[ECOS] JFFS2 on big-endian system

Gary Thomas gary@mlbassoc.com
Mon Nov 24 20:10:00 GMT 2003

On Mon, 2003-11-24 at 10:46, Roland Caßebohm wrote:
> Hello,
> I try to use jffs2 on my big-endian system. First I had the problem, that
> mkfs.jffs2 couldn't make big-andian images, even if -b was set. Now I have
> a newer version which could do that.
> This is what I have done:
> Linux> mkfs.jffs2 -o jffs2_b.img -b -r experimental -e 0x10000
> RedBoot> load -r -b 0x40000 -h jffs2_b.img
> RedBoot> fis create -f 0x20c0000 -l 0x30000 jffs2
> It works except of mount() gave th following output:
> <4>Node at 0x00000c30 with length 0x000004d6 would run over the end of the 
> erase block
> <4>Perhaps the file system was created with the wrong erase size?
> <5>jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000c38: 
> 0xde82 instead
> <5>Further such events for this erase block will not be printed
> <5>jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00001000: 
> 0x7cba instead
> <5>Further such events for this erase block will not be printed
> Does anybody know what could be wrong?

Does your FLASH actually have an erase block size of 64K (0x10000)?
This number is *critical* - if it's wrong, either too large or too 
small, the whole file system fails.

Other than that, try turning on the low level debug messages.  That may
show you something.

Gary Thomas <gary@mlbassoc.com>
MLB Associates

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