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Date: Wed, 8 May 2013 13:56:06 +0000
From: Christoph Lameter <cl@linux.com>
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To: Tony Lindgren <tony@atomide.com>
cc: Pekka Enberg <penberg@kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
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Subject: Re: [GIT PULL] SLAB changes for v3.10
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On Tue, 7 May 2013, Tony Lindgren wrote:

> OK got it narrowed down to CONFIG_DEBUG_SPINLOCK=y causing the problem
> with commit 8a965b3b. Ain't nothing like bisecting and booting and then
> diffing .config files on top of that.
>
> > Without reverting 8a965b3b I'm getting:

The patch (commit 8a965b3baa89ffedc73c0fbc750006c631012ced) merely changed the sequence of
slab creation to address an issue in SLAB.

Hmmm.. But if KMALLOC_SHIFT_LOW is higher than 6 or 7 then the creation of
the non-power of two slab could be skipped as a result of the patch. But
we should not need them in those cases.

Can I see the kernel config?

What is the value of KMALLOC_SHIFT_LOW?

Can you figure out which kernel slab the function is trying to access?


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