No swap no good.

gistfile1.txt

[2662122.262113] swapper: page allocation failure. order:0, mode:0x20[2662122.262119] Pid: 0, comm: swapper Not tainted 2.6.32-314-ec2 #27-Ubuntu
[2662122.262122] Call Trace:
[2662122.262124]  <IRQ>  [<ffffffff810b432c>] __alloc_pages_slowpath+0x46c/0x580[2662122.262142]  [<ffffffff81436cc0>] ? ip_local_deliver_finish+0x0/0x2d0[2662122.262146]  [<ffffffff810b45b1>] __alloc_pages_nodemask+0x171/0x180
[2662122.262151]  [<ffffffff810e3a7c>] T.618+0x11c/0x480
[2662122.262154]  [<ffffffff810e401e>] cache_alloc_refill+0x23e/0x280
[2662122.262156]  [<ffffffff810e4205>] __kmalloc+0x1a5/0x1d0
[2662122.262162]  [<ffffffff813ff95b>] __alloc_skb+0x6b/0x170
[2662122.262169]  [<ffffffff8100c98a>] ? sched_clock+0x1a/0x40
[2662122.262173]  [<ffffffff81453d10>] ? tcp_delack_timer+0x0/0x280
[2662122.262175]  [<ffffffff8145253e>] tcp_send_ack+0x2e/0x120
[2662122.262179]  [<ffffffff8105fa7d>] ? sched_clock_cpu+0xdd/0x120
[2662122.262182]  [<ffffffff81453e52>] tcp_delack_timer+0x142/0x280
[2662122.262186]  [<ffffffff8104ca42>] run_timer_softirq+0x1c2/0x3b0
[2662122.262190]  [<ffffffff81044145>] __do_softirq+0xd5/0x220
[2662122.262193]  [<ffffffff8100a82c>] call_softirq+0x1c/0x30
[2662122.262196]  [<ffffffff8100baa5>] do_softirq+0xb5/0xf0
[2662122.262198]  [<ffffffff81043b6d>] irq_exit+0x3d/0x50
[2662122.262202]  [<ffffffff813a1ba4>] evtchn_do_upcall+0x224/0x250
[2662122.262205]  [<ffffffff8100a29e>] do_hypervisor_callback+0x1e/0x30
[2662122.262207]  <EOI>  [<ffffffff8100c5f5>] ? xen_safe_halt+0x15/0x40
[2662122.262213]  [<ffffffff8100fe16>] ? xen_idle+0x36/0xa0
[2662122.262216]  [<ffffffff81007e85>] ? cpu_idle+0xb5/0x100
[2662122.262221]  [<ffffffff814a1c81>] ? rest_init+0x61/0x70
[2662122.262227]  [<ffffffff816cfcdf>] ? start_kernel+0x39f/0x3a8
[2662122.262230]  [<ffffffff816cf0e5>] ? x86_64_start_reservations+0xe5/0xe9
[2662122.262233]  [<ffffffff816cf125>] ? x86_64_start_kernel+0x3c/0x40
[2662122.262234] Mem-Info:
[2662122.262236] DMA per-cpu:
[2662122.262237] CPU    0: hi:    0, btch:   1 usd:   0
[2662122.262239] CPU    1: hi:    0, btch:   1 usd:   0
[2662122.262240] DMA32 per-cpu:
[2662122.262242] CPU    0: hi:  155, btch:  38 usd:  37
[2662122.262243] CPU    1: hi:  155, btch:  38 usd:   0
[2662122.262245] Normal per-cpu:
[2662122.262246] CPU    0: hi:  155, btch:  38 usd:  37
[2662122.262248] CPU    1: hi:  155, btch:  38 usd:   0
[2662122.262251] active_anon:1086598 inactive_anon:218376 isolated_anon:0
[2662122.262252]  active_file:268749 inactive_file:281482 isolated_file:128
[2662122.262253]  unevictable:0 dirty:72533 writeback:7885 unstable:0
[2662122.262254]  free:8618 slab_reclaimable:25337 slab_unreclaimable:4505
[2662122.262255]  mapped:3890 shmem:65 pagetables:0 bounce:0
[2662122.262260] DMA free:16384kB min:20kB low:24kB high:28kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:16160kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[2662122.262264] lowmem_reserve[]: 0 4024 7559 7559
[2662122.262272] DMA32 free:16252kB min:5916kB low:7392kB high:8872kB active_anon:1536152kB inactive_anon:310616kB active_file:961388kB inactive_file:1006672kB unevictable:0kB isolated(anon):0kB isolated(file):128kB present:4120800kB mlocked:0kB dirty:258652kB writeback:28508kB mapped:8692kB shmem:40kB slab_reclaimable:88816kB slab_unreclaimable:5820kB kernel_stack:936kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[2662122.262277] lowmem_reserve[]: 0 0 3534 3534
[2662122.262283] Normal free:1836kB min:5196kB low:6492kB high:7792kB active_anon:2810240kB inactive_anon:562888kB active_file:113608kB inactive_file:119256kB unevictable:0kB isolated(anon):0kB isolated(file):384kB present:3619728kB mlocked:0kB dirty:31480kB writeback:3032kB mapped:6868kB shmem:220kB slab_reclaimable:12532kB slab_unreclaimable:12200kB kernel_stack:1976kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[2662122.262287] lowmem_reserve[]: 0 0 0 0
[2662122.262289] DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 4*4096kB = 16384kB
[2662122.262296] DMA32: 2317*4kB 17*8kB 16*16kB 4*32kB 1*64kB 0*128kB 1*256kB 0*512kB 0*1024kB 1*2048kB 1*4096kB = 16252kB
[2662122.262302] Normal: 459*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1836kB
[2662122.262308] 550459 total pagecache pages
[2662122.262310] 0 pages in swap cache
[2662122.262311] Swap cache stats: add 0, delete 0, find 0/0
[2662122.262313] Free swap  = 0kB
[2662122.262314] Total swap = 0kB
[2662122.289198] 1968128 pages RAM
[2662122.289201] 61119 pages reserved
[2662122.289202] 523103 pages shared
[2662122.289203] 1380933 pages non-shared