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Message-ID: <589ee1d0908160656u40672d47i7a7abe9923681f09@mail.gmail.com>
Date: Sun, 16 Aug 2009 14:56:29 +0100
From: Christian Roche <christian.roche.fr@...il.com>
To: linux-kernel@...r.kernel.org
Subject: Oops: sysfs: duplicate filename 'usbdev3.3_ep81' can not be created
Hi there,
I'm encountering a kernel oops when trying to use a USB 3G modem. The
modem is an LG LDU-1900D USB key used in Morocco to access Wana's 3G
network. The modem works fine in Vista but comes with no Linux
drivers. I've seen one similar message in the list archive, but it
seems to be related to another, already corrected bug
(http://www.gossamer-threads.com/lists/linux/kernel/981459#981459).
Does anyone here have an idea ? Thanks to kindly keep me cc'ed, I'm
not subscribed to the list (a tad too technical for me :-)
My system: Linux jimi 2.6.29.6-217.2.3.fc11.i586 #1 SMP Wed Jul 29
15:46:46 EDT 2009 i686 i686 i386 GNU/Linux
The USB key is a dual storage/modem system. When I plug it in at first
things seem to go ok, I get the following messages and I can mount and
access the virtual CRDOM:
=========== cut ===================== cut =====================
usb 3-2: new full speed USB device using uhci_hcd and address 2
usb 3-2: New USB device found, idVendor=1004, idProduct=1000
usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 3-2: Product: USB MMC Storage
usb 3-2: Manufacturer: LG Electronics Inc.
usb 3-2: SerialNumber: 000000000002
usb 3-2: configuration #1 chosen from 1 choice
Initializing USB Mass Storage driver...
scsi4 : SCSI emulation for USB Mass Storage devices
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usb-storage: device found at 2
usb-storage: waiting for device to settle before scanning
usb-storage: device scan complete
scsi 4:0:0:0: CD-ROM LGE EVDO Mass Storage 2.31 PQ: 0 ANSI: 2
sr1: scsi3-mmc drive: 297x/297x
sr 4:0:0:0: Attached scsi CD-ROM sr1
sr 4:0:0:0: Attached scsi generic sg3 type 5
sr1: CDROM (ioctl) error, command: Get configuration 46 00 00 00 00 00
00 00 20 00
sr: Sense Key : No Sense [current]
sr: Add. Sense: No additional sense information
=========== cut ===================== cut =====================
Then I have to use usb_modeswitch to replace the internal storage with
the modem, accorging to this page (in French, sorry):
http://www.experts-libre.com/index.php?post/2008/12/09/Modem-EV-DO-RevA-LG-LDU-1900D
> sb_modeswitch -v 0x1004 -p 0x1000 -m 0x08 -M 55534243c83244ff0000000000000aff554d53434847000000000000000000
The modeswitch goes ok. However that's when I get the kernel oops:
=========== cut ===================== cut =====================
usb 3-2: USB disconnect, address 2
usb 3-2: new full speed USB device using uhci_hcd and address 3
usb 3-2: New USB device found, idVendor=1004, idProduct=6107
usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 3-2: Product: LG EV-DO USB MODEM
usb 3-2: Manufacturer: LG Electronics Inc.
