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=1.2 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FAKE_REPLY_A1,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,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 041AFCA9EA0 for ; Sun, 20 Oct 2019 19:25:48 +0000 (UTC) Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by mail.kernel.org (Postfix) with SMTP id 448C721929 for ; Sun, 20 Oct 2019 19:25:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Y8IUdhps" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 448C721929 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernel-hardening-return-17065-kernel-hardening=archiver.kernel.org@lists.openwall.com Received: (qmail 22011 invoked by uid 550); 20 Oct 2019 19:25:40 -0000 Mailing-List: contact kernel-hardening-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Received: (qmail 13370 invoked from network); 20 Oct 2019 19:02:12 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=to:cc:reply-to:from:subject:message-id:date:user-agent:mime-version :content-transfer-encoding:content-language; bh=MQO0yS1C5u3Vz5QrUXBas962jxMsl9zmhNl24X0oxMM=; b=Y8IUdhpsSbZADFQzMtu0F/zoSeSNoc6Nu4j9+ubIZTnhbk4QXFDL89uq2bOIwAvEmZ 4ARtW1EFGIm5m8BgQcIdmwdyuoiUUwiMANNg8LKVjUCy3RzXiRB1CAWak5OFNs2nD7Ze rHif7q/E4Rzt7AcY852EIPwNq76Gw/6fOIR5mFZoDajJuwuItn5WTUKPerVW0Ok4Ahye z6Mwi9oHFOMpwcQf+5ZZcu4gnBrWys3ZjFhtCSJl+HIIfhMsyRQeZVvA0XPNlFVEqvpD dOiv5kDU/RToIOURB7qWHmj0hQYQ3jNzYHR4Tt5Zg59j7GeY1rfZvKba4P3OoJAR+Q4u Ah7g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:to:cc:reply-to:from:subject:message-id:date :user-agent:mime-version:content-transfer-encoding:content-language; bh=MQO0yS1C5u3Vz5QrUXBas962jxMsl9zmhNl24X0oxMM=; b=HG0IBtpoLoZ6rl2h1cmQgtrThScP6oZ3dx3+k2MXFgK7hb5Lpu+PTtrzPvcGJuP5Zq baxxAY7/dn0fsrPJ/JNJVRQcEdzn1K4v3Rldl3FXAC3ym0XlRzjoZbps36U0NOOUDMB0 n/mGbqKlgGVoItFJimQ4fMkWg+UQ+PgG0+QDk3OfaCJeQXgWnUrZ/qW9bAB1OVtLocZJ zxbbTr/P1rMn7BmFO6QGFTOUrff94V21AgNtlWVhlJY6mkpMJJu8g47nQLM7FfCwKVUs TEy/7RcuZOA05c7h56cVc3Na+WWnXuoiUsx5OXdSXB1tv3yxA46FdRvrOL2ZRH8N/0af cTfw== X-Gm-Message-State: APjAAAWde8mSKeAXkqrzXnhl+4PrXWToZzFoZkdu1E2VBeaLtMUyD5T4 l4uIu9lTi/IoTooXnc9JiBk= X-Google-Smtp-Source: APXvYqzWEGg50KXCmv2LSXigmVdNjIf821/hZz311ShqrcJA89dgkEjF0HLMmzRQuYEhYSUJCMqd4g== X-Received: by 2002:a17:902:7207:: with SMTP id ba7mr10721376plb.172.1571598120891; Sun, 20 Oct 2019 12:02:00 -0700 (PDT) To: keescook@chromium.org Cc: kernel-hardening@lists.openwall.com, munisekharrms@gmail.com From: youling257 Subject: Re: How to get the crash dump if system hangs? Message-ID: <2e2a3d3c-872e-3d07-5585-92734a532ef2@gmail.com> Date: Mon, 21 Oct 2019 03:01:59 +0800 User-Agent: Mozilla/5.0 (X11; Linux i686; rv:68.0) Gecko/20100101 Thunderbird/68.1.2 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US I don't know my ramoops.mem_address, please help me. what is ramoops.mem_address? # cat /proc/iomem 00000000-00000fff : Reserved 00001000-0008efff : System RAM 0008f000-0008ffff : ACPI Non-volatile Storage 00090000-0009dfff : System RAM 0009e000-0009ffff : Reserved 000a0000-000bffff : PCI Bus 0000:00 