¿Por qué el kernel de Linux elimina los procesos cuando tiene 14GB de memoria libre y cómo solucionarlo?

8

La salida de freemostró que mis aplicaciones solo usan 2GB, el intercambio no se usó en absoluto. Sin embargo, mis aplicaciones estaban siendo eliminadas (Skype, Firefox, Thunderbird). Lo vi htopy parecía que asignaron pocos megabytes y fueron asesinados. Tuve que reiniciar para "solucionar" el problema.

Mi pregunta es ¿por qué y, lo que es más importante, cómo solucionarlo cuando esto sucede nuevamente (es decir, aparte de reiniciar)? (EDITAR3)

Fue muy molesto, perdí una publicación bastante larga (Firefox fue asesinado sin previo aviso) y otras cosas. ¿Es normal en Linux, matar aplicaciones b / c OOM en un 80% de memoria libre y sin ningún intento de utilizar el intercambio?

EDITAR: La distribución es Kubuntu 16.04.

EDIT2: Log (fragmento pequeño, b / c del límite de longitud de la publicación):

[ 2687.946164] Xorg invoked oom-killer: gfp_mask=0x24040c0, order=3, oom_score_adj=0
[ 2687.946167] Xorg cpuset=/ mems_allowed=0
[ 2687.946171] CPU: 3 PID: 2109 Comm: Xorg Tainted: P           OE   4.4.0-59-generic #80-Ubuntu
[ 2687.946172] Hardware name: MSI MS-7850/B85-G41 PC Mate(MS-7850), BIOS V2.9 03/30/2015
[ 2687.946174]  0000000000000286 00000000828bbbc2 ffff880409ad38d8 ffffffff813f7583
[ 2687.946176]  ffff880409ad3ab0 ffff880392c09c00 ffff880409ad3948 ffffffff8120ad5e
[ 2687.946177]  0000000000000015 0000000000000000 ffff8802e4f47180 ffff8800033c2a00
[ 2687.946179] Call Trace:
...
[ 2687.946394] Mem-Info:
[ 2687.946396] active_anon:720752 inactive_anon:279235 isolated_anon:0
[ 2687.946396]  active_file:729283 inactive_file:2048755 isolated_file:0
[ 2687.946396]  unevictable:24 dirty:34175 writeback:29190 unstable:0
[ 2687.946396]  slab_reclaimable:107795 slab_unreclaimable:37549
[ 2687.946396]  mapped:269800 shmem:51809 pagetables:15581 bounce:0
[ 2687.946396]  free:38642 free_pcp:46 free_cma:0
[ 2687.946398] Node 0 DMA free:15900kB min:64kB low:80kB high:96kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15984kB managed:15900kB 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 free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
[ 2687.946401] lowmem_reserve[]: 0 3401 15912 15912 15912
[ 2687.946403] Node 0 DMA32 free:69016kB min:14432kB low:18040kB high:21648kB active_anon:393040kB inactive_anon:463048kB active_file:635316kB inactive_file:1758444kB unevictable:80kB isolated(anon):0kB isolated(file):0kB present:3613072kB managed:3532452kB mlocked:80kB dirty:26300kB writeback:23864kB mapped:226516kB shmem:47828kB slab_reclaimable:91324kB slab_unreclaimable:56464kB kernel_stack:2704kB pagetables:13724kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[ 2687.946406] lowmem_reserve[]: 0 0 12510 12510 12510
[ 2687.946408] Node 0 Normal free:69652kB min:53084kB low:66352kB high:79624kB active_anon:2489968kB inactive_anon:653892kB active_file:2281816kB inactive_file:6436576kB unevictable:16kB isolated(anon):0kB isolated(file):0kB present:13074432kB managed:12810984kB mlocked:16kB dirty:110400kB writeback:92896kB mapped:852684kB shmem:159408kB slab_reclaimable:339856kB slab_unreclaimable:93732kB kernel_stack:11072kB pagetables:48600kB unstable:0kB bounce:0kB free_pcp:172kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:128 all_unreclaimable? no
[ 2687.946411] lowmem_reserve[]: 0 0 0 0 0
[ 2687.946412] Node 0 DMA: 1*4kB (U) 1*8kB (U) 1*16kB (U) 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15900kB
[ 2687.946419] Node 0 DMA32: 6415*4kB (UME) 2655*8kB (UME) 1398*16kB (UME) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 69268kB
[ 2687.946424] Node 0 Normal: 10812*4kB (ME) 2620*8kB (UM) 72*16kB (M) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 1*4096kB (H) = 69456kB
[ 2687.946439] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[ 2687.946440] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[ 2687.946441] 2829837 total pagecache pages
[ 2687.946442] 0 pages in swap cache
[ 2687.946443] Swap cache stats: add 0, delete 0, find 0/0
[ 2687.946443] Free swap  = 16699388kB
[ 2687.946444] Total swap = 16699388kB
[ 2687.946444] 4175872 pages RAM
[ 2687.946445] 0 pages HighMem/MovableOnly
[ 2687.946445] 86038 pages reserved
[ 2687.946446] 0 pages cma reserved
