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

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Message-Id: <20061115210501.feaf230c.akpm@osdl.org>
Date:	Wed, 15 Nov 2006 21:05:01 -0800
From:	Andrew Morton <akpm@...l.org>
To:	Andi Kleen <ak@...e.de>
Cc:	Linus Torvalds <torvalds@...l.org>, discuss@...-64.org,
	William Cohen <wcohen@...hat.com>,
	Eric Dumazet <dada1@...mosbay.com>,
	Komuro <komurojun-mbn@...ty.com>,
	Ernst Herzberg <earny@...4u.de>,
	Andre Noll <maan@...temlinux.org>,
	oprofile-list@...ts.sourceforge.net,
	Jens Axboe <jens.axboe@...cle.com>,
	linux-usb-devel@...ts.sourceforge.net, phil.el@...adoo.fr,
	Adrian Bunk <bunk@...sta.de>, Ingo Molnar <mingo@...hat.com>,
	Alan Stern <stern@...land.harvard.edu>,
	linux-pci@...ey.karlin.mff.cuni.cz,
	Stephen Hemminger <shemminger@...l.org>,
	Prakash Punnoor <prakash@...noor.de>,
	Len Brown <len.brown@...el.com>,
	Alex Romosan <romosan@...orax.lbl.gov>, gregkh@...e.de,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Andrey Borzenkov <arvidjaar@...l.ru>
Subject: Re: [discuss] Re: 2.6.19-rc5: known regressions (v3)

On Thu, 16 Nov 2006 04:21:09 +0100
Andi Kleen <ak@...e.de> 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.

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

What did it do?

> I would say it busted
> itself.

It gave profiles, which was fairly handy.
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