电信EVDO双卡拨号上网的问题
各位高手，帮忙看看，两张华为EC122 3G上网卡通过USB HUB接入到板子，用其中任意一个拨号都成功，但是只要拨上了一张，另一个就不能再拨号了。以上是板子启动过程（在Red Hat 5 PC 机上无问题，移植之后出现此问题，内核是：2.6.32.
U-Boot 1.2.0 (Feb 18 2012 - 20:16:23)
I2C: ready
DRAM:256 MB
MY AMD Flash: 16 MB
In: serial
Out: serial
Err: serial
Arm Clock :- 148MHz
DDR Clock :- 270MHz
Hit any key to stop autoboot:0
TFTP from server 192.168.8.29; our IP address is 192.168.8.66
Filename 'uImage'.
Load address: 0x80700000
Loading: #################################################################
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done
Bytes transferred = 2210580 (21bb14 hex)
Automatic boot of image at addr 0x80700000 ...
## Booting image at 80700000 ...
Image Name: Linux-2.6.32-rc2-davinci1
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2210516 Bytes =2.1 MB
Load Address: 80008000
Entry Point:80008000
Verifying Checksum ... OK
OK
Starting kernel ...
Uncompressing Linux.............................................................
Linux version 2.6.32-rc2-davinci1 (root@xdl-virtual-machine) (gcc version 4.2.32
CPU: ARM926EJ-S revision 5 (ARMv5TEJ), cr=00053177
CPU: VIVT data cache, VIVT instruction cache
Machine: DaVinci DM646x EVM
Memory policy: ECC disabled, Data cache writeback
DaVinci dm6467_rev1.x variant 0x0
Built 1 zonelists in Zone order, mobility grouping on.Total pages: 30480
Kernel command line: mem=120M console=ttyS0,115200n8 noinitrd rw ip=192.168.8.6l
PID hash table entries: 512 (order: -1, 2048 bytes)
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 120MB = 120MB total
Memory: 116920KB available (4136K code, 376K data, 140K init, 0K highmem)
SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Hierarchical RCU implementation.
NR_IRQS:245
Console: colour dummy device 80x30
Calibrating delay loop... 90.31 BogoMIPS (lpj=451584)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
DaVinci: 43 gpio irqs
NET: Registered protocol family 16
MUX: Setting register STSOMUX_DISABLE
PINMUX0 (0x00000000) = 0x40010000 -> 0x40010000
MUX: Setting register STSIMUX_DISABLE
PINMUX0 (0x00000000) = 0x40010000 -> 0x40010000
MUX: Setting register PTSOMUX_DISABLE
PINMUX0 (0x00000000) = 0x40010000 -> 0x40010000
MUX: initialized PTSIMUX_DISABLE
MUX: Setting register PTSIMUX_DISABLE
PINMUX0 (0x00000000) = 0x40010000 -> 0x40000000
MUX: initialized CIR_UART2
MUX: Setting register CIR_UART2
PINMUX1 (0x00000004) = 0x00000004 -> 0x00000024
MUX: initialized ATAEN
MUX: Setting register ATAEN
PINMUX0 (0x00000000) = 0x40000000 -> 0x40000001
<usb_dbg>setup_usb
bio: create slab <bio-0> at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
vpif vpif: vpif probe success
Switching to clocksource timer0_1
musb_hdrc: version 6.0, cppi-dma, host, debug=0
<usb_dbg>musb_init_controller
<usb_dbg>musb_init_controller,has platform_data
musb_hdrc: USB Host mode controller at fec64000 using DMA, IRQ 13
musb_hdrc musb_hdrc: MUSB HDRC host driver
musb_hdrc musb_hdrc: new USB bus registered, assigned bus number 1
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP reno registered
NET: Registered protocol family 1
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
JFFS2 version 2.2. (NAND) 漏 2001-2006 Red Hat, Inc.
msgmni has been set to 228
alg: No test for stdrng (krng)
io scheduler noop registered
io scheduler anticipatory registered (default)
CIR device registered successfully (Major = 253,Minor )
usb 1-1: new high speed USB device using musb_hdrc and address 2
usb 1-1: configuration #1 chosen from 1 choice
hub 1-1:1.0: USB hub found
hub 1-1:1.0: 4 ports detected
usb 1-1.3: new full speed USB device using musb_hdrc and address 3
usb 1-1.3: configuration #1 chosen from 1 choice
usb 1-1.4: new full speed USB device using musb_hdrc and address 4
usb 1-1.4: configuration #1 chosen from 1 choice
UART Debug: Seed Uart entrier Driver.
UART Debug: can't request irq for uart:-16.
Serial: 8250/16550 driver, 3 ports, IRQ sharing disabled
serial8250.0: ttyS0 at MMIO 0x1c20000 (irq = 40) is a ST16654
console enabled
serial8250 serial8250.0: unable to register port at index 1 (IO0 MEM1c20400 IRQ2
serial8250 serial8250.0: unable to register port at index 2 (IO0 MEM1c20800 IRQ2
brd: module loaded
loop: module loaded
at24 1-0050: 32768 byte 24c256 EEPROM (writable)
Uniform Multi-Platform E-IDE driver
ide-gd driver 1.18
ide0: MMIO-DMA
ide0 at 0xfec661f0-0xfec661f7,0xfec663f6 on irq 22
No NAND device found!!!
spi_davinci spi_davinci.0: DaVinci SPI driver in EDMA mode
Using RX channel = 17 , TX channel = 16 and event queue = 3
at25 spi0.0: 32 KByte at25640a eeprom, pagesize 64
spi_davinci spi_davinci.0: Controller at 0xfec66800
PPP generic driver version 2.4.2
PPP Deflate Compression module registered
PPP BSD Compression module registered
PPP MPPE Compression module registered
NET: Registered protocol family 24
PPPoL2TP kernel driver, V1.0
SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256).
