Boot Linux 2.4.25 on MPC8270 board errors.

Dear all,
    I am now using ELDK 3.1.1 to build Linux-2.4.25 for
an MPC8270 board. The board has 128MB SDRAM, and in fcc_enet.c
    I configured the followings,
#define FCC_ENET_RX_PAGES    32 /*16 */
#define FCC_ENET_RX_FRSIZE    2048
#define FCC_ENET_RX_FRPPG    (PAGE_SIZE / FCC_ENET_RX_FRSIZE)
#define RX_RING_SIZE        (FCC_ENET_RX_FRPPG * FCC_ENET_RX_PAGES)
#define TX_RING_SIZE        128 /*16    /* Must be power of two */
#define TX_RING_MOD_MASK    127 /*15    /*   for this to work */
    but when boot the image, I got following errors.
   
Register rtc driver 1.0 successfully!
eth0: FCC1 ENET Version 0.4, 00:08:02:06:00:00
eth0: Phy @ 0x10, type LXT971 (0x001378e2)
Oops: kernel access of bad area, sig: 11
NIP: C01E93B8 XER: 00000000 LR: C01E9288 SP: C03BDED0 REGS: c03bde20 TRAP: 0300    Not tainted
MSR: 00009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
DAR: 00000000, DSISR: 22000000
TASK = c03bc000[1] 'swapper' Last syscall: 120
last math 00000000 last altivec 00000000
GPR00: 00000000 C03BDED0 C03BC000 F000B0C0 88888888 00000000 F000B0DC 00000000
GPR08: 00000200 00000000 00000000 000005F0 84004044 10052210 07FE2000 007FFF10
GPR16: 00000001 00000000 007FFF00 FFFFFFFF 003FF000 00000000 07F7FBF8 C00A1BA0
GPR24: C01F2C2C C01D0B5C F00119C0 C7FCB000 C03BE600 00000000 FFFFFFFF F0008500
Call backtrace:
C01A78C0 C01E8DD8 C01E77E8 C01E7824 C01E9BC4 C01E73A4 C01E0624
C00039D0 C00081B8
Kernel panic: Attempted to kill init!
    My question is, what should I set the above values??
    Thank you and regards,
    W.Target

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onetarget@sina.com wrote:

Dear all,
    I am now using ELDK 3.1.1 to build Linux-2.4.25 for an MPC8270 
board. The board has 128MB SDRAM, and in fcc_enet.c
    I configured the followings,
#define FCC_ENET_RX_PAGES    32 /*16 */
#define FCC_ENET_RX_FRSIZE    2048
#define FCC_ENET_RX_FRPPG    (PAGE_SIZE / FCC_ENET_RX_FRSIZE)
#define RX_RING_SIZE        (FCC_ENET_RX_FRPPG * FCC_ENET_RX_PAGES)
#define TX_RING_SIZE        128 /*16    /* Must be power of two */
#define TX_RING_MOD_MASK    127 /*15    /*   for this to work */

    but when boot the image, I got following errors.
  


Register rtc driver 1.0 successfully!
eth0: FCC1 ENET Version 0.4, 00:08:02:06:00:00
eth0: Phy @ 0x10, type LXT971 (0x001378e2)
Oops: kernel access of bad area, sig: 11
NIP: C01E93B8 XER: 00000000 LR: C01E9288 SP: C03BDED0 REGS: c03bde20 
TRAP: 0300    Not tainted
MSR: 00009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
DAR: 00000000, DSISR: 22000000
TASK = c03bc000[1] 'swapper' Last syscall: 120
last math 00000000 last altivec 00000000
GPR00: 00000000 C03BDED0 C03BC000 F000B0C0 88888888 00000000 F000B0DC 
00000000
GPR08: 00000200 00000000 00000000 000005F0 84004044 10052210 07FE2000 
007FFF10
GPR16: 00000001 00000000 007FFF00 FFFFFFFF 003FF000 00000000 07F7FBF8 
C00A1BA0
GPR24: C01F2C2C C01D0B5C F00119C0 C7FCB000 C03BE600 00000000 FFFFFFFF 
F0008500
Call backtrace:
C01A78C0 C01E8DD8 C01E77E8 C01E7824 C01E9BC4 C01E73A4 C01E0624
C00039D0 C00081B8
Kernel panic: Attempted to kill init!

    My question is, what should I set the above values??
    Thank you and regards,

    W.Target

Leave these defines at the values in the original source code.  Use ksymoops to
examine the oops text and determine where the bad access occurred.

Alex