On Sat, 17 Feb 1996 16:05:31 -0500 
 der Mouse <mouse@Collatz.McRCIM.McGill.EDU> wrote:

 > Well, jtk said something about having found and fixed a probable
 > culprit, so it's likely moot...but it could also be wherever it passes
 > back an error generated by some other call, as in
 > 	error = some_call(one_thing,another_thing,etc...);
 > 	if (error) return(error);

It could also be somewhere where a buffer's error flag is set, i.e. a 
code snippet like:

	if (error) {
		bp->b_flags |= B_ERROR;
		bp->b_error = error;
	}

...etc...

--------------------------------------------------------------------------
Jason R. Thorpe                                       thorpej@nas.nasa.gov
NASA Ames Research Center                               Home: 408.866.1912
NAS: M/S 258-6                                          Work: 415.604.0935
Moffett Field, CA 94035                                Pager: 415.428.6939