Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751342AbWIOMlK (ORCPT ); Fri, 15 Sep 2006 08:41:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751343AbWIOMlJ (ORCPT ); Fri, 15 Sep 2006 08:41:09 -0400 Received: from systemlinux.org ([83.151.29.59]:17631 "EHLO m18s25.vlinux.de") by vger.kernel.org with ESMTP id S1751342AbWIOMlH (ORCPT ); Fri, 15 Sep 2006 08:41:07 -0400 Date: Fri, 15 Sep 2006 14:40:43 +0200 From: Andre Noll To: linux-kernel@vger.kernel.org, nfs@lists.sourceforge.net Subject: Re: 2.6.18-rc5 page_to_pfn: Unable to handle kernel NULL pointer dereference Message-ID: <20060915124043.GA20462@skl-net.de> References: <20060908073125.GA23642@skl-net.de> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="Nq2Wo0NMKNjxTN9z" Content-Disposition: inline In-Reply-To: <20060908073125.GA23642@skl-net.de> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2965 Lines: 73 --Nq2Wo0NMKNjxTN9z Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 09:31, Andre Noll wrote: > The following just happend to one of our 8-way Opteron cluster nodes > (nfs client version 3, solaris nfs server). The problem is still present in 2.6.18-rc7. This time it happend on a 2-processor Opteron machine: Pid: 945, comm: sge_execd Not tainted 2.6.18-rc7-tt64-6-g1883c5ab #4 RIP: 0010:[] [] page_to_pfn+0x0/0x33 RSP: 0018:ffff8100fac73bb0 EFLAGS: 00010283 RAX: 0000000000000a57 RBX: 00000000000004ae RCX: 0000000000000a57 RDX: ffff8100fac73bf0 RSI: ffff8101b9b1c540 RDI: 0000000000000000 RBP: 00000000000005a9 R08: ffff8101f7aa31d0 R09: ffff8101f7aa3040 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000b52 R13: ffff8100fac73bf8 R14: 0000000000002000 R15: ffff8101f7aa32e8 FS: 00002b83ded037a0(0000) GS:ffff8101000dc540(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000000 CR3: 00000000fad78000 CR4: 00000000000006a0 Process sge_execd (pid: 945, threadinfo ffff8100fac72000, task ffff810004be= 5180) Stack: ffffffff801d6276 ffff8101fc4f0440 ffff8101b9b1c3c0 0000000000000a57 ffff8101f7aa31d0 00000000000005a9 ffffffff801d64fc 0000000000000001 ffff8101ffec2e18 0000000000000000 ffff8101f7aa31d0 ffff8101ffec2e18 Call Trace: [] nfs_readpage_truncate_uninitialised_page+0x76/0xeb [] nfs_readpage_sync+0x211/0x253 [] nfs_readpage+0x118/0x151 [] do_generic_mapping_read+0x1ec/0x398 [] file_read_actor+0x0/0xd1 [] __generic_file_aio_read+0x177/0x1b0 [] generic_file_aio_read+0x34/0x39 [] nfs_file_read+0x84/0x93 [] do_sync_read+0xc9/0x106 [] autoremove_wake_function+0x0/0x2e [] do_mmap_pgoff+0x5fd/0x6de [] vfs_read+0xad/0x14c [] sys_read+0x45/0x6e [] system_call+0x7e/0x83 Code: 48 8b 07 48 c1 e8 3a 48 8b 14 c5 c0 79 5f 80 48 b8 b7 6d db=20 RIP [] page_to_pfn+0x0/0x33 RSP CR2: 0000000000000000 --=20 The only person who always got his work done by Friday was Robinson Crusoe --Nq2Wo0NMKNjxTN9z Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFFCp9LWto1QDEAkw8RAthNAJ4uFGdDXnRPD8hMlJ0cL3R/4Nk38QCeJ7Qf 62TPfDu9ghc5swNp909BIsE= =3lab -----END PGP SIGNATURE----- --Nq2Wo0NMKNjxTN9z-- - 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/