I believe Moron meant that your $SIG{CHILD} = 'IGNORE' instruction should be avoiding zombification of your children, but it's not, and that you should read perlipc for more information on how to build a reliable reaper for your dead processes. Something like (from perlipc itself): 

use POSIX ":sys_wait_h";
sub REAPER {
    my $child;
    while (($child = waitpid(-1,WNOHANG)) > 0) {
        $Kid_Status{$child} = $?;
    }
    $SIG{CHLD} = \&REAPER;  # still loathe sysV
}
$SIG{CHLD} = \&REAPER;
# do something that forks...

[download]

But you should check with him, anyways :-)

I myself don't think the nohup command will behave as you might expect, and you should look for daemonization solutions for your program to keep working even if you disconnect. Look for "Complete Dissociation of Child from Parent" again in perlipc.

Hope this helps!

In reply to Re^3: How Can I Reliably Cleanup Sockets in a Backgrounded Program? by garu
in thread How Can I Reliably Cleanup Sockets in a Backgrounded Program? by xarex

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