I found find_next_best_node() was wrong. I confirmed boot up by the following patch. Mel-san, Kamalesh-san, could you try this?
Bye. --- Fix decision of memoryless node in find_next_best_node(). This can be cause of SW-IOMMU's allocation failure. This patch is for 2.6.23-rc3-mm1. Signed-off-by: Yasunori Goto <[EMAIL PROTECTED]> --- mm/page_alloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: current/mm/page_alloc.c =================================================================== --- current.orig/mm/page_alloc.c 2007-08-24 16:03:17.000000000 +0900 +++ current/mm/page_alloc.c 2007-08-24 16:04:06.000000000 +0900 @@ -2136,7 +2136,7 @@ static int find_next_best_node(int node, * Note: N_HIGH_MEMORY state not guaranteed to be * populated yet. */ - if (pgdat->node_present_pages) + if (!pgdat->node_present_pages) continue; /* Don't want a node to appear more than once */ -- Yasunori Goto - 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/