PROBLEM: syslog outputs kernel errors when pppd is transfering data and system/connection performance is low

From: Papadomitsos Panagiotis
Date: Sat Oct 11 2003 - 20:51:09 EST

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Whenever I connect to the internet via dial-up (ISDN USB TA) I get the
following syslog output (continuesely) whenever there is ppp I/O activity :

Badness in local_bh_enable at kernel/softirq.c:121 Call Trace:
[<c01220ec>] local_bh_enable+0x8c/0x90
[<c02a4852>] ppp_asynctty_receive+0x62/0xb0
[<c026df27>] flush_to_ldisc+0xa7/0x120
[<c02fadcf>] acm_read_bulk+0xbf/0x140
[<c02eb6f9>] usb_hcd_giveback_urb+0x29/0x50
[<c02f9a1c>] dl_done_list+0x11c/0x130
[<c02fa41f>] ohci_irq+0xef/0x160
[<c02eb756>] usb_hcd_irq+0x36/0x60
[<c010b62a>] handle_IRQ_event+0x3a/0x70
[<c010b9b7>] do_IRQ+0x97/0x140
[<c0106ef0>] default_idle+0x0/0x30
[<c0105000>] _stext+0x0/0x60
[<c0109ce4>] common_interrupt+0x18/0x20
[<c0106ef0>] default_idle+0x0/0x30
[<c0105000>] _stext+0x0/0x60
[<c0106f14>] default_idle+0x24/0x30
[<c0106f90>] cpu_idle+0x30/0x40
[<c04c66f5>] start_kernel+0x155/0x170
[<c04c6460>] unknown_bootoption+0x0/0x100

The system becomes very slow (almost unresponsive) and the connection speed
is very low (instead of 7.5 kb/s I am getting aroun 2-3 kb/s). I tried to
disable acpi but the results where the same. pppd worked perfectly with my
USB-ISDN-TA on 2.4.22-ac4 (but that doesn't say much anyway). If I close the
pppd the system returns to a stable state and the syslog no more outputs
kernel errors. I include my kernel configuration file as an attachment (the
message is long enough; we don't need more lines ;-) ).

Installed software (maybe relative to the problem): pppd 2.4.1, acpid 1.0.2,
devfsd 1.3.25

/proc/version: Linux version 2.6.0-test7 (root@euler) (gcc version 3.2.3) #1
Sat Oct 11 17:39:26 EEST 2003
#Note : I had the same problem with 2.6.0-test6

part of my dmesg (the only thing that seems as an error):

hub 2-0:1.0: new USB device on port 1, assigned address 2
drivers/usb/class/cdc-acm.c: ttyACM0: USB ACM device
drivers/usb/core/usb.c: acm driver booted <NULL> off interface dfafa740
acm: probe of 2-1:1.1 failed with error -5

/proc/cpuinfo:

processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 8
model name : AMD Athlon(tm) XP 2600+
stepping : 1
cpu MHz : 2087.865
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov
pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
bogomips : 4120.57

/proc/modules:

nvidia 1706156 0 - Live 0xe0b26000
nls_utf8 1984 2 - Live 0xe091f000

/proc/ioports:

0000-001f : dma1
0020-0021 : pic1
0040-005f : timer
0060-006f : keyboard
0070-0077 : rtc
0080-008f : dma page reg
00a0-00a1 : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
0376-0376 : ide1
0378-037a : parport0
037b-037f : parport0
03c0-03df : vga+
03f6-03f6 : ide0
0cf8-0cff : PCI conf1
5000-5007 : nForce2 SMBus
5500-5507 : nForce2 SMBus
c000-cfff : PCI Bus #01
c000-c03f : 0000:01:09.0
c000-c01f : EMU10K1
c400-c407 : 0000:01:09.1
d000-dfff : PCI Bus #02
d000-d07f : 0000:02:01.0
d000-d07f : 0000:02:01.0
e000-e01f : 0000:00:01.1
f000-f00f : 0000:00:09.0
f000-f007 : ide0
f008-f00f : ide1

/proc/iomem:

