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

From: Peter Zijlstra
Date: Fri Jan 15 2010 - 04:03:53 EST


On Thu, 2010-01-14 at 11:46 -0800, Jim Keniston wrote:
>
> +Instruction copies to be single-stepped are stored in a per-process
> +"single-step out of line (XOL) area," which is a little VM area
> +created by Uprobes in each probed process's address space.

I think tinkering with the probed process's address space is a no-no.
Have you ran this by the linux mm folks? I'd be inclined to NAK this
straight out.

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