Re: [RFC][PATCH] x86: make text_poke() atomic

[H. Peter Anvin]

Masami Hiramatsu wrote:
> > > Stop machine is not required when inserting a breakpoint. 
> >
> > that is your assumption; when I spoke with CPU architects they
> > cringed ;(
>
> Is that true even if modifying just one-byte (like int3 insertion)
> and we don't care synchronous write(that means code modification
> effects on other processors after a while)?

The problem is that he's using is as part of a sequenced series of 
steps.  The lack of synchronization comes into play there.

	-hpa

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