> If usergs == kernelgs, then ebx will always be 1 and we'll never end > up in paranoid_userspace.
You may miss a reschedule in this obscure case. It shouldn't really happen because loading a kernel pointer is not useful for user space. Doesn't seem like a real issue to me. We only happen need to handle it to avoid crashing. > Alternatively, what if the paranoid entry checked whether we're coming > from userspace at the very beginning and, if so, just jumped to the > non-paranoid entry? That would work, but I doubt it would be worth it. -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
