linux-kernel - Re: [PATCH] Fix crash during slab init

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Date:	Wed, 8 May 2013 13:10:05 -0700
From:	Sören Brinkmann <soren.brinkmann@...inx.com>
To:	Chris Mason <clmason@...ionio.com>
CC:	Christoph Lameter <cl@...ux.com>,
	Pekka Enberg <penberg@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Tony Lindgren <tony@...mide.com>
Subject: Re: [PATCH] Fix crash during slab init

On Wed, May 08, 2013 at 03:56:28PM -0400, Chris Mason wrote:
> Commit 8a965b3b introduced a regression that caused us to crash early
> during boot.  The commit was introducing ordering of slab creation,
> making sure two odd-sized slabs were created after specific powers of
> two sizes.
> 
> But, if any of the  power of two slabs were created earlier during boot,
> slabs at index 1 or 2 might not get created at all.  This patch makes
> sure none of the slabs get skipped.
> 
> Tony Lindgren bisected this down to the offending commit, which really
> helped because bisect kept bringing me to almost but not quite this one.
> 
> Signed-off-by: Chris Mason <chris.mason@...ionio.com>
> Acked-by: Christoph Lameter <cl@...ux.com>
> Acked-by: Tony Lindgren <tony@...mide.com>
Acked-by: Soren Brinkmann <soren.brinkmann@...inx.com>

Fixes things for me on Zynq, too.

	Sören


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