일반 dm9000 transmit out 문제

dm9000 드라이버를 올려서 ping을 날려 봤더니 아래와 같은 메세지가 나오고 난 후에  ping 이 정상 적으로 수행 됩니다.

물론 Time out 시간 후에 ..!

이후에 ping은 정상 수행이 됩니다 부팅이 되고 난 후 최초 명령 시 만 아래와 같은 메세지가 발생 합니다.

뭔 .. 수정만 했다하면 Error이니 원..!!

이런 경우는 무슨 문제 인건가요 ??  아시는 분 조언 부탁 드립니다..ㅠ

------------[ cut here ]------------
WARNING: at net/sched/sch_generic.c:226 dev_watchdog+0x17c/0x280()
NETDEV WATCHDOG: eth0 (dm9000): transmit timed out
Modules linked in:
[<c03c1cd8>] (dump_stack+0x0/0x14) from [<c005434c>] (warn_slowpath+0x68/0x9c)
[<c00542e4>] (warn_slowpath+0x0/0x9c) from [<c0325fd8>] (dev_watchdog+0x17c/0x280)
 r3:c43d9800 r2:c04b9ef3
 r7:00000014 r6:00000001 r5:c43d9800 r4:c05d1f08
[<c0325e5c>] (dev_watchdog+0x0/0x280) from [<c005eb00>] (run_timer_softirq+0x184/0x230)
[<c005e97c>] (run_timer_softirq+0x0/0x230) from [<c0059b4c>] (__do_softirq+0x64/0xe0)
[<c0059ae8>] (__do_softirq+0x0/0xe0) from [<c0059c10>] (irq_exit+0x48/0x64)
[<c0059bc8>] (irq_exit+0x0/0x64) from [<c0033058>] (__exception_text_start+0x58/0x6c)
[<c0033000>] (__exception_text_start+0x0/0x6c) from [<c03c45e8>] (__irq_svc+0x48/0x9c)
Exception stack(0xc04dff38 to 0xc04dff80)
ff20:                                                       00000002 00000000
ff40: f4100000 00000021 c00349e8 c04de000 c00349e8 c05116e8 50027484 410fb766
ff60: 50027450 c04dff8c c04dff80 c04dff80 c003d5e4 c0034a38 a0000013 ffffffff
 r5:f4000000 r4:ffffffff
[<c00349e8>] (default_idle+0x0/0x5c) from [<c0034ff8>] (cpu_idle+0x34/0x68)
[<c0034fc4>] (cpu_idle+0x0/0x68) from [<c03c0448>] (rest_init+0x78/0x8c)
 r7:c04e1d58 r6:c0028ea4 r5:c05112a4 r4:c04de000
[<c03c03d0>] (rest_init+0x0/0x8c) from [<c0008968>] (start_kernel+0x25c/0x2b8)
 r4:c055af98
[<c000870c>] (start_kernel+0x0/0x2b8) from [<50008034>] (0x50008034)
---[ end trace bd3acaa17dee255b ]---

64 bytes from 192.168.1.51: seq=0 ttl=255 time=2002.332 ms
64 bytes from 192.168.1.51: seq=1 ttl=255 time=1001.934 ms
64 bytes from 192.168.1.51: seq=2 ttl=255 time=0.971 ms
64 bytes from 192.168.1.51: seq=3 ttl=255 time=0.653 ms