Re: [RFC PATCH 2/8] jump label v4 - x86: Introduce generic jumppatching without stop_machine

From: Arjan van de Ven
Date: Mon Jan 18 2010 - 11:31:44 EST

On Mon, 18 Jan 2010 10:59:30 -0500
Masami Hiramatsu <mhiramat@xxxxxxxxxx> wrote:

> Yeah, so in the latest patch, I updated it to use int3 even if
> len == 1. :-)

int3 is not making a difference for your case; there is no guarantee
that the other processor even sees the "int3 inbetween state" at all;
if it's not safe without int3 then it won't be safe with int3 either.

Arjan van de Ven Intel Open Source Technology Centre
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