00000000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000d4000-000d47ff : Extension ROM
000f0000-000fffff : System ROM
00100000-1ffeffff : System RAM
00100000-003d7204 : Kernel code
003d7205-004c353f : Kernel data
1fff0000-1fff2fff : ACPI Non-volatile Storage
1fff3000-1fffffff : ACPI Tables
d0000000-d7ffffff : 0000:00:00.0
d8000000-dfffffff : PCI Bus #03
d8000000-dfffffff : 0000:03:00.0
e0000000-e1ffffff : PCI Bus #02
e1000000-e100007f : 0000:02:01.0
e2000000-e3ffffff : PCI Bus #03
e2000000-e2ffffff : 0000:03:00.0
e4000000-e4ffffff : PCI Bus #01
e4000000-e4003fff : 0000:01:09.2
e4004000-e40047ff : 0000:01:09.2
e4004000-e40047ff : ohci1394
e5000000-e5000fff : 0000:00:02.1
e5000000-e5000fff : ohci-hcd
e5001000-e50010ff : 0000:00:02.2
e5001000-e50010ff : ehci_hcd
e5002000-e5002fff : 0000:00:02.0
e5002000-e5002fff : ohci-hcd
fec00000-fec00fff : reserved
fee00000-fee00fff : reserved
ffff0000-ffffffff : reserved

lspci -vvv:

00:00.0 Host bridge: nVidia Corporation: Unknown device 01e0 (rev a2)
Subsystem: Asustek Computer, Inc.: Unknown device 80ac
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0
Region 0: Memory at d0000000 (32-bit, prefetchable) [size=128M]
Capabilities: [40] AGP version 3.0
Status: RQ=32 Iso- ArqSz=2 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW+
AGP3+ Rate=x4,x8
Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=x4
Capabilities: [60] #08 [2001]

00:00.1 RAM memory: nVidia Corporation: Unknown device 01eb (rev a2)
Subsystem: nVidia Corporation: Unknown device 0c17
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-

00:00.2 RAM memory: nVidia Corporation: Unknown device 01ee (rev a2)
Subsystem: nVidia Corporation: Unknown device 0c17
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-

00:00.3 RAM memory: nVidia Corporation: Unknown device 01ed (rev a2)
Subsystem: nVidia Corporation: Unknown device 0c17
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-

00:00.4 RAM memory: nVidia Corporation: Unknown device 01ec (rev a2)
Subsystem: nVidia Corporation: Unknown device 0c17
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-

00:00.5 RAM memory: nVidia Corporation: Unknown device 01ef (rev a2)
Subsystem: nVidia Corporation: Unknown device 0c17
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-

00:01.0 ISA bridge: nVidia Corporation nForce2 ISA Bridge (rev a3)
Subsystem: Asustek Computer, Inc. A7N8X Mainboard
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0
Capabilities: [48] #08 [01e1]

00:01.1 SMBus: nVidia Corporation nForce2 SMBus (MCP) (rev a2)
Subsystem: Asustek Computer, Inc.: Unknown device 0c11
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Interrupt: pin A routed to IRQ 23
Region 0: I/O ports at e000 [size=32]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:02.0 USB Controller: nVidia Corporation nForce2 USB Controller (rev a3)
(prog-if 10 [OHCI])
Subsystem: Asustek Computer, Inc. A7N8X Mainboard
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0 (750ns min, 250ns max)
Interrupt: pin A routed to IRQ 20
Region 0: Memory at e5002000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:02.1 USB Controller: nVidia Corporation nForce2 USB Controller (rev a3)
(prog-if 10 [OHCI])
Subsystem: Asustek Computer, Inc. A7N8X Mainboard
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0 (750ns min, 250ns max)
Interrupt: pin B routed to IRQ 22
Region 0: Memory at e5000000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:02.2 USB Controller: nVidia Corporation nForce2 USB Controller (rev a3)
(prog-if 20 [EHCI])
Subsystem: Asustek Computer, Inc. A7N8X Mainboard
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0 (750ns min, 250ns max)
Interrupt: pin C routed to IRQ 21
Region 0: Memory at e5001000 (32-bit, non-prefetchable) [size=256]
Capabilities: [44] #0a [2080]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:08.0 PCI bridge: nVidia Corporation: Unknown device 006c (rev a3)
(prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: e4000000-e4ffffff
Prefetchable memory behind bridge: fff00000-000fffff
BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-

