在我将服务器上大约一百万个文件添加到 truecrypt 分区中的一个文件夹后，突然开始崩溃。
奇怪的是，它每天晚上 1 点左右都会这样做...检查了我的 cron，发现当时没有任何程序在运行。
以下是昨晚我的 kern.log 文件中的一些信息：
Dec 20 01:01:58 Lubuntu kernel: [142653.102582] lightdm-gtk-gre invoked oom-killer: gfp_mask=0x44d0, order=2, oom_adj=0, oom_score_adj=0
Dec 20 01:01:58 Lubuntu kernel: [142653.102588] lightdm-gtk-gre cpuset=/ mems_allowed=0
Dec 20 01:01:58 Lubuntu kernel: [142653.102591] Pid: 1786, comm: lightdm-gtk-gre Tainted: G O 3.5.0-17-generic #28-Ubuntu
Dec 20 01:01:58 Lubuntu kernel: [142653.102593] Call Trace:
Dec 20 01:01:58 Lubuntu kernel: [142653.102602] [<c15c01c4>] dump_header.isra.10+0x86/0x1b4
Dec 20 01:01:58 Lubuntu kernel: [142653.102607] [<c1104a1a>] oom_kill_process+0x23a/0x270
Dec 20 01:01:58 Lubuntu kernel: [142653.102611] [<c1104b3e>] ? select_bad_process.constprop.15+0xee/0x170
Dec 20 01:01:58 Lubuntu kernel: [142653.102614] [<c1104f53>] out_of_memory+0x163/0x1c0
Dec 20 01:01:58 Lubuntu kernel: [142653.102617] [<c1108abf>] __alloc_pages_nodemask+0x68f/0x750
Dec 20 01:01:58 Lubuntu kernel: [142653.102621] [<c1108bfc>] __get_free_pages+0x1c/0x40
Dec 20 01:01:58 Lubuntu kernel: [142653.102625] [<c113dd82>] kmalloc_order_trace+0x22/0x90
Dec 20 01:01:58 Lubuntu kernel: [142653.102628] [<c114008a>] __kmalloc_track_caller+0x14a/0x160
Dec 20 01:01:58 Lubuntu kernel: [142653.102631] [<c113df88>] ? kmem_cache_alloc+0xe8/0x120
Dec 20 01:01:58 Lubuntu kernel: [142653.102636] [<c14caf2f>] ? sock_alloc_send_pskb+0x17f/0x2b0
Dec 20 01:01:58 Lubuntu kernel: [142653.102639] [<c14cfb65>] __alloc_skb+0x55/0x200
Dec 20 01:01:58 Lubuntu kernel: [142653.102642] [<c14caf2f>] sock_alloc_send_pskb+0x17f/0x2b0
Dec 20 01:01:58 Lubuntu kernel: [142653.102645] [<c14cb07d>] sock_alloc_send_skb+0x1d/0x30
Dec 20 01:01:58 Lubuntu kernel: [142653.102649] [<c1556cb3>] unix_stream_sendmsg+0x2f3/0x3e0
Dec 20 01:01:58 Lubuntu kernel: [142653.102652] [<c14c74bf>] sock_aio_write+0xff/0x120
Dec 20 01:01:58 Lubuntu kernel: [142653.102655] [<c14c73c0>] ? sock_register+0x90/0x90
Dec 20 01:01:58 Lubuntu kernel: [142653.102659] [<c114f42c>] do_sync_readv_writev+0xac/0xe0
Dec 20 01:01:58 Lubuntu kernel: [142653.102664] [<c125d3f4>] ? security_file_permission+0x24/0xb0
Dec 20 01:01:58 Lubuntu kernel: [142653.102667] [<c114eba3>] ? rw_verify_area+0x63/0x110
Dec 20 01:01:58 Lubuntu kernel: [142653.102670] [<c114f6bf>] do_readv_writev+0x9f/0x190
Dec 20 01:01:58 Lubuntu kernel: [142653.102672] [<c14c73c0>] ? sock_register+0x90/0x90
Dec 20 01:01:58 Lubuntu kernel: [142653.102677] [<c10735a2>] ? check_preempt_curr+0x72/0x90
