I am bringing up a custom board using the MPC5200 and based on the
Lite5200. We changed from SDR to 128MB of DDR SDRAM and the flash
interface is now a 32MB, 32-bit wide bus using 2 Strata flash parts. I
have u-boot-1.1.3 up and running just fine. I have three partitions on
the flash: 0-uboot, 1-kernel image, 2-jffs file system. The linux kernel
(DENX based 2.4.25) starts with all the normal messages plus some that I
added for debugging. It should then start running /sbin/init
(busybox-1.00, dynamically linked) but instead I get the following Oops:
VFS: Mounted root (jffs filesystem)
readonly.
Freeing unused kernel memory: 60k
init
init
filename=/sbin/init
Oops: kernel access of bad area, sig:
11
NIP: C0011030 XER: 00000000 LR: C00112AC SP: C03BBEB0 REGS: c03bbe00
TRAP: 0300d
MSR: 00001032 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR:
11
DAR: 80820000, DSISR:
20000000
TASK = c03ba000[1] ' nit' Last syscall:
11
last math 00000000 last altivec
00000000
GPR00: 80820000 C03BBEB0 C03BA000 C01780A0 00001032 0000000B C0160BA4
00000000
GPR08: 0000001B 80820000 C0160968 C013D954 00000000 00000000 00000000
00000000
GPR16: 00000000 00000000 00000000 00000000 C0170000 C0190000 C0160000
C0160000
GPR24: C000E8CC 00000000 00000000 00000000 C03BA000 C016F920 00000000
C03BBEB0
Call
backtrace:
00000000 C0005D04
00000000
Kernel panic: Attempted to kill
init!
<0>Rebooting in 180
seconds..
When I change busybox to statically linked I get the following (notice
some of my debug messages from within busybox showing up now):
VFS: Mounted root (jffs filesystem)
readonly.
Freeing unused kernel memory: 60k
init
init
filename=/sbin/init
init started: BusyBox v1.00 (2005.09.07-14:56+0000) multi-call
binary
Machine check in kernel
mode.
Caused by (from SRR1=41030): Transfer error ack
signal
Oops: machine check, sig:
7
NIP: C0010FD0 XER: 00000000 LR: C0010F34 SP: C03BBE40 REGS: c03bbd90
TRAP: 0200d
MSR: 00041030 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR:
11
TASK = c03ba000[1] ' nit' Last syscall:
162
last math 00000000 last altivec
00000000
GPR00: 7C691B78 C03BBE40 C03BA000 C01790A0 00001032 00000000 C0160BA4
00000000
GPR08: 00000017 4BFFFFAC C001BF1C 80620464 100823E4 1010D01C 00000000
00000000
GPR16: 00000000 00000000 00000000 00000000 C0170000 C0190000 C0160000
C0160000
GPR24: C0005A40 00000001 100D3E28 C0180000 C7E38000 C016F920 00000000
C03BBE40
Call
backtrace:
C000EA78 C0010E3C C001C0EC C0005A9C 10082408 10027000
10000960
10000338 10051284
00000000
Kernel panic: Attempted to kill
init!
<0>Rebooting in 180
seconds..
1) Why am i getting machine check message - also see the task name is
messed up.
2) Why are dynamic linking not working, is this a problem with my
library loader.
3) Why is my init failing to load. this is the same binary and config
files that was used on a Lite5200 and worked fine.
Any clues to help debug this would be greatly appreciated. I have built
several different kernel and busybox images with different debug prints
to help figure this out and I am at a loss. Please CC me as I am not on
the mailing list OR directly email me and we can post the solution back
to the list.
Thanks
Frank