CSLIP: code copyright 1989 Regents of the University of California.
tun: Universal TUN/TAP device driver, 1.6
tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
console enabled
netconsole: network logging started
usbcore: registered new interface driver cdc_acm
cdc_acm: v0.26:USB Abstract Control Model driver for USB modems and ISDN adaptes
Initializing USB Mass Storage driver...
scsi0 : SCSI emulation for USB Mass Storage devices
scsi1 : SCSI emulation for USB Mass Storage devices
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usbcore: registered new interface driver usbserial
USB Serial support registered for generic
usbcore: registered new interface driver usbserial_generic
usbserial: USB Serial Driver core
USB Serial support registered for debug
usbcore: registered new interface driver debug
USB Serial support registered for GSM modem (1-port)
usbcore: registered new interface driver option
option: v0.7.2:USB Driver for GSM modems
safe_serial: v0.0b:USB Safe Encapsulated Serial
USB Serial support registered for safe_serial
usbcore: registered new interface driver safe_serial
mice: PS/2 mouse device common for all mice
i2c /dev entries driver
Linux video capture interface: v2.00
cpld 1-003c: chip found @ 0x78 (DaVinci I2C adapter)
cpld register_chrdev success,major = 251
FPGA Debug: Seed FPGA program Driver.major = 250
adv7343 1-002a: chip found @ 0x54 (DaVinci I2C adapter)
usb 1-1.3: USB disconnect, address 3
ths7303 1-002e: chip found @ 0x5c (DaVinci I2C adapter)
ths7303 1-002e: ths7303 write failed
ths7303: probe of 1-002e failed with error -121
v4l2_i2c_new_subdev_board:111
vpif_display vpif_display: Error registering v4l2 subdevice
vpif_display vpif_display: VPIF IRQ request failed
v4l2_i2c_new_subdev_board:111
vpif_capture vpif_capture: Error registering v4l2 subdevice
siI9125 driver Init
sii9125 register_chrdev success, major = 249
siI9134 driver Init
sii9134 register_chrdev success, major = 248
watchdog watchdog: heartbeat 60 sec
usbcore: registered new interface driver usbhid
usbhid: v2.6:USB HID core driver
Advanced Linux Sound Architecture Driver Version 1.0.21.
No device for DAI tlv320aic3x
asoc: tlv320aic3x <-> davinci-i2s mapping ok
asoc: DIT <-> davinci-dit mapping ok
ALSA device list:
#0: DaVinci DM6467 EVM (tlv320aic3x)
TCP cubic registered
NET: Registered protocol family 17
Clocks: disable unused uart1
Clocks: disable unused emac
Clocks: disable unused timer1
Clocks: disable unused pci
davinci_emac_probe: using random MAC addr: fa:cf:b0:51:6d:bf
usb 1-1.4: USB disconnect, address 4
emac-mii: probed
eth0: attached PHY driver (mii_bus:phy_addr=1:01, id=8201)
IP-Config: Guessing netmask 255.255.255.0
IP-Config: Complete:
device=eth0, addr=192.168.8.66, mask=255.255.255.0, gw=192.168.8.1,
host=192.168.8.66, domain=, nis-domain=(none),
bootserver=255.255.255.0, rootserver=192.168.8.29, rootpath=
Looking up port of RPC 100003/2 on 192.168.8.29
PHY: 1:01 - Link is Up - 100/Full
usb 1-1.3: new full speed USB device using musb_hdrc and address 5
Looking up port of RPC 100005/1 on 192.168.8.29
VFS: Mounted root (nfs filesystem) on device 0:14.
Freeing init memory: 140K
usb 1-1.3: configuration #1 chosen from 1 choice
option 1-1.3:1.0: GSM modem (1-port) converter detected
usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB0
option 1-1.3:1.1: GSM modem (1-port) converter detected
usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB1
option 1-1.3:1.2: GSM modem (1-port) converter detected
usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB2
option 1-1.3:1.3: GSM modem (1-port) converter detected
usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB3
scsi6 : SCSI emulation for USB Mass Storage devices
usb 1-1.4: new full speed USB device using musb_hdrc and address 6
usb 1-1.4: configuration #1 chosen from 1 choice
option 1-1.4:1.0: GSM modem (1-port) converter detected
usb 1-1.4: GSM modem (1-port) converter now attached to ttyUSB4
option 1-1.4:1.1: GSM modem (1-port) converter detected
usb 1-1.4: GSM modem (1-port) converter now attached to ttyUSB5
option 1-1.4:1.2: GSM modem (1-port) converter detected
usb 1-1.4: GSM modem (1-port) converter now attached to ttyUSB6
option 1-1.4:1.3: GSM modem (1-port) converter detected
usb 1-1.4: GSM modem (1-port) converter now attached to ttyUSB7
scsi11 : SCSI emulation for USB Mass Storage devices
scsi 6:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 0
scsi 11:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 0
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