From: Neil Salstrom <salstrom@paintedocean.com>
To: Jan Kara <jack@suse.cz>
Cc: linux-kernel@vger.kernel.org
Subject: Re: PROBLEM: 3.6.0 kernel BUG at fs/dcache.c:967 during shutdown / restart
Date: Mon, 08 Oct 2012 17:10:52 -0700 [thread overview]
Message-ID: <50736B8C.3010902@paintedocean.com> (raw)
In-Reply-To: <20121008171424.GA14767@quack.suse.cz>
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:[<ffffffff8116c606>] [<ffffffff8116c606>]
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] [<ffffffff8116de93>] shrink_dcache_for_umount+0x33/0x60
[ 237.186244] [<ffffffff811583bc>] generic_shutdown_super+0x2c/0xf0
[ 237.186247] [<ffffffff81158516>] kill_anon_super+0x16/0x30
[ 237.186249] [<ffffffff81158557>] kill_litter_super+0x27/0x30
[ 237.186265] [<ffffffffa02174a9>] rpc_kill_sb+0x99/0xc0 [sunrpc]
[ 237.186268] [<ffffffff8115877c>] deactivate_locked_super+0x3c/0xa0
[ 237.186270] [<ffffffff8115938e>] deactivate_super+0x4e/0x70
[ 237.186273] [<ffffffff81174416>] mntput_no_expire+0x106/0x160
[ 237.186276] [<ffffffff8117543e>] sys_umount+0x6e/0x3b0
[ 237.186279] [<ffffffff81583d96>] 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 [<ffffffff8116c606>]
shrink_dcache_for_umount_subtree+0x1e6/0x1f0
[ 237.186303] RSP <ffff8801181afd98>
[ 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
next prev parent reply other threads:[~2012-10-09 0:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CA+W8ZyK4NYGUtXce-dP69J8L6WJ81_fOOXWrMebK3BO_K7FozA@mail.gmail.com>
2012-10-06 17:20 ` PROBLEM: 3.6.0 kernel BUG at fs/dcache.c:967 during shutdown / restart Neil Salstrom
2012-10-08 17:14 ` Jan Kara
2012-10-09 0:10 ` Neil Salstrom [this message]
2012-10-09 7:54 ` Jan Kara
2012-10-09 8:05 ` Stanislav Kinsbursky
[not found] ` <CA+W8Zy+Q6T09+WRooiYghXoKorBHzcHdVfHygPSGWG_PkUz=fw@mail.gmail.com>
2012-10-15 12:32 ` Fwd: " Miklos Szeredi
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