Dec 20 01:01:58 Lubuntu kernel: [142653.102680] [<c10735e8>] ? ttwu_do_wakeup+0x28/0x110
Dec 20 01:01:58 Lubuntu kernel: [142653.102683] [<c114f7e7>] vfs_writev+0x37/0x60
Dec 20 01:01:58 Lubuntu kernel: [142653.102685] [<c114f94d>] sys_writev+0x3d/0xa0
Dec 20 01:01:58 Lubuntu kernel: [142653.102689] [<c15cff5f>] sysenter_do_call+0x12/0x28
Dec 20 01:01:58 Lubuntu kernel: [142653.102692] [<c15c0000>] ? filter_check_discard.isra.15.part.16+0xb/0x25
Dec 20 01:01:58 Lubuntu kernel: [142653.102694] Mem-Info:
Dec 20 01:01:58 Lubuntu kernel: [142653.102696] DMA per-cpu:
Dec 20 01:01:58 Lubuntu kernel: [142653.102698] CPU 0: hi: 0, btch: 1 usd: 0
Dec 20 01:01:58 Lubuntu kernel: [142653.102699] CPU 1: hi: 0, btch: 1 usd: 0
Dec 20 01:01:58 Lubuntu kernel: [142653.102701] CPU 2: hi: 0, btch: 1 usd: 0
Dec 20 01:01:58 Lubuntu kernel: [142653.102702] CPU 3: hi: 0, btch: 1 usd: 0
Dec 20 01:01:58 Lubuntu kernel: [142653.102704] Normal per-cpu:
Dec 20 01:01:58 Lubuntu kernel: [142653.102705] CPU 0: hi: 186, btch: 31 usd: 0
Dec 20 01:01:58 Lubuntu kernel: [142653.102707] CPU 1: hi: 186, btch: 31 usd: 0
Dec 20 01:01:58 Lubuntu kernel: [142653.102709] CPU 2: hi: 186, btch: 31 usd: 0
Dec 20 01:01:58 Lubuntu kernel: [142653.102710] CPU 3: hi: 186, btch: 31 usd: 0
Dec 20 01:01:58 Lubuntu kernel: [142653.102711] HighMem per-cpu:
Dec 20 01:01:58 Lubuntu kernel: [142653.102713] CPU 0: hi: 186, btch: 31 usd: 17
Dec 20 01:01:58 Lubuntu kernel: [142653.102715] CPU 1: hi: 186, btch: 31 usd: 19
Dec 20 01:01:58 Lubuntu kernel: [142653.102717] CPU 2: hi: 186, btch: 31 usd: 0
Dec 20 01:01:58 Lubuntu kernel: [142653.102718] CPU 3: hi: 186, btch: 31 usd: 19
Dec 20 01:01:58 Lubuntu kernel: [142653.102722] active_anon:109650 inactive_anon:110327 isolated_anon:0
Dec 20 01:01:58 Lubuntu kernel: [142653.102722] active_file:317770 inactive_file:89531 isolated_file:0
Dec 20 01:01:58 Lubuntu kernel: [142653.102722] unevictable:7798 dirty:0 writeback:0 unstable:0
Dec 20 01:01:58 Lubuntu kernel: [142653.102722] free:177821 slab_reclaimable:182861 slab_unreclaimable:6900
Dec 20 01:01:58 Lubuntu kernel: [142653.102722] mapped:565603 shmem:5873 pagetables:3184 bounce:56
Dec 20 01:01:58 Lubuntu kernel: [142653.102729] DMA free:4232kB min:784kB low:980kB high:1176kB active_anon:0kB inactive_anon:0kB active_file:432kB inactive_file:412kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15800kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:10548kB slab_unreclaimable:80kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:76kB writeback_tmp:0kB pages_scanned:3741 all_unreclaimable? yes
