smb@cs.columbia.edu ("Steven M. Bellovin") writes:

>I fell back to xargs, and got a bunch of hits in fs/msdosfs.  I'm not 
>sure what they signfiy, but it's a lot more likely than your argument 
>list.  In fact, there are a lot of places in the kernel that seem to 
>return E2BIG other than the documented kern_exec; I suggest that you 
>file a documentation PR.

msdosfs uses E2BIG as an internal error code saying that a logical
block of a file cannot be mapped to an existing physical disk sector.

For some operations, like extending a file, that error is catched
and the proper action is taken (i.e. to allocate new blocks).

For other operations the error could be returned to userland but
I believe this only happens for a corrupted filesystem.

-- 
-- 
                                Michael van Elst
Internet: mlelstv@serpens.de
                                "A potential Snark may lurk in every tree."