Messages in this thread | | | Date | Mon, 11 Jun 2007 17:58:12 +0200 | From | "Håvard Skinnemoen" <> | Subject | Re: kernel BUG at mm/slub.c:3689! |
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On 6/11/07, Paul Mundt <lethal@linux-sh.org> wrote: > On Mon, Jun 11, 2007 at 04:19:26PM +0200, Haavard Skinnemoen wrote: > > I think the combination that triggered this bug was: > > * CONFIG_SLUB_DEBUG=y > > * ARCH_KMALLOC_MINALIGN=32 > > * slub_debug not set at the command line > > > ARCH_KMALLOC_MINALIGN and ARCH_SLAB_MINALIGN are both in bytes > (ARCH_KMALLOC_MINALIGN used to be defined as BYTES_PER_WORD) if I recall > correctly, are you sure this is what you want?
Yeah, I actually defined it to L1_CACHE_BYTES. The idea is to avoid cacheline sharing between different kmalloc() allocations, which may mess up DMA transfers. So 32 bytes alignment is indeed what I want.
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