linux-kernel - Re: [RFC/PATCH] SLQB: Mark the allocator as broken PowerPC and S390

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Message-ID: <4AB21C3D.2080202@in.ibm.com>
Date:	Thu, 17 Sep 2009 16:53:41 +0530
From:	Sachin Sant <sachinp@...ibm.com>
To:	Mel Gorman <mel@....ul.ie>
CC:	Pekka Enberg <penberg@...helsinki.fi>,
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	cl@...ux-foundation.org, heiko.carstens@...ibm.com, mingo@...e.hu,
	npiggin@...e.de
Subject: Re: [RFC/PATCH] SLQB: Mark the allocator as broken PowerPC and S390

Mel Gorman wrote:
> I have access to a ppc machine but not necessarily one with a memoryless nodes
> that can reproduce this problem.
>
> Assuming Sachin is the reporter and we are in the same company, maybe I
> have access to the machine. Sachin, can you mail me privately what this
> machine is called and lets see can I get some time on that machine? By
> any chance, was this bisected or did it just show up when SLQB became
> the default?
>   
Mel,

Have sent you the access details for the machine. This bug showed
up when SLQB was enabled as default in linux-next

Thanks
-Sachin

> Total aside, does anybody know handily if fake NUMA support allows the
> creation of memoryless nodes help reproducing problems like this? If I can't
> get a real machine, that'll be the approach I'll be trying.
>
>   
>> Btw, the code is in slqb/core branch of slab.git in case someone wants
>> to take a stab at fixing the bug.
>>
>>     
>
>   


-- 

---------------------------------
Sachin Sant
IBM Linux Technology Center
India Systems and Technology Labs
Bangalore, India
---------------------------------

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