Re: [PATCH 2/4] MIPS Kprobes: Deny probes on ll/sc instructions

[Ralf Baechle]

On Tue, Nov 08, 2011 at 03:26:42PM -0800, Victor Kamensky wrote:

> > s/insturctions/instructions/
> >
> > Not only is it a bad idea, it will probably make them fail 100% of the time.
> >
> > It is also an equally bad idea to place a probe between any LL and SC
> > instructions.  How do you prevent that?
> 
> As per below code comment we don't prevent that. There is no way to do
> that.

Similar to the way that the addresses of loads and stores from userspace
are recorded in a special section we could build a list of forbidden
address range.

Is it worth it?

  Ralf
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