From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932572AbYEGTcd (ORCPT ); Wed, 7 May 2008 15:32:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755931AbYEGTcV (ORCPT ); Wed, 7 May 2008 15:32:21 -0400 Received: from mail.gmx.net ([213.165.64.20]:44998 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751138AbYEGTcS (ORCPT ); Wed, 7 May 2008 15:32:18 -0400 X-Authenticated: #44953887 X-Provags-ID: V01U2FsdGVkX18UupMF6hEU9p5l6Vd/UlGWAybGpLwEKmP8EX78jw bXxD8tGzqOVEEM Subject: Re: [BUG]:WARNING: at arch/x86/kernel/rtc.c:122 in 2.6.26-rc1 From: Mirco Tischler To: Thomas Gleixner Cc: Ingo Molnar , lkml , Andi Kleen In-Reply-To: References: <1210183536.28099.10.camel@mtlp.tischlernetz> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-N+TMBf8psVQqZff+NJca" Date: Wed, 07 May 2008 21:32:14 +0200 Message-Id: <1210188734.5456.14.camel@mtlp.tischlernetz> Mime-Version: 1.0 X-Mailer: Evolution 2.22.1.1 X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-N+TMBf8psVQqZff+NJca Content-Type: multipart/mixed; boundary="=-IzcEZZYpU+nt5+Yw99Ly" --=-IzcEZZYpU+nt5+Yw99Ly Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Mi, 2008-05-07 at 21:06 +0200, Thomas Gleixner wrote: > > [11677.490019] CPU1 is down > > [11677.490149] Extended CMOS year: 2000 > > [11677.490149] x86 PAT enabled: cpu 0, old 0x7040600070406, new > > 0x7010600070106 > > [11677.490747] Back to C! > > [11677.490952] microcode: CPU0 updated from revision 0x92 to 0x92, date > > =3D 03132007=20 > > [11677.491065] ------------[ cut here ]------------ > > [11677.491065] WARNING: at arch/x86/kernel/rtc.c:122 mach_get_cmos_time > > +0x9e/0x14e() >=20 > > [11677.491065] [] mach_get_cmos_time+0x9e/0x14e > > [11677.491065] [] read_persistent_clock+0x1b/0x35 > > [11677.491065] [] timekeeping_resume+0xb/0x120 >=20 > Interesting. That's in the resume path. >=20 > > I wasn't able to reproduce the warning yet, but because the commit > > message introducing the WARN_ON says: >=20 > This is a WARN_ON_ONCE so you only see it once per boot. Resume does > not count :) You might change that WARN_ON_ONCE to WARN_ON to check > whether it happens more than once. The problem is that I am currently not able to reproduce it. I've tried ~10 suspends & resumes till now. With a reboot in between. Will try some more testing with WARN_ON though. > Can you please provide some details about the system ? This is a Zepto notebook with Intel chipset (santa rosa generation) and core2duo cpu. I'm running Ubuntu 8.04 x86_64. I attach a lspci output. Just ask if you need more specific information. > Thanks, > tglx Thanks Mirco --=-IzcEZZYpU+nt5+Yw99Ly Content-Disposition: attachment; filename=lspci Content-Type: text/plain; name=lspci; charset=UTF-8 Content-Transfer-Encoding: base64 MDA6MDAuMCBIb3N0IGJyaWRnZTogSW50ZWwgQ29ycG9yYXRpb24gTW9iaWxlIFBNOTY1L0dNOTY1 L0dMOTYwIE1lbW9yeSBDb250cm9sbGVyIEh1YiAocmV2IDAzKQ0KMDA6MDIuMCBWR0EgY29tcGF0 aWJsZSBjb250cm9sbGVyOiBJbnRlbCBDb3Jwb3JhdGlvbiBNb2JpbGUgR005NjUvR0w5NjAgSW50 ZWdyYXRlZCBHcmFwaGljcyBDb250cm9sbGVyIChyZXYgMDMpDQowMDowMi4xIERpc3BsYXkgY29u dHJvbGxlcjogSW50ZWwgQ29ycG9yYXRpb24gTW9iaWxlIEdNOTY1L0dMOTYwIEludGVncmF0ZWQg