00:09.0 IDE interface: nVidia Corporation nForce2 IDE (rev a2) (prog-if 8a
[Master SecP PriP])
Subsystem: Asustek Computer, Inc.: Unknown device 0c11
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0 (750ns min, 250ns max)
Region 4: I/O ports at f000 [size=16]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:0c.0 PCI bridge: nVidia Corporation: Unknown device 006d (rev a3)
(prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=32
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: e0000000-e1ffffff
Prefetchable memory behind bridge: fff00000-000fffff
BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-

00:1e.0 PCI bridge: nVidia Corporation nForce2 AGP (rev a2) (prog-if 00
[Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 32
Bus: primary=00, secondary=03, subordinate=03, sec-latency=32
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: e2000000-e3ffffff
Prefetchable memory behind bridge: d8000000-dfffffff
BridgeCtl: Parity- SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B-

01:09.0 Multimedia audio controller: Creative Labs SB Audigy (rev 04)
Subsystem: Creative Labs: Unknown device 1002
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 32 (500ns min, 5000ns max)
Interrupt: pin A routed to IRQ 17
Region 0: I/O ports at c000 [size=64]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

01:09.1 Input device controller: Creative Labs SB Audigy MIDI/Game port (rev
04)
Subsystem: Creative Labs: Unknown device 0060
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 32
Region 0: I/O ports at c400 [size=8]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

01:09.2 FireWire (IEEE 1394): Creative Labs SB Audigy FireWire Port (rev 04)
(prog-if 10 [OHCI])
Subsystem: Creative Labs SB Audigy FireWire Port
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 32 (500ns min, 1000ns max), cache line size 08
Interrupt: pin B routed to IRQ 18
Region 0: Memory at e4004000 (32-bit, non-prefetchable) [size=2K]
Region 1: Memory at e4000000 (32-bit, non-prefetchable) [size=16K]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME+

02:01.0 Ethernet controller: 3Com Corporation 3C920B-EMB Integrated Fast
Ethernet Controller (rev 40)
Subsystem: Asustek Computer, Inc.: Unknown device 80ab
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 32 (2500ns min, 2500ns max), cache line size 08
Interrupt: pin A routed to IRQ 21
Region 0: I/O ports at d000 [size=128]
Region 1: Memory at e1000000 (32-bit, non-prefetchable) [size=128]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=2 PME-

03:00.0 VGA compatible controller: nVidia Corporation NV28 [GeForce4 Ti 4200
AGP 8x] (rev a1) (prog-if 00 [VGA])
Subsystem: Asustek Computer, Inc.: Unknown device 808f
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 32 (1250ns min, 250ns max)
Interrupt: pin A routed to IRQ 19
Region 0: Memory at e2000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at d8000000 (32-bit, prefetchable) [size=128M]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [60] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [44] AGP version 3.0
Status: RQ=32 Iso- ArqSz=0 Cal=3 SBA+ ITACoh- GART64- HTrans- 64bit- FW+
AGP3+ Rate=x4,x8
Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=<none>

/proc/scsi/scsi:

Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: PLEXTOR Model: CD-R PX-W4012A Rev: 1.05
Type: CD-ROM ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: Generic Model: STORAGE DEVICE Rev: 0119
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 00 Lun: 01
Vendor: Generic Model: STORAGE DEVICE Rev: 0119
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 00 Lun: 02
Vendor: Generic Model: STORAGE DEVICE Rev: 0119
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 00 Lun: 03
Vendor: Generic Model: STORAGE DEVICE Rev: 0119
Type: Direct-Access ANSI SCSI revision: 02

/proc/interrupts:

CPU0
0: 996928 XT-PIC timer
1: 8950 IO-APIC-edge i8042
2: 0 XT-PIC cascade
8: 1 IO-APIC-edge rtc
9: 0 IO-APIC-level acpi
14: 1510 IO-APIC-edge ide0
15: 23 IO-APIC-edge ide1
17: 0 IO-APIC-level EMU10K1
18: 3 IO-APIC-level ohci1394
20: 99 IO-APIC-level ohci-hcd
21: 167 IO-APIC-level ehci_hcd, eth0
22: 1313 IO-APIC-level ohci-hcd
NMI: 0
LOC: 996844
ERR: 0
MIS: 0

lsusb -vvv:

