From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tilman Schmidt Subject: Re: [2.6.25-rc5-mm1] BUG: spinlock bad magic early during boot Date: Thu, 20 Mar 2008 00:50:34 +0100 Message-ID: <47E1A6CA.7070608@imap.cc> References: <20080311011434.ad8c8d7d.akpm@linux-foundation.org> <47D86D43.2060108@imap.cc> <1205441216.4971.65.camel@nimitz.home.sr71.net> <47D9C853.3040701@imap.cc> <1205517802.12763.18.camel@nimitz.home.sr71.net> <1205525184.12763.32.camel@nimitz.home.sr71.net> <47DAE55C.3080506@tremplin-utc.net> <1205530551.8167.20.camel@nimitz.home.sr71.net> <47DB013D.3060102@tremplin-utc.net> <1205537395.8167.31.camel@nimitz.home.sr71.net> <47DBC578.7050101@imap.cc> <1205698279.8167.44.camel@nimitz.home.sr71.net> <1205756615.8514.311.camel@twins> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig6BA0E70E9347D3E7759D1B6E" Return-path: Received: from out2.smtp.messagingengine.com ([66.111.4.26]:55572 "EHLO out2.smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761811AbYCSXuk (ORCPT ); Wed, 19 Mar 2008 19:50:40 -0400 In-Reply-To: <1205756615.8514.311.camel@twins> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Peter Zijlstra Cc: Dave Hansen , Eric Piel , Andrew Morton , linux-kernel@vger.kernel.org, Thomas Renninger , Len Brown , Linus Torvalds , Christoph Hellwig , Markus Gaugusch , linux-acpi@vger.kernel.org, Al Viro This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig6BA0E70E9347D3E7759D1B6E Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: quoted-printable Am 17.03.2008 13:23 schrieb Peter Zijlstra: > On Sun, 2008-03-16 at 13:11 -0700, Dave Hansen wrote: >=20 >>> ACPI: Core revision 20070126 >>> +INFO: trying to register non-static key. >>> +the code is fine but needs lockdep annotation. >>> +turning off the locking correctness validator. >>> +Pid: 0, comm: swapper Not tainted 2.6.25-rc5-mm1-testing #3 >>> + [] __lock_acquire+0x144/0xb6e >>> + [] ? native_sched_clock+0xe0/0xff >>> + [] ? kmem_cache_alloc+0x89/0xc9 >>> + [] ? trace_hardirqs_on+0xe8/0x11d >>> + [] lock_acquire+0x6a/0x90 >>> + [] ? down_trylock+0xc/0x27 >>> + [] _spin_lock_irqsave+0x42/0x72 >>> + [] ? down_trylock+0xc/0x27 >>> + [] down_trylock+0xc/0x27 >>> + [] acpi_os_wait_semaphore+0x67/0x13d >>> + [] acpi_ut_acquire_mutex+0x65/0xcf >>> + [] acpi_ns_root_initialize+0x1a/0x289 >>> + [] acpi_initialize_subsystem+0x47/0x6a >>> + [] acpi_early_init+0x57/0xf8 >>> + [] start_kernel+0x34d/0x35a >>> + [] i386_start_kernel+0x8/0xa >>> + =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= >>> ACPI: Checking initramfs for custom DSDT [...] > Looks like another of the semaphore thingies.. Does this go away once > you apply the semaphore lockdep fixup from here: >=20 > http://lkml.org/lkml/2008/3/12/63 Yes, it does. With that patch on top of Dave's, I see no stack backtraces in dmesg anymore. HTH T. --=20 Tilman Schmidt E-Mail: tilman@imap.cc Bonn, Germany Diese Nachricht besteht zu 100% aus wiederverwerteten Bits. Unge=F6ffnet mindestens haltbar bis: (siehe R=FCckseite) --------------enig6BA0E70E9347D3E7759D1B6E Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3rc1 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFH4abKMdB4Whm86/kRApucAJ4iM0kk6tR52+iNAPS7g6dXsLA+1QCePpm1 OfDDZfS22n8WiK8Zh5PBNEk= =NP1u -----END PGP SIGNATURE----- --------------enig6BA0E70E9347D3E7759D1B6E--