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I'd love to! Unfortunately, it's proprietary, confidental. I would have loved to get peer review of the codebase, but that was forbidden also. Secret sauce.
Maybe I can cobble together a separate example that fails in a similar way...
...You know, actually I can't. I couldn't ever reproduce the problem on anything but those old rhel machines and I don't have access to them anymore (that project is done). The threads::shared code worked on all my own servers.
What I can do is share a sample (mock) marshalled datastructure "storable" that contains a datastructure which in all likelihood would have made the original code/server puke. The act of passing structs like the dummy storable I'll share with you is what made the segfaults happen.
I'll need a few hours before I can get that. It might be as long as tomorrow.
Maybe there's something to be learned here, which I would enjoy very much!
$ perl -MMIME::Base64 -e 'print decode_base64 "YWNlQHRvbW15YnV0bGVyLm1lCg=="'