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

[Pekka Enberg]

Hi Avi,

On Mon, 2010-01-18 at 14:01 +0200, Avi Kivity wrote:
>>> Maybe you place no value on uprobes.  But people who debug userspace
>>> likely will see a reason.

On 01/18/2010 02:06 PM, Peter Zijlstra wrote:
>> I do see value in uprobes, I just don't like it mucking about with the
>> address space. Nor does it appear required.

On Mon, Jan 18, 2010 at 2:09 PM, Avi Kivity <avi@xxxxxxxxxx> wrote:
> Well, the alternatives are very unappealing.  Emulation and single-stepping
> are going to be very slow compared to a couple of jumps.

So how big chunks of the address space are we talking here for uprobes?
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