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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 24FCCC7619A for ; Sun, 9 Apr 2023 01:56:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229451AbjDIB4R (ORCPT ); Sat, 8 Apr 2023 21:56:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58348 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229436AbjDIB4Q (ORCPT ); Sat, 8 Apr 2023 21:56:16 -0400 Received: from mail-pj1-x102f.google.com (mail-pj1-x102f.google.com [IPv6:2607:f8b0:4864:20::102f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4CE794C38 for ; Sat, 8 Apr 2023 18:56:14 -0700 (PDT) Received: by mail-pj1-x102f.google.com with SMTP id q15-20020a17090a2dcf00b0023efab0e3bfso4441641pjm.3 for ; Sat, 08 Apr 2023 18:56:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1681005373; h=content-transfer-encoding:in-reply-to:mime-version:user-agent:date :message-id:from:cc:references:to:subject:from:to:cc:subject:date :message-id:reply-to; bh=tQQY8IybG7Zg8B8RwfRlPWMhUE/ejDqdO1wvDK+Ue1A=; b=JKHhIiST2Pu6mApi24cgX6QJrczg44w8+pEEjWloHkqF7HqHjoqfsWbLqeOcr6gUTw JgkIvDdnTqRx/SzBO0nKQwQRdIi7UXAnhaRHVB5xFDKg9l//ODV/WZa67zdEf0C3Bmyc y6pWfZURTQhj/LvtO5qAVPlYMnEZ3mAu7AJKBJPb4jhk+mSVrRRWPtoPKsDvUALzzLpj xmbo920CY3H3g3oJbwp/hU/Qn4dAxwyg6ZY84vh5yDG+MwpU+MDHDH5w8tWKyS2PFT35 X7xjUmF5FiqU5rnnp1i6UpUU8J0Kl9LSwGECKSHpJNVeZl2mX5VZI1+FGpvWFvT8TwYs sezQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1681005373; h=content-transfer-encoding:in-reply-to:mime-version:user-agent:date :message-id:from:cc:references:to:subject:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=tQQY8IybG7Zg8B8RwfRlPWMhUE/ejDqdO1wvDK+Ue1A=; b=o1pJ8GTYYr1F/TeeugYL65ejYQCEOtake7L+x6cNjHQETS/KOXAP39+j2RnqjUGYzg uIlZiNErRgbwRnWGgGV8hOEoHjfmXx2fJU3UZaVZhR534UaAscGpFZKfRwbSqYBb0PSg EyROSm2eT+WUZ94fnh6lsEFfPTl7XoqLtjWzUlZBsSjfASw3r27GgucrYx/+gKXs3Zqd 5ZMSdmFwDNnNuSYeSTLnsz5FTo+oe2Gab6ZgBWzXGMOF5BGJMd+cOr2kmLK7noIy243Z Dq4bB9E+cIH03g0zGofRtGi0nLvTmyN1xUFJk5ZZ57mf3UvM7Y481qkHh+GnQbXlqR9D 3AVg== X-Gm-Message-State: AAQBX9fAruiVmR+szzHmuBRLBwa9NwyGhnFcT9fXYZ6XBKI82tS72DSW DrFUMGKpKxAhnNBiw1P1QB+wov6rwY0= X-Google-Smtp-Source: AKy350aYA5gQZX+rEE71jeZGJrrgVrD8ATOS6aUI3wx5zT+GpQ12g6hyIFOjNmz309lTiPgGsU+XMw== X-Received: by 2002:a17:90b:3847:b0:246:696f:b1f1 with SMTP id nl7-20020a17090b384700b00246696fb1f1mr6325681pjb.6.1681005373243; Sat, 08 Apr 2023 18:56:13 -0700 (PDT) Received: from [10.1.1.24] (222-154-151-112-fibre.sparkbb.co.nz. [222.154.151.112]) by smtp.gmail.com with ESMTPSA id j3-20020a17090adc8300b002369d3b282csm3327276pjv.40.2023.04.08.18.56.09 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sat, 08 Apr 2023 18:56:12 -0700 (PDT) Subject: Re: core dump analysis, was Re: stack smashing detected To: Geert Uytterhoeven References: <4a9c1d0d-07aa-792e-921f-237d5a30fc44.ref@yahoo.com> <30a1be59-a1fd-f882-1072-c7db8734b1f1@gmail.com> <39f79c2d-e803-d7b1-078f-8757ca9b1238@yahoo.com> <040ad66a-71dd-001b-0446-36cbd6547b37@yahoo.com> <5b9d64bb-2adc-20a2-f596-f99bf255b5cc@linux-m68k.org> <56bd9a33-c58a-58e0-3956-e63c61abe5fe@yahoo.com> <1725f7c1-2084-a404-653d-9e9f8bbe961c@linux-m68k.org> <19d1f2ac-67dd-5415-b64a-1e1b4451f01e@linux-m68k.org> <87zg7rap45.fsf@igel.home> <5a5588ca-81c3-3f4c-fd43-c95e90b27939@linux-m68k.org> <67f6bc5f-e1fc-64b9-cb3c-1698cf4daf51@gmail.com> <9eea635f-c947-eae7-09fa-d39f00d91532@linux-m68k.org> <3dfea52a-b09e-517a-c3ca-4b559a3d9ce4@gmail.com> <23ddfd2a-1123-45ae-866d-158d45e23ba2@linux-m68k.org> <8ff53c49-331e-1388-31c5-79cf21a2c201@gmail.com> Cc: Finn Thain , Andreas Schwab , debian-68k@lists.debian.org, linux-m68k@lists.linux-m68k.org From: Michael Schmitz Message-ID: <79ad6f51-5d02-0104-3b63-024e54a25e3c@gmail.com> Date: Sun, 9 Apr 2023 13:56:05 +1200 User-Agent: Mozilla/5.0 (X11; Linux ppc; rv:45.0) Gecko/20100101 Icedove/45.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-m68k@vger.kernel.org Hi Geert, Am 08.04.2023 um 00:06 schrieb Geert Uytterhoeven: > Hi Michael, > > On Fri, Apr 7, 2023 at 3:58 AM Michael Schmitz wrote: >> The easiest way to do that is to log all wait and signal syscalls, as >> well as process exit. That might alter timing if these log messages go >> to the serial console though. Is that what you have in mind? > > Store to RAM, retrieve through a new /proc file? Yes, that could be done, though I'd rather avoid duplicating a lot of the generic message formatting code (printk and friends). I'll have a look around ... Cheers, Michael > > Gr{oetje,eeting}s, > > Geert >