Re: Dealing with the NMI mess

[Peter Zijlstra]

On Thu, Jul 23, 2015 at 02:59:46PM -0700, Andy Lutomirski wrote:
> OK, new proposal:
> 
> In do_debug, if we trip an instruction breakpoint while
> !user_mode(regs) && ((regs->flags & X86_EFLAGS_IF) == 0), then disarm
> *that breakpoint*.

Doesn't !IF already imply that it must be kernel space? AFAIK user space
cannot clear IF.
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