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

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Message-Id: <20061122104245.3ce89487.akpm@osdl.org>
Date:	Wed, 22 Nov 2006 10:42:45 -0800
From:	Andrew Morton <akpm@...l.org>
To:	Andi Kleen <ak@...e.de>
Cc:	Eric Dumazet <dada1@...mosbay.com>, Adrian Bunk <bunk@...sta.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Stephen Hemminger <shemminger@...l.org>, gregkh@...e.de,
	Ingo Molnar <mingo@...hat.com>,
	Len Brown <len.brown@...el.com>, phil.el@...adoo.fr,
	oprofile-list@...ts.sourceforge.net
Subject: Re: 2.6.19-rc5: known regressions (v3)

On Wed, 22 Nov 2006 11:36:14 +0100
Andi Kleen <ak@...e.de> wrote:

> On Wednesday 22 November 2006 11:28, Eric Dumazet wrote:
> > On Wednesday 15 November 2006 11:35, Eric Dumazet wrote:
> > > On Wednesday 15 November 2006 11:21, Adrian Bunk wrote:
> > > > Subject    : x86_64: oprofile doesn't work
> > > > References : http://lkml.org/lkml/2006/10/27/3
> > > > Submitter  : Prakash Punnoor <prakash@...noor.de>
> > > > Status     : unknown
> > >
> > 
> > I hit the same problem on i386 architecture too, if CONFIG_ACPI is not set.
> 
> oprofile is still broken because it cannot deal with the lack of perfctr 0.

The kernel is still broken because we changed the interface.

> You can disable the nmi watchdog as a workaround.

I don't understand why you think this is acceptable.
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