linux-kernel - Re: sched: CPU #1's llc-sibling CPU #0 is not on the same node!

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Message-ID: <6d811f43-e966-4885-9a2e-30b0b71466e0@email.android.com>
Date:	Fri, 01 Mar 2013 07:32:48 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Ingo Molnar <mingo@...nel.org>, Borislav Petkov <bp@...en8.de>,
	Martin Bligh <mbligh@...igh.org>,
	Yinghai Lu <yinghai@...nel.org>,
	Don Morris <don.morris@...com>, Tejun Heo <tj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Tony Luck <tony.luck@...el.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Tim Gardner <tim.gardner@...onical.com>,
	linux-kernel@...r.kernel.org, tglx@...utronix.de, mingo@...hat.com,
	x86@...nel.org, a.p.zijlstra@...llo.nl, jarkko.sakkinen@...el.com,
	tangchen@...fujitsu.com
Subject: Re: sched: CPU #1's llc-sibling CPU #0 is not on the same node!

If NUMAQ is breaking real stuff we can kill it by marking it BROKEN.  Rip-out is 3.10 at this stage.

Ingo Molnar <mingo@...nel.org> wrote:

>
>* Borislav Petkov <bp@...en8.de> wrote:
>
>> On Thu, Feb 28, 2013 at 10:37:10PM -0800, H. Peter Anvin wrote:
>> > I'd be very happy to get the NUMAQ code ripped out.  I am wondering
>if
>> > there are any reasons to keep any 32-bit x86 NUMA code at all.
>> 
>> How much would it hurt us if we said 3.8 is the last kernel that
>supported NUMAQ? 
>> If anyone wants the functionality, they should use 3.8 or older.
>
>v3.9 - any non-trivial patch in the stage of being contemplated near
>the end of the 
>v3.9 merge window is most likely v3.10 material.
>
>Thanks,
>
>	Ingo

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