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> - > - void *buf_addr; /**< Virtual address of segment buffer. */ > + union { > + void *cacheline0; > + void *buf_addr; /**< Virtual address of segment buffer. */ > + }; This marker is never used, so we should just look to drop it. I think it was originally added to have an equivalent to the cacheline1 marker. However, that would be an ABI change, so I'm ok to have this as-is for now. /Bruce