Dec 20 01:01:58 Lubuntu kernel: [142653.102731] lowmem_reserve[]: 0 869 6072 6072
Dec 20 01:01:58 Lubuntu kernel: [142653.102739] Normal free:44208kB min:44216kB low:55268kB high:66324kB active_anon:0kB inactive_anon:0kB active_file:4152kB inactive_file:3972kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:890008kB mlocked:0kB dirty:0kB writeback:0kB mapped:4880kB shmem:0kB slab_reclaimable:720896kB slab_unreclaimable:27520kB kernel_stack:3416kB pagetables:756kB unstable:0kB bounce:148kB writeback_tmp:0kB pages_scanned:25082 all_unreclaimable? yes
Dec 20 01:01:58 Lubuntu kernel: [142653.102741] lowmem_reserve[]: 0 0 41626 41626
Dec 20 01:01:58 Lubuntu kernel: [142653.102748] HighMem free:662844kB min:512kB low:66692kB high:132872kB active_anon:438600kB inactive_anon:441308kB active_file:1266496kB inactive_file:353740kB unevictable:31192kB isolated(anon):0kB isolated(file):0kB present:5328224kB mlocked:31192kB dirty:0kB writeback:0kB mapped:2257532kB shmem:23492kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:11980kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
Dec 20 01:01:58 Lubuntu kernel: [142653.102750] lowmem_reserve[]: 0 0 0 0
Dec 20 01:01:58 Lubuntu kernel: [142653.102754] DMA: 41*4kB 29*8kB 77*16kB 51*32kB 6*64kB 1*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 4284kB
Dec 20 01:01:58 Lubuntu kernel: [142653.102763] Normal: 1764*4kB 1524*8kB 1029*16kB 79*32kB 0*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 1*4096kB = 44256kB
Dec 20 01:01:58 Lubuntu kernel: [142653.102773] HighMem: 4662*4kB 1936*8kB 842*16kB 5637*32kB 3319*64kB 916*128kB 149*256kB 21*512kB 1*1024kB 1*2048kB 13*4096kB = 662872kB
Dec 20 01:01:58 Lubuntu kernel: [142653.102787] 415373 total pagecache pages
Dec 20 01:01:58 Lubuntu kernel: [142653.102789] 722 pages in swap cache
Dec 20 01:01:58 Lubuntu kernel: [142653.102790] Swap cache stats: add 5238, delete 4516, find 3096/3220
Dec 20 01:01:58 Lubuntu kernel: [142653.102792] Free swap = 1937052kB
Dec 20 01:01:58 Lubuntu kernel: [142653.102793] Total swap = 1953120kB
Dec 20 01:01:58 Lubuntu kernel: [142653.121617] 1703920 pages RAM
Dec 20 01:01:58 Lubuntu kernel: [142653.121622] 1475586 pages HighMem
Dec 20 01:01:58 Lubuntu kernel: [142653.121623] 693511 pages reserved
Dec 20 01:01:58 Lubuntu kernel: [142653.121624] 367083 pages shared
Dec 20 01:01:58 Lubuntu kernel: [142653.121625] 555463 pages non-shared