[ 2687.946446] 0 pages hwpoisoned
[ 2687.946447] [ pid ]   uid  tgid total_vm      rss nr_ptes nr_pmds swapents oom_score_adj name
[ 2687.946453] [  445]     0   445     8850     1198      20       3        0             0 systemd-journal
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[ 2687.946456] [  492]     0   492    11323     1100      23       3        0         -1000 systemd-udevd
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[ 2687.946463] [ 1120]   108  1120    91142     3432      78       3        0             0 whoopsie
[ 2687.946465] [ 1122]   106  1122    10949     1230      27       3        0          -900 dbus-daemon
[ 2687.946466] [ 1130]     0  1130     3964      622      14       3        0             0 anacron
[ 2687.946467] [ 1132]     0  1132   112330     4027      71       3        0             0 NetworkManager
[ 2687.946468] [ 1133]     0  1133    53957     4872      29       5        0             0 snapd
[ 2687.946470] [ 1165]     0  1165    84379     2173      66       3        0             0 ModemManager
[ 2687.946471] [ 1167]   104  1167    64099      871      27       3        0             0 rsyslogd
[ 2687.946472] [ 1168]   122  1168    33544     4711      53       3        0             0 freshclam
[ 2687.946473] [ 1170]   110  1170    11229      911      27       3        0             0 avahi-daemon
[ 2687.946475] [ 1174]     0  1174     7157      789      18       3        0             0 systemd-logind
[ 2687.946476] [ 1183]     0  1183    69059     2174      38       3        0             0 accounts-daemon
[ 2687.946477] [ 1224]   110  1224    11197       85      26       3        0             0 avahi-daemon
[ 2687.946479] [ 1270]     0  1270    70587     2236      41       3        0             0 polkitd
[ 2687.946480] [ 1299]   126  1299    73695     6057      71       4        0          -900 postgres
[ 2687.946481] [ 1302]   126  1302    73695     1019      58       4        0             0 postgres
[ 2687.946482] [ 1303]   126  1303    73695     1425      59       4        0             0 postgres
[ 2687.946483] [ 1304]   126  1304    73695     1019      57       4        0             0 postgres
[ 2687.946485] [ 1305]   126  1305    73802     1637      62       4        0             0 postgres
[ 2687.946486] [ 1306]   126  1306    37475      830      55       4        0             0 postgres
[ 2687.946487] [ 1680]     0  1680     4030      892      13       3        0             0 dhclient
[ 2687.946489] [ 1692] 65534  1692    13245     1056      31       3        0             0 dnsmasq
[ 2687.946490] [ 1971]     0  1971     4868      572      14       3        0             0 irqbalance
[ 2687.946491] [ 2027]   127  2027   940075   118111     325       7        0             0 java
[ 2687.946493] [ 2049]     0  2049    26294     3360      41       3        0             0 sddm
[ 2687.946494] [ 2099]     0  2099     5323      878      16       3        0             0 mysqld_safe
[ 2687.946495] [ 2107]     0  2107    27240     1164      53       3        0             0 sendmail-mta
[ 2687.946496] [ 2109]     0  2109    84298    54063     166       3        0             0 Xorg
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[ 2687.946502] [ 2299]     0  2299    60029     1474     113       4        0             0 nmbd
[ 2687.946503] [ 2312]   120  2312     4275      408      14       3        0             0 nvidia-persiste
[ 2687.946504] [ 2324]     0  2324    71846     2203     135       3        0             0 winbindd
[ 2687.946506] [ 2325]     0  2325    71844     2273     136       3        0             0 winbindd
[ 2687.946507] [ 2331]     0  2331    84508     3947     163       3        0             0 smbd
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[ 2687.946509] [ 2335]     0  2335    71845     1632     136       3        0             0 winbindd
[ 2687.946511] [ 2336]     0  2336    71845     1031     134       3        0             0 winbindd
[ 2687.946512] [ 2338]     0  2338    33686      884      60       3        0             0 veracrypt
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[ 2687.946514] [ 2347]     0  2347    84508     1814     156       3        0             0 smbd
