what i mean is that: the logical chunk number means the chunk id of one file(is the "struct yaffs_ext_tags.chunk_id"),and the physical chunk id means the chunk id of the whole nand flash.
i wrote 12000 byte to my flash,the chunk size is 1984 byte and the spare size is 64 byte.
when i use yaffs_add_find_tnode_0() to get the tnode 0 squencely.it shows the CHUNK whose "struct yaffs_ext_tags.chunk_id" is 5# is located after the CHUNK whose "struct yaffs_ext_tags.chunk_id" is 6.is this right?
> 0:-1 
> 1:4864 
> 2:4865 
> 3:4866 
> 4:4867 
> 5:4869 
> 6:4868 

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Regards,
Ezio.