Dec 20 01:01:58 Lubuntu kernel: [142653.121627] [ pid ] uid tgid total_vm rss cpu oom_adj oom_score_adj name
Dec 20 01:01:58 Lubuntu kernel: [142653.121638] [ 403] 0 403 705 148 3 0 0 upstart-udev-br
Dec 20 01:01:58 Lubuntu kernel: [142653.121642] [ 436] 0 436 843 412 0 -17 -1000 udevd
Dec 20 01:01:58 Lubuntu kernel: [142653.121645] [ 573] 0 573 842 323 2 -17 -1000 udevd
Dec 20 01:01:58 Lubuntu kernel: [142653.121648] [ 574] 0 574 844 321 2 -17 -1000 udevd
Dec 20 01:01:58 Lubuntu kernel: [142653.121651] [ 774] 0 774 704 149 1 0 0 upstart-socket-
Dec 20 01:01:58 Lubuntu kernel: [142653.121654] [ 866] 0 866 1176 240 2 0 0 vsftpd
Dec 20 01:01:58 Lubuntu kernel: [142653.121657] [ 975] 0 975 5740 996 2 0 0 smbd
Dec 20 01:01:58 Lubuntu kernel: [142653.121660] [ 978] 0 978 1673 602 3 -17 -1000 sshd
Dec 20 01:01:58 Lubuntu kernel: [142653.121663] [ 980] 102 980 979 434 2 0 0 dbus-daemon
Dec 20 01:01:58 Lubuntu kernel: [142653.121666] [ 989] 0 989 3325 439 1 0 0 nmbd
Dec 20 01:01:58 Lubuntu kernel: [142653.121669] [ 1001] 0 1001 5864 334 3 0 0 smbd
Dec 20 01:01:58 Lubuntu kernel: [142653.121672] [ 1052] 0 1052 1854 639 1 0 0 modem-manager
Dec 20 01:01:58 Lubuntu kernel: [142653.121675] [ 1057] 0 1057 1195 337 2 0 0 bluetoothd
Dec 20 01:01:58 Lubuntu kernel: [142653.121678] [ 1067] 0 1067 6299 1327 2 0 0 NetworkManager
Dec 20 01:01:58 Lubuntu kernel: [142653.121682] [ 1081] 101 1081 7768 329 0 0 0 rsyslogd
Dec 20 01:01:58 Lubuntu kernel: [142653.121685] [ 1092] 108 1092 895 425 3 0 0 avahi-daemon
Dec 20 01:01:58 Lubuntu kernel: [142653.121688] [ 1097] 108 1097 862 106 0 0 0 avahi-daemon
Dec 20 01:01:58 Lubuntu kernel: [142653.121690] [ 1124] 0 1124 4229 847 3 0 0 cupsd
Dec 20 01:01:58 Lubuntu kernel: [142653.121694] [ 1146] 0 1146 6363 995 2 0 0 polkitd
Dec 20 01:01:58 Lubuntu kernel: [142653.121696] [ 1208] 0 1208 1158 211 1 0 0 getty
Dec 20 01:01:58 Lubuntu kernel: [142653.121699] [ 1214] 0 1214 1158 208 1 0 0 getty
Dec 20 01:01:58 Lubuntu kernel: [142653.121702] [ 1220] 0 1220 1158 211 1 0 0 getty
Dec 20 01:01:58 Lubuntu kernel: [142653.121705] [ 1221] 0 1221 1158 210 1 0 0 getty
Dec 20 01:01:58 Lubuntu kernel: [142653.121708] [ 1224] 0 1224 1158 211 1 0 0 getty
Dec 20 01:01:58 Lubuntu kernel: [142653.121711] [ 1241] 0 1241 544 163 1 0 0 acpid
Dec 20 01:01:58 Lubuntu kernel: [142653.121714] [ 1242] 0 1242 8529 7790 3 0 0 lightdm
Dec 20 01:01:58 Lubuntu kernel: [142653.121717] [ 1252] 0 1252 955 160 3 0 0 irqbalance
Dec 20 01:01:58 Lubuntu kernel: [142653.121720] [ 1261] 0 1261 655 228 3 0 0 cron
