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=-4.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 ED74CC433ED for ; Thu, 15 Apr 2021 09:27:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BE2C2613CF for ; Thu, 15 Apr 2021 09:27:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231200AbhDOJ2Q (ORCPT ); Thu, 15 Apr 2021 05:28:16 -0400 Received: from mail.kernel.org ([198.145.29.99]:58750 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230260AbhDOJ2Q (ORCPT ); Thu, 15 Apr 2021 05:28:16 -0400 Received: by mail.kernel.org (Postfix) with ESMTPS id E4068613B6 for ; Thu, 15 Apr 2021 09:27:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1618478873; bh=m1PpRyhfOgnIUlebMNVwM4znZSg6TlSYFCPBqZYyMZk=; h=From:To:Subject:Date:In-Reply-To:References:From; b=LUgl8ulC5AMsbMUYIjIqroBqhjgh3MiEAD/AylYIw2UgWum2z7/xaVisxsIZE0cA/ w6zOH8si7XgGCNZtNSIcM6D6+WpaCPbfoMuKYeY/46DAH7rBpoLai/xJZblv40Rrgc ZaJpjBx1IrFqpHLrUVzs2nTgJErVmqu3QeMbNhmA63efl7fqCcFBivFTDkg2G+fkqj udDZBKkw9wqPPbtCw+eruKhufSKB7Tk6q/bzhhsUFfUxEy1vgZxblb8RAxp/AwZ1QT KSTHw/9uX0v07Z+UM5k+774OK93bcs6xDteci81vMppqlSocpdVUy0eLp8e4HK+iUX picvkZ48pp84Q== From: bugzilla-daemon@bugzilla.kernel.org To: platform-driver-x86@vger.kernel.org Subject: [Bug 204807] Hardware monitoring sensor nct6798d doesn't work unless acpi_enforce_resources=lax is enabled Date: Thu, 15 Apr 2021 09:27:53 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_platform_x86@kernel-bugs.osdl.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: Platform_x86 X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: high X-Bugzilla-Who: aros@gmx.com X-Bugzilla-Status: CLOSED X-Bugzilla-Resolution: INVALID X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: drivers_platform_x86@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: platform-driver-x86@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=3D204807 --- Comment #67 from Artem S. Tashkinov (aros@gmx.com) --- (In reply to Hans de Goede from comment #64) >=20 > Matthew rightly advises against using "acpi_enforce_resources=3Dlax" beca= use > that opens races between the firmware and Linux which could result in > writing to another superIO register then intended. This can definitely le= ad > to e.g. stopping the fans even though the CPU is running hot, which is not > good but all modern CPUs have builtin overtemp protection, so at the worst > the system will simply shutdown (1).=20 >=20 Multiple users use acpi_enforce_resources=3Dlax and I haven't seen a single report that it's ever broken anything. AFAIK no one has used this hack to control fans using PWM, so that might in= deed lead to unintended consequences. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=