uClinux Unhandled exception #0 in kernel mode @web_server example

Hello.

I used Cyclone III web_server example to launch uClinux on my Cyclone III start kit.

The reference sof & zImage works fine and I can see the uClinux logo.

But when I compile zImage by myself with dts extrated from reference sopcinfo and download to the starter kit, I got below error.

I am new to uClinux & niosII and could not find any clue for several days.

Would you please help me?

sopcinfo, dts and configuration files are attached.

Best regards,

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$ nios2-download -g images/zImage

Using cable "USB-Blaster [8-2]", device 1, instance 0x00

Pausing target processor: OK

Initializing CPU cache (if present)

OK

Downloaded 4049KB in 81.8s (49.4KB/s)

Verified OK

Starting processor at address 0xC1000000

uClinux-dist$ nios2-terminal

nios2-terminal: connected to hardware target using JTAG UART on cable

nios2-terminal: "USB-Blaster [8-2]", device 1, instance 0

nios2-terminal: (Use the IDE stop button or Ctrl-C to terminate)

Linux version 3.5.0-rc4-01329-ga227997 (julycat@july-sie) (gcc version 4.1.2)# 80 Thu Sep 20 16:58:00 CST 2012

bootconsole [early0] enabled

early_console initialized at 0xe8002000

On node 0 totalpages: 8192

free_area_init_node: node 0, pgdat c0576104, node_mem_map c058c960

DMA zone: 64 pages used for memmap

DMA zone: 0 pages reserved

DMA zone: 8128 pages, LIFO batch:0

pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768

pcpu-alloc: [0] 0

Built 1 zonelists in Zone order, mobility grouping on. Total pages: 8128

Kernel command line:

PID hash table entries: 128 (order: -3, 512 bytes)

Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)

Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)

Memory available: 26768k/5670k RAM (2256k kernel code, 3413k data)

NR_IRQS:64

Calibrating delay loop...

Unhandled exception# 0 in kernel mode (badaddr=0x00000100)

r1: c0235748 r2: fffedb08 r3: fffedb08 r4: c0569eb0

r5: 00000000 r6: c0569eb0 r7: 00000000 r8: c0580150

r9: 616c6500 r10: c057bc98 r11: c057b890 r12: 00000000

r13: c057b891 r14: c057bc9a r15: 79616c65

ra: 00249474 fp: deadbeef sp: c0565fc4 gp: deadbeef

ea: 00249484 estatus: 00000001

opcode: 0x30800017