R3JhcGhpY3MgQ29udHJvbGxlciAocmV2IDAzKQ0KMDA6MWEuMCBVU0IgQ29udHJvbGxlcjogSW50 ZWwgQ29ycG9yYXRpb24gODI4MDFIIChJQ0g4IEZhbWlseSkgVVNCIFVIQ0kgQ29udHJvbGxlciAj NCAocmV2IDAzKQ0KMDA6MWEuMSBVU0IgQ29udHJvbGxlcjogSW50ZWwgQ29ycG9yYXRpb24gODI4 MDFIIChJQ0g4IEZhbWlseSkgVVNCIFVIQ0kgQ29udHJvbGxlciAjNSAocmV2IDAzKQ0KMDA6MWEu NyBVU0IgQ29udHJvbGxlcjogSW50ZWwgQ29ycG9yYXRpb24gODI4MDFIIChJQ0g4IEZhbWlseSkg VVNCMiBFSENJIENvbnRyb2xsZXIgIzIgKHJldiAwMykNCjAwOjFiLjAgQXVkaW8gZGV2aWNlOiBJ bnRlbCBDb3Jwb3JhdGlvbiA4MjgwMUggKElDSDggRmFtaWx5KSBIRCBBdWRpbyBDb250cm9sbGVy IChyZXYgMDMpDQowMDoxYy4wIFBDSSBicmlkZ2U6IEludGVsIENvcnBvcmF0aW9uIDgyODAxSCAo SUNIOCBGYW1pbHkpIFBDSSBFeHByZXNzIFBvcnQgMSAocmV2IDAzKQ0KMDA6MWMuMSBQQ0kgYnJp ZGdlOiBJbnRlbCBDb3Jwb3JhdGlvbiA4MjgwMUggKElDSDggRmFtaWx5KSBQQ0kgRXhwcmVzcyBQ b3J0IDIgKHJldiAwMykNCjAwOjFjLjIgUENJIGJyaWRnZTogSW50ZWwgQ29ycG9yYXRpb24gODI4 MDFIIChJQ0g4IEZhbWlseSkgUENJIEV4cHJlc3MgUG9ydCAzIChyZXYgMDMpDQowMDoxYy4zIFBD SSBicmlkZ2U6IEludGVsIENvcnBvcmF0aW9uIDgyODAxSCAoSUNIOCBGYW1pbHkpIFBDSSBFeHBy ZXNzIFBvcnQgNCAocmV2IDAzKQ0KMDA6MWQuMCBVU0IgQ29udHJvbGxlcjogSW50ZWwgQ29ycG9y YXRpb24gODI4MDFIIChJQ0g4IEZhbWlseSkgVVNCIFVIQ0kgQ29udHJvbGxlciAjMSAocmV2IDAz KQ0KMDA6MWQuMSBVU0IgQ29udHJvbGxlcjogSW50ZWwgQ29ycG9yYXRpb24gODI4MDFIIChJQ0g4 IEZhbWlseSkgVVNCIFVIQ0kgQ29udHJvbGxlciAjMiAocmV2IDAzKQ0KMDA6MWQuMiBVU0IgQ29u dHJvbGxlcjogSW50ZWwgQ29ycG9yYXRpb24gODI4MDFIIChJQ0g4IEZhbWlseSkgVVNCIFVIQ0kg Q29udHJvbGxlciAjMyAocmV2IDAzKQ0KMDA6MWQuNyBVU0IgQ29udHJvbGxlcjogSW50ZWwgQ29y cG9yYXRpb24gODI4MDFIIChJQ0g4IEZhbWlseSkgVVNCMiBFSENJIENvbnRyb2xsZXIgIzEgKHJl diAwMykNCjAwOjFlLjAgUENJIGJyaWRnZTogSW50ZWwgQ29ycG9yYXRpb24gODI4MDEgTW9iaWxl IFBDSSBCcmlkZ2UgKHJldiBmMykNCjAwOjFmLjAgSVNBIGJyaWRnZTogSW50ZWwgQ29ycG9yYXRp b24gODI4MDFIRU0gKElDSDhNKSBMUEMgSW50ZXJmYWNlIENvbnRyb2xsZXIgKHJldiAwMykNCjAw OjFmLjEgSURFIGludGVyZmFjZTogSW50ZWwgQ29ycG9yYXRpb24gODI4MDFIQk0vSEVNIChJQ0g4 TS9JQ0g4TS1FKSBJREUgQ29udHJvbGxlciAocmV2IDAzKQ0KMDA6MWYuMiBTQVRBIGNvbnRyb2xs ZXI6IEludGVsIENvcnBvcmF0aW9uIDgyODAxSEJNL0hFTSAoSUNIOE0vSUNIOE0tRSkgU0FUQSBB SENJIENvbnRyb2xsZXIgKHJldiAwMykNCjAwOjFmLjMgU01CdXM6IEludGVsIENvcnBvcmF0aW9u IDgyODAxSCAoSUNIOCBGYW1pbHkpIFNNQnVzIENvbnRyb2xsZXIgKHJldiAwMykNCjAyOjAwLjAg RXRoZXJuZXQgY29udHJvbGxlcjogQnJvYWRjb20gQ29ycG9yYXRpb24gTmV0TGluayBCQ001Nzg3 TSBHaWdhYml0IEV0aGVybmV0IFBDSSBFeHByZXNzIChyZXYgMDIpDQowNDowMC4wIE5ldHdvcmsg Y29udHJvbGxlcjogSW50ZWwgQ29ycG9yYXRpb24gUFJPL1dpcmVsZXNzIDQ5NjUgQUcgb3IgQUdO IE5ldHdvcmsgQ29ubmVjdGlvbiAocmV2IDYxKQ0KMDY6MDYuMCBDYXJkQnVzIGJyaWRnZTogVGV4 YXMgSW5zdHJ1bWVudHMgUENJeHgxMiBDYXJkYnVzIENvbnRyb2xsZXINCjA2OjA2LjEgRmlyZVdp cmUgKElFRUUgMTM5NCk6IFRleGFzIEluc3RydW1lbnRzIFBDSXh4MTIgT0hDSSBDb21wbGlhbnQg SUVFRSAxMzk0IEhvc3QgQ29udHJvbGxlcg0KMDY6MDYuMiBNYXNzIHN0b3JhZ2UgY29udHJvbGxl cjogVGV4YXMgSW5zdHJ1bWVudHMgNS1pbi0xIE11bHRpbWVkaWEgQ2FyZCBSZWFkZXIgKFNEL01N Qy9NUy9NUyBQUk8veEQpDQowNjowNi4zIFNEIEhvc3QgY29udHJvbGxlcjogVGV4YXMgSW5zdHJ1 bWVudHMgUENJeHgxMiBTREEgU3RhbmRhcmQgQ29tcGxpYW50IFNEIEhvc3QgQ29udHJvbGxlcg0K --=-IzcEZZYpU+nt5+Yw99Ly-- --=-N+TMBf8psVQqZff+NJca Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQBIIgO+z+diZ7c2xfgRAqvjAJ4x3CDDfhluj+tfwgufI6omkNzgPgCeK7ii wVGripuEOY9ZAPXpvyDBX74= =PP3B -----END PGP SIGNATURE----- --=-N+TMBf8psVQqZff+NJca--