On Sun, 2013-07-28 at 21:22 +0100, Ben Hutchings wrote: > > Since we know lengths > 4K work, perhaps it would be worth testing with > the fragment cache size reduced to 16K? The driver would never > previously have used RX buffers crossing 16K boundaries, except if SLOB > was used (and that's an unlikely combination). Sure, please note the following maths : NET_SKB_PAD + 1536 + sizeof(struct skb_shared_info) = 1920 16384/1920 = 8 32768/1920 = 17 I don't think atl1c is used in any critical host (given it doesn't even provide RX checksums and GRO ...), so I will provide a patch doing mere page allocations. -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html