From owner-freebsd-hackers@FreeBSD.ORG Tue Jul 10 15:30:57 2012 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id AF396106564A for ; Tue, 10 Jul 2012 15:30:57 +0000 (UTC) (envelope-from yanegomi@gmail.com) Received: from mail-gh0-f182.google.com (mail-gh0-f182.google.com [209.85.160.182]) by mx1.freebsd.org (Postfix) with ESMTP id 678928FC12 for ; Tue, 10 Jul 2012 15:30:57 +0000 (UTC) Received: by ghbz22 with SMTP id z22so121679ghb.13 for ; Tue, 10 Jul 2012 08:30:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=5rLgijPU9LIhPLwu7n1km3eBP8FWv/pgCO3fEEY4jc8=; b=OdQXZWxhqZ2mZyDgI4onSJY3DE5OjDZi6MzsO/4WDUfuCCmakaLwACK0FmNZu9ebWb 3iA3aNhn3lrs9ekxUuicanOp1UlK9yorDJNAXSuFf7TU0p6Q0JpgyVfiCqgfz3e4X/yG 1Ocz2s4fT9oWOa6bE39JwVaZEktkaUKjMSYCtBYcKdjPt7KiF1prTmS6fapIKn3mClJU mQX+GjJmU456tHJqQxxxHia1kjvQRIJs2fWQoyZJAI7s79s7rUXXiPHqQ4kB7prndqKP cIt90ZY3YBIJEkMfe3BmFf8mM1yg/H1De6BAXi6VXj9lpfVOxtCQtg19jKuGpVKmJGNP KkWQ== MIME-Version: 1.0 Received: by 10.60.3.102 with SMTP id b6mr46492488oeb.35.1341934250784; Tue, 10 Jul 2012 08:30:50 -0700 (PDT) Received: by 10.76.84.7 with HTTP; Tue, 10 Jul 2012 08:30:50 -0700 (PDT) In-Reply-To: References: <2E148ED4-F2E6-4B3D-99D8-C84E4E11F0F4@my.gd> Date: Tue, 10 Jul 2012 08:30:50 -0700 Message-ID: From: Garrett Cooper To: Wojciech Puchar Content-Type: text/plain; charset=ISO-8859-1 Cc: "freebsd-hackers@freebsd.org" Subject: Re: kernel: abra-kadabra X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Jul 2012 15:30:57 -0000 On Tue, Jul 10, 2012 at 7:36 AM, Wojciech Puchar wrote: > > > On Tue, 10 Jul 2012, Damien Fleuriot wrote: > >> >> On 10 Jul 2012, at 12:10, Wojciech Puchar >> wrote: >> >>> this is what i've got from kernel (same visible after dmesg of course) >>> >>> >>> Jul 9 08:56:53 ... kernel: <<66<>p>ipd6id >p336i65d0 43432 >>> ((hh6ttt6p2d4 )(t,p dht)t,pu di)du,i ud1i 0d14 80:10 e44x88i::t eex die >>> txoiedtn eo dn sosini ggnsnaalilg n1a1l >>> Jul 9 08:56:53 .. kernel: 1 >>> Jul 9 08:56:53 ... kernel: >>> Jul 9 08:56:53 ... kernel: <<66>>11 >>> Jul 9 08:56:53 ... kernel: 1 >>> Jul 9 08:56:53 ... kernel: >>> >>> everything before and after seems usual. >>> >>> when reading every second letter it SEEMS to make more sense but still >>> not much. >>> >>> What it is? >>> >> >> You're seeing several messages at jumbled together, or your message and >> other parts of the buffer. >> >> Either way, you can see the word "signal" there ;) >> > i think it was httpd (probably PHP trash) crashed with sig11 but want to be > sure. > > httpd rarely do crash... Strange i have ports rather up to date and no KNOWN > vulnerabilities are according to portaudit output. > > how can i prevent mixing kernel messages? > > i have > > options PRINTF_BUFR_SIZE=256 # Prevent printf output being > interspersed. > > in kernel config Increasing that value [to 1k, 2k, etc] will help at the cost of some more memory usage, but it won't fix the problem. The issue should be less prominent in 9.x+. HTH, -Garrett