Thus spake David Laight ("DL> ") sometime Today...

DL> > Note that negative values of 32 bit disk numbers are used as a special flag
DL> > in some places in the file system code. On-disk.
DL>
DL> But wouldn't they be 'fragment' numbers?
DL> Limiting a UFS1 filesystem to 2^31 fragments - easily > 2^32 sectors.

...even if fsize == 512? :/

				--*greywolf;
--
Instead of asking why a piece of software is using "1970s technology",
start asking why software is ignoring 30 years of accumulated wisdom.