usb 3-2: configuration #1 chosen from 1 choice
------------[ cut here ]------------
WARNING: at fs/sysfs/dir.c:462 sysfs_add_one+0x32/0x3d() (Not tainted)
Hardware name: System Product Name
sysfs: duplicate filename 'usbdev3.3_ep81' can not be created
Modules linked in: usb_storage ipv6 sunrpc cpufreq_ondemand
acpi_cpufreq dm_multipath snd_hda_codec_realtek snd_hda_intel
snd_hda_codec snd_hwdep snd_pcm snd_timer iTCO_wdt snd
iTCO_vendor_support ppdev soundcore snd_page_alloc parport_pc tulip
i2c_i801 atl2 parport asus_atk0110 serio_raw pcspkr hwmon ata_generic
pata_acpi i915 drm i2c_algo_bit i2c_core video output [last unloaded:
scsi_wait_scan]
Pid: 27, comm: khubd Not tainted 2.6.29.6-217.2.3.fc11.i586 #1
Call Trace:
[<c042ebaa>] warn_slowpath+0x7c/0xa4
[<c055e004>] ? put_dec+0x2e/0x104
[<c055a41d>] ? idr_get_empty_slot+0x13c/0x1e7
[<c055a41d>] ? idr_get_empty_slot+0x13c/0x1e7
[<c04aee23>] ? find_inode+0x25/0x5e
[<c04dea64>] ? sysfs_ilookup_test+0x0/0x16
[<c04af9d2>] ? wait_on_inode+0x2f/0x32
[<c04afc23>] ? ifind+0x57/0x6a
[<c04dea64>] ? sysfs_ilookup_test+0x0/0x16
[<c04dec9b>] ? sysfs_find_dirent+0x1b/0x2c
[<c04dee09>] sysfs_add_one+0x32/0x3d
[<c04df95a>] sysfs_do_create_link+0xb0/0x109
[<c04df9d3>] sysfs_create_link+0xf/0x14
[<c05dd9df>] device_add+0x162/0x3f9
[<c05ddc8d>] device_register+0x17/0x1a
[<c06265c2>] usb_create_ep_devs+0x1e6/0x250
[<c06217b4>] create_intf_ep_devs+0x3e/0x53
[<c0622cfc>] usb_set_configuration+0x46c/0x484
[<c0628fff>] generic_probe+0x49/0x82
[<c0622edd>] usb_probe_device+0x39/0x3b
[<c05df4b6>] driver_probe_device+0xa1/0x119
[<c05df5ab>] __device_attach+0xd/0xf
[<c05dec57>] bus_for_each_drv+0x42/0x6c
[<c05df629>] device_attach+0x58/0x6c
[<c05df59e>] ? __device_attach+0x0/0xf
[<c05dead2>] bus_attach_device+0x26/0x55
[<c05ddb50>] device_add+0x2d3/0x3f9
[<c07060cc>] ? printk+0x14/0x18
[<c061dcfa>] usb_new_device+0xfd/0x146
[<c061ec99>] hub_thread+0x75e/0xb85
[<c0402aa1>] ? __switch_to+0x7b/0xfd
[<c0440029>] ? autoremove_wake_function+0x0/0x34
[<c061e53b>] ? hub_thread+0x0/0xb85
[<c043fd50>] kthread+0x41/0x65
[<c043fd0f>] ? kthread+0x0/0x65
[<c0404877>] kernel_thread_helper+0x7/0x10
---[ end trace c2178fb0797924f2 ]---
------------[ cut here ]------------
WARNING: at fs/sysfs/dir.c:462 sysfs_add_one+0x32/0x3d() (Tainted: G W )
Hardware name: System Product Name
sysfs: duplicate filename 'usbdev3.3_ep81' can not be created
Modules linked in: usb_storage ipv6 sunrpc cpufreq_ondemand
acpi_cpufreq dm_multipath snd_hda_codec_realtek snd_hda_intel
snd_hda_codec snd_hwdep snd_pcm snd_timer iTCO_wdt snd
iTCO_vendor_support ppdev soundcore snd_page_alloc parport_pc tulip
i2c_i801 atl2 parport asus_atk0110 serio_raw pcspkr hwmon ata_generic
pata_acpi i915 drm i2c_algo_bit i2c_core video output [last unloaded:
scsi_wait_scan]
Pid: 27, comm: khubd Tainted: G W 2.6.29.6-217.2.3.fc11.i586 #1
Call Trace:
[<c042ebaa>] warn_slowpath+0x7c/0xa4
[<c0422a79>] ? set_next_entity+0x90/0xfc
[<c055e004>] ? put_dec+0x2e/0x104
[<c042a00d>] ? finish_task_switch+0x34/0x9f
[<c055a41d>] ? idr_get_empty_slot+0x13c/0x1e7
[<c055a41d>] ? idr_get_empty_slot+0x13c/0x1e7
[<c04aee23>] ? find_inode+0x25/0x5e
[<c04dea64>] ? sysfs_ilookup_test+0x0/0x16
[<c04af9d2>] ? wait_on_inode+0x2f/0x32
[<c04afc23>] ? ifind+0x57/0x6a
[<c04dea64>] ? sysfs_ilookup_test+0x0/0x16
[<c04dec9b>] ? sysfs_find_dirent+0x1b/0x2c
[<c04dee09>] sysfs_add_one+0x32/0x3d
[<c04df95a>] sysfs_do_create_link+0xb0/0x109
[<c04df9d3>] sysfs_create_link+0xf/0x14
[<c05dd9df>] device_add+0x162/0x3f9
[<c05ddc8d>] device_register+0x17/0x1a
[<c06265c2>] usb_create_ep_devs+0x1e6/0x250
[<c06217b4>] create_intf_ep_devs+0x3e/0x53
[<c0622cfc>] usb_set_configuration+0x46c/0x484
[<c0628fff>] generic_probe+0x49/0x82
[<c0622edd>] usb_probe_device+0x39/0x3b
[<c05df4b6>] driver_probe_device+0xa1/0x119
