On Fri, Aug 12, 2016 at 7:29 AM, Josh Poimboeuf <jpoim...@redhat.com> wrote: > There has been a 64-byte gap at the end of the irq stack for at least 12 > years. It predates git history, and I can't find any good reason for > it. Remove it. What's the worst that could happen?
I can't think of any reason this would matter. For that matter, do you have any idea why irq_stack_union is a union or why we insist on sticking it at %gs:0? Sure, the *canary* needs to live at a fixed offset (because GCC is daft, sigh), but I don't see what that has to do with the rest of the IRQ stack. --Andy
