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

[Pavel Machek]

On Sun 2010-01-17 16:01:46, Peter Zijlstra wrote:
> On Sun, 2010-01-17 at 16:56 +0200, Avi Kivity wrote:
> > On 01/17/2010 04:52 PM, Peter Zijlstra wrote:
> 
> > > Also, if its fixed size you're imposing artificial limits on the number
> > > of possible probes.
> > >    
> > 
> > Obviously we'll need a limit, a uprobe will also take kernel memory, we 
> > can't allow people to exhaust it.
> 
> Only if its unprivilidged, kernel and root should be able to place as
> many probes until the machine keels over.

Well, it is address space that limits you in both cases...

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