Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422684AbWJPQBJ (ORCPT ); Mon, 16 Oct 2006 12:01:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1422694AbWJPQBJ (ORCPT ); Mon, 16 Oct 2006 12:01:09 -0400 Received: from e6.ny.us.ibm.com ([32.97.182.146]:58331 "EHLO e6.ny.us.ibm.com") by vger.kernel.org with ESMTP id S1422684AbWJPQBH (ORCPT ); Mon, 16 Oct 2006 12:01:07 -0400 Subject: Re: kernel BUG in __cache_alloc_node at linux-2.6.git/mm/slab.c:3177! From: Will Schmidt Reply-To: will_schmidt@vnet.ibm.com To: Christoph Lameter Cc: linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org In-Reply-To: References: <1160764895.11239.14.camel@farscape> <1160769226.11239.22.camel@farscape> <1160773040.11239.28.camel@farscape> Content-Type: text/plain Organization: IBM Date: Mon, 16 Oct 2006 11:00:57 -0500 Message-Id: <1161014457.31903.1.camel@farscape> Mime-Version: 1.0 X-Mailer: Evolution 2.6.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1571 Lines: 47 On Fri, 2006-13-10 at 15:22 -0700, Christoph Lameter wrote: > Here is another fall back fix checking if the slab has already been setup > for this node. MPOL_INTERLEAVE could redirect the allocation. > with this patch applied, a different error in the same area.. freeing bootmem node 0 freeing bootmem node 1 Memory: 530256k/557056k available (5508k kernel code, 30468k reserved, 2224k data, 543k bss, 244k init) Kernel panic - not syncing: kmem_cache_create(): failed to create slab `size-32' > Index: linux-2.6.19-rc1-mm1/mm/slab.c > =================================================================== > --- linux-2.6.19-rc1-mm1.orig/mm/slab.c 2006-10-10 21:47:12.949563383 -0500 > +++ linux-2.6.19-rc1-mm1/mm/slab.c 2006-10-13 17:21:31.937863714 -0500 > @@ -3158,12 +3158,15 @@ void *fallback_alloc(struct kmem_cache * > struct zone **z; > void *obj = NULL; > > - for (z = zonelist->zones; *z && !obj; z++) > + for (z = zonelist->zones; *z && !obj; z++) { > + int nid = zone_to_nid(*z); > + > if (zone_idx(*z) <= ZONE_NORMAL && > - cpuset_zone_allowed(*z, flags)) > + cpuset_zone_allowed(*z, flags) && > + cache->nodelists[nid]) > obj = __cache_alloc_node(cache, > - flags | __GFP_THISNODE, > - zone_to_nid(*z)); > + flags | __GFP_THISNODE, nid); > + } > return obj; > } > > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/