Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760803AbYHUTEa (ORCPT ); Thu, 21 Aug 2008 15:04:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754851AbYHUTEX (ORCPT ); Thu, 21 Aug 2008 15:04:23 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:39558 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754387AbYHUTEW (ORCPT ); Thu, 21 Aug 2008 15:04:22 -0400 From: "Rafael J. Wysocki" To: "Vegard Nossum" Subject: Re: latest -git: hibernate: possible circular locking dependency detected Date: Thu, 21 Aug 2008 21:07:41 +0200 User-Agent: KMail/1.9.6 (enterprise 20070904.708012) Cc: "Dmitry Adamushko" , "Max Krasnyanskiy" , "Linux Kernel Mailing List" , Pavel Machek References: <19f34abd0808210804y7ee91d1fy12da5ad6f82d2451@mail.gmail.com> <19f34abd0808211131h7c4b4fcfo99f858218aad8027@mail.gmail.com> <19f34abd0808211139s24f0d57bq7fbd6d2963594919@mail.gmail.com> In-Reply-To: <19f34abd0808211139s24f0d57bq7fbd6d2963594919@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200808212107.42356.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1355 Lines: 49 On Thursday, 21 of August 2008, Vegard Nossum wrote: > On Thu, Aug 21, 2008 at 8:31 PM, Vegard Nossum wrote: > > On Thu, Aug 21, 2008 at 8:22 PM, Rafael J. Wysocki wrote: > >> On Thursday, 21 of August 2008, Vegard Nossum wrote: > >>> > >>> I just got this on v2.6.27-rc4 (+ unrelated fix): > >>> > >>> ACPI: Preparing to enter system sleep state S5 > >> > >> This looks fishy. > >> > >> Please check what's there in /sys/power/disk . > >> > > Sorry, forgot this one: > > # cat /sys/power/disk > test testproc [shutdown] reboot Hm, I wonder why 'platform' isn't there. Perhaps the dmesg log will tell. [/me looks] No, it doesn't. The BIOS evidently supports S4. [/me looks into the source code] I have no idea whatsoever how it is possible to have "ACPI: (supports S0 S1 S3 S4 S5)" in the log and not to have "platform" in the output of "cat /sys/power/disk". Can you please add printk(KERN_CRIT "PM: hibernation_ops = %p\n", hibernation_ops); at the end of kernel/power/disk.c:hibernation_set_ops() and see if it gets printed during boot? Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/