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=-2.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham 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 396CEC43381 for ; Mon, 18 Mar 2019 12:50:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0B9B72085A for ; Mon, 18 Mar 2019 12:50:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="tMZ+ZEPd" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727572AbfCRMub (ORCPT ); Mon, 18 Mar 2019 08:50:31 -0400 Received: from mail-pf1-f172.google.com ([209.85.210.172]:44296 "EHLO mail-pf1-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726612AbfCRMuY (ORCPT ); Mon, 18 Mar 2019 08:50:24 -0400 Received: by mail-pf1-f172.google.com with SMTP id a3so11182417pff.11 for ; Mon, 18 Mar 2019 05:50:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:date:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=8rHSP9iRmECbyQFvWEgH3WGzK3oktqWgDzA4VeVNadA=; b=tMZ+ZEPd8MyOFcLSjawDwBG3qwY1t8P+kKQhFAEdLiQ4infpocLSgxO1gaR0N25lUj mpeuwGKskVb9isi85KmO2QXfrWcRDRawglcCxe/wih+AWFjv0dVVkvgfJfbMOYidSDxd R5FWoLKuIl6bPhbrZw/o6MVY02UZl2Y1SFcLM6LaG4Hmg2F7vfXkXGjdJqmN1VwDqeAg uZm+gB8agMOe4cVIdaXiMo9pp8BvwbUJBH6YumRdNr3qwea8BdXQKnttRNSpz2cSPqwB WvNu2jsil4pXwf/9FihDMvsett0P9K3FbFiER6Ii4GcJ0cM1WlbbBkkGbjt3KwvV9mHD sjlQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:date:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=8rHSP9iRmECbyQFvWEgH3WGzK3oktqWgDzA4VeVNadA=; b=b1Z0hkIG9AnbYsRL7myBRvMspJ26wwwGLPEF1PHt7C+ppXiz5nBakt1IX2BZxVnRLo J2tOW5U2O1lO39b7lPYpyZnswbF+tMmPnLUydovFK+Hb9LlMgxnwzlc1wWr0SsT5ukaK 9Z+uRJrG/8Tm1X6GRmQmO78vuo8LDWCYW4nLbrW0oK6fOWE6u/pAoS0fHmOhm76FKOkm qwAUAG0rmKnmoeDNFNt0wR/c2kyFUB6Ps3HNcCQ2Ln7Hmi/3L++uG9SIWZNPLIerlyv8 UwZd3dy/SCanU+tWiLKtoO9vXqRPq5vDbUNl2uU7L633nnzvO9BNoiSiJT5ClcHrisJV H+9Q== X-Gm-Message-State: APjAAAUTyN/P8TFjzAheN/iAzzRd7uIeNBS7wPlm1CMyxIQsGrrCxAFK 7BbTgjBsMp7NEzisw4hDPrU= X-Google-Smtp-Source: APXvYqzuvYB1g+1aAscQ0IR/Nwl93d1KPrMtfh/Hb64OY6O6B0cDgQrmsvPdKiJEqqko18ACWzJXcA== X-Received: by 2002:a17:902:e50b:: with SMTP id ck11mr20006775plb.25.1552913423625; Mon, 18 Mar 2019 05:50:23 -0700 (PDT) Received: from localhost ([121.137.63.184]) by smtp.gmail.com with ESMTPSA id f192sm24643293pfc.180.2019.03.18.05.50.21 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 18 Mar 2019 05:50:22 -0700 (PDT) From: Sergey Senozhatsky X-Google-Original-From: Sergey Senozhatsky Date: Mon, 18 Mar 2019 21:50:19 +0900 To: Dmitry Vyukov Cc: Tetsuo Handa , Sergey Senozhatsky , Petr Mladek , Sergey Senozhatsky , LKML , syzkaller Subject: Re: [syzbot? printk?] no WARN_ON() messages printed before "Kernel panic - not syncing: panic_on_warn set ..." Message-ID: <20190318125019.GA2686@tigerII.localdomain> References: <2a48dee7-b649-65a4-be5d-8b3374013cee@i-love.sakura.ne.jp> <201903180527.x2I5RQVp009981@www262.sakura.ne.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.11.4 (2019-03-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On (03/18/19 13:32), Dmitry Vyukov wrote: > Wait, but isn't SYSLOG_ACTION_CONSOLE_LEVEL what we are looking for? > syzkaller knows about the syslog syscall: There is also SYSLOG_ACTION_CONSOLE_OFF, which disables logging. -ss