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Date: Thu, 26 Jul 2007 20:04:37 +0200 From: Peter Zijlstra <a.p.zijlstra@...llo.nl> To: Ingo Molnar <mingo@...e.hu> Cc: Michal Piotrowski <michal.k.k.piotrowski@...il.com>, Andrew Morton <akpm@...ux-foundation.org>, Christoph Lameter <clameter@....com>, linux-kernel@...r.kernel.org Subject: Re: [bug] SLUB & freeing locks [was: Re: 2.6.23-rc1: known regressions with patches] On Thu, 2007-07-26 at 11:26 +0200, Peter Zijlstra wrote: > --- > mm/slub.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > Index: linux-2.6/mm/slub.c > =================================================================== > --- linux-2.6.orig/mm/slub.c > +++ linux-2.6/mm/slub.c > @@ -1131,6 +1131,7 @@ static void __free_slab(struct kmem_cach > slab_pad_check(s, page); > for_each_object(p, s, page_address(page)) > check_object(s, page, p, 0); > + ClearSlabDebug(page); > } > > mod_zone_page_state(page_zone(page), > @@ -1169,7 +1170,6 @@ static void discard_slab(struct kmem_cac > > atomic_long_dec(&n->nr_slabs); > reset_page_mapcount(page); > - ClearSlabDebug(page); > __ClearPageSlab(page); > free_slab(s, page); > } > Christoph, how about this bit, it looks to me like we clear SlabDebug() before we hit the last check in __free_slab(). - 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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