Re: [PATCH v7 3.2-rc2 5/30] uprobes: copy of the originalinstruction.

From: Steven Rostedt
Date: Wed Nov 23 2011 - 14:49:12 EST


On Wed, 2011-11-23 at 19:40 +0100, Peter Zijlstra wrote:
> On Fri, 2011-11-18 at 16:37 +0530, Srikar Dronamraju wrote:
> > + /* TODO : Analysis and verification of instruction */
>
> As in refuse to set a breakpoint on an instruction we can't deal with?
>
> Do we care? The worst case we'll crash the program, but if we're allowed
> setting uprobes we already have enough privileges to do that anyway,
> right?

Well, I wouldn't be happy if I was running a server, and needed to
analyze something it was doing, and because I screwed up the location of
my probe, I crash the server, made lots of people unhappy and lose my
job over it.

I think we do care, but it can be a TODO item.

-- Steve


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