JFFS2 problem when data cache enabled

S. Hebbar shebbar at india.tejasnetworks.com
Fri Apr 30 18:20:20 EST 2004


I am experiencing JFFS2 FS problem when I enable data cache on 8260 based
custom board.  (266/166/66 MHz).

While the node is booting up, I get the following error on the console.
I am using linuxppc-2.4.20-denx. with latest patches for JFFS2 and MTD.

The board has 8MB of AMD AM29LV641 chipset.

When I disable the datachache on linux kernel, everything works fine.

Any help on debugging this problem is very much appreciated.


Freeing unused kernel memory: 52k init
Mounting /dev/mtdblock3 on /etc as jffs2 file system.
init started:  BusyBox v0.60.5 (2004.03.04-09:24+0000)
ode_nodes(): Data CRC failed on node at 0x00011b90: Read 0x0000053f,
floating point used in kernel (task=c759c000, pc=c0395a20)
Machine check in kernel mode.
Caused by (from SRR1=4b030): Transfer error ack signal
Oops: machine check, sig: 7
NIP: C0395A28 XER: 00000000 LR: C0395A20 SP: C759DB60 REGS: c759dab0 TRAP:
   Not tainted

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