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=-2.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, 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 B1818C76190 for ; Mon, 22 Jul 2019 15:45:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8A1192171F for ; Mon, 22 Jul 2019 15:45:54 +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="h+X3Bs4v" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727247AbfGVPpy (ORCPT ); Mon, 22 Jul 2019 11:45:54 -0400 Received: from mail-pf1-f196.google.com ([209.85.210.196]:36068 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727123AbfGVPpy (ORCPT ); Mon, 22 Jul 2019 11:45:54 -0400 Received: by mail-pf1-f196.google.com with SMTP id r7so17567317pfl.3 for ; Mon, 22 Jul 2019 08:45:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to :user-agent; bh=hobcJdQLeiCT2hAJw+JhWd+Cs3DiiolJ1ezHfZQe+y4=; b=h+X3Bs4vlf9FFmu29u0Zwc10ThfWAyA2hMlDZrIOZcbdNfcqx56krzq8PAPjLLt3gH kH9ED5S+G5+dcd5F3fOYBxypRMekIMUJMarLpj6gKgOqWyZGFpE9CaXoPrJeg1/2WTSL r8xnvf7+jy9g6O+VJQbcBTMfKMcPlUUR632lF8Mw/RCgNwXOkcSk01eBI/v7bIQjVVMF 349nIAoabZJ7hXz0ufUNwvG360Wwa0YlIrZpoS4MyQWQN+MdFQf4e7R05MeI/habhKOf 7JKuqN1xDfMnhg9v4BO/EQkdoMibUDhPprnPenr0Q+nEq+ikCkqgtARQk5Z8Yw5jGb9w rl2g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition :content-transfer-encoding:in-reply-to:user-agent; bh=hobcJdQLeiCT2hAJw+JhWd+Cs3DiiolJ1ezHfZQe+y4=; b=png6XSHPcviS63/P6mvSCujTaOCUhwg8hsNGQ3YOmV+rpwORRld9qYLYRZ0CKNat9k zgy7C2OCwqmXn4d5D9bz4uqvtnNGa6iOaIsydiE+5L2xKMLTBcwr2SNuGTAI+ufz4wZ7 ZbXaPyYRxmPnONmvSrYtVQqETLWx1btL4LhpdHWYUhdXMwrzzk+4JRL3S2FNZzZUCXIE Js+lqPWaadX4h6bgZ8h905WoYJz1c6YCP53d8ypVcADdXbSKa8kPUovp4VS7DWAO7prF kKp909/KbRHx/IIwoV2BmAN1o5u/QzHZeyqm802lDhGKeXURmUpkos1nqOHsAU+das3G r2Xg== X-Gm-Message-State: APjAAAU1SXawwJW9MI2FRz1c0FDc8EN5kTp8rPSkk8/GNOuAy5fy6AyP z7s/TdVYyxBOPq45bQtvZm4772Qu X-Google-Smtp-Source: APXvYqxBwsoXWhMjDBqlq2Mlm8KRnB5nHMd5pIukPcVFpay+pzmBURvqn4l8lHI5P013M4wcWR25yQ== X-Received: by 2002:a63:2148:: with SMTP id s8mr70621985pgm.336.1563810353084; Mon, 22 Jul 2019 08:45:53 -0700 (PDT) Received: from localhost ([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id z13sm32103499pfa.94.2019.07.22.08.45.50 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 22 Jul 2019 08:45:51 -0700 (PDT) Date: Mon, 22 Jul 2019 08:45:50 -0700 From: Guenter Roeck To: Valentin =?utf-8?B?VmlkacSH?= Cc: linux-watchdog@vger.kernel.org Subject: Re: iTCO_wdt on Intel NUC Message-ID: <20190722154549.GA5166@roeck-us.net> References: <20190721203047.3jd6slko6guz52fl@valentin-vidic.from.hr> <20190722045557.tndjp4hnpngvlaql@valentin-vidic.from.hr> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20190722045557.tndjp4hnpngvlaql@valentin-vidic.from.hr> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-watchdog-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org On Mon, Jul 22, 2019 at 06:55:57AM +0200, Valentin Vidić wrote: > On Sun, Jul 21, 2019 at 05:05:17PM -0700, Guenter Roeck wrote: > > Most likely the memory region is reserved/used by something else. /proc/iomem > > might show you. > > The output is a bit strange since it mentions iTCO_wdt for that address range: > > [ 9.377397] iTCO_wdt iTCO_wdt: can't request region for resource [mem 0x00c5fffc-0x00c5ffff] > > 00000000-00000fff : Reserved > 00001000-0009efff : System RAM > 0009f000-000fffff : Reserved > 000a0000-000bffff : PCI Bus 0000:00 > 000e0000-000e3fff : PCI Bus 0000:00 > 000e4000-000e7fff : PCI Bus 0000:00 > 000e8000-000ebfff : PCI Bus 0000:00 > 000ec000-000effff : PCI Bus 0000:00 > 000f0000-000fffff : System ROM > 00100000-6f8d8017 : System RAM > 00c5fffc-00c5ffff : iTCO_wdt > 6f8d8018-6f8e8e57 : System RAM > 6f8e8e58-79d52fff : System RAM > 79d53000-7a1bdfff : Reserved > 7a1be000-7a23afff : ACPI Tables > 7a23b000-7a2ebfff : ACPI Non-volatile Storage > 7a2ec000-7ac0dfff : Reserved > 7ac0e000-7ac0efff : System RAM > 7ac0f000-7fffffff : Reserved > 7c000000-7fffffff : Graphics Stolen Memory > Weird. Is iTCO_wdt instantiated twice ? I have no idea how to proceed, sorry. Guenter