From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3F9EAC432C1 for ; Tue, 24 Sep 2019 14:24:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0337A21655 for ; Tue, 24 Sep 2019 14:24:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2437189AbfIXOYl (ORCPT ); Tue, 24 Sep 2019 10:24:41 -0400 Received: from mx2.suse.de ([195.135.220.15]:37886 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2389030AbfIXOYk (ORCPT ); Tue, 24 Sep 2019 10:24:40 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 32F38AE2D; Tue, 24 Sep 2019 14:24:39 +0000 (UTC) Date: Tue, 24 Sep 2019 16:24:38 +0200 From: Petr Mladek To: Steven Rostedt Cc: Daniel Vetter , Andrea Parri , SergeySenozhatsky , Sergey Senozhatsky , Brendan Higgins , Paul Turner , Peter Zijlstra , John Ogness , Thomas Gleixner , LinusTorvalds , Greg Kroah-Hartman , Theodore Ts'o , PraritBhargava , LKML Subject: Re: printk meeting at LPC Message-ID: <20190924142438.fjicbolo2xmgn4t7@pathway.suse.cz> References: <20190918012546.GA12090@jagdpanzerIV> <20190917220849.17a1226a@oasis.local.home> <20190918023654.GB15380@jagdpanzerIV> <20190918051933.GA220683@jagdpanzerIV> <87h85anj85.fsf@linutronix.de> <20190918081012.GB37041@jagdpanzerIV> <20190918081012.GB37041@jagdpanzerIV> <877e66nfdz.fsf@linutronix.de> <20190918164155.ymyuro6u442fa22j@pathway.suse.cz> <20190918124801.04fe999d@gandalf.local.home> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190918124801.04fe999d@gandalf.local.home> User-Agent: NeoMutt/20170912 (1.9.0) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed 2019-09-18 12:48:01, Steven Rostedt wrote: > On Wed, 18 Sep 2019 18:41:55 +0200 > Petr Mladek wrote: > > > Regarding SysRq. I could imagine introducing another SysRq that > > would just call panic(). I mean that it would try to flush the > > logs and reboot in the most safe way. > > You mean sysrq-c ? Sysrq-c is confusing because the NULL pointer dereference is reported. I meant a completely new sysrq that would just call panic() without an artificial noise. Hmm, sysrq is already using most of the keys. sysrq-c might be good enough after all. Best Regards, Petr