Arch Linux

numand46

Member

From: Istanbul/Turkey

Registered: 2011-04-21

Posts: 9

[SOLVED]WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0x9b/0xd0()

Hi,

First of all, my native language is not English so if I write something wrong, please excuse me.

I have been getting a warning that is saying " WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0x9b/0xd0()" in

dmesg

output. Alsa there are other messages, that might be related this warning, saying

sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:1e.0/0000:06:09.4/microamps_requested_0000:06:09.4-vmmc'
create_regulator: dummy: could not add regulator_dev requested microamps sysfs entry
 mmc1: no vmmc regulator found

I searched this forum and Arch Bugs by entering "sysfs_add_one", "cannot create duplicate filename", "create_regulator", "regulator_dev", "no vmmc regulator found" key words and I could not find anything related the warning that I got. Only this forum thread and this message on lkml.org are came to my notice but they did not help.

The device that is pointed in

sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:1e.0/0000:06:09.4/microamps_requested_0000:06:09.4-vmmc'

message is

06:09.4 SD Host controller [0805]: Texas Instruments PCI6411/6421/6611/6621/7411/7421/7611/7621 Secure Digital Controller [104c:8034]
	Subsystem: Wistron Corp. Device [17c0:3007]
	Flags: bus master, medium devsel, latency 57, IRQ 22
	Memory at b8009400 (32-bit, non-prefetchable) [size=256]
	Memory at b8009000 (32-bit, non-prefetchable) [size=256]
	Memory at b8007400 (32-bit, non-prefetchable) [size=256]
	Capabilities: <access denied>
	Kernel driver in use: sdhci-pci
	Kernel modules: sdhci-pci

SD Host controller. When I plug an sd card, I got

tifm_core: MMC/SD card detected in socket 0:3
 mmc3: new SD card at address e624
 mmcblk0: mmc3:e624 SU512 483 MiB (ro)
mmcblk0: p1

messages and I can mount it. 

So, I really do not understand what that warning says and what to do about it. Could you help me to what to do about this warning?

Here is some informations:
dmesg output
lshw output

uname -a
Linux arch 3.1.6-1-ARCH #1 SMP PREEMPT Thu Dec 22 08:52:33 UTC 2011 i686 Intel(R) Pentium(R) M processor 1.73GHz GenuineIntel GNU/Linux

sudo pacman -Qi linux 
Name           : linux
Version        : 3.1.6-1
URL            : http://www.kernel.org/
Licenses       : GPL2
Groups         : base
Provides       : kernel26
Depends On     : coreutils  linux-firmware  module-init-tools>=3.16  mkinitcpio>=0.7
Optional Deps  : crda: to set the correct wireless channels of your country
Required By    : None
Conflicts With : kernel26
Replaces       : kernel26
Installed Size : 58944.00 K
Packager       : Tobias Powalowski <tpowa@archlinux.org>
Architecture   : i686
Build Date     : Thu Dec 22 10:58:02 2011
Install Date   : Sat Dec 31 19:55:45 2011
Install Reason : Explicitly installed
Install Script : Yes
Description    : The Linux Kernel and modules

Regards.

Last edited by numand46 (2012-04-11 14:42:51)

numand46

Member

From: Istanbul/Turkey

Registered: 2011-04-21

Posts: 9

Re: [SOLVED]WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0x9b/0xd0()

I reported this warning to the lkml.org. I think that I should wait until it is solved.

link to the lkml.org report

İt was fixed.

Last edited by numand46 (2012-04-11 14:42:19)