Kernel panic - not syncing: loopback: Failed to register netdevice: -17

Hi ,

I flashed kernel image to cfi flash using

nios2-flash-programmer Stratix IV

then nios2-terminal , but kernel panics here,

Stratix IV GX FPGA Development Kit User Guide linux/nios ii-mmu

init_bootmem_node(?,0x105a2, 0x10000, 0x18000)

free_bootmem(0x105a2000, 0x7a5e000)

reserve_bootmem(0x105a2000, 0x1000)

built 1 zonelists in zone order, mobility grouping on. total pages: 32512

kernel command line:

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)

we have 98304 pages of ram

memory available: 124140k/5767k ram, 0k/0k rom (2077k kernel code, 3690k data)

hierarchical rcu implementation.

nr_irqs:32

calibrating delay loop... 74.75 bogomips (lpj=373760)

mount-cache hash table entries: 512

net: registered protocol family 16

init_bsp(): registering device resources

bio: create slab <bio-0> at 0

------------[ cut here ]------------

warning: at /opt/dipen/nios2-linux/linux_source/linux-2.6/fs/sysfs/dir.c:451 sys

fs_add_one+0xb0/0xe0()

sysfs: cannot create duplicate filename '/class/net/lo/statistics/'

modules linked in:

stack from d7c16d94:

d7c16dd8

d0012548

ffffffef

d7c1e000

d7c5fd74

d0588db4

d00125cc

d0555b18

d7c16dc0

00000001

d00c04f0

d7c1e000

d7c5fd74

fffffff4

d05890b4

0000000e

d0151a9c

d0588f3c

d7c4cdfc

d0588d80

00000000

00000001

d0152330

00000000

d01342e4

d7c16e64

d7c4ce04

00000000

00000000

d0588dc0

d7c4cc00

d7c4cdfc

call trace:

[<d0197cf0>]

[<d0188944>]

[<d0188b3c>]

[<d01830fc>]

[<d01830fc>]

[<d01832e8>]

[<d018338c>]

[<d0000210>]

[<d00b0000>]

[<d0002294>]

[<d000e250>]

[<d00021f8>]

[<d0001074>]

[<d0002288>]

---[ end trace 4eaa2a86a8e2da22 ]---

kernel panic - not syncing: loopback: failed to register netdevice: -17

any one have idea about this ?