아래와 같은 에러가 발생하는데... 혹씨 이유가 뭔지 아시는지요 ?

Linux version 2.6.24.back-21-26-lgs-android-g10351122-dirty (shlee@shlee-desktop) (gcc version 4.2.4) #25 Tue Mar 31 21:56:45 KST 2009
CPU: ARMv6-compatible processor [410fb766] revision 6 (ARMv7), cr=00c5387f
Machine: SMDK6410
Ignoring unrecognised tag 0x00000000
Memory policy: ECC disabled, Data cache writeback
CPU S3C6410 (id 0x36410101)
S3C6410: core 666.000 MHz, memory 133.000 MHz, peripheral 66.500 MHz
S3C6410: EPLL 192.000 MHz
S3C64XX Clocks, (c) 2007 Samssung Electronics
CPU0: D VIPT write-back cache
CPU0: I cache: 16384 bytes, associativity 4, 32 byte lines, 128 sets
CPU0: D cache: 16384 bytes, associativity 4, 32 byte lines, 128 sets
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 32512
Kernel command line: root=/dev/nfs rw nfsroot=172.16.56.5:/home/shlee/project/aesop/android_fs ip=172.16.56.131:172.16.56.5:172.16.1.1:255.255.0.0::eth0:off mem=128M ethaddr=00:40:5c:26:0a:5b init=/init console=ttySAC0,115200n81
ethaddr_setup()
mac[0] = 0x00
mac[1] = 0x40
mac[2] = 0x5C
mac[3] = 0x26
mac[4] = 0x0A
mac[5] = 0x5B
Trying to install chained interrupt handler for IRQ0
Trying to install chained interrupt handler for IRQ1
Trying to install chained interrupt handler for IRQ32
Trying to install chained interrupt handler for IRQ33
PID hash table entries: 512 (order: 9, 2048 bytes)
timer tcon=00600000, tcnt 103c3, tcfg 00000400,00000000, usec 00001340
Console: colour dummy device 80x30
console [ttySAC0] enabled
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 128MB = 128MB total
Memory: 125568KB available (3416K code, 527K data, 280K init)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
net_namespace: 64 bytes
android_power_init
android_power_init done
NET: Registered protocol family 16
S3C6410 Power Management, (c) 2008 Samsung Electronics
s3c6410: Initialising architecture
S3C DMA-pl080 Controller Driver, (c) 2006-2007 Samsung Electronics
Total 32 DMA channels will be initialized.
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
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
NetWinder Floating Point Emulator V0.97 (double precision)
ashmem: initialized
JFFS2 version 2.2. (NAND) 짤 2001-2006 Red Hat, Inc.
yaffs Mar 30 2009 11:15:49 Installing.
io scheduler noop registered
io scheduler anticipatory registered (default)
io scheduler deadline registered
io scheduler cfq registered
LCD TYPE :: S3C_LMS350DF01 LCD will be initialized
S3C_LCD clock got enabled :: 133.000 Mhz
Window[0] - FB1: map_video_memory: clear ff200000:0012c000
            FB1: map_video_memory: dma=57a00000 cpu=ff200000 size=0012c000
Console: switching to colour frame buffer device 40x30
fb0: s3cfb frame buffer device
lp: driver loaded but no devices found
ppdev: user-space parallel port driver
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
s3c-uart.0: s3c_serial0 at MMIO 0x7f005000 (irq = 37) is a S3C
s3c-uart.1: s3c_serial1 at MMIO 0x7f005400 (irq = 38) is a S3C
s3c-uart.2: s3c_serial2 at MMIO 0x7f005800 (irq = 39) is a S3C
s3c-uart.3: s3c_serial3 at MMIO 0x7f005c00 (irq = 40) is a S3C
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: module loaded
eth0: LAN9215 (rev 0) at 0xc8866000 IRQ 67
eth0: Ethernet addr: 00:40:5c:26:0a:5b
Driver 'sd' needs updating - please use bus_type methods
S3C NAND Driver, (c) 2007 Samsung Electronics
S3C NAND Driver is using hardware ECC.
NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-bit)
Creating 4 MTD partitions on "NAND 256MiB 3,3V 8-bit":
0x00000000-0x00040000 : "Bootloader"
0x00040000-0x00400000 : "Kernel"
0x00400000-0x03400000 : "Root - Cramfs"
0x03400000-0x10000000 : "File System"
usbmon: debugfs is not available
s3c2410-ohci s3c2410-ohci: S3C OHCI
s3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1
s3c2410-ohci s3c2410-ohci: irq 47, io mem 0x74300000
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
mice: PS/2 mouse device common for all mice
S3C Touchscreen driver, (c) 2008 Samsung Electronics
S3C TouchScreen got loaded successfully : 12 bits
input: S3C TouchScreen as /class/input/input0
S3C24XX RTC, (c) 2004,2006 Simtec Electronics
s3c2410-rtc s3c2410-rtc: rtc disabled, re-enabling
s3c2410-rtc s3c2410-rtc: rtc core: registered s3c as rtc0
i2c /dev entries driver
S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics
s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq enabled
[s3c_hsmmc_probe]: s3c-hsmmc.0: at 0xc9000000 with irq 56. clk src: sclk_DOUTmpll_mmc0
s3c-hsmmc: card inserted.
[s3c_hsmmc_probe]: s3c-hsmmc.1: at 0xc9200000 with irq 57. clk src: sclk_DOUTmpll_mmc1
[s3c_hsmmc_probe]: s3c-hsmmc.2: at 0xc9400000 with irq 49. clk src: sclk_DOUTmpll_mmc2
usbcore: registered new interface driver usbhid
drivers/hid/usbhid/hid-core.c: v2.6:USB HID core driver
logger: created 64K log 'log_main'
logger: created 64K log 'log_events'
logger: created 64K log 'log_radio'
Advanced Linux Sound Architecture Driver Version 1.0.15 (Tue Nov 20 19:16:42 2007 UTC).
ASoC version 0.13.1
WM9713/WM9714 SoC Audio Codec 0.12
asoc: AC97 HiFi <-> s3c64xx-ac97 mapping ok
ALSA device list:
  #0: SMDK6400 (WM9713)
TCP cubic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
NET: Registered protocol family 15
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
s3c2410-rtc s3c2410-rtc: setting system clock to 2009-03-17 04:53:00 UTC (1237265580)
eth0: link down
IP-Config: Complete:
      device=eth0, addr=172.16.56.131, mask=255.255.0.0, gw=172.16.1.1,
     host=172.16.56.131, domain=, nis-domain=(none),
     bootserver=172.16.56.5, rootserver=172.16.56.5, rootpath=
Looking up port of RPC 100003/2 on 172.16.56.5
eth0: link up, 100Mbps, half-duplex, lpa 0x45E1
Looking up port of RPC 100005/1 on 172.16.56.5
VFS: Mounted root (nfs filesystem).