Dec 20 01:01:58 Lubuntu kernel: [142653.121723] [ 1262] 0 1262 619 31 1 0 0 atd
Dec 20 01:01:58 Lubuntu kernel: [142653.121725] [ 1265] 107 1265 6483 1119 1 0 0 whoopsie
Dec 20 01:01:58 Lubuntu kernel: [142653.121729] [ 1277] 116 1277 80506 40846 1 0 0 mysqld
Dec 20 01:01:58 Lubuntu kernel: [142653.121731] [ 1327] 103 1327 8876 1018 3 0 0 colord
Dec 20 01:01:58 Lubuntu kernel: [142653.121735] [ 1392] 0 1392 25298 3293 1 0 0 Xorg
Dec 20 01:01:58 Lubuntu kernel: [142653.121738] [ 1608] 117 1608 1938 252 0 0 0 exim4
Dec 20 01:01:58 Lubuntu kernel: [142653.121740] [ 1670] 0 1670 5870 1056 1 0 0 lightdm
Dec 20 01:01:58 Lubuntu kernel: [142653.121743] [ 1673] 0 1673 6183 782 0 0 0 accounts-daemon
Dec 20 01:01:58 Lubuntu kernel: [142653.121746] [ 1693] 0 1693 8603 889 0 0 0 console-kit-dae
Dec 20 01:01:58 Lubuntu kernel: [142653.121749] [ 1780] 105 1780 558 137 3 0 0 lightdm-greeter
Dec 20 01:01:58 Lubuntu kernel: [142653.121752] [ 1785] 105 1785 845 254 2 0 0 dbus-daemon
Dec 20 01:01:58 Lubuntu kernel: [142653.121755] [ 1786] 105 1786 27032 3122 2 0 0 lightdm-gtk-gre
Dec 20 01:01:58 Lubuntu kernel: [142653.121758] [ 1788] 105 1788 11091 737 1 0 0 at-spi-bus-laun
Dec 20 01:01:58 Lubuntu kernel: [142653.121761] [ 1792] 105 1792 812 357 1 0 0 dbus-daemon
Dec 20 01:01:58 Lubuntu kernel: [142653.121764] [ 1795] 105 1795 4272 749 3 0 0 at-spi2-registr
Dec 20 01:01:58 Lubuntu kernel: [142653.121767] [ 1804] 105 1804 6687 656 2 0 0 gvfsd
Dec 20 01:01:58 Lubuntu kernel: [142653.121770] [ 1808] 105 1808 10691 748 2 0 0 gvfsd-fuse
Dec 20 01:01:58 Lubuntu kernel: [142653.121773] [ 1816] 0 1816 7163 926 0 0 0 upowerd
Dec 20 01:01:58 Lubuntu kernel: [142653.121775] [ 1976] 0 1976 640 237 1 0 0 hddtemp
Dec 20 01:01:58 Lubuntu kernel: [142653.121779] [ 2188] 0 2188 10280 1878 2 0 0 apache2
Dec 20 01:01:58 Lubuntu kernel: [142653.121782] [ 2226] 33 2226 10340 1319 0 0 0 apache2
Dec 20 01:01:58 Lubuntu kernel: [142653.121784] [ 2227] 33 2227 10340 1335 1 0 0 apache2
Dec 20 01:01:58 Lubuntu kernel: [142653.121787] [ 2228] 33 2228 10296 1301 3 0 0 apache2
Dec 20 01:01:58 Lubuntu kernel: [142653.121790] [ 2229] 33 2229 10296 1301 1 0 0 apache2
Dec 20 01:01:58 Lubuntu kernel: [142653.121793] [ 2230] 33 2230 10340 1323 2 0 0 apache2
Dec 20 01:01:58 Lubuntu kernel: [142653.121796] [ 2275] 0 2275 1158 209 2 0 0 getty
Dec 20 01:01:58 Lubuntu kernel: [142653.121799] [ 2562] 106 2562 1439 505 3 0 0 ntpd
Dec 20 01:01:58 Lubuntu kernel: [142653.121802] [ 2567] 0 2567 3533 781 1 0 0 lightdm
