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Date: Wed, 15 Nov 2006 11:07:59 -0800 (PST)
From: Linus Torvalds <torvalds@osdl.org>
To: Andi Kleen <ak@suse.de>
cc: Andrew Morton <akpm@osdl.org>, discuss@x86-64.org,
       William Cohen <wcohen@redhat.com>, Eric Dumazet <dada1@cosmosbay.com>,
       Komuro <komurojun-mbn@nifty.com>, Ernst Herzberg <earny@net4u.de>,
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       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       "Eric W. Biederman" <ebiederm@xmission.com>,
       Andrey Borzenkov <arvidjaar@mail.ru>
Subject: Re: [discuss] Re: 2.6.19-rc5: known regressions (v3)
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On Wed, 15 Nov 2006, Andi Kleen wrote:
> > 
> > Meanwhile we should restore the NMI counter to fix this bug.
> 
> No, it was always oprofile who was buggy here, silently taking 
> the nmi watchdog away.

Andi, your "blame game" doesn't matter.

The fact is, it used to work, and the kernel changed interfaces, so now it 
doesn't. 

In other words, a kernel interface to user land changed. THAT IS ALWAYS A 
BUG. We don't change UI.

Yes, "oprofile" should be fixed to not depend on that, but the kernel 
shouldn't change the interfaces, and we should add back the zero entry.

		Linus
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