Bus 003 Device 003: ID 0df7:0620
Language IDs: none (invalicannot get string descriptor 1, error = Broken
pipe(32)
cannot get string descriptor 2, error = Broken pipe(32)

bcdUSB 1.10
bDeviceClass 0 Interface
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0df7
idProduct 0x0620
bcdDevice 0.10
iManufacturer 0
iProduct 0
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 39
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type none
wMaxPacketSize 10
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 64
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 64
bInterval 0
Language IDs: none (invalid length string descriptor 63; len=7)

Bus 003 Device 002: ID 045e:0039 Microsoft Corp. IntelliMouse Optical
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 Interface
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x045e Microsoft Corp.
idProduct 0x0039 IntelliMouse Optical
bcdDevice 3.00
iManufacturer 1 Microsoft
iProduct 3 Microsoft 5-Button Mouse with IntelliEye(TM)
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 34
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Devices
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 2 Mouse
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 0
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 72
cannot get report descriptor
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type none
wMaxPacketSize 4
bInterval 10
Language IDs: (length=4)
0409 English(US)

Bus 003 Device 001: ID 0000:0000 Virtual Hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0000 Virtual
idProduct 0x0000 Hub
bcdDevice 2.06
iManufacturer 3 Linux 2.6.0-test7 ohci-hcd
iProduct 2 OHCI Host Controller
iSerial 1 0000:00:02.1
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x40
Self Powered
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type none
wMaxPacketSize 2
bInterval 255
Language IDs: (length=4)
0409 English(US)

Bus 002 Device 003: ID 045e:000e Microsoft Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.00
bDeviceClass 0 Interface
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x045e Microsoft Corp.
idProduct 0x000e
bcdDevice 0.99
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 34
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
Remote Wakeup
MaxPower 64mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Devices
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.00
bCountryCode 0
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 136
cannot get report descriptor
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type none
wMaxPacketSize 6
bInterval 10
Language IDs: (length=4)
0409 English(US)

Bus 002 Device 002: ID 0bf1:0001
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 2 Communications
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 16
idVendor 0x0bf1
idProduct 0x0001
bcdDevice 1.00
iManufacturer 1 Intracom S.A.
iProduct 2 NetMod USB
iSerial 3 Firmware Ver 1.0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 67
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 2 Communications
bInterfaceSubClass 2 Abstract (modem)
bInterfaceProtocol 1 AT-commands
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type none
wMaxPacketSize 16
bInterval 10
unknown descriptor type: 05 24 00 10 01
unknown descriptor type: 04 24 02 07
unknown descriptor type: 05 24 06 00 01
unknown descriptor type: 05 24 01 03 01
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 10
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 64
bInterval 10
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 64
bInterval 10
Language IDs: (length=4)
0409 English(US)

Bus 002 Device 001: ID 0000:0000 Virtual Hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0000 Virtual
idProduct 0x0000 Hub
bcdDevice 2.06
iManufacturer 3 Linux 2.6.0-test7 ohci-hcd
iProduct 2 OHCI Host Controller
iSerial 1 0000:00:02.0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x40
Self Powered
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type none
wMaxPacketSize 2
bInterval 255
Language IDs: (length=4)
0409 English(US)

Bus 001 Device 002: ID 05dc:b018 Lexar Media, Inc.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 Interface
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x05dc Lexar Media, Inc.
idProduct 0xb018
bcdDevice 1.19
iManufacturer 2 Lexar Media
iProduct 3 Multi-Card Reader
iSerial 4 0000019587
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk (Zip)
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 512
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 512
bInterval 0
Language IDs: (length=4)
0409 English(US)

Bus 001 Device 001: ID 0000:0000 Virtual Hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0
bDeviceProtocol 1
bMaxPacketSize0 8
idVendor 0x0000 Virtual
idProduct 0x0000 Hub
bcdDevice 2.06
iManufacturer 3 Linux 2.6.0-test7 ehci_hcd
iProduct 2 EHCI Host Controller
iSerial 1 0000:00:02.2
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x40
Self Powered
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type none
wMaxPacketSize 2
bInterval 12
Language IDs: (length=4)
0409 English(US)

Attachment: config.tar.bz2
Description: Binary data

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