Does anyone know how to explain this:

$ irb
>> exec 'date'
Wed Mar 14 01:38:11 EDT 2007
$ irb
>> Thread.new {}
=> #<Thread:0x3546e8 dead>
>> exec 'date'
Errno::EOPNOTSUPP: Operation not supported - date
        from (irb):2:in `exec'
        from (irb):2
        from :0
>>

I couldn't reproduce it on Linux though.

-- 
Kent
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