linux-kernel - [ubuntu quantal] WARNING at __list

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Date:	Sun, 30 Sep 2012 12:41:11 +0800
From:	Fengguang Wu <fengguang.wu@...el.com>
To:	Rob Herring <rob.herring@...xeda.com>
Cc:	Leann Ogasawara <leann.ogasawara@...onical.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [ubuntu quantal] WARNING at __list_add()

On Sun, Sep 30, 2012 at 12:29:30PM +0800, Fengguang Wu wrote:
> Hi,
> 
> I got the below oops in tree:
> 
>    git://sources.calxeda.com/kernel/linux.git ubuntu-quantal

And:

[   59.993940] VFS: Close: file count is 0
[   60.027192] ------------[ cut here ]------------
[   60.031761] WARNING: at /c/kernel-tests/src/tip/lib/list_debug.c:29 __list_add+0x3d/0xad()
[   60.034934] list_add corruption. next->prev should be prev (ffff88000dbd5658), but was ffffffff810c2c8c. (next=ffff880006b8de00).
[   60.037075] Modules linked in:
[   60.040217] Pid: 44, comm: modprobe Not tainted 3.5.4-00413-g5feeb5e #2253
[   60.042560] Call Trace:
[   60.043470]  [<ffffffff810260e2>] warn_slowpath_common+0x62/0x79
[   60.045429]  [<ffffffff8102618d>] warn_slowpath_fmt+0x41/0x43
[   60.046500]  [<ffffffff810c2c8c>] ? sys_sendfile64+0x8d/0x8d
[   60.048339]  [<ffffffff81145fb8>] __list_add+0x3d/0xad
[   60.049319]  [<ffffffff810c3503>] file_sb_list_add+0x41/0x52
[   60.050372]  [<ffffffff810c13bd>] __dentry_open.isra.20+0xf8/0x276
[   60.052266]  [<ffffffff8111ada0>] ? common_lsm_audit+0x79/0x79
[   60.053335]  [<ffffffff810c1565>] vfs_open+0x2a/0x2c
[   60.055335]  [<ffffffff810c1668>] nameidata_to_filp+0x3d/0x7f
[   60.056402]  [<ffffffff810ce5d9>] do_last+0x795/0x7d9
[   60.058128]  [<ffffffff810ce7f3>] path_openat+0xce/0x36c
[   60.059137]  [<ffffffff81007a6d>] ? native_sched_clock+0x29/0x6f
[   60.060242]  [<ffffffff81007abc>] ? sched_clock+0x9/0xd
[   60.062068]  [<ffffffff810ceb7d>] do_filp_open+0x33/0x81
[   60.063107]  [<ffffffff81249609>] ? _raw_spin_unlock+0x24/0x48
[   60.064982]  [<ffffffff810d9074>] ? alloc_fd+0xe0/0xf2
[   60.065988]  [<ffffffff810c17b3>] do_sys_open+0x109/0x196
[   60.067040]  [<ffffffff810c185c>] sys_open+0x1c/0x1e
[   60.068980]  [<ffffffff8124e6f9>] system_call_fastpath+0x16/0x1b

Thanks,
Fengguang

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