From: Christoph Lameter Date: Wed, 22 Aug 2007 21:01:57 +0000 (-0700) Subject: SLUB: do not fail on broken memory configurations X-Git-Tag: v2.6.23-rc4~44 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a2f92ee7e704440995cf5474f4cc7b268bf380e0;p=linux-2.6 SLUB: do not fail on broken memory configurations Print a big fat warning and do what is necessary to continue if a node is marked as up (meaning either node is online (upstream) or node has memory (Andrew's tree)) but allocations from the node do not succeed. Signed-off-by: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/mm/slub.c b/mm/slub.c index 0c106d73f9..04151da399 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1877,9 +1877,16 @@ static struct kmem_cache_node * __init early_kmem_cache_node_alloc(gfp_t gfpflag BUG_ON(kmalloc_caches->size < sizeof(struct kmem_cache_node)); - page = new_slab(kmalloc_caches, gfpflags | GFP_THISNODE, node); + page = new_slab(kmalloc_caches, gfpflags, node); BUG_ON(!page); + if (page_to_nid(page) != node) { + printk(KERN_ERR "SLUB: Unable to allocate memory from " + "node %d\n", node); + printk(KERN_ERR "SLUB: Allocating a useless per node structure " + "in order to be able to continue\n"); + } + n = page->freelist; BUG_ON(!n); page->freelist = get_freepointer(kmalloc_caches, n);