My guess would be this is because the SV created with nevSV(0) doesn't yet have a LEN field.

It doesn't have a body at all.

Using newSV_type(SVt_PV) instead fixed the issue (AFAICT), i.e.

Shorter: [ nevermind, that'll copy the vector instead of uisng it. ] 

newSVpvn(vector, bytes)

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In reply to Re^2: [I::C] Why does it segfault? by ikegami
in thread [I::C] Why does it segfault? by BrowserUk

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