kworker - page allocation failure

[417651.723450] kworker/0:1: page allocation failure: order:1, mode:0x20
[417651.723540] Pid: 0, comm: kworker/0:1 Not tainted 3.0.4intel #1
[417651.723617] Call Trace:
[417651.723685]  <IRQ>  [<ffffffff8109d003>] warn_alloc_failed+0xf3/0x170
[417651.723819]  [<ffffffff8103ad2d>] ? default_wake_function+0xd/0x10
[417651.723898]  [<ffffffff8103120e>] ? __wake_up+0x4e/0x70
[417651.723973]  [<ffffffff8109d70c>] __alloc_pages_nodemask+0x59c/0x7b0
[417651.724050]  [<ffffffff8109d70c>] ? __alloc_pages_nodemask+0x59c/0x7b0
[417651.724130]  [<ffffffff81063485>] ? sched_clock_local+0x25/0x90
[417651.724208]  [<ffffffff810cc922>] kmem_getpages+0x62/0x160
[417651.724283]  [<ffffffff810ccb67>] fallback_alloc+0x147/0x1e0
[417651.724359]  [<ffffffff810ccc8c>] ____cache_alloc_node+0x8c/0x160
[417651.724413]  [<ffffffff810cd8bb>] kmem_cache_alloc+0x14b/0x160
[417651.724413]  [<ffffffff8147b41e>] sk_prot_alloc+0x3e/0x120
[417651.724413]  [<ffffffff8147b60d>] sk_clone+0x1d/0x2d0
[417651.724413]  [<ffffffff814b9b23>] inet_csk_clone+0x13/0xb0
[417651.724413]  [<ffffffff814d2805>] tcp_create_openreq_child+0x25/0x480
[417651.724413]  [<ffffffff814d0dc7>] tcp_v4_syn_recv_sock+0x47/0x230
[417651.724413]  [<ffffffff814d265d>] tcp_check_req+0x30d/0x490
[417651.724413]  [<ffffffff814d04aa>] tcp_v4_do_rcv+0x1ca/0x2d0
[417651.724413]  [<ffffffff814a85a4>] ? nf_iterate+0x84/0xb0
[417651.724413]  [<ffffffff8124c8b5>] ? cpumask_next_and+0x25/0x40
[417651.724413]  [<ffffffff814d0c91>] tcp_v4_rcv+0x6e1/0x7d0
[417651.724413]  [<ffffffff814a8726>] ? nf_hook_slow+0x76/0x140
[417651.724413]  [<ffffffff814af8e5>] ip_local_deliver_finish+0xc5/0x190
[417651.724413]  [<ffffffff814afa3d>] ip_local_deliver+0x8d/0xa0
[417651.724413]  [<ffffffff814af362>] ip_rcv_finish+0x172/0x340
[417651.724413]  [<ffffffff814af79b>] ip_rcv+0x26b/0x2f0
[417651.724413]  [<ffffffff814875c6>] __netif_receive_skb+0x406/0x460
[417651.724413]  [<ffffffff81489408>] netif_receive_skb+0x78/0x80
[417651.724413]  [<ffffffff81489540>] napi_skb_finish+0x50/0x70
[417651.724413]  [<ffffffff81489ac5>] napi_gro_receive+0xc5/0xd0
[417651.724413]  [<ffffffff813cf6e6>] e1000_receive_skb+0x56/0x70
[417651.724413]  [<ffffffff813cf97f>] e1000_clean_rx_irq+0x27f/0x370
[417651.724413]  [<ffffffff813d150d>] e1000_clean+0x7d/0x2f0
[417651.724413]  [<ffffffff8103b038>] ? scheduler_tick+0xd8/0x2c0
[417651.724413]  [<ffffffff81489c6a>] net_rx_action+0xea/0x1f0
[417651.724413]  [<ffffffff81046cda>] __do_softirq+0x9a/0x150
[417651.724413]  [<ffffffff8153634c>] call_softirq+0x1c/0x30
[417651.724413]  [<ffffffff810045b5>] do_softirq+0x55/0x90
[417651.724413]  [<ffffffff81046a3d>] irq_exit+0xad/0xe0
[417651.724413]  [<ffffffff81003d94>] do_IRQ+0x64/0xe0
[417651.724413]  [<ffffffff81534bd3>] common_interrupt+0x13/0x13
[417651.724413]  <EOI>  [<ffffffff810635b8>] ? sched_clock_cpu+0xc8/0x100
[417651.724413]  [<ffffffff8100a2cb>] ? mwait_idle+0x6b/0x80
[417651.724413]  [<ffffffff81001ef0>] ? enter_idle+0x20/0x30
[417651.724413]  [<ffffffff81001fb1>] cpu_idle+0xb1/0x110
[417651.724413]  [<ffffffff818e082d>] start_secondary+0x1e4/0x227