On Mon, 13 Aug 2007 16:21:10 +0200 Andi Kleen wrote:
> > I though you did, but since I never saw it appear in any release, I posted
> > this one...
>
> It's a little different (and somewhat hackish I admit)
> ftp://firstfloor.org/pub/ak/x86_64/debug/last-branch
> It has far more overhead than yours of course.
>
> The only way to merge something like that would be dynamic
> patching and I was never quite motivated for that.
>
> > So especially with the first concern of yours - is it worth at all rev-ing this
> > patch to address the other change requests you voiced?
>
> The patch is useful even with the race, just document somewhere
> that it is unreliable (perhaps in the printk itself) and do the
> other changes.
and add "ler" entry to Documentation/kernel-parameters.txt, please,
with what it means.
> I would also suggest to enable it by default.
---
~Randy
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