[ 2687.946516] [ 2478]     0  2478    31094     2925      52       3        0             0 sddm-helper
[ 2687.946517] [ 2490]  1000  2490    11345     1227      25       4        0             0 systemd
[ 2687.946518] [ 2491]  1000  2491    15954      614      34       3        0             0 (sd-pam)
[ 2687.946520] [ 2500]  1000  2500     1127      403       8       3        0             0 startkde
[ 2687.946521] [ 2578]     0  2578     7534     4948      18       3        0             0 mount.ntfs
[ 2687.946522] [ 2583]  1000  2583    41663      137      18       3        0             0 gpg-agent
[ 2687.946523] [ 2586]  1000  2586     2785       80       9       3        0             0 ssh-agent
[ 2687.946525] [ 2590]  1000  2590    10900      643      23       3        0             0 dbus-launch
[ 2687.946526] [ 2596]  1000  2596    11038     1108      24       3        0             0 dbus-daemon
[ 2687.946527] [ 2642]     0  2642    33690      970      62       3        0             0 veracrypt
[ 2687.946528] [ 2643]     0  2643    78821      876      70       4        0             0 veracrypt
[ 2687.946530] [ 2704]  1000  2704     1575       24       8       3        0             0 start_kdeinit
[ 2687.946531] [ 2706]  1000  2706    66992     5454     113       3        0             0 kdeinit5
[ 2687.946533] [ 2710]  1000  2710   104611     7283     150       3        0             0 klauncher
[ 2687.946534] [ 2712]     0  2712    24833    22247      52       3        0             0 mount.ntfs
[ 2687.946535] [ 2718]  1000  2718   377382    54973     375       4        0             0 kded5
[ 2687.946536] [ 2732]  1000  2732   101975     7434     147       4        0             0 kaccess
[ 2687.946538] [ 2743]  1000  2743    17577     1667      29       3        0             0 kwrapper5
[ 2687.946539] [ 2746]  1000  2746   128035     9524     166       3        0             0 ksmserver
[ 2687.946540] [ 2748]     0  2748    33690      986      61       3        0             0 veracrypt
[ 2687.946542] [ 2749]     0  2749    78821      879      69       3        0             0 veracrypt
[ 2687.946543] [ 2762]  1000  2762    99939     8388     145       3        0             0 kglobalaccel5
[ 2687.946544] [ 2765]     0  2765    86884     2600      54       4        0             0 upowerd
[ 2687.946545] [ 2768]  1000  2768   194905     8632     158       3        0             0 kactivitymanage
[ 2687.946547] [ 2785]  1000  2785    44633     1163      23       3        0             0 dconf-service
[ 2687.946548] [ 2792]  1000  2792   796368    30269     277       6        0             0 kwin_x11
[ 2687.946549] [ 2796]  1000  2796  1371562     6937      87       5        0             0 baloo_file
[ 2687.946551] [ 2802]  1000  2802  1679410    43163     355       8        0             0 krunner
[ 2687.946552] [ 2818]     0  2818   108587     2972      48       3        0             0 udisksd
[ 2687.946554] [ 2863]  1000  2863  1146275    97958     559       7        0             0 plasmashell
[ 2687.946556] [ 2879]     0  2879     3199      637      10       3        0             0 mount.ntfs
[ 2687.946557] [ 2882]  1000  2882   107872     3747      61       3        0             0 mission-control
[ 2687.946559] [ 2894]     0  2894     4013      419      13       3        0             0 agetty
[ 2687.946560] [ 2898]  1000  2898   140656     8810     162       4        0             0 polkit-kde-auth
[ 2687.946561] [ 2905]  1000  2905    63342     4444      80       3        0             0 kscreen_backend
[ 2687.946562] [ 2914]  1000  2914   100125     7779     143       3        0             0 xembedsniproxy
[ 2687.946564] [ 2919]  1000  2919   114254    11562     173       3        0             0 charmtimetracke
[ 2687.946565] [ 2926]  1000  2926   131566     3645     101       4        0             0 pulseaudio
[ 2687.946567] [ 2927]   116  2927    45886      752      25       4        0             0 rtkit-daemon
[ 2687.946568] [ 2928]  1000  2928    75967     9835     135       3        0             0 qstardict
[ 2687.946570] [ 2932]  1000  2932   440694    28716     359       5        0             0 RetroShare06
[ 2687.946571] [ 2945]  1000  2945    68633     1616      36       4        0             0 gvfsd
