Try putting a sleep in before shelling out - that way the scheduler should get time... e.g. 
#!/usr/bin/perl -w
print STDERR "$$\n";
sleep 1;
`./my_program`;

[download]
HTH ,

A user level that continues to overstate my experience :-))

In reply to Re: Ulimit makes program hang by Bloodnok
in thread Ulimit makes program hang by memo2005

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