On 07/21/2015 02:25 AM, Mathieu Desnoyers wrote: > But I'm inclined to think that some aspect of the question eludes me, > especially given the amount of interest generated by the gs-segment > selector approach. What am I missing ? %gs is not explicitly mentioned in the x86_64 psABI. This probably led to the assumption that it's unused. I think that's not the right conclusion to draw. -- Florian Weimer / Red Hat Product Security -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html