[ 2687.946572] [ 2953]  1000  2953    85331     1850      32       4        0             0 gvfsd-fuse
[ 2687.946573] [ 2972]  1000  2972   779950    43029     349       6        0             0 dropbox
[ 2687.946574] [ 2978]  1000  2978   331520    24592     233      19        0             0 skypeforlinux
[ 2687.946576] [ 2984]  1000  2984   141037    18264     189       3        0             0 yakuake
[ 2687.946577] [ 2985]  1000  2985    84453     1369      32       3        0             0 at-spi-bus-laun
[ 2687.946578] [ 2988]  1000  2988    51367     1877      33       4        0             0 gnome-keyring-d
[ 2687.946579] [ 2997]  1000  2997   178857    12805     221       3        0             0 korgac
[ 2687.946580] [ 2999]  1000  2999    10757      972      27       4        0             0 dbus-daemon
[ 2687.946582] [ 3002]  1000  3002    51741     1317      36       3        0             0 at-spi2-registr
[ 2687.946583] [ 3015]  1000  3015   626351    12095     116       5        0             0 copyq
[ 2687.946584] [ 3037]  1000  3037    78126     7392     125       4        0             0 skypeforlinux
[ 2687.946585] [ 3047]  1000  3047    37586     2507      57       3        0             0 obexd
[ 2687.946587] [ 3059]  1000  3059    25344      999      51       3        0             0 gconf-helper
[ 2687.946588] [ 3069]  1000  3069    15384     1472      35       3        0             0 gconfd-2
[ 2687.946589] [ 3079]   107  3079     7067      328      20       3        0             0 uuidd
[ 2687.946590] [ 3085]  1000  3085    87332     7609     126       3        0             0 copyq
[ 2687.946592] [ 3100]  1000  3100    43529     3916      71       4        0             0 kdeinit4
[ 2687.946593] [ 3103]  1000  3103    49619     4728      80       4        0             0 klauncher
[ 2687.946595] [ 3117]  1000  3117    69575     6869     116       4        0             0 kded4
[ 2687.946596] [ 3123]  1000  3123     2543      588      10       3        0             0 ksysguardd
[ 2687.946597] [ 3125]  1000  3125    11789     1615      28       3        0             0 zsh
[ 2687.946598] [ 3129]  1000  3129    97321     8939     141       3        0             0 knotify4
[ 2687.946600] [ 3175]  1000  3175   121189    26207     204       6        0             0 skypeforlinux
[ 2687.946601] [ 3274]  1000  3274   313212    42209     324      86        0           300 skypeforlinux
[ 2687.946603] [ 3379]  1000  3379   123103     9279     157       3        0             0 kdeconnectd
[ 2687.946604] [ 3387]  1000  3387    68391     6958     116       3        0             0 kuiserver
[ 2687.946605] [ 3507]  1000  3507   342526    29181     257       4        0             0 doublecmd
[ 2687.946606] [ 3521]  1000  3521   623171   332899    1038       6        0             0 firefox
[ 2687.946607] [ 3544]  1000  3544   343564    91599     443       5        0             0 thunderbird
[ 2687.946609] [ 3800]  1000  3800    81605     2254      45       4        0             0 gvfsd-http
[ 2687.946610] [ 4353]     0  4353     1127      195       8       3        0             0 sh
[ 2687.946611] [ 4354]     0  4354     1092      367       8       3        0             0 run-parts
[ 2687.946612] [ 4510]     0  4510    68705     2415      68       3        0             0 cups-browsed
[ 2687.946613] [ 5001]     0  5001     3160      736      12       3        0             0 sbackup
[ 2687.946614] [ 5002]     0  5002   101153    19913      97       3        0             0 sbackup
[ 2687.946615] [ 5038]     0  5038    10936      549      24       3        0             0 dbus-launch
[ 2687.946617] [ 5039]     0  5039    10692      644      26       3        0             0 dbus-daemon
[ 2687.946618] [ 5041]     0  5041    15355     1394      34       3        0             0 gconfd-2
[ 2687.946619] [ 5046]     0  5046    10692      773      25       3        0             0 dbus-daemon
[ 2687.946620] [ 5047] 65534  5047    26365     4559      54       4        0             0 sbackup-dbusser
[ 2687.946622] [ 5055]  1000  5055   121399     8962     119       4        0             0 sbackup-indicat
[ 2687.946623] [ 5080]     0  5080    68633     1553      34       3        0             0 gvfsd