[<c05df5ab>] __device_attach+0xd/0xf
[<c05dec57>] bus_for_each_drv+0x42/0x6c
[<c05df629>] device_attach+0x58/0x6c
[<c05df59e>] ? __device_attach+0x0/0xf
[<c05dead2>] bus_attach_device+0x26/0x55
[<c05ddb50>] device_add+0x2d3/0x3f9
[<c07060cc>] ? printk+0x14/0x18
[<c061dcfa>] usb_new_device+0xfd/0x146
[<c061ec99>] hub_thread+0x75e/0xb85
[<c0402aa1>] ? __switch_to+0x7b/0xfd
[<c0440029>] ? autoremove_wake_function+0x0/0x34
[<c061e53b>] ? hub_thread+0x0/0xb85
[<c043fd50>] kthread+0x41/0x65
[<c043fd0f>] ? kthread+0x0/0x65
[<c0404877>] kernel_thread_helper+0x7/0x10
---[ end trace c2178fb0797924f3 ]---
cdc_acm 3-2:1.0: ttyACM0: USB ACM device
cdc_acm 3-2:1.2: ttyACM1: USB ACM device
cdc_acm 3-2:1.4: ttyACM2: USB ACM device
usbcore: registered new interface driver cdc_acm
cdc_acm: v0.26:USB Abstract Control Model driver for USB modems and
ISDN adapters
=========== cut ===================== cut =====================
Afterwards the /dev/ttyACM0 port doesn't work, always comes back with
some "Input/Output error".
Here's the output of lsusb -v in case it might help:
=========== cut ===================== cut =====================
Bus 003 Device 003: ID 1004:6107 LG Electronics, Inc.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 2 Communications
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x1004 LG Electronics, Inc.
idProduct 0x6107
bcdDevice 0.00
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 183
bNumInterfaces 6
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 2 Communications
bInterfaceSubClass 2 Abstract (modem)
bInterfaceProtocol 1 AT-commands (v.25ter)
iInterface 0
CDC Header:
bcdCDC 1.09
CDC Call Management:
bmCapabilities 0x03
call management
use DataInterface
bDataInterface 1
CDC ACM:
bmCapabilities 0x0f
connection notifications
sends break
line coding and serial state
get/set/clear comm features
CDC Union:
bMasterInterface 0
bSlaveInterface 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 32
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 10 CDC Data
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0
iInterface 3
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 2 Communications
bInterfaceSubClass 2 Abstract (modem)
bInterfaceProtocol 1 AT-commands (v.25ter)
iInterface 0
CDC Header:
bcdCDC 1.09
CDC Call Management:
bmCapabilities 0x03
call management
use DataInterface
bDataInterface 3
CDC ACM:
bmCapabilities 0x0f
connection notifications
sends break
line coding and serial state
get/set/clear comm features
CDC Union:
bMasterInterface 2
bSlaveInterface 3
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 32
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 10 CDC Data
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0
iInterface 3
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 4
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 2 Communications
bInterfaceSubClass 2 Abstract (modem)
bInterfaceProtocol 1 AT-commands (v.25ter)
iInterface 0
CDC Header:
bcdCDC 1.09
CDC Call Management:
bmCapabilities 0x03
call management
use DataInterface
bDataInterface 5
CDC ACM:
bmCapabilities 0x0f
connection notifications
sends break
line coding and serial state
get/set/clear comm features
CDC Union:
bMasterInterface 4
bSlaveInterface 5
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 32
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 5
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 10 CDC Data
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0
iInterface 3
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x86 EP 6 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x06 EP 6 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
=========== cut ===================== cut =====================
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