I have adapted a MTD CFI driver to an Intel 48f44 chip and are attempting to start the devf-generic with:
devf-generic -s0xc8000000,64M,0,64M,0,4,2.

The MTD driver seem to have no problem identifying the bottom bank of an Intel 48f44, but the F3S driver is failing when
 f3s_part_attach() is called in f3s_array_attach(). There is a comment about checking the error return value form 
f3s_part_attach() but no actual check. 

The result of the the f3s_part_attach() failing is that the while loop inside of f3s_array_attach() runs until the 
memory is exhausted.  

The failure of f3s_part_attach can be traced to finding no file system in f3s_recover_boot();

Can anyone give me a clue where to go from here?