Dec 20 01:01:58 Lubuntu kernel: [142653.121804] [ 2572] 33 2572 10340 1329 0 0 0 apache2
Dec 20 01:01:58 Lubuntu kernel: [142653.121807] [ 2573] 33 2573 10340 1320 0 0 0 apache2
Dec 20 01:01:58 Lubuntu kernel: [142653.121810] [ 2574] 33 2574 10340 1319 0 0 0 apache2
Dec 20 01:01:58 Lubuntu kernel: [142653.121813] [ 2832] 113 2832 1675 730 1 0 0 nxssh
Dec 20 01:01:58 Lubuntu kernel: [142653.121816] [ 2833] 0 2833 4257 1087 0 0 0 sshd
Dec 20 01:01:58 Lubuntu kernel: [142653.121819] [ 2934] 1000 2934 4257 457 1 0 0 sshd
Dec 20 01:01:58 Lubuntu kernel: [142653.121822] [ 2935] 1000 2935 3734 3226 1 0 0 nxnode
Dec 20 01:01:58 Lubuntu kernel: [142653.121825] [ 2959] 1000 2959 36002 26402 2 0 0 nxagent
Dec 20 01:01:58 Lubuntu kernel: [142653.121828] [ 2961] 113 2961 5200 2747 3 0 0 nxserver
Dec 20 01:01:58 Lubuntu kernel: [142653.121831] [ 2964] 1000 2964 3767 2017 1 0 0 nxnode
Dec 20 01:01:58 Lubuntu kernel: [142653.121833] [ 2974] 1000 2974 12069 1414 1 0 0 lxsession
Dec 20 01:01:58 Lubuntu kernel: [142653.121836] [ 2977] 1000 2977 4482 1937 0 0 0 openbox
Dec 20 01:01:58 Lubuntu kernel: [142653.121839] [ 2982] 1000 2982 48577 3282 0 0 0 lxpanel
Dec 20 01:01:58 Lubuntu kernel: [142653.121842] [ 2983] 1000 2983 1875 592 0 0 0 xscreensaver
Dec 20 01:01:58 Lubuntu kernel: [142653.121845] [ 2985] 1000 2985 31394 3145 2 0 0 pcmanfm
Dec 20 01:01:58 Lubuntu kernel: [142653.121848] [ 2986] 1000 2986 7310 1356 2 0 0 polkit-gnome-au
Dec 20 01:01:58 Lubuntu kernel: [142653.121850] [ 2990] 1000 2990 961 139 2 0 0 dbus-launch
Dec 20 01:01:58 Lubuntu kernel: [142653.121854] [ 2991] 1000 2991 938 308 2 0 0 dbus-daemon
Dec 20 01:01:58 Lubuntu kernel: [142653.121856] [ 2993] 1000 2993 11092 736 2 0 0 at-spi-bus-laun
Dec 20 01:01:58 Lubuntu kernel: [142653.121859] [ 2994] 1000 2994 7349 1041 0 0 0 xfce4-power-man
Dec 20 01:01:58 Lubuntu kernel: [142653.121862] [ 3001] 1000 3001 12608 2707 1 0 0 update-notifier
Dec 20 01:01:58 Lubuntu kernel: [142653.121865] [ 3005] 1000 3005 812 357 1 0 0 dbus-daemon
Dec 20 01:01:58 Lubuntu kernel: [142653.121868] [ 3011] 1000 3011 50324 3472 2 0 0 nm-applet
Dec 20 01:01:58 Lubuntu kernel: [142653.121870] [ 3016] 1000 3016 4273 763 0 0 0 at-spi2-registr
Dec 20 01:01:58 Lubuntu kernel: [142653.121873] [ 3019] 1000 3019 1627 597 2 0 0 xfconfd
Dec 20 01:01:58 Lubuntu kernel: [142653.121876] [ 3031] 1000 3031 1487 456 3 0 0 menu-cached
Dec 20 01:01:58 Lubuntu kernel: [142653.121880] [ 3042] 1000 3042 2204 579 0 0 0 gconfd-2
