[Bug 603718] [NEW] sysfs: cannot create duplicate filename '/class/net/bnep0'

Fri Jul 9 18:32:47 UTC 2010

Public bug reported:

This issue happens when I try to connect to an iPhone 3GS with iOS 4.0
via bluetooth to use internet connection sharing from the mobile phone
to my Samsung NC10 laptop. Note that this ONLY happens on the second and
subsequent connections, the first connection (after reboot) always
works.

The relevant part in syslog is here:

Jul  9 17:34:11 nc10 kernel: [  311.814722] ------------[ cut here ]------------
Jul  9 17:34:11 nc10 kernel: [  311.814749] WARNING: at /build/buildd/linux-2.6.35/fs/sysfs/dir.c:451 sysfs_add_one+0xa1/0x110()
Jul  9 17:34:11 nc10 kernel: [  311.814757] Hardware name: NC10                       
Jul  9 17:34:11 nc10 kernel: [  311.814763] sysfs: cannot create duplicate filename '/class/net/bnep0'
Jul  9 17:34:11 nc10 kernel: [  311.814769] Modules linked in: binfmt_misc rfcomm parport_pc ppdev sco bridge stp bnep l2cap vga16fb vgastate snd_hda_codec_realtek arc4 i915 snd_hda_intel snd_hda_codec snd_hwdep snd_pcm joydev snd_seq_midi snd_rawmidi ath5k drm_kms_helper snd_seq_midi_event mac80211 snd_seq drm ath snd_timer uvcvideo snd_seq_device btusb cfg80211 bluetooth intel_agp cdc_acm videodev psmouse i2c_algo_bit v4l1_compat snd serio_raw video agpgart led_class soundcore output snd_page_alloc lp parport sky2
Jul  9 17:34:11 nc10 kernel: [  311.814883] Pid: 1034, comm: bluetoothd Tainted: G        W   2.6.35-7-generic #11-Ubuntu
Jul  9 17:34:11 nc10 kernel: [  311.814891] Call Trace:
Jul  9 17:34:11 nc10 kernel: [  311.814912]  [<c014ab42>] warn_slowpath_common+0x72/0xa0
Jul  9 17:34:11 nc10 kernel: [  311.814924]  [<c0271c61>] ? sysfs_add_one+0xa1/0x110
Jul  9 17:34:11 nc10 kernel: [  311.814935]  [<c0271c61>] ? sysfs_add_one+0xa1/0x110
Jul  9 17:34:11 nc10 kernel: [  311.814948]  [<c014ac13>] warn_slowpath_fmt+0x33/0x40
Jul  9 17:34:11 nc10 kernel: [  311.814960]  [<c0271c61>] sysfs_add_one+0xa1/0x110
Jul  9 17:34:11 nc10 kernel: [  311.814972]  [<c02722e9>] sysfs_do_create_link+0xa9/0x150
Jul  9 17:34:11 nc10 kernel: [  311.814983]  [<c02723c7>] sysfs_create_link+0x17/0x20
Jul  9 17:34:11 nc10 kernel: [  311.814997]  [<c04019dd>] device_add_class_symlinks+0x5d/0xd0
Jul  9 17:34:11 nc10 kernel: [  311.815009]  [<c040264f>] device_add+0x1cf/0x3b0
Jul  9 17:34:11 nc10 kernel: [  311.815022]  [<c03568c4>] ? kobject_set_name_vargs+0x64/0x70
Jul  9 17:34:11 nc10 kernel: [  311.815035]  [<c050b184>] netdev_register_kobject+0x84/0xd0
Jul  9 17:34:11 nc10 kernel: [  311.815048]  [<c04fb7d7>] register_netdevice+0x207/0x380
Jul  9 17:34:11 nc10 kernel: [  311.815059]  [<c04fb509>] ? dev_alloc_name+0x49/0x70
Jul  9 17:34:11 nc10 bluetoothd[1034]: bnep%d could not be added
Jul  9 17:34:11 nc10 kernel: [  311.815073]  [<c05cb089>] ? mutex_lock+0x19/0x40
Jul  9 17:34:11 nc10 kernel: [  311.815084]  [<c04fb987>] register_netdev+0x37/0x50
Jul  9 17:34:11 nc10 kernel: [  311.815102]  [<f829e49f>] bnep_add_connection+0x24f/0x370 [bnep]
Jul  9 17:34:11 nc10 kernel: [  311.815116]  [<f829f290>] bnep_sock_ioctl+0x100/0x1f0 [bnep]
Jul  9 17:34:11 nc10 kernel: [  311.815128]  [<c035ec4d>] ? _copy_from_user+0x3d/0x130
Jul  9 17:34:11 nc10 kernel: [  311.815140]  [<c05cc516>] ? _raw_spin_unlock_bh+0x16/0x20
Jul  9 17:34:11 nc10 kernel: [  311.815153]  [<c04ec320>] ? release_sock+0xc0/0xe0
Jul  9 17:34:11 nc10 kernel: [  311.815166]  [<c04e868d>] sock_ioctl+0x6d/0x270
Jul  9 17:34:11 nc10 kernel: [  311.815180]  [<c0226972>] vfs_ioctl+0x32/0xb0
Jul  9 17:34:11 nc10 kernel: [  311.815192]  [<c04e8620>] ? sock_ioctl+0x0/0x270
Jul  9 17:34:11 nc10 kernel: [  311.815205]  [<c02271e9>] do_vfs_ioctl+0x79/0x2d0
Jul  9 17:34:11 nc10 kernel: [  311.815216]  [<c02274a7>] sys_ioctl+0x67/0x80
Jul  9 17:34:11 nc10 kernel: [  311.815228]  [<c05cc7dc>] syscall_call+0x7/0xb
Jul  9 17:34:11 nc10 kernel: [  311.815238] ---[ end trace aeeed3963f01a0b6 ]---
Jul  9 17:34:11 nc10 connmand[1045]: bnep setup failed

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-7-generic 2.6.35-7.11
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-7.11-generic 2.6.35-rc4
Uname: Linux 2.6.35-7-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  zyga       1399 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf0340000 irq 43'
   Mixer name	: 'Realtek ALC272'
   Components	: 'HDA:10ec0272,144dca00,00100001'
   Controls      : 17
   Simple ctrls  : 10
Date: Fri Jul  9 17:38:39 2010
HibernationDevice: RESUME=/dev/sda7
InstallationMedia: Ubuntu-Netbook 10.04 "Lucid Lynx" - Release i386 (20100429.4)
MachineType: SAMSUNG ELECTRONICS CO., LTD. NC10
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-7-generic root=UUID=0d2a10f1-a746-4cc2-b60e-acd381a9b839 ro quiet splash
ProcEnviron:
 LANG=pl_PL.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.37
SourcePackage: linux
dmi.bios.date: 09/08/2009
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 11CA.M015.20090908.RHU
dmi.board.name: NC10
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr11CA.M015.20090908.RHU:bd09/08/2009:svnSAMSUNGELECTRONICSCO.,LTD.:pnNC10:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNC10:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
dmi.product.name: NC10
dmi.product.version: Not Applicable
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Tags: apport-bug i386 maverick needs-upstream-testing networking

-- 
sysfs: cannot create duplicate filename '/class/net/bnep0'
https://bugs.launchpad.net/bugs/603718
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