On Wed, 2009-09-09 at 17:55 +0100, Mel Gorman wrote: > On Wed, Sep 09, 2009 at 05:59:30PM +0200, Frans Pop wrote: > > On Wednesday 09 September 2009, Mel Gorman wrote: > > > Franz, in the full dmesg was there any mention of "SLUB: Unable to > > > allocate memory on node"? > > > > No, nothing at all. I double checked the kernel log, but it was completely > > quiet in the hours before and after the messages I already posted. > > > > Ok, that in itself is unexpected. > > Pekka, it looks from the stack trace that the failure is from > __alloc_skb and I am guessing the failure path is around here > > size = SKB_DATA_ALIGN(size); > data = kmalloc_node_track_caller(size + sizeof(struct skb_shared_info), > gfp_mask, node); > if (!data) > goto nodata; > > Why would the SLUB out-of-memory message not appear? It's hardly > tripping up on printk_ratelimit() is it? That's because it's a large allocation that's passed directly to the page allocator. See kmalloc_large_node(), for example. Pekka -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
