Trouble killing processes in SysV/AT

[Guy Harris]

> In article <51483 at sun.uucp>, guy at gorodish.Sun.COM (Guy Harris) writes:
> > > >If the sleep priority is above PZERO, the [signalled] sleep() will return
> > > >an error corresponding to "I was interrupted!".
> > > 
> > Sun [and AT&T created PCATCH to allow interrupting sleeps below PZERO]

Like hell I wrote that!  AT&T created PCATCH to allow a module that sleeps
*ABOVE* PZERO to be notified when it gets interrupted out of the "sleep", so
that it can clean things up.  It was not created "to allow interrupting sleeps
below PZERO"; in fact, it *DOESN'T* "allow interrupting sleeps below PZERO".