2008-08-14 23:58:19     DHCPCD problem

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2008-08-14 23:58:19     DHCPCD problem

DAVID ZHOU (CHINA)

Message: 60500   

 

Hi all, I start dhcpcd in my uclinux, but when I reboot, it print  out followed message, what is wrong with it ?Can any one help me?

 

root:/>

root:/> reboot

bfin-wdt: Unexpected close, not stopping watchdog!

NULL pointer access (probably)

Defered Exception context

CURRENT PROCESS:

COMM=dhcpcd PID=155

TEXT = 0x01d00040-0x01d0ea80        DATA = 0x01d0ea84-0x01d11574

BSS = 0x01d11574-0x01d12ff4  USER-STACK = 0x01d14f90

 

return address: [0x01d00642]; contents of:

0x01d00620:  e491  01d9  4f40  5608  e491  01db  4f81  5641

0x01d00630:  e490  01dc  4fc0  5608  3210  6c08  3248  6c09

0x01d00640:  6c3d [9851] e681  0001  3200  6c0a  e141  01d1

0x01d00650:  e101  2d36  e580  0001  e688  0001  9850  6c11

 

SEQUENCER STATUS:               Not tainted

SEQSTAT: 00002027  IPEND: 0030  SYSCFG: 0006

  HWERRCAUSE: 0x0

  EXCAUSE   : 0x27

RETE: <0x00000000> /* Maybe null pointer? */

RETN: <0x01df6000> /* unknown address */

RETX: <0x01d00642> [ dhcpcd + 0x602 ]

RETS: <0x01d005c2> [ dhcpcd + 0x582 ]

PC  : <0x01d00642> [ dhcpcd + 0x602 ]

DCPLB_FAULT_ADDR: <0x00000000> /* Maybe null pointer? */

ICPLB_FAULT_ADDR: <0x01d00642> [ dhcpcd + 0x602 ]

 

PROCESSOR STATE:

R0 : 00000000    R1 : 00000000    R2 : 00000006    R3 : 01d120c0

R4 : 01d12cd9    R5 : 01d11bf2    R6 : 00000001    R7 : 00000025

P0 : 01d11bf6    P1 : 01d11bf7    P2 : 00000000    P3 : 01d11ae6

P4 : 01d12ce0    P5 : 01d11bfb    FP : 01d14964    SP : 01df5f24

LB0: 01d08765    LT0: 01d08762    LC0: 00000000

LB1: 01d07e0d    LT1: 01d07e0c    LC1: 00000000

B0 : 00000000    L0 : 00000000    M0 : 00000000    I0 : 01d10164

B1 : 00000000    L1 : 00000000    M1 : 00000000    I1 : 01d111bc

B2 : 00000000    L2 : 00000000    M2 : 00000000    I2 : 00000000

B3 : 00000000    L3 : 00000000    M3 : 00000000    I3 : 00000000

A0.w: 00000000   A0.x: 00000000   A1.w: 00000000   A1.x: 00000000

USP : 01d1494c  ASTAT: 02002001

 

Hardware Trace:

   0 Target : <0x0000483c> { _trap_c + 0x0 }

     Source : <0xffa0076c> { _exception_to_level5 + 0xb4 }

   1 Target : <0xffa006b8> { _exception_to_level5 + 0x0 }

     Source : <0xffa00614> { _ex_trap_c + 0x5c }

   2 Target : <0xffa005b8> { _ex_trap_c + 0x0 }

     Source : <0xffa00442> { _ex_workaround_261 + 0x22 }

   3 Target : <0xffa00420> { _ex_workaround_261 + 0x0 }

     Source : <0xffa0080c> { _trap + 0x28 }

   4 Target : <0xffa007e4> { _trap + 0x0 }

     Source : <0xffa0055a> { _bfin_return_from_exception + 0xe }

   5 Target : <0xffa0054c> { _bfin_return_from_exception + 0x0 }

     Source : <0xffa00432> { _ex_workaround_261 + 0x12 }

   6 Target : <0xffa00420> { _ex_workaround_261 + 0x0 }

     Source : <0xffa0080c> { _trap + 0x28 }

   7 Target : <0xffa007e4> { _trap + 0x0 }

     Source : <0x01d00640> [ dhcpcd + 0x600 ]

   8 Target : <0x01d005c2> [ dhcpcd + 0x582 ]

     Source : <0x01d08768> [ dhcpcd + 0x8728 ]

   9 Target : <0x01d0875a> [ dhcpcd + 0x871a ]

     Source : <0x01d0872a> [ dhcpcd + 0x86ea ]

  10 Target : <0x01d08720> [ dhcpcd + 0x86e0 ]

     Source : <0x01d005be> [ dhcpcd + 0x57e ]

  11 Target : <0x01d00554> [ dhcpcd + 0x514 ]

     Source : <0x01d08768> [ dhcpcd + 0x8728 ]

  12 Target : <0x01d0875a> [ dhcpcd + 0x871a ]

     Source : <0x01d0872a> [ dhcpcd + 0x86ea ]

  13 Target : <0x01d08720> [ dhcpcd + 0x86e0 ]

     Source : <0x01d00550> [ dhcpcd + 0x510 ]

  14 Target : <0x01d00544> [ dhcpcd + 0x504 ]

     Source : <0x01d08768> [ dhcpcd + 0x8728 ]

  15 Target : <0x01d0875a> [ dhcpcd + 0x871a ]

     Source : <0x01d0872a> [ dhcpcd + 0x86ea ]

Stack from 01df5f04:

        00000000 ffa00770 001d256c 001d256c 001d2568 01d0ed0f 00000000 0001162e

        01d00642 00000030 00002027 00000000 01df6000 01d00642 01d00642 01d005c2

        00000000 02002001 01d07e0d 01d08765 01d07e0c 01d08762 00000000 00000000

        00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

        00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

        00000000 00000000 01d111bc 01d10164 01d1494c 01d14964 01d11bfb 01d12ce0

 

Call Trace:

 

Feb 21 21:52:09 dhcpcd[155]: terminating on signal 11

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2008-08-15 09:51:14     Re: DHCPCD problem

Robin Getz (UNITED STATES)

Message: 60501   

 

David:

 

What version of things are you using? I have never seen that before...

 

Can you run addr2line on dhcpcd + 0x600 to see where things are at?

 

See:

 

https://docs.blackfin.uclinux.org/doku.php?id=debuging_applications#analyzing_traces

 

for an example of bfin-xxx-addr2line

 

Thanks

 

-Robin

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