JFFS2 summary error!

Hi All,

I am using Linux-2.6.10 with the lastest CVS MTD codes.
My device is a Intel IXP E.V. board, configured as a big-endian machine, with 8M NOR flash and 32M NAND flash.

I can mount a JFFS2 partition correctly without enabling the JFFS2 summary support. But, I usually got warning messages, when turn on the JFFS2 summary support. (I don't know this problem occurs unders what condition)
The following steps are used to test:
1. flash_eraseall /dev/mtdblock/3
2. mount -t jffs2 /dev/mtdblock/3 /mnt
3. do some operations (mkdir, touch, dd, ...)
4. umount /mnt
5. mount -t jffs2 /dev/mtdblock/3 /mnt
then the warning (error!?) meesage showed:
JFFS2 warning: (86) jffs2_sum_process_sum_data: Unsupported node type
found in summary! Exiting...
mount: Mounting /dev/mtdblock/3 on /mnt failed: Input/output error

I added some debug code and found the warrnig always occured with nodetype 02E0. This looks like a endian problem.
Would someone help me to debug?

Regards,
Robert

Hi Robert!

We have developed the summary support but we haven't found this kind of error before. Please send me the kernel log with JFFS2 debug level 1 and the dump of the wrong fs image. I will try to reproduce/fix the problem.

Thanks:
Zoltan

Hi Zoltan,

The attachment is the kernel log (recorded by busybox syslogd). But, I don't know how to dump the fs image.

Would you tell me how to do that?

Thanks,
Robert