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Date: Fri, 1 Jun 2007 12:18:26 -0700 (PDT)
From: Christoph Lameter <clameter@sgi.com>
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To: Paul Jackson <pj@sgi.com>
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Subject: Re: [RFC] [PATCH] cpuset operations causes Badness at mm/slab.c:777
 warning
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On Fri, 1 Jun 2007, Paul Jackson wrote:

> What do you mean, Christoph, by "then any dereferences will fail" ?
> That sounds bad to me -- we don't want pointer dereferences failing
> in the kernel, do we?  Wouldn't you have to add some more lines of
> code, a bit further down, where pidarray is used, to avoid trying to
> use it if its NULL?

The allocated array has 0 bytes. Any dereference is an error.