For Archive reasons I am postin the sollution to my problem.

The problem was a missing patch to the arch/ppc/kernel/cputable.c (got 
it from Montavista)

--- arch/ppc/kernel/cputable.c.orig Tue Jul 6 11:22:03 2004
+++ arch/ppc/kernel/cputable.c Tue Jul 6 11:25:49 2004

@@ -289,6 +289,14 @@

32, 32,
__setup_cpu_603
},
+ { /* 8280 is a G2_LE (603e core, plus some) */
+ 0x7fff0000, 0x00820000, "8280",
+ CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_CAN_DOZE | CPU_FTR_USE_TB |
+ CPU_FTR_CAN_NAP | CPU_FTR_HAS_HIGH_BATS,
+ COMMON_PPC,
+ 32, 32,
+ __setup_cpu_603
+ },
{ /* default match, we assume split I/D cache & TB (non-601)... */
0x00000000, 0x00000000, "(generic PPC)",
CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE,

/Tore



Tore Martin Hagen wrote:

Hi,

I have a custom board with MPC8275 and NFS root file system. I use 
u-boot to load the kernel and it boots up, mounts the file system and 
starts /sbin/init. Then all the children of init dies, I get the 
following errors (with Debugging enabled in /sbin/init)

Sending DHCP requests ., 
OK                                                                              

IP-Config: Got DHCP answer from 10.0.0.1, my address is 
10.0.0.111                                      
IP-Config: 
Complete:                                                                                     

     device=eth0, addr=10.0.0.111, mask=255.255.255.0, 
gw=10.0.0.1,                                    
    host=10.0.0.111, domain=, 
nis-domain=(none),                                                       
    bootserver=10.0.0.1, rootserver=10.0.0.1, 
rootpath=/local/Mpc8266ads/Box2/root                     
NET4: Unix domain sockets 1.0/SMP for Linux 
NET4.0.                                                     
Looking up port of RPC 100003/2 on 
10.0.0.1                                                             
Looking up port of RPC 100005/1 on 
10.0.0.1                                                             
VFS: Mounted root (nfs 
filesystem).                                                                      

Mounted devfs on 
/dev                                                                                    

Freeing unused kernel memory: 96k 
init                                                                   
                                                              
INIT: version 2.78 booting
INIT: Reading 
inittab                                                                                    

INIT: Checking for children to 
kill                                                                     
INIT: Checking for children to 
start                                                                    
INIT: Started id si (pid 
11)                                                                             

INIT: init_main: 
waiting..                                                                               

INIT: chld_handler: marked 11 as 
zombie                                                                 
INIT: got 
SIGCHLD                                                                                        

INIT: Child died, PID= 
11                                                                                

INIT: Checking for children to 
start                                                                    
INIT: SYSINIT -> 
BOOT                                                                                    

INIT: init_main: 
waiting..                                                                               

INIT: Checking for children to 
start                                                                    
INIT: BOOT -> 
NORMAL                                                                                     

INIT: Entering runlevel: 
3                                                                               

INIT: init_main: 
waiting..                                                                               

INIT: Checking for children to 
start                                                                    
INIT: Started id tmh (pid 
14)                                                                            

INIT: init_main: 
waiting..                                                                               

INIT: chld_handler: marked 14 as 
zombie                                                                 
INIT: got 
SIGCHLD                                                                                        

INIT: Child died, PID= 14
.....

The file system works fine on my MPC8266ADS board.

Do I have a problem with the mounting of the file system, or is there 
something wrong with my MMU?

The kernel is compiled with     CONFIG_PPC_STD_MMU=y

Any suggestions about where i should start digging would be appreciated.

/Tore Martin Hagen
                                                                    

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