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Date: Mon, 13 Aug 2007 09:45:20 -0700 From: Randy Dunlap <randy.dunlap@...cle.com> To: Andi Kleen <ak@...e.de> Cc: Jan Beulich <jbeulich@...ell.com>, linux-kernel@...r.kernel.org, patches@...-64.org Subject: Re: [PATCH] x86: optionally show last exception from/to register contents 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 *** Remember to use Documentation/SubmitChecklist when testing your code *** - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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