On Wed, 26 Jul 2006, Heiko Carstens wrote:
> Since ARCH_KMALLOC_MINALIGN didn't work on s390 I tried ARCH_SLAB_MINALIGN
> instead, just to find out that it didn't work too.
> In case of CONFIG_DEBUG_SLAB kmem_cache_create() creates caches with an
> alignment lesser than ARCH_SLAB_MINALIGN, which it shouldn't according to
> this comment in mm/slab.c :
[snip]
> Index: linux-2.6/mm/slab.c
> ===================================================================
> --- linux-2.6.orig/mm/slab.c 2006-07-26 09:55:54.000000000 +0200
> +++ linux-2.6/mm/slab.c 2006-07-26 09:57:07.000000000 +0200
> @@ -2103,6 +2103,9 @@
> if (ralign > BYTES_PER_WORD)
> flags &= ~(SLAB_RED_ZONE | SLAB_STORE_USER);
> }
> + if (BYTES_PER_WORD < ARCH_SLAB_MINALIGN)
> + flags &= ~(SLAB_RED_ZONE | SLAB_STORE_USER);
> +
> /* 3) caller mandated alignment: disables debug if necessary */
> if (ralign < align) {
> ralign = align;
This is similar to my patch and should be enough to fix the problem. The
first patch seems bogus and I don't really understand why you would need
it.
Pekka
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
