You can't take a reference to a subroutine and initiate it by passing parameters at the same time. Use an anonymous sub instead. 
push @device_thread, threads->new(sub {thread_job($key, $device_ip{$ke
+y}, $index)})->join;

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In reply to Re: Not a CODE reference … my 1st script by wind
in thread Not a CODE reference … my 1st script by OneDreamCloser

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