From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754523Ab2JIAK6 (ORCPT ); Mon, 8 Oct 2012 20:10:58 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:38302 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753811Ab2JIAK4 (ORCPT ); Mon, 8 Oct 2012 20:10:56 -0400 Message-ID: <50736B8C.3010902@paintedocean.com> Date: Mon, 08 Oct 2012 17:10:52 -0700 From: Neil Salstrom Reply-To: salstrom@paintedocean.com User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/17.0 Thunderbird/17.0a2 MIME-Version: 1.0 To: Jan Kara CC: linux-kernel@vger.kernel.org Subject: Re: PROBLEM: 3.6.0 kernel BUG at fs/dcache.c:967 during shutdown / restart References: <5070685A.1060605@paintedocean.com> <20121008171424.GA14767@quack.suse.cz> In-Reply-To: <20121008171424.GA14767@quack.suse.cz> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/08/2012 10:14 AM, Jan Kara wrote: > On Sat 06-10-12 10:20:26, Neil Salstrom wrote: >> I've not submitted a kernel bug before but I've read the bug >> reporting pages. I'll try to do my best and if you need more >> information please let me know. Please feel free to cc me on the >> answer or if you have questions. >> >> I'm using Linux Mint 13 (64 bit) on AMD hardware with a self >> compiled 3.6.0 kernel for my MythTV HTPC. >> >> Kernel version: Linux version 3.6.0 (gcc version 4.6.3 >> (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #1 SMP Tue Oct 2 15:34:46 PDT 2012 >> >> CPU: model name : AMD A6-3500 APU with Radeon(tm) HD Graphics >> >> If you need any other system variables please let me know and I can >> get those as well. >> >> Upon shutdown or restart (from either the hard button on the case or >> a "sudo shutdown -r now" the system crashes and does not actually >> shut down. I can ssh in to the system and a dmesg shows the >> following: > There should be a line like: > BUG: Dentry ... still in use (%d) [unmount of %s %s] > > just before the oops. Can you please post that one as well? Also I see that > you are using nvidia module which taints the kernel. Can you try > reproducing the issue without the module loaded? > > Honza Here is the full output with no nvidia module. I also have the full dmeg from start to finish if you would like it. Thank you! [ 237.186167] BUG: Dentry ffff880118772540{i=6e,n=info} still in use (1) [unmount of rpc_pipefs rpc_pipefs] [ 237.186179] ------------[ cut here ]------------ [ 237.186181] kernel BUG at fs/dcache.c:967! [ 237.186182] invalid opcode: 0000 [#1] SMP [ 237.186185] Modules linked in: nls_utf8 udf crc_itu_t nfsv4 binfmt_misc nfsd nfs_acl auth_rpcgss nfs fscache lockd sunrpc snd_hda_codec_hdmi snd_hda_codec_realtek xfs snd_hda_intel snd_hda_codec snd_seq_midi snd_hwdep snd_rawmidi snd_pcm psmouse snd_seq_midi_event rc_imon_mce serio_raw snd_seq imon rc_core snd_timer snd_seq_device snd soundcore snd_page_alloc f71882fg r8169 ahci libahci [ 237.186203] CPU 2 [ 237.186206] Pid: 3063, comm: umount Not tainted 3.6.0 #1 System manufacturer System Product Name/F1A55-M LX PLUS [ 237.186208] RIP: 0010:[] [] shrink_dcache_for_umount_subtree+0x1e6/0x1f0 [ 237.186214] RSP: 0018:ffff8801181afd98 EFLAGS: 00010296 [ 237.186215] RAX: 000000000000005d RBX: ffff880118772540 RCX: 00000000000014bd [ 237.186217] RDX: 0000000000003256 RSI: 0000000000000046 RDI: ffffffff81bbf9bc [ 237.186218] RBP: ffff8801181afdb8 R08: 000000000000000a R09: 0000000000000000 [ 237.186219] R10: 0000000000000383 R11: 0000000000000382 R12: ffff88011873b9c0 [ 237.186220] R13: ffff8801177a2b80 R14: ffff8801177a2bb0 R15: ffff88011287d800 [ 237.186222] FS: 00007f67049b1800(0000) GS:ffff88011ed00000(0000) knlGS:0000000000000000 [ 237.186223] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 237.186225] CR2: 00007f3e1de80000 CR3: 0000000118a18000 CR4: 00000000000007e0 [ 237.186226] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 237.186227] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 237.186229] Process umount (pid: 3063, threadinfo ffff8801181ae000, task ffff880110fbc440) [ 237.186230] Stack: [ 237.186231] ffff88011287db50 ffff88011873b780 ffff88011287d800 ffffffffa021d3c0 [ 237.186233] ffff8801181afdd8 ffffffff8116de93 0000000000000001 ffff88011287d800 [ 237.186235] ffff8801181afe08 ffffffff811583bc ffff88011873b820 0000000000000015 [ 237.186238] Call Trace: [ 237.186241] [] shrink_dcache_for_umount+0x33/0x60 [ 237.186244] [] generic_shutdown_super+0x2c/0xf0 [ 237.186247] [] kill_anon_super+0x16/0x30 [ 237.186249] [] kill_litter_super+0x27/0x30 [ 237.186265] [] rpc_kill_sb+0x99/0xc0 [sunrpc] [ 237.186268] [] deactivate_locked_super+0x3c/0xa0 [ 237.186270] [] deactivate_super+0x4e/0x70 [ 237.186273] [] mntput_no_expire+0x106/0x160 [ 237.186276] [] sys_umount+0x6e/0x3b0 [ 237.186279] [] system_call_fastpath+0x1a/0x1f [ 237.186280] Code: 00 00 48 8b 40 28 4c 8b 08 48 8b 43 30 48 85 c0 74 04 48 8b 50 40 48 89 34 24 48 c7 c7 48 69 7c 81 48 89 de 31 c0 e8 09 62 40 00 <0f> 0b 0f 0b 66 0f 1f 44 00 00 55 48 89 e5 41 54 53 66 66 66 66 [ 237.186301] RIP [] shrink_dcache_for_umount_subtree+0x1e6/0x1f0 [ 237.186303] RSP [ 237.186320] ---[ end trace 74629a120592ec3c ]--- [ 238.707925] mtrr: no MTRR for f9000000,e00000 found [ 245.162939] imon:send_packet: task interrupted [ 245.218338] nfsd: last server has exited, flushing export cache