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Date: Wed, 16 Apr 2014 10:44:11 -0700 From: Steven King <sfking@...dc.com> To: Geert Uytterhoeven <geert@...ux-m68k.org> Cc: Joonsoo Kim <iamjoonsoo.kim@....com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, uClinux development list <uclinux-dev@...inux.org> Subject: Re: [uClinux-dev] v3.15-rc1 slab allocator broken on m68knommu (coldfire) On Wednesday 16 April 2014 9:06:57 am Geert Uytterhoeven wrote: > Hi Steven, > > On Wed, Apr 16, 2014 at 5:47 PM, Steven King <sfking@...dc.com> wrote: > > --- a/mm/slab.c > > +++ b/mm/slab.c > > @@ -2572,13 +2572,13 @@ static void *alloc_slabmgmt(struct kmem_cache > > *cachep, return freelist; > > } > > > > -static inline freelist_idx_t get_free_obj(struct page *page, unsigned > > char idx) +static inline freelist_idx_t get_free_obj(struct page *page, > > unsigned int idx) { > > return ((freelist_idx_t *)page->freelist)[idx]; > > } > > > > static inline void set_free_obj(struct page *page, > > - unsigned char idx, freelist_idx_t > > val) + unsigned int idx, > > freelist_idx_t val) { > > ((freelist_idx_t *)(page->freelist))[idx] = val; > > } > > > > > > then v3.15-rc1 will boot using the slab allocator. > > Is "idx" ever larger than 255? > > Gr{oetje,eeting}s, Yes. If I stick if (idx > 255) pr_info("%s %d\n", __func__, idx); in get_free_obj and set_free_obj and see values for idx up into the 400s. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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