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<defunct> process

Rita060297
Rita060297 asked
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1,697 Views
Last Modified: 2008-03-17
How does a <defunct> process produces itself?
Does many <defunct> process hang the system?

It seems that my program creates a lot of <defunct> process.  

My program is a daemon process in which another program is called by using a system call.

P.S I'm working on IBM RS6000 with AIX 4.1.5
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Doesn't your program fork childs??

AIX has some oddities (so i'll leave this as a comment), but, in general, here is how things work:

1. a parent fork's a child;
2. the parent exits without wait'ing for the child;
3. the child exits and, since there's no parent to rip it off, keeps being in the system table as a <defunct>.

Check wait(2) man page on your OS.

-julio
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tty has nothing to do with zombie processes.

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