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Re^2: Create zombies on purpose

by happy.barney (Friar)
on Mar 17, 2011 at 15:13 UTC ( [id://893785]=note: print w/replies, xml ) Need Help??


in reply to Re: Create zombies on purpose
in thread Create zombies on purpose

note: forked processes should exit and parent cannot.
perl -e 'fork || exit for 1 .. shift; <>' 5

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Re^3: Create zombies on purpose
by eddor1614 (Beadle) on Mar 17, 2011 at 15:30 UTC
    Of course, I was doing it right, but when perl exits, the Zombies disappears. So I was wrong. Thank you! Any way of leaving the zombies after the parent exits?
      Simplified: if process exits, all its children are turned to be children of process 1 (init) and that it will wait.
      You can for example replace <> with kill STOP => $$ but than it will be good to have possibility to terminate that process.
      No, because they are not zombies then, they are orphans.

      Anyway, a zombie is a process that has finished - it is only there to allow the parent to pick-up its exit code, there is almost nothing left of the original process (if memory serves me right, a zombie is only a couple of pages on Linux).

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