Dec 20 01:01:58 Lubuntu kernel: [142653.121882] [ 3046] 1000 3046 22131 893 3 0 0 pulseaudio
Dec 20 01:01:58 Lubuntu kernel: [142653.121886] [ 3048] 115 3048 5334 315 1 0 0 rtkit-daemon
Dec 20 01:01:58 Lubuntu kernel: [142653.121888] [ 3069] 1000 3069 11507 1082 2 0 0 indicator-appli
Dec 20 01:01:58 Lubuntu kernel: [142653.121891] [ 3274] 1000 3274 8400 613 0 0 0 dconf-service
Dec 20 01:01:58 Lubuntu kernel: [142653.121894] [ 3305] 1000 3305 4970 1243 3 0 0 VBoxXPCOMIPCD
Dec 20 01:01:58 Lubuntu kernel: [142653.121897] [ 3310] 1000 3310 10332 2611 1 0 0 VBoxSVC
Dec 20 01:01:58 Lubuntu kernel: [142653.121900] [ 3356] 1000 3356 34122 4071 3 0 0 truecrypt
Dec 20 01:01:58 Lubuntu kernel: [142653.121903] [ 3357] 1000 3357 8258 520 1 0 0 truecrypt
Dec 20 01:01:58 Lubuntu kernel: [142653.121905] [ 3373] 0 3373 6216 715 3 0 0 truecrypt
Dec 20 01:01:58 Lubuntu kernel: [142653.121908] [ 3377] 0 3377 6216 332 3 0 0 truecrypt
Dec 20 01:01:58 Lubuntu kernel: [142653.121911] [ 3379] 0 3379 40907 465 3 0 0 truecrypt
Dec 20 01:01:58 Lubuntu kernel: [142653.121915] [ 3419] 0 3419 6216 334 3 0 0 truecrypt
Dec 20 01:01:58 Lubuntu kernel: [142653.121918] [ 3421] 0 3421 39029 496 2 0 0 truecrypt
Dec 20 01:01:58 Lubuntu kernel: [142653.121922] [ 3444] 1000 3444 331341 284523 3 0 0 VirtualBox
Dec 20 01:01:58 Lubuntu kernel: [142653.121924] [ 3991] 1000 3991 345903 282194 1 0 0 VirtualBox
Dec 20 01:01:58 Lubuntu kernel: [142653.121927] [ 4395] 0 4395 17967 1184 2 0 0 udisksd
Dec 20 01:01:58 Lubuntu kernel: [142653.121930] [ 4872] 33 4872 10296 1302 2 0 0 apache2
Dec 20 01:01:58 Lubuntu kernel: [142653.121933] [ 5576] 0 5576 5964 1019 2 0 0 smbd
Dec 20 01:01:58 Lubuntu kernel: [142653.121936] [ 5646] 0 5646 4272 1113 0 0 0 sshd
Dec 20 01:01:58 Lubuntu kernel: [142653.121939] [ 5826] 113 5826 4309 491 2 0 0 sshd
Dec 20 01:01:58 Lubuntu kernel: [142653.121942] [ 5827] 113 5827 5169 4672 2 0 0 nxserver
Dec 20 01:01:58 Lubuntu kernel: [142653.121944] [ 6057] 113 6057 1675 567 0 0 0 nxssh
Dec 20 01:01:58 Lubuntu kernel: [142653.121947] [ 6139] 33 6139 10340 1299 0 0 0 apache2
Dec 20 01:01:58 Lubuntu kernel: [142653.121950] [ 6162] 1000 6162 1303 299 0 0 0 su-to-root
Dec 20 01:01:58 Lubuntu kernel: [142653.121953] [ 6168] 1000 6168 24381 2066 0 0 0 gksu
Dec 20 01:01:58 Lubuntu kernel: [142653.121956] [ 6175] 0 6175 961 85 1 0 0 dbus-launch
Dec 20 01:01:58 Lubuntu kernel: [142653.121958] [ 6176] 0 6176 842 169 2 0 0 dbus-daemon
Dec 20 01:01:58 Lubuntu kernel: [142653.121961] [ 6185] 0 6185 14470 1015 0 0 0 kdeinit4
