linux-kernel - Re: [PATCH] Resurect proper handling of maxcpus= kernel option

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Date:	Thu, 07 Aug 2008 10:22:59 -0700
From:	Max Krasnyansky <maxk@...lcomm.com>
To:	Jeff Chua <jeff.chua.linux@...il.com>
CC:	Li Zefan <lizf@...fujitsu.com>, mingo@...e.hu,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Resurect proper handling of maxcpus= kernel option

Jeff Chua wrote:
> On Thu, Aug 7, 2008 at 12:00 PM, Li Zefan <lizf@...fujitsu.com> wrote:
> 
>> I booted my 2-core x86_32 box with maxcpus=1, and saw cpu1 was offline,
> 
> Test on Lenovo X60s (CoreDuo) 2 CPUs with maxcpus=1, and Dell R900
> (Xeon QuadCore x4) 16 CPUs with maxcpus=8.
> 
> All working. I can switch online and offline up to 2CPUs on X60s, and
> 16CPUs on R900.
> 
>> and then I got softlockup BUG immediately when I onlined cpu1:
> 
> I'm using latest linux kernel.

Excellent.

Andrew, Ingo, can one of you guys please push this patch to mainline.

Thanx
Max

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