Re: [patch] slab: always follow arch requested alignments

[Christoph Lameter]

On Wed, 26 Jul 2006, Pekka J Enberg wrote:

> On Wed, 26 Jul 2006, Christoph Lameter wrote:
> > Well that is a bit far reaching. What is broken is that SLAB_RED_ZONE and
> > SLAB_STORE_USER ignore any given alignment. If you want to fix that then 
> > you need to modify how both debugging methods work.
> 
> Not sure I understand what you mean. Isn't it enough that we disable 
> debugging if architecture or caller mandated alignment is greater than 
> BYTES_PER_WORD?

If you disable them then we are fine. I think the main "bug" is that 
we create the caches with ARCH_KMALLOC_MINALIGN in kmem_cache_init but 
allow debug options on them. It seemss that we need to be able to disable 
debugging from kmem_cache_init.
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