From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752922AbYKZQVK (ORCPT ); Wed, 26 Nov 2008 11:21:10 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753053AbYKZQUn (ORCPT ); Wed, 26 Nov 2008 11:20:43 -0500 Received: from turing-police.cc.vt.edu ([128.173.14.107]:38274 "EHLO turing-police.cc.vt.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752747AbYKZQUl (ORCPT ); Wed, 26 Nov 2008 11:20:41 -0500 X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.2 To: Andrew Morton , Jan Kara Cc: linux-kernel@vger.kernel.org Subject: 2.6.28-rc6-mmotm1126 - BUG in disk quota code From: Valdis.Kletnieks@vt.edu Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1227716433_3559P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Wed, 26 Nov 2008 11:20:33 -0500 Message-ID: <4270.1227716433@turing-police.cc.vt.edu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --==_Exmh_1227716433_3559P Content-Type: text/plain; charset=us-ascii System blew out when /etc/rc.sysinit did a 'quotaon -a'. Not sure which of the many quota-related commits in linux-next.patch or in -mm did this... [ 39.588815] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 [ 39.589715] IP: [<0000000000000000>] 0x0 [ 39.589715] PGD 0 [ 39.589715] Oops: 0010 [#1] PREEMPT SMP [ 39.589715] last sysfs file: /sys/devices/virtual/block/dm-13/dev [ 39.589715] Dumping ftrace buffer: [ 39.589715] (ftrace buffer empty) [ 39.589715] CPU 0 [ 39.589715] Modules linked in: rtc acpi_cpufreq tpm_tis tpm tpm_bios arc4 ecb pcmcia iwl3945 rfkill mac80211 led_class lib80211 video yenta_socket output intel_agp cfg80211 button rsrc_nonstatic uhci_hcd ohci1394 thermal battery pcmcia_core iTCO_wdt dcdbas ac ieee1394 processor iTCO_vendor_support snd_hda_intel [ 39.589715] Pid: 1526, comm: quotaon Not tainted 2.6.28-rc6-mmotm1126 #1 [ 39.589715] RIP: 0010:[<0000000000000000>] [<0000000000000000>] 0x0 [ 39.589715] RSP: 0018:ffff88007e12fd00 EFLAGS: 00010246 [ 39.589715] RAX: ffffffff80740bb0 RBX: 0000000000000000 RCX: 0000000000000fe8 [ 39.589715] RDX: 0000000000001514 RSI: 0000000000000001 RDI: ffff88007dc69c00 [ 39.589715] RBP: ffff88007e12fd38 R08: ffff88007e12fcf8 R09: 00000000ffffffff [ 39.589715] R10: ffffffff8020ab8e R11: ffff88007e12faa8 R12: ffff88007bc47cb8 [ 39.589715] R13: 0000000000000001 R14: ffff88007dc69c00 R15: 0000000000000000 [ 39.589715] FS: 00007f1b84c616f0(0000) GS:ffffffff807b5500(0000) knlGS:0000000000000000 [ 39.589715] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 39.589715] CR2: 0000000000000000 CR3: 000000007ec7b000 CR4: 00000000000006e0 [ 39.589715] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.589715] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 39.589715] Process quotaon (pid: 1526, threadinfo ffff88007e12e000, task ffff88007f308040) [ 39.589715] Stack: [ 39.589715] ffffffff802e974d 0000000000000fe8 0000000000000001 ffff88007bc47cb8 [ 39.589715] ffff88007bc47cc0 0000000000000000 0000000000000001 ffff88007e12fd78 [ 39.589715] ffffffff802e99ce ffff88007e12fd68 000000007bc6b3e0 ffff88007bc6b3e0 [ 39.589715] Call Trace: [ 39.589715] [] ? dqget+0x104/0x2fd [ 39.589715] [] dquot_initialize+0x88/0xbd [ 39.589715] [] ext3_dquot_initialize+0x56/0x77 [ 39.589715] [] vfs_load_quota_inode+0x361/0x45e [ 39.589715] [] vfs_quota_on_path+0x4c/0x59 [ 39.589715] [] ext3_quota_on+0x153/0x170 [ 39.589715] [] sys_quotactl+0x408/0x6b6 [ 39.589715] [] ? __fput+0x1c4/0x1d1 [ 39.589715] [] ? trace_hardirqs_off_thunk+0x3a/0x6c [ 39.589715] [] ? trace_hardirqs_on_thunk+0x3a/0x3c [ 39.589715] [] system_call_fastpath+0x16/0x1b [ 39.589715] Code: Bad RIP value. [ 39.589715] RIP [<0000000000000000>] 0x0 [ 39.589715] RSP [ 39.589715] CR2: 0000000000000000 [ 49.575587] ---[ end trace f5b21e7d583dfbbd ]--- I wonder where the system went for the 10 seconds between CR2 and 'end trace'? --==_Exmh_1227716433_3559P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFJLXdRcC3lWbTT17ARAuGdAKCxR8GxRnGsulNJtkKhN/OE+iNY/QCgxJWw bY5aciyUhvwz+YdcJNHPhRU= =zo/q -----END PGP SIGNATURE----- --==_Exmh_1227716433_3559P--