Re: 2.6.14-rc2 early boot OOPS (mm/slab.c:1767)

Re: 2.6.14-rc2 early boot OOPS (mm/slab.c:1767)

[Christoph Lameter]

On Tue, 27 Sep 2005, Tomi Lapinlampi wrote:

> I'm getting the following OOPS with 2.6.14-rc2 on an Alpha.

Hmmm. I am not familiar with Alpha. The .config looks as if this is a 
uniprocessor configuration? No NUMA? 

What is the value of MAX_NUMNODES?

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Re: 2.6.14-rc2 early boot OOPS (mm/slab.c:1767)

[Tomi Lapinlampi]

On Tue, Sep 27, 2005 at 04:35:54PM -0700, Christoph Lameter wrote:
> On Tue, 27 Sep 2005, Tomi Lapinlampi wrote:
> 
> > I'm getting the following OOPS with 2.6.14-rc2 on an Alpha.
> 
> Hmmm. I am not familiar with Alpha. The .config looks as if this is a 
> uniprocessor configuration? No NUMA? 

This is a simple uniprocessor configuration, no NUMA, no SMP. 

> What is the value of MAX_NUMNODES?

I'm not familiar with NUMA, where can I check this (or does this question
even apply since it's not a NUMA system) ?

Plase keep me cc:'d,

Tomi

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Re: 2.6.14-rc2 early boot OOPS (mm/slab.c:1767)

[Andrew Morton]

lapinlam@vega.lnet.lut.fi (Tomi Lapinlampi) wrote:
>
>  On Tue, Sep 27, 2005 at 04:35:54PM -0700, Christoph Lameter wrote:
>  > On Tue, 27 Sep 2005, Tomi Lapinlampi wrote:
>  > 
>  > > I'm getting the following OOPS with 2.6.14-rc2 on an Alpha.
>  > 
>  > Hmmm. I am not familiar with Alpha. The .config looks as if this is a 
>  > uniprocessor configuration? No NUMA? 
> 
>  This is a simple uniprocessor configuration, no NUMA, no SMP. 

It might be due to the indev_of()-doesn't-get-inlined problem.  I'm not
sure what the symptoms of that were.  Please try
ftp://ftp.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.14-rc2-git6.gz
which has fixes.

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Re: 2.6.14-rc2 early boot OOPS (mm/slab.c:1767)

[Christoph Lameter]

On Wed, 28 Sep 2005, Tomi Lapinlampi wrote:

> > Hmmm. I am not familiar with Alpha. The .config looks as if this is a 
> > uniprocessor configuration? No NUMA? 
> 
> This is a simple uniprocessor configuration, no NUMA, no SMP. 
> 
> > What is the value of MAX_NUMNODES?
> 
> I'm not familiar with NUMA, where can I check this (or does this question
> even apply since it's not a NUMA system) ?

Well, one use of memory nodes is to describe discontiguous memory on some 
architectures. Thus the number of nodes may be more than one even if 
CONFIG_NUMA is off. This is the case f.e. on ppc64. There may be some arch 
specific settings that cause problems here. 


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