From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754651AbbDQQ2b (ORCPT ); Fri, 17 Apr 2015 12:28:31 -0400 Received: from mail-qg0-f54.google.com ([209.85.192.54]:33864 "EHLO mail-qg0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751652AbbDQQ23 (ORCPT ); Fri, 17 Apr 2015 12:28:29 -0400 Date: Fri, 17 Apr 2015 12:28:26 -0400 From: Tejun Heo To: Tetsuo Handa Cc: akpm@linux-foundation.org, davem@davemloft.net, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: [PATCHSET] printk, netconsole: implement reliable netconsole Message-ID: <20150417162826.GB16743@htj.duckdns.org> References: <1429225433-11946-1-git-send-email-tj@kernel.org> <201504180035.AIJ09349.SOFFHFtLOOQVMJ@I-love.SAKURA.ne.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201504180035.AIJ09349.SOFFHFtLOOQVMJ@I-love.SAKURA.ne.jp> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Sat, Apr 18, 2015 at 12:35:06AM +0900, Tetsuo Handa wrote: > If the sender side can wait for retransmission, why can't we use > userspace programs (e.g. rsyslogd)? Because the system may be oopsing, ooming or threshing excessively rendering the userland inoperable and that's exactly when we want those log messages to be transmitted out of the system. This will get log out as long as timer and netpoll are running which is the case under a lot of circumstances. Thanks. -- tejun