linux-kernel - [lkp] [list] 4b29978299: dmesg.WARNING:at_lib/list_debug.c:#__list

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Message-ID: <877fl96ucv.fsf@yhuang-dev.intel.com>
Date:	Mon, 23 Nov 2015 15:35:44 +0800
From:	kernel test robot <ying.huang@...ux.intel.com>
TO:	Dan Williams <dan.j.williams@...el.com>
CC:	LKML <linux-kernel@...r.kernel.org>
Subject: [lkp] [list] 4b29978299:
 dmesg.WARNING:at_lib/list_debug.c:#__list_add()

FYI, we noticed the below changes on

https://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm.git libnvdimm-pending
commit 4b29978299ae61b278fcbc6cf393c85265d78517 ("list: introduce list_del_poison()")


[   29.194068] Write protecting the kernel text: 7156k
[   29.195054] Write protecting the kernel read-only data: 3856k
[   29.202249] ------------[ cut here ]------------
[   29.202806] WARNING: CPU: 1 PID: 79 at lib/list_debug.c:27 __list_add+0x125/0x162()
[   29.203874] list_add attempted on force-poisoned entry
[   29.204453] Modules linked in:
[   29.204837] CPU: 1 PID: 79 Comm: init Not tainted 4.4.0-rc1-00027-g4b29978 #1
[   29.205646]  00000000 00000000 50631de4 412ebc69 50631e0c 50631dfc 4107548d 4132fb1a
[   29.206726]  50fb9768 40014460 50fb9728 50631e14 410755a2 00000009 50631e0c 41a3ef22
[   29.207764]  50631e28 50631e34 4132fb1a 41a3ed35 0000001b 41a3ef22 50fb9760 50622380
[   29.208885] Call Trace:
[   29.209180]  [<412ebc69>] dump_stack+0xb8/0x108
[   29.209708]  [<4107548d>] warn_slowpath_common+0xdb/0x11c
[   29.210353]  [<4132fb1a>] ? __list_add+0x125/0x162
[   29.210921]  [<410755a2>] warn_slowpath_fmt+0x42/0x54
[   29.211520]  [<4132fb1a>] __list_add+0x125/0x162
[   29.212057]  [<411ae802>] list_add+0x18/0x28
[   29.212552]  [<411ae839>] anon_vma_chain_link+0x27/0x51
[   29.213143]  [<411b0afc>] anon_vma_clone+0xda/0x1ae
[   29.226792]  [<411b0c17>] anon_vma_fork+0x47/0x1a9
[   29.227348]  [<41165c91>] dup_mmap+0x253/0x54d
[   29.227873]  [<41073296>] copy_process+0x1000/0x1da6
[   29.228440]  [<4107425a>] _do_fork+0xc4/0x4f0
[   29.228955]  [<4108d546>] ? SyS_rt_sigaction+0xd8/0x165
[   29.229562]  [<41074762>] SyS_clone+0x35/0x61
[   29.230093]  [<41001d04>] do_syscall_32_irqs_on+0x92/0xc0
[   29.230753]  [<416fab0a>] entry_INT80_32+0x2a/0x2a
[   29.231299] ---[ end trace 28bcbeb98cb33b0e ]---
[   29.231881] ------------[ cut here ]------------


Thanks,
Ying Huang

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