I'm surprised no-one has commented on this yet: are you really attempting to call perl code from an ISR (interrupt service routine)? Perl does allow "PERL_SIGNALS=unsafe", but generally, signal handling is deferred for good reasons.

What sort of code do you need to invoke from an interrupt handler? Can't you just use the regular dispatch via $SIG{USR1} or something?

In reply to Re: XS: Passing an external library's function a Perl XS callback by Anonymous Monk
in thread SOLVED: XS: Passing an external library's function a Perl XS callback by stevieb

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