Freeing init memory: 280K
BUG: soft lockup - CPU#0 stuck for 11s! [khubd:110]

Pid: 110, comm:                khubd
CPU: 0    Not tainted  (2.6.24.back-21-26-lgs-android-g10351122-dirty #25)
PC is at ohci_hub_control+0x3d0/0x44c
LR is at ohci_hub_control+0x3f0/0x44c
pc : [<c01f2348>]    lr : [<c01f2368>]    psr: 60000013
sp : c78bbcd8  ip : c78bbc80  fp : c78bbcfc
r10: 00000000  r9 : 00000000  r8 : 00000010
r7 : 00100000  r6 : c786f0d8  r5 : 00000002  r4 : c8e0004c
r3 : 00000311  r2 : 00000658  r1 : 00000000  r0 : 0000000a
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 00c5387f  Table: 57b74008  DAC: 00000017
[<c00504b0>] (show_regs+0x0/0x50) from [<c008a1a8>] (softlockup_tick+0xec/0x11c)
 r4:00000004
[<c008a0bc>] (softlockup_tick+0x0/0x11c) from [<c0071b6c>] (run_local_timers+0x18/0x1c)
[<c0071b54>] (run_local_timers+0x0/0x1c) from [<c0071bec>] (update_process_times+0x2c/0x58)
[<c0071bc0>] (update_process_times+0x0/0x58) from [<c0052fe8>] (timer_tick+0xcc/0xec)
 r5:00000000 r4:c03ddc60
[<c0052f1c>] (timer_tick+0x0/0xec) from [<c0060124>] (s3c_timer_interrupt+0x24/0x54)
 r5:00000000 r4:c03ddc60
[<c0060100>] (s3c_timer_interrupt+0x0/0x54) from [<c008a4cc>] (handle_IRQ_event+0x3c/0x74)
 r4:c03ac660
[<c008a490>] (handle_IRQ_event+0x0/0x74) from [<c008bd84>] (handle_level_irq+0xd4/0xf0)
 r7:00100000 r6:00000000 r5:0000001c r4:c03b2018
[<c008bcb0>] (handle_level_irq+0x0/0xf0) from [<c004e048>] (__exception_text_start+0x48/0x64)
 r5:c03b2018 r4:0000001c
[<c004e000>] (__exception_text_start+0x0/0x64) from [<c004ea90>] (__irq_svc+0x30/0x80)
Exception stack(0xc78bbc90 to 0xc78bbcd8)
bc80:                                     0000000a 00000000 00000658 00000311
bca0: c8e0004c 00000002 c786f0d8 00100000 00000010 00000000 00000000 c78bbcfc
bcc0: c78bbc80 c78bbcd8 c01f2368 c01f2348 60000013 ffffffff                  
 r6:10000000 r5:f4700000 r4:ffffffff
[<c01f1f78>] (ohci_hub_control+0x0/0x44c) from [<c01f2d78>] (ohci_s3c2410_hub_control+0x40/0x1e4)
 r8:c786f000 r7:c78bbda8 r6:00002303 r5:00000000 r4:00000002
[<c01f2d38>] (ohci_s3c2410_hub_control+0x0/0x1e4) from [<c01e3284>] (usb_hcd_submit_urb+0x5b4/0x754)
 r8:c786f000 r7:00000000 r6:c7bbf6a0 r5:00000000 r4:c78bbda8
[<c01e2cd0>] (usb_hcd_submit_urb+0x0/0x754) from [<c01e38cc>] (usb_submit_urb+0x240/0x25c)
[<c01e368c>] (usb_submit_urb+0x0/0x25c) from [<c01e4310>] (usb_start_wait_urb+0x44/0xac)
 r7:000003e8 r6:c7bbf6a0 r5:00000000 r4:c78bbe08
[<c01e42cc>] (usb_start_wait_urb+0x0/0xac) from [<c01e4560>] (usb_control_msg+0xc8/0xec)
 r8:00000023 r7:00000002 r6:00000004 r5:00000000 r4:c7b6dfa0
[<c01e4498>] (usb_control_msg+0x0/0xec) from [<c01de9b4>] (set_port_feature+0x4c/0x54)
[<c01de968>] (set_port_feature+0x0/0x54) from [<c01dee20>] (hub_port_reset+0x3c/0x1c8)
 r4:00000002
[<c01dede4>] (hub_port_reset+0x0/0x1c8) from [<c01df048>] (hub_port_init+0x9c/0x5d4)
[<c01defac>] (hub_port_init+0x0/0x5d4) from [<c01e1300>] (hub_thread+0x594/0xb60)
[<c01e0d6c>] (hub_thread+0x0/0xb60) from [<c007c4b4>] (kthread+0x5c/0x94)
[<c007c458>] (kthread+0x0/0x94) from [<c006ba48>] (do_exit+0x0/0x6c8)
 r6:00000000 r5:00000000 r4:00000000