If your tie class provides an UNTIE method (even an empty one), the warning is bypassed under the theory that you know what you are doing.

But the extra reference seems to be just a bug in IPC::Shareable; it happens even without the fork.

Update: bug may be too strong a word; you could do $foo->remove() in the child before the untie.

In reply to Re: Unavoidable "untie attempted while inner references" with fork()? by ysth
in thread Unavoidable "untie attempted while inner references" with fork()? by saintmike

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