Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753047AbdI1M3C (ORCPT ); Thu, 28 Sep 2017 08:29:02 -0400 Received: from merlin.infradead.org ([205.233.59.134]:53348 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752833AbdI1M3A (ORCPT ); Thu, 28 Sep 2017 08:29:00 -0400 Date: Thu, 28 Sep 2017 14:28:49 +0200 From: Peter Zijlstra To: Sergey Senozhatsky Cc: "Levin, Alexander (Sasha Levin)" , Sasha Levin , Thomas Gleixner , Ingo Molnar , "linux-kernel@vger.kernel.org List" , "pmladek@suse.com" , "sergey.senozhatsky@gmail.com" , "rostedt@goodmis.org" Subject: Re: sched: serial port lockdep warning when offlining CPUs Message-ID: <20170928122849.eesre6s2jadovq5j@hirez.programming.kicks-ass.net> References: <20170928093847.zgcgvxb7ajiaywbr@hirez.programming.kicks-ass.net> <20170928103032.GA2380@jagdpanzerIV.localdomain> <20170928113607.GB30818@jagdpanzerIV.localdomain> <20170928114528.wilknwkyjecqrcaa@sasha-lappy> <20170928120532.cjidduvjj5xygaid@hirez.programming.kicks-ass.net> <20170928120722.ir5tcclsg336ou2n@hirez.programming.kicks-ass.net> <20170928121521.GD687@jagdpanzerIV.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170928121521.GD687@jagdpanzerIV.localdomain> User-Agent: NeoMutt/20170609 (1.8.3) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 323 Lines: 9 On Thu, Sep 28, 2017 at 09:15:21PM +0900, Sergey Senozhatsky wrote: > > I'll repost my patches now; otherwise I'll forget again anyway. > > #define printk printk_deferred > > should also do the trick and... make the kernel great again! :) That makes the kernel die silently, instead of first telling me wtf happend ;-)