Received: by 2002:a25:824b:0:0:0:0:0 with SMTP id d11csp1741297ybn; Thu, 26 Sep 2019 01:16:52 -0700 (PDT) X-Google-Smtp-Source: APXvYqyCk/yC6+i0U9X5YfpNS0mebeJFEuu9ycKYanrwWOC5mJIY7gRCoOvlAlrcQdNhy98THwYa X-Received: by 2002:a50:b0c5:: with SMTP id j63mr2263370edd.90.1569485812297; Thu, 26 Sep 2019 01:16:52 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1569485812; cv=none; d=google.com; s=arc-20160816; b=frjyv6MPPGks2Q9GFNhmdv6nV1HfK0b3XG6F0r5MrRJv40hzWoxDy1q5J7NUpjxD7b vYADDgeQb70NB1eX+0opnxbz1NyVZ/IeIcp47jQCnD6EnIswz3kDwJPoZuej2zPce7cv OOiIHdVgtboqsOXDylXR+RO1PXYr33+yCWqUmwBmqWFbDc97IIkEv7NfZ8xt2rTiDH/h sFr0e8+dMPZ1GxwiD9IMrWhW+Kof4rK3jNgUN8UmgH+kc78+4fkDzoqMEDBlC0zFFcwW I1C7v1ejxuftbApt7smR8hqMlB5KejcsUPzP9xAzWSQXoCe8T1ddz3mTwxRo7SU7P1Sw e/dQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=JosolS+VcuVdd/OtmCAMH7wbOchSGIaX5XbHWBAScsI=; b=NybPsuM7v7Y2cVr9x0uNUjqGiOC8RqOOd1ppT1Fwox8FffRcEvp84S3tutYNvcqm1/ MbmzaB8JU43LOv2MjlCdFlk8oLLbseHL+BmnsGoTa23mscCgKsAaXTar2cf2UA0ybj+S xpzi9KR7Nsik/jN+1isYJhuRGn4nu5+rdOsGsOy2YZ74dOYaI3KnyRrJFaUP9dO3WKSi VnHzPA1aPEcUVxpX7UAJoRbvCo+EoN0CkwBI0ChAAJHN7Kx+eiYD1GHiePA6+xu+dtdo tqQYRt5VlI9uZUfAhZ/hoGnmbe8VFbctBbDSFr11madI5lQvxilsridmYsO37ksjnmSj KBGw== 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 ox13si679238ejb.0.2019.09.26.01.16.29; Thu, 26 Sep 2019 01:16:52 -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 S2437121AbfIXOYl (ORCPT + 99 others); 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