[DEBUG][io][pid] force initial memset of context
[DEBUG][io][pid] force initial memset of context

This allows a nice cleanup on error, with no segfault

Change-Id: I8e9e263d0715ab5894bc16f4e400eeb76c7af831

Parrot-Developers/fusion,Parrot-Developers/fusion,ncarrier/fusion,ncarrier/fusion