[ 2687.946624] [ 5085]     0  5085   101715     1820      33       4        0             0 gvfsd-fuse
[ 2687.946625] [ 5093]     0  5093    46523     1340      26       3        0             0 gvfsd-metadata
[ 2687.946626] [ 5865]     0  5865    80226    74366     162       3        0             0 tar
[ 2687.946627] [ 5867]     0  5867     1192      427       8       3        0             0 gzip
[ 2687.946628] [ 6688]  1000  6688     3183      805      11       3        0             0 bash
[ 2687.946630] [ 6697]  1000  6697     3235      857      12       3        0             0 bash
[ 2687.946631] [ 6698]  1000  6698     1853      164       9       3        0             0 tee
[ 2687.946632] [ 7338]  1000  7338    46611     1396      28       3        0             0 gvfsd-metadata
[ 2687.946634] [ 8551]   126  8551    73917     2014      63       4        0             0 postgres
[ 2687.946635] [ 8552]   126  8552    73917     2022      63       4        0             0 postgres
[ 2687.946636] [ 8554]   126  8554    73917     2051      63       4        0             0 postgres
[ 2687.946637] [ 8556]   126  8556    73917     2051      63       4        0             0 postgres
[ 2687.946639] [ 8559]   126  8559    73917     2051      63       4        0             0 postgres
[ 2687.946640] [ 8560]   126  8560    73917     2051      63       4        0             0 postgres
[ 2687.946641] [ 8562]   126  8562    73917     2051      63       4        0             0 postgres
[ 2687.946642] [ 8643]   126  8643    73917     2051      63       4        0             0 postgres
[ 2687.946644] [ 8645]   126  8645    73917     2051      63       4        0             0 postgres
[ 2687.946645] [ 8648]   126  8648    73917     2051      63       4        0             0 postgres
[ 2687.946646] [ 8649]   126  8649    73917     2051      63       4        0             0 postgres
[ 2687.946647] [ 8652]   126  8652    73917     2051      63       4        0             0 postgres
[ 2687.946648] [ 8653]   126  8653    73917     2051      63       4        0             0 postgres
[ 2687.946649] [ 8656]   126  8656    73917     2038      63       4        0             0 postgres
[ 2687.946650] [ 8657]   126  8657    73917     2036      63       4        0             0 postgres
[ 2687.946652] [ 8659]   126  8659    73917     2051      63       4        0             0 postgres
[ 2687.946653] [ 8661]   126  8661    73917     2051      63       4        0             0 postgres
[ 2687.946654] [ 8663]   126  8663    73917     2051      63       4        0             0 postgres
[ 2687.946655] [ 8665]   126  8665    73917     2051      63       4        0             0 postgres
[ 2687.946656] [ 8667]   126  8667    73917     2051      63       4        0             0 postgres
[ 2687.946658] [ 9415]  1000  9415   135556    80527     253       2        0             0 steam
[ 2687.946659] [ 9417]  1000  9417    33897    13343      58       2        0             0 steam
[ 2687.946660] [ 9418]  1000  9418     1127      176       8       3        0             0 sh
[ 2687.946661] [ 9420]  1000  9420     3164      767      12       3        0             0 steamwebhelper.
[ 2687.946663] [ 9422]  1000  9422   151458    19771     193       5        0             0 steamwebhelper
[ 2687.946664] [ 9424]  1000  9424    78943     9566     131       4        0             0 steamwebhelper
[ 2687.946666] [ 9542]  1000  9542   232518    13239     162      25        0           300 steamwebhelper
[ 2687.946667] [ 9606]  1000  9606   233909    14334     165      26        0           300 steamwebhelper
[ 2687.946668] [ 9734]   111  9734    76055     3464      50       3        0             0 colord
[ 2687.946669] [10387]     0 10387    23345     1859      46       3        0             0 cupsd
[ 2687.946671] [10389]     7 10389    20311     1396      41       3        0             0 dbus
[ 2687.946672] [10390]     7 10390    20311     1441      43       3        0             0 dbus
[ 2687.946673] Out of memory: Kill process 3274 (skypeforlinux) score 305 or sacrifice child
[ 2687.946697] Killed process 3274 (skypeforlinux) total-vm:1252848kB, anon-rss:103412kB, file-rss:65424kB

