Re: Dealing with the NMI mess

[Peter Zijlstra]

On Fri, Jul 24, 2015 at 05:26:37PM +0200, Willy Tarreau wrote:
> > 
> > The point is, if we trigger a #DB on an instruction breakpoint
> > while !IF, then we simply disable that breakpoint and do the RET.
> 
> Yes but the breakpoint remains disabled then. Or I'm missing
> something.

http://marc.info/?l=linux-kernel&m=143773601130974

We re-enable before going back to userspace.
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