Add to that, another place that is definitely problematic is

https://github.com/openresty/lua-nginx-module/blob/master/src/ngx_http_lua_util.h#L354

Now we can hack around all places with the mask and restores the original address when reading, but I fear that is gonna get ugly very soon and may break again once the memory layout changes (mostly due to new architecture). It seems to me there is no portable way of fixing this unless LuaJIT stops using memory addresses to piggyback information.

Background reading:

Lightuserdata on ARM64 #1152

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