Re: [discuss] Re: 2.6.19-rc5: known regressions (v3)

[Andi Kleen]

On Thursday 16 November 2006 06:05, Andrew Morton wrote:
> On Thu, 16 Nov 2006 04:21:09 +0100
> Andi Kleen <ak@xxxxxxx> wrote:
> 
> > > 
> > > If it's really true that oprofile is simply busted then that's a serious
> > > problem and we should find some way of unbusting it.  If that means just
> > > adding a dummy "0" entry which always returns zero or something like that,
> > > then fine.
> > 
> > That could be probably done.
> 
> I'm told that this is exactly what it was doing before it got changed.

Hmm, ok perhaps that can be arranged again.

The trouble is that I want to use this performance counter for
other purposes too, so we would run into trouble again 
if oprofile keeps stealing it.

> > > But we can't just go and bust it.
> > 
> > It just did something unbelievable broken before.
> 
> What did it do?

Silently kill the nmi watchdog.

> 
> > I would say it busted
> > itself.
> 
> It gave profiles, which was fairly handy.

I'm sure it can be fixed there. Ok ok I keep sounding like a sysfs maintainer
now @)

-Andi
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