Dec 20 01:01:58 Lubuntu kernel: [142653.121964] [ 6186] 0 6186 16613 1439 0 0 0 klauncher
Dec 20 01:01:58 Lubuntu kernel: [142653.121967] [ 6189] 0 6189 18512 1834 0 0 0 kded4
Dec 20 01:01:58 Lubuntu kernel: [142653.121970] [ 6197] 0 6197 6351 837 3 0 0 udisks-daemon
Dec 20 01:01:58 Lubuntu kernel: [142653.121973] [ 6198] 0 6198 1655 108 2 0 0 udisks-daemon
Dec 20 01:01:58 Lubuntu kernel: [142653.121976] [ 6213] 0 6213 22899 1784 2 0 0 kactivitymanage
Dec 20 01:01:58 Lubuntu kernel: [142653.121979] [ 6262] 1000 6262 26641 2961 0 0 0 lxterminal
Dec 20 01:01:58 Lubuntu kernel: [142653.121981] [ 6263] 1000 6263 601 182 1 0 0 gnome-pty-helpe
Dec 20 01:01:58 Lubuntu kernel: [142653.121984] [ 6264] 1000 6264 1558 664 2 0 0 bash
Dec 20 01:01:58 Lubuntu kernel: [142653.121987] [ 7259] 0 7259 5957 972 2 0 0 smbd
Dec 20 01:01:58 Lubuntu kernel: [142653.121990] [24575] 0 24575 5954 1194 3 0 0 smbd
Dec 20 01:01:58 Lubuntu kernel: [142653.121993] [24843] 0 24843 5991 1142 2 0 0 smbd
Dec 20 01:01:58 Lubuntu kernel: [142653.121996] [25240] 0 25240 18206 2749 0 0 0 kuiserver
Dec 20 01:01:58 Lubuntu kernel: [142653.122000] [27635] 0 27635 2684 597 3 0 0 cron
Dec 20 01:01:58 Lubuntu kernel: [142653.122003] [27636] 0 27636 558 137 3 0 0 sh
Dec 20 01:01:58 Lubuntu kernel: [142653.122006] [27637] 0 27637 558 136 0 0 0 backintime
Dec 20 01:01:58 Lubuntu kernel: [142653.122009] [27638] 0 27638 114984 113351 1 0 0 python
Dec 20 01:01:58 Lubuntu kernel: [142653.122014] [ 3194] 0 3194 558 137 0 0 0 sh
Dec 20 01:01:58 Lubuntu kernel: [142653.122017] [ 3195] 0 3195 1244 324 0 0 0 chmod
Dec 20 01:01:58 Lubuntu kernel: [142653.122019] Out of memory: Kill process 3444 (VirtualBox) score 139 or sacrifice child
Dec 20 01:01:58 Lubuntu kernel: [142653.122025] Killed process 3444 (VirtualBox) total-vm:1325364kB, anon-rss:19736kB, file-rss:1118356kB
这种情况一直持续，服务器完全冻结。它运行的是 Lubuntu 12.10 32 位
答案1
OOM 日志显示它在遇到内存不足情况时发现哪些进程正在运行，以及它尝试终止哪些进程。请参阅以以下标题开头的表格：
[ pid ] uid tgid total_vm rss cpu oom_adj oom_score_adj name
total_vm 是显示进程的总映射内存（RAM + Swap）的列 - 我注意到大进程是 VirtualBox（x2）和 python（pid == 27638）。
我假设您了解 VirtualBox，但有必要找出那个 python 进程是什么。可能是脚本出了问题？监控添加文件的东西？某种查找新文件的媒体扫描器（例如 plex、rygel 或类似服务器？）还是您的备份管理器？
跟踪内存使用情况的最简单方法（但严格来说是在线/交互的）是使用top并按内存排序（按 M - 大写 M，即 shift-M）。第一个内存行还会告诉您操作系统认为您有多少物理 RAM“Mem:”，如果您认为由于 32 位问题而缺少一些 RAM，这将非常有用。
您可以编写某种监控脚本，尽管我暂时还不知道有什么好办法。首先，我有：
top -n 1 -b | sed '1,/^$/d' | sort -r -n -k10
这将转储顶部输出，修剪标题直到空白行（从 1 到“^$”），然后按第 10 列（对我来说是内存百分比）以反向数字顺序对输出进行排序。定期运行该程序并将其转储到文件可能会有所帮助。