tail -f stops working (SOLVED!)

[Carl S. Gutekunst]

There were two bugs that were responsible for all the various interval-timer-
related problems discussed here: one in libc.a, and one in the kernel. Fixes
for both were slipped into OSx 5.0, but will be difficult to incorporate into
earlier releases. No one has reported this above priority 3, so we'll let it
go at that.

E-mail to me if you want details.

<csg>