home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.sys.next.programmer
- Path: sparky!uunet!caen!zaphod.mps.ohio-state.edu!menudo.uh.edu!usenet
- From: sears@tree.egr.uh.edu (Paul S. Sears)
- Subject: Re: What does a task with priority -1 mean?
- Message-ID: <1992Nov10.152955.21859@menudo.uh.edu>
- Sender: usenet@menudo.uh.edu (USENET News System)
- Nntp-Posting-Host: thanatos.egr.uh.edu
- Reply-To: sears@tree.egr.uh.edu
- Organization: University of Houston
- References: <1dmp94INNppe@uwm.edu>
- Distribution: usa
- Date: Tue, 10 Nov 1992 15:29:55 GMT
- Lines: 33
-
- In article <1dmp94INNppe@uwm.edu> xepo@csd4.csd.uwm.edu (Scott R Violet)
- writes:
- =>
- =>I am not sure if this fits properly in this group, but I have noticed
- =>with a program that I am writing for the NeXT, and was figuring that
- =>maybe it is something I am doing that I should be doing. What
- =>happens is that I run my program and after a while I ^C it to stop.
- =>After that if I do a 'ps -aux' I notice that there is a extra -1 task
- =>running under root. What could cause this problem? And, I found out
- =>that it isn't a good idea to try an kill them...
- =>--
- =>
- => -Scott Violet (xepo@csd4.csd.uwm.edu)
-
- A process with a PID of -1 (also stated as <mnach-task>) is really a zombied
- process. A zombie doesn't not really cause any harm to the system, except
- that it consumes 1 slot in the process table, of which there is a finite
- number of slots. When you run out of process slots, you will crash.
-
- It seems that one of the major creators of zombies is NeXT's Terminal.app.
- Generally whenever you close a terminal.app window, a zombie will be created.
-
- Btw, the zombies can not be "killed" (even will kill -9). Don't even bother
- to attempt it. But if you do, be prepared to reboot from a panic :-)
-
-
- --
- Paul S. Sears * sears@uh.edu (NeXT Mail OK)
- The University of Houston * suggestions@tree.egr.uh.edu (NeXT
- Engineering Computing Center * comments, complaints, questions)
- NeXT System Administration * DoD#1967 '83 NightHawk 650SC
- >>> SSI Diving Certification #755020059 <<<
- "Programming is like sex: One mistake and you support it a lifetime."
-