Path: utzoo!attcan!uunet!seismo!sundc!pitstop!sun!decwrl!labrea!rutgers!apple!bloom-beacon!husc6!rice!sun-spots-request
From: telesoft!souza@ucsd.edu (Steve Souza @eldest)
Newsgroups: comp.sys.sun
Subject: Re: Problem with <exitting> processes
Message-ID: <8811281951.AA01206@ucsd.edu>
Date: 11 Dec 88 23:33:01 GMT
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Organization: Rice University, Houston, Texas
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Original-Date: Mon, 28 Nov 88 11:04:51 PST
X-Sun-Spots-Digest: Volume 7, Issue 43, message 10 of 15

Leonard E. Sitongia writes:
> This brings up another question: what is the "lbolt" WCHAN?

>From what I understand of the system internals, lbolt is a wait channel
address used by device driver routines that need to delay but are not
expecting a device interrupt.  They call the kernel sleep() routine with
lbolt as a parameter, and the system issues a wakeup call with the address
of this variable every second (every 60 clock ticks on a 60HZ machine).

I'd be surprised to see a process in a "zombie" state if it were waiting 
on a reliably deterministic event like lbolt.

Steve Souza			ucsd!telesoft!souza, telesoft!souza@ucsd.edu
TELESOFT Inc., San Diego, CA	(619)457-2700 x277