From owner-freebsd-acpi@FreeBSD.ORG Fri Dec 4 20:59:42 2009 Return-Path: Delivered-To: freebsd-acpi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2C2FD106568B for ; Fri, 4 Dec 2009 20:59:42 +0000 (UTC) (envelope-from robert.moore@intel.com) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by mx1.freebsd.org (Postfix) with ESMTP id 024D28FC16 for ; Fri, 4 Dec 2009 20:59:41 +0000 (UTC) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga102.jf.intel.com with ESMTP; 04 Dec 2009 12:59:06 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.47,344,1257148800"; d="scan'208";a="472965015" Received: from orsmsx601.amr.corp.intel.com ([10.22.226.213]) by orsmga002.jf.intel.com with ESMTP; 04 Dec 2009 12:59:36 -0800 Received: from orsmsx503.amr.corp.intel.com ([10.22.226.47]) by orsmsx601.amr.corp.intel.com ([10.22.226.213]) with mapi; Fri, 4 Dec 2009 12:59:41 -0800 From: "Moore, Robert" To: Andriy Gapon Date: Fri, 4 Dec 2009 12:59:39 -0800 Thread-Topic: panic in AcpiExReleaseMutex Thread-Index: Acp1I3OygVYgasCbQLaTpWo+B3vr2gAAPAxw Message-ID: <4911F71203A09E4D9981D27F9D8308583E8F2BA9@orsmsx503.amr.corp.intel.com> References: <4B178387.4050601@icyb.net.ua> <4911F71203A09E4D9981D27F9D8308583E8F26CF@orsmsx503.amr.corp.intel.com> <4B189CD6.30906@icyb.net.ua> <4911F71203A09E4D9981D27F9D8308583E8F2A1F@orsmsx503.amr.corp.intel.com> <4B1975EE.5070803@icyb.net.ua> In-Reply-To: <4B1975EE.5070803@icyb.net.ua> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Cc: "freebsd-acpi@freebsd.org" , Tarick Subject: RE: panic in AcpiExReleaseMutex X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Dec 2009 20:59:42 -0000 It would appear that a GPE is taken, for the EC device, thus invoking EcGpe= QueryHandler. In what context is _Q20 or _Q09 executed? This might be an important question: What is the thread_id of this initial = thread? >-----Original Message----- >From: Andriy Gapon [mailto:avg@icyb.net.ua] >Sent: Friday, December 04, 2009 12:50 PM >To: Moore, Robert >Cc: freebsd-acpi@freebsd.org; Tarick >Subject: Re: panic in AcpiExReleaseMutex > >on 04/12/2009 20:45 Moore, Robert said the following: >> Yes, you are correct. I did not have the code in front of me at the time= . >> >> When AcpiExReleaseMutex is called, apparently the mutex is in fact held, >> otherwise the function would have aborted immediately. >> >> When the mutex is held, the Thread->AcquiredMutexList is expected to hol= d >(at >> the minimum) the mutex object being released. Something is very wrong if >this >> list is NULL when releasing the mutex. >> >> Just to make sure: All of this is happening in the same thread? > >Yes, this happens when there is only the initial thread running on BSP, no >other >threads are started yet. > > >-- >Andriy Gapon