大きなデータファイルを処理するAmazonEC2UbuntuインスタンスでPythonプロセスを実行しています。最初はすべてが順調に進んでおり、RAMまたはCPU使用率の継続的な増加には気づいていません。次に、入力データの一部を処理した後、プロセスはメモリを使い果たして終了します。dmesg -T次のように生成されますが、何も教えてくれません。
[Thu Jan 3 17:47:27 2013] python invoked oom-killer: gfp_mask=0x280da, order=0, oom_adj=0, oom_score_adj=0
[Thu Jan 3 17:47:27 2013] python cpuset=/ mems_allowed=0
[Thu Jan 3 17:47:27 2013] Pid: 1108, comm: python Not tainted 3.2.0-25-virtual #40-Ubuntu
[Thu Jan 3 17:47:27 2013] Call Trace:
[Thu Jan 3 17:47:27 2013] [<ffffffff810bdb9d>] ? cpuset_print_task_mems_allowed+0x9d/0xb0
[Thu Jan 3 17:47:27 2013] [<ffffffff81118231>] dump_header+0x91/0xe0
[Thu Jan 3 17:47:27 2013] [<ffffffff811185b5>] oom_kill_process+0x85/0xb0
[Thu Jan 3 17:47:27 2013] [<ffffffff8111895a>] out_of_memory+0xfa/0x220
[Thu Jan 3 17:47:27 2013] [<ffffffff8111e38a>] __alloc_pages_nodemask+0x7ea/0x800
[Thu Jan 3 17:47:27 2013] [<ffffffff810063dd>] ? pte_mfn_to_pfn+0x8d/0x110
[Thu Jan 3 17:47:27 2013] [<ffffffff811569fa>] alloc_pages_vma+0x9a/0x150
[Thu Jan 3 17:47:27 2013] [<ffffffff8113705c>] do_anonymous_page.isra.38+0x7c/0x2f0
[Thu Jan 3 17:47:27 2013] [<ffffffff8113acc1>] handle_pte_fault+0x1e1/0x200
[Thu Jan 3 17:47:27 2013] [<ffffffff8100647e>] ? xen_pmd_val+0xe/0x10
[Thu Jan 3 17:47:27 2013] [<ffffffff810052d9>] ? __raw_callee_save_xen_pmd_val+0x11/0x1e
[Thu Jan 3 17:47:27 2013] [<ffffffff8113b098>] handle_mm_fault+0x1f8/0x350
[Thu Jan 3 17:47:27 2013] [<ffffffff81659f9b>] do_page_fault+0x14b/0x520
[Thu Jan 3 17:47:27 2013] [<ffffffff811425fd>] ? mprotect_fixup+0x17d/0x2b0
[Thu Jan 3 17:47:27 2013] [<ffffffff81142920>] ? sys_mprotect+0x1f0/0x250
[Thu Jan 3 17:47:27 2013] [<ffffffff81656bf5>] page_fault+0x25/0x30
[Thu Jan 3 17:47:27 2013] Mem-Info:
[Thu Jan 3 17:47:27 2013] Node 0 DMA per-cpu:
[Thu Jan 3 17:47:27 2013] CPU 0: hi: 0, btch: 1 usd: 0
[Thu Jan 3 17:47:27 2013] Node 0 DMA32 per-cpu:
[Thu Jan 3 17:47:27 2013] CPU 0: hi: 186, btch: 31 usd: 0
[Thu Jan 3 17:47:27 2013] active_anon:142435 inactive_anon:14 isolated_anon:0
[Thu Jan 3 17:47:27 2013] active_file:0 inactive_file:11 isolated_file:0
[Thu Jan 3 17:47:27 2013] unevictable:0 dirty:0 writeback:0 unstable:0
[Thu Jan 3 17:47:27 2013] free:1389 slab_reclaimable:1528 slab_unreclaimable:1686
[Thu Jan 3 17:47:27 2013] mapped:2 shmem:45 pagetables:793 bounce:0
[Thu Jan 3 17:47:27 2013] Node 0 DMA free:2460kB min:72kB low:88kB high:108kB active_anon:12296kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:14524kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:8kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:16kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
[Thu Jan 3 17:47:27 2013] lowmem_reserve[]: 0 597 597 597
[Thu Jan 3 17:47:27 2013] Node 0 DMA32 free:3096kB min:3088kB low:3860kB high:4632kB active_anon:557444kB inactive_anon:56kB active_file:0kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:611856kB mlocked:0kB dirty:0kB writeback:0kB mapped:8kB shmem:180kB slab_reclaimable:6104kB slab_unreclaimable:6744kB kernel_stack:1024kB pagetables:3156kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:27445 all_unreclaimable? yes
