From owner-freebsd-acpi@FreeBSD.ORG Wed Feb 27 15:22:56 2013 Return-Path: Delivered-To: freebsd-acpi@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id DC75F843 for ; Wed, 27 Feb 2013 15:22:56 +0000 (UTC) (envelope-from kron24@gmail.com) Received: from mail-ea0-x229.google.com (mail-ea0-x229.google.com [IPv6:2a00:1450:4013:c01::229]) by mx1.freebsd.org (Postfix) with ESMTP id 5C075985 for ; Wed, 27 Feb 2013 15:22:56 +0000 (UTC) Received: by mail-ea0-f169.google.com with SMTP id d13so53257eaa.14 for ; Wed, 27 Feb 2013 07:22:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:message-id:date:from:user-agent:mime-version:to:subject :content-type:content-transfer-encoding; bh=IW0jM/Zsm0ymRgmQIFux1mLZimSQonQysaK2MvFm2gI=; b=iX1L22aUvIQ1MWwF/XYPnpoGNIslDw5F7M0xCZPC0RF8Xzux79imx2vzTYqZRAUzUs IWB7UHF87ug2Um1DhtAp2pJk6kd77GJLlK1NdCyTmbU7KxzAItDyco0kseDpCXAiaR7P z3itv72SdQ/57igdJS0apaGyvOS8SFtUwJBjocMLJAQEYFVW8t66N9a2NoKb4vwbVaao bB+gcuuLhiynnf6KBqgiO8xBvv+3eCNYr4MQ/cbnDz+zCmQqGMBavZgeWWtB3fuPSZwe M2c2jUFJaN977MNRo2zmgr592fhGMz8y3r87KzscvZ3Zt+WH9GurtzOoBM/Q8Y7pgH1z 8Vgw== X-Received: by 10.14.219.129 with SMTP id m1mr7089149eep.16.1361978575336; Wed, 27 Feb 2013 07:22:55 -0800 (PST) Received: from nbvk.local (uidzr185150.sattnet.cz. [212.96.185.150]) by mx.google.com with ESMTPS id o3sm6941811eem.15.2013.02.27.07.22.54 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 27 Feb 2013 07:22:54 -0800 (PST) Message-ID: <512E24CD.9090404@gmail.com> Date: Wed, 27 Feb 2013 16:22:53 +0100 From: kron User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:17.0) Gecko/20130225 Thunderbird/17.0.3 MIME-Version: 1.0 To: freebsd-acpi@freebsd.org Subject: panics due to buggy ACPI in Dell Latitude E6530? Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 Feb 2013 15:22:56 -0000 Hi, I have a Dell notebook (Latitude E6530) on which I track 9-STABLE. It served excellently until mid-Jan when it started to panic a few times a week or so: Fatal trap 12: page fault while in kernel mode cpuid = 3; apic id = 03 fault virtual address = 0x10116 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff802bc360 stack pointer = 0x28:0xffffff848f6db390 frame pointer = 0x28:0xffffff848f6db3c0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 2199 (conky) trap number = 12 panic: page fault cpuid = 3 Before the panics kernel used to emit messages like: ACPI Error: No object attached to node 0xfffffe00094a51c0 (20110527/exresnte-138) ACPI Error: Method execution failed [\_SB_.BAT0._UID] (Node 0xfffffe00094a51c0), AE_AML_NO_OPERAND (20110527/uteval-113) I suspected it started with a BIOS update (A07 -> A09). Following the handbook, I took a look at acpidump. Sad to say, it all was Greek to me, I could't even compile it back using iasl (35 Errors). However, while skimming it I noticed names of many versions of Windows and in addition to that, "Linux". Just to try, I put hw.acpi.osname="Linux" to /boot/loader.conf. Since that I've never get the panic again (for ~3 weeks). I hope this is not just a coincidence. Maybe this experience can help somebody else. If any of ACPI developers wants to play with the problem I can provide more info (sorry, no crashdump, was not enabled), do tests, etc. BR Oli