[TUHS] Early non-Unix filesystems?

[Ron Natalie]

The nand gate fix wasn't to fix a bug in MTPI but rather to allow access to the user-I from the program itself, primarily to make the *abomination* nargs() function work.

I don't believe DEC ever worried about "fixing" this as none of the DEC OS's and not even the stock UNIXes could even implement such a problem.   You could chew up some processor time, but you couldn't absolutely lock things out.