[Thu Jan 3 17:47:27 2013] lowmem_reserve[]: 0 0 0 0
[Thu Jan 3 17:47:27 2013] Node 0 DMA: 1*4kB 2*8kB 1*16kB 0*32kB 0*64kB 1*128kB 1*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 2468kB
[Thu Jan 3 17:47:27 2013] Node 0 DMA32: 151*4kB 10*8kB 23*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 3100kB
[Thu Jan 3 17:47:27 2013] 55 total pagecache pages
[Thu Jan 3 17:47:27 2013] 0 pages in swap cache
[Thu Jan 3 17:47:27 2013] Swap cache stats: add 0, delete 0, find 0/0
[Thu Jan 3 17:47:27 2013] Free swap = 0kB
[Thu Jan 3 17:47:27 2013] Total swap = 0kB
[Thu Jan 3 17:47:27 2013] 159472 pages RAM
[Thu Jan 3 17:47:27 2013] 8383 pages reserved
[Thu Jan 3 17:47:27 2013] 261 pages shared
[Thu Jan 3 17:47:27 2013] 149349 pages non-shared
[Thu Jan 3 17:47:27 2013] [ pid ] uid tgid total_vm rss cpu oom_adj oom_score_adj name
[Thu Jan 3 17:47:27 2013] [ 238] 0 238 4306 47 0 0 0 upstart-udev-br
[Thu Jan 3 17:47:27 2013] [ 242] 0 242 5396 119 0 -17 -1000 udevd
[Thu Jan 3 17:47:27 2013] [ 287] 0 287 5362 99 0 -17 -1000 udevd
[Thu Jan 3 17:47:27 2013] [ 288] 0 288 5362 99 0 -17 -1000 udevd
[Thu Jan 3 17:47:27 2013] [ 361] 0 361 3795 48 0 0 0 upstart-socket-
[Thu Jan 3 17:47:27 2013] [ 419] 0 419 1814 123 0 0 0 dhclient3
[Thu Jan 3 17:47:27 2013] [ 643] 0 643 12487 151 0 -17 -1000 sshd
[Thu Jan 3 17:47:27 2013] [ 657] 101 657 63427 102 0 0 0 rsyslogd
[Thu Jan 3 17:47:27 2013] [ 663] 102 663 5981 89 0 0 0 dbus-daemon
[Thu Jan 3 17:47:27 2013] [ 725] 0 725 3624 42 0 0 0 getty
[Thu Jan 3 17:47:27 2013] [ 732] 0 732 3624 41 0 0 0 getty
[Thu Jan 3 17:47:27 2013] [ 741] 0 741 3624 42 0 0 0 getty
[Thu Jan 3 17:47:27 2013] [ 743] 0 743 3624 41 0 0 0 getty
[Thu Jan 3 17:47:27 2013] [ 747] 0 747 3624 41 0 0 0 getty
[Thu Jan 3 17:47:27 2013] [ 755] 0 755 1080 37 0 0 0 acpid
[Thu Jan 3 17:47:27 2013] [ 756] 0 756 4776 50 0 0 0 cron
[Thu Jan 3 17:47:27 2013] [ 757] 0 757 4225 39 0 0 0 atd
[Thu Jan 3 17:47:27 2013] [ 787] 0 787 3624 41 0 0 0 getty
[Thu Jan 3 17:47:27 2013] [ 790] 103 790 46895 300 0 0 0 whoopsie
[Thu Jan 3 17:47:27 2013] [ 797] 0 797 20467 216 0 0 0 sshd
[Thu Jan 3 17:47:27 2013] [ 800] 0 800 146074 260 0 0 0 console-kit-dae
[Thu Jan 3 17:47:27 2013] [ 867] 0 867 46645 154 0 0 0 polkitd
[Thu Jan 3 17:47:27 2013] [ 983] 1000 983 20467 213 0 0 0 sshd
[Thu Jan 3 17:47:27 2013] [ 984] 1000 984 6557 1766 0 0 0 bash
[Thu Jan 3 17:47:27 2013] [ 1108] 1000 1108 163815 138085 0 0 0 python
[Thu Jan 3 17:47:27 2013] Out of memory: Kill process 1108 (python) score 915 or sacrifice child
[Thu Jan 3 17:47:27 2013] Killed process 1108 (python) total-vm:655260kB, anon-rss:552336kB, file-rss:4kB
プロセスのプロファイルを作成して、何が起こっているのか、何がRAM使用量の突然の急増を引き起こしているのかを把握する方法はありますか？どうも