000c0000-000dffff : PCI Bus 0000:00 000e0000-000fffff : PCI Bus 0000:00   000f0000-000fffff : System ROM 00100000-1fffffff : System RAM 20000000-201fffff : Reserved   20000000-201fffff : 80860F28:00 20200000-779c5fff : System RAM   4c800000-4d401150 : Kernel code   4d401151-4dd1fb3f : Kernel data   4e212000-4e3fffff : Kernel bss 779c6000-77a12fff : Reserved 77a13000-77a1bfff : Unknown E820 type 77a1c000-77afffff : Reserved 77b00000-7bb6dfff : System RAM 7bb6e000-7bbcdfff : Unknown E820 type 7bbce000-7bdcdfff : Reserved 7bdce000-7bdcefff : System RAM 7bdcf000-7bdcffff : Reserved 7bdd0000-7bdd1fff : System RAM 7bdd2000-7bdd2fff : Reserved 7bdd3000-7c7fffff : System RAM 7c800000-7cbfffff : RAM buffer 7cc00000-7cc3afff : System RAM 7cc3b000-7cc47fff : Reserved 7cc48000-7ccb7fff : ACPI Non-volatile Storage 7ccb8000-7ccf7fff : ACPI Tables 7ccf8000-7ccfffff : System RAM 7cd00000-7cefffff : RAM buffer 7cf00000-7ef00000 : Reserved   7cf00001-7ef00000 : PCI Bus 0000:00     7cf00001-7eeffffe : Graphics Stolen Memory 7ef00001-7fefffff : RAM buffer 7ff00000-7ff00fff : MSFT0101:00 7ff01000-7fffffff : RAM buffer 80000000-90affffe : PCI Bus 0000:00   80000000-8fffffff : 0000:00:02.0   90000000-903fffff : 0000:00:02.0     901e5000-901e5fff : hdmi-lpe-audio-mmio   90400000-905fffff : dwc_usb3     90400000-905fffff : 0000:00:16.0       9040c100-905fffff : dwc3.3.auto   90800000-908fffff : 0000:00:1a.0   90900000-909fffff : 0000:00:1a.0   90a00000-90a0ffff : 0000:00:14.0     90a00000-90a0ffff : xhci-hcd   90a2c000-90a2cfff : 0000:00:16.0 90b00000-90b00fff : 80860F28:00 90b01000-90b01fff : INT33BB:00   90b01000-90b01fff : INT33BB:00 90b04000-90b07fff : INTL9C60:01   90b04000-90b07fff : INTL9C60:01 90b08000-90b08fff : 80860F41:00   90b08000-90b08fff : 80860F41:00 90b0a000-90b0afff : 80860F41:01   90b0a000-90b0afff : 80860F41:01 90b0c000-90b0cfff : 80860F41:02   90b0c000-90b0cfff : 80860F41:02 90b0e000-90b0efff : 80860F41:03   90b0e000-90b0efff : 80860F41:03 90b10000-90b10fff : 80860F41:04   90b10000-90b10fff : 80860F41:04 90b13000-90b13fff : 80860F09:00   90b13000-90b13fff : 80860F09:00 90b14000-90b17fff : INTL9C60:00   90b14000-90b17fff : INTL9C60:00 90b19000-90b19fff : 80860F0A:00   90b19000-90b1901f : serial 90b1b000-90b1bfff : 80860F0A:01   90b1b000-90b1b01f : serial 90b1d000-90b1dfff : 80860F14:02   90b1d000-90b1dfff : 80860F14:02 90b1f000-90b1ffff : 80860F14:00   90b1f000-90b1ffff : 80860F14:00 90c00000-90ffffff : PCI Bus 0000:00 91000000-911fffff : 80860F28:00 e00000d0-e00000db : INT33BD:00 e00f8000-e00f8fff : Reserved fec00000-fec003ff : IOAPIC 0 fed00000-fed003ff : HPET 0   fed00000-fed003ff : PNP0103:00 fed01000-fed01fff : Reserved   fed01000-fed011ff : intel-spi fed03008-fed0300c : iTCO_wdt.2.auto fed05000-fed057ff : INT3401:00 fed0c000-fed0cfff : INT33FC:00   fed0c000-fed0cfff : INT33FC:00 fed0d000-fed0dfff : INT33FC:01   fed0d000-fed0dfff : INT33FC:01 fed0e000-fed0efff : INT33FC:02   fed0e000-fed0efff : INT33FC:02 fed40000-fed40fff : PCI Bus 0000:00 fee00000-fee00fff : Local APIC ff000000-ffffffff : INT0800:00   ffd00000-ffffffff : Reserved