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

[Linus Torvalds]

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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