fri, 19 Oct 2018 02:53:41 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727158AbeJSR6V (ORCPT + 99 others); Fri, 19 Oct 2018 13:58:21 -0400 Received: from mx2.cyber.ee ([193.40.6.72]:43070 "EHLO mx2.cyber.ee" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726690AbeJSR6V (ORCPT ); Fri, 19 Oct 2018 13:58:21 -0400 Subject: Re: netconsole warning in 4.19.0-rc7 To: Dave Jones , Cong Wang , LKML , Linux Kernel Network Developers References: <20181017034047.nrhstc3b4wzevnri@codemonkey.org.uk> <20181017035038.czaqown24rnjn2pw@codemonkey.org.uk> <20181018145922.ytqxvdihp3iqounl@codemonkey.org.uk> From: Meelis Roos Message-ID: Date: Fri, 19 Oct 2018 12:51:38 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: <20181018145922.ytqxvdihp3iqounl@codemonkey.org.uk> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: et-EE Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > > > I took another look at that error path. Turns out this is all we need I > > > think.. > > > > With this patch applied on top of 4.19-rc8, I stll get the warning: > > > > [ 13.722919] WARNING: CPU: 0 PID: 0 at kernel/softirq.c:168 __local_bh_enable_ip+0x2e/0x44 > > It's going to be a couple days before I get chance to get back to this. > Did the previous patch in this thread (without the _bh) fare any better? Tried it with rcu_read_unlock() instead, still the same. -- Meelis Roos