Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!unmvax!pprg.unm.edu!hc!lll-winken!ames!killer!rpp386!spdyne!root
From: root@spdyne.UUCP
Newsgroups: comp.unix.wizards
Subject: Re: pid rollover?
Message-ID: <1800007@spdyne>
Date: 29 Jan 89 23:07:00 GMT
References: <460@oglvee.UUCP>
Lines: 21
Nf-ID: #R:oglvee.UUCP:460:spdyne:1800007:004:607
Nf-From: spdyne.UUCP!root    Jan 29 17:07:00 1989


In article <460@oglvee.UUCP> jr@oglvee.UUCP (Jim Rosenberg) writes:
>.... However we seem to be hitting rollover
>of pids at 32K, implying that the kernel must be using short as the type of a
>pid -- at least internally.

And John F. Haugh II (jfh@rpp386.Dallas.TX.US) Writes:
>I can't answer for the EXACT reason this was done this way, but can explain
>the behaviour better.

>For starters, PID's roll over at 30000 exactly.  The code goes something
>like
>
>	if (nextpid == 30000)
>		nextpid = 1;

	I belive that it sets nextpid to 100, at least it did on our BSD system.


	-Chert Pellett
	 root@spdyne