linux-kernel - [LKP] [x86/cacheinfo] 0d55ba46bfb: WARNING: CPU: 31 PID: 1 at fs/sysfs/group.c:102 internal_create

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Date:	Thu, 19 Mar 2015 10:28:50 +0800
From:	Huang Ying <ying.huang@...el.com>
To:	SudeepHolla <sudeep.holla@....com>
Cc:	Borislav Petkov <bp@...e.de>, LKML <linux-kernel@...r.kernel.org>,
	LKP ML <lkp@...org>
Subject: [LKP] [x86/cacheinfo] 0d55ba46bfb: WARNING: CPU: 31 PID: 1 at
 fs/sysfs/group.c:102 internal_create_group+0x151/0x280()

FYI, we noticed the below changes on

git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
commit 0d55ba46bfbee64fd2b492b87bfe2ec172e7b056 ("x86/cacheinfo: Move cacheinfo sysfs code to generic infrastructure")


+------------------------------------------------------+----------+-------------------+
|                                                      | v4.0-rc2 | tip_x86_cacheinfo |
+------------------------------------------------------+----------+-------------------+
| boot_successes                                       | 851      | 10                |
| boot_failures                                        | 19       | 9                 |
| BUG:kernel_test_crashed                              | 10       |                   |
| BUG:kernel_boot_oversize                             | 4        |                   |
| BUG:kernel_test_oversize                             | 2        |                   |
| BUG:kernel_test_hang                                 | 3        |                   |
| WARNING:at_fs/sysfs/group.c:#internal_create_group() | 0        | 9                 |
| backtrace:cache_add_dev                              | 0        | 9                 |
| backtrace:cacheinfo_sysfs_init                       | 0        | 9                 |
| backtrace:kernel_init_freeable                       | 0        | 9                 |
+------------------------------------------------------+----------+-------------------+


[    8.700596] Non-volatile memory driver v1.3
[    8.705684] Linux agpgart interface v0.103
[    8.711362] ------------[ cut here ]------------
[    8.716832] WARNING: CPU: 31 PID: 1 at fs/sysfs/group.c:102 internal_create_group+0x151/0x280()
[    8.729104] sysfs: (bin_)attrs not set by subsystem for group: index3/
[    8.736714] Modules linked in:
[    8.740520] CPU: 31 PID: 1 Comm: swapper/0 Not tainted 4.0.0-rc4-next-20150317 #1
[    8.754247] Hardware name: Intel Corporation S2600CP/S2600CP, BIOS SE5C600.86B.99.99.x036.091920111209 09/19/2011
[    8.766240]  ffffffff81baac48 ffff88042d64fb78 ffffffff818b2806 0000000000003fae
[    8.775396]  ffff88042d64fbc8 ffff88042d64fbb8 ffffffff8107293a ffff88042d64fba8
[    8.784545]  0000000000000001 ffffffff81ddc9e0 0000000000000000 ffffffff81cca9c0
[    8.793684] Call Trace:
[    8.796724]  [<ffffffff818b2806>] dump_stack+0x4c/0x65
[    8.802777]  [<ffffffff8107293a>] warn_slowpath_common+0x8a/0xc0
[    8.809789]  [<ffffffff810729b6>] warn_slowpath_fmt+0x46/0x50
[    8.816515]  [<ffffffff8140ee0d>] ? ida_get_new_above+0x1dd/0x210
[    8.823624]  [<ffffffff81265871>] internal_create_group+0x151/0x280
[    8.830929]  [<ffffffff81265ad9>] sysfs_create_groups+0x49/0xa0
[    8.837855]  [<ffffffff8155078a>] device_add+0x3fa/0x670
[    8.844094]  [<ffffffff81556750>] cpu_device_create+0xc0/0xe0
[    8.850823]  [<ffffffff811c8aae>] ? __kmalloc+0x27e/0x2b0
[    8.857153]  [<ffffffff8140ee0d>] ? ida_get_new_above+0x1dd/0x210
[    8.864271]  [<ffffffff81559852>] cache_add_dev+0x182/0x230
[    8.870807]  [<ffffffff81ee9eb5>] cacheinfo_sysfs_init+0x53/0x95
[    8.877821]  [<ffffffff81ee9e62>] ? container_dev_init+0x2f/0x2f
[    8.884848]  [<ffffffff81002130>] do_one_initcall+0xc0/0x1f0
[    8.891489]  [<ffffffff81e93169>] kernel_init_freeable+0x1bb/0x248
[    8.898705]  [<ffffffff818a5eb0>] ? rest_init+0x90/0x90
[    8.904841]  [<ffffffff818a5ebe>] kernel_init+0xe/0xf0
[    8.910899]  [<ffffffff818bb213>] ret_from_fork+0x53/0x80
[    8.917229]  [<ffffffff818a5eb0>] ? rest_init+0x90/0x90
[    8.923374] ---[ end trace 316d11c18159d99b ]---
[    8.928923] error populating cacheinfo..cpu0



Thanks,
Ying Huang


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