Re: [RFC] [PATCH 1/7] User Space Breakpoint Assistance Layer (UBP)

From: Peter Zijlstra
Date: Sun Jan 17 2010 - 09:52:37 EST

On Sun, 2010-01-17 at 16:39 +0200, Avi Kivity wrote:
> On 01/15/2010 11:50 AM, Peter Zijlstra wrote:
> > As previously stated, I think poking at a process's address space is an
> > utter no-go.
> >
> Why not reserve an address space range for this, somewhere near the top
> of memory? It doesn't have to be populated if it isn't used.

Because I think poking at a process's address space like that is gross.
Also, if its fixed size you're imposing artificial limits on the number
of possible probes.

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