Sospecho que tiene que ver con no liberar io caché, desafortunadamente no guardé la salida de free.

EDITAR3: pensé que la pregunta en negrita estaba claramente marcada, pero algunas personas no pudieron leer y comenzaron a marcar toda esta publicación como "poner en espera como no está claro lo que estás preguntando" . He proporcionado toda la información adicional solicitada y solo para asegurarme de que el título editado sea una pregunta para evitar situaciones en las que alguien ignora el texto de la pregunta y lo marca de inmediato como "no está claro qué es la pregunta" ...

EDITAR4: sucedió nuevamente, definitivamente relacionado con un alto IO (lectura de HDD). Salida de free:

              total        used        free      shared  buff/cache   available
Mem:          15975        3535         294         151       12145       11867
Swap:         16307           1       16306
monnef
fuente
3
Deberá proporcionar la salida completa del mensaje asesino OOM. Esto no se puede responder sin eso.
Patrick
1
Es extraño que el intercambio no se use ... ¿podría agregar la salida de cat /proc/sys/vm/swappiness.
Thomas
1
Bueno, tu memoria está extremadamente fragmentada. su DMA32 tiene 0 páginas> = orden = 3, y normal solo tiene un orden = trozo 12 (que se puede dividir en trozos más pequeños, pero aún así significa que está bajo). Sin embargo, esto gfp_maskindica que no solicitó específicamente la zona DMA32, por lo que debería poder salir de lo normal.
Patrick
44
¿Por qué está cerrado "no está claro lo que estás preguntando"? Se hace una pregunta muy clara y no hay solicitudes pendientes de más información. La pregunta tiene el mensaje de Oom Killer proporcionado, que debería ser más que suficiente para resolverlo.
Patrick
2
No entiendo por qué las personas votan para cerrar esto (¿incluso lo están leyendo?). El recuadro sobre "poner en espera" no se aplica a esta pregunta: la pregunta se indica claramente (en negrita y ahora incluso en el título) y respondí todas las solicitudes de información adicionales. Estoy empezando a pensar que stackexchange es un mal sitio para hacer preguntas y esos rumores sobre estar lleno de trolls podrían ser correctos: - /.
monnef

Respuestas:

2

A sus preguntas:
Por qué: Probablemente esté utilizando Kernel 4.4.0-59. Si es así, se ve afectado por un error de OOM: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1655842 .
Cómo solucionarlo cuando esto vuelva a suceder: degrada tu kernel a, por ejemplo. 4.4.0-57.

Nicolas Bigler
fuente
Sí, estoy usando esa versión (predeterminada) de kernel ( 4.4.0-59-generic). Intentaré degradar, gracias por su sugerencia.
monnef