The nova-cloud-controller failures seen in https://review.opendev.org/#/c/749498/ is due to the unit going OOM.
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550707] nova-scheduler invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550709] nova-scheduler cpuset=/ mems_allowed=0
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550715] CPU: 3 PID: 14329 Comm: nova-scheduler Not tainted 4.15.0-115-generic #116-Ubuntu
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550716] Hardware name: OpenStack Foundation OpenStack Nova, BIOS 1.10.2-1ubuntu1 04/01/2014
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550717] Call Trace:
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550725] dump_stack+0x6d/0x8e
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550729] dump_header+0x71/0x285
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550735] oom_kill_process+0x21f/0x420
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550737] out_of_memory+0x116/0x4e0
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550740] __alloc_pages_slowpath+0xa53/0xe00
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550743] __alloc_pages_nodemask+0x29a/0x2c0
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550748] alloc_pages_current+0x6a/0xe0
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550750] __page_cache_alloc+0x81/0xa0
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550751] filemap_fault+0x3f9/0x700
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550754] ? page_add_file_rmap+0x134/0x180
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550756] ? filemap_map_pages+0x22d/0x390
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550759] ext4_filemap_fault+0x31/0x44
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550762] __do_fault+0x5b/0x115
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550764] __handle_mm_fault+0xdf1/0x1290
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550766] handle_mm_fault+0xb1/0x210
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550770] __do_page_fault+0x281/0x4b0
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550773] ? __schedule+0x256/0x880
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550776] do_page_fault+0x2e/0xe0
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550778] ? async_page_fault+0x2f/0x50
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550782] do_async_page_fault+0x51/0x80
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550783] async_page_fault+0x45/0x50
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550785] RIP: 0033:0x4ca330
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550786] RSP: 002b:00007ffc621f1d78 EFLAGS: 00010246
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550787] RAX: 0000000000000004 RBX: 0000000000000000 RCX: 0000000000000000
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550788] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007fa6d8322860
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550789] RBP: 00007fa6d81c6ca8 R08: 0000000000000083 R09: 0000000000000000
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550790] R10: 00007fa6d8322860 R11: 00000000004ca330 R12: 00007ffc621f1e80
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550791] R13: 0000000003257fd8 R14: 0000000003257fe0 R15: 0000000000000000
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550805] Mem-Info:
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550809] active_anon:713752 inactive_anon:191 isolated_anon:0
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550809] active_file:56 inactive_file:116 isolated_file:0
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550809] unevictable:0 dirty:0 writeback:0 unstable:0
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550809] slab_reclaimable:7984 slab_unreclaimable:14470
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550809] mapped:292 shmem:316 pagetables:7690 bounce:0
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550809] free:14122 free_pcp:600 free_cma:0
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550812] Node 0 active_anon:2855008kB inactive_anon:764kB active_file:224kB inactive_file:464kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:1168kB dirty:0kB writeback:0kB shmem:1264kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550813] Node 0 DMA free:12072kB min:232kB low:288kB high:344kB active_anon:3768kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:24kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550816] lowmem_reserve[]: 0 2960 2960 2960 2960
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550818] Node 0 DMA32 free:44416kB min:44820kB low:56024kB high:67228kB active_anon:2851240kB inactive_anon:764kB active_file:416kB inactive_file:772kB unevictable:0kB writepending:0kB present:3129192kB managed:3056632kB mlocked:0kB kernel_stack:5600kB pagetables:30736kB bounce:0kB free_pcp:2400kB local_pcp:328kB free_cma:0kB
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550821] lowmem_reserve[]: 0 0 0 0 0
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550823] Node 0 DMA: 6*4kB (UME) 2*8kB (UE) 2*16kB (E) 3*32kB (UE) 4*64kB (UME) 3*128kB (UE) 2*256kB (UM) 1*512kB (E) 2*1024kB (UE) 2*2048kB (ME) 1*4096kB (M) = 12072kB
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550830] Node 0 DMA32: 1042*4kB (UME) 438*8kB (UME) 119*16kB (UMEH) 85*32kB (UMEH) 35*64kB (UME) 15*128kB (UMEH) 52*256kB (UME) 23*512kB (UMEH) 4*1024kB (ME) 0*2048kB 0*4096kB = 45640kB
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550837] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550838] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550839] 543 total pagecache pages
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550840] 0 pages in swap cache
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550841] Swap cache stats: add 0, delete 0, find 0/0
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550842] Free swap = 0kB
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550843] Total swap = 0kB
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550843] 786296 pages RAM
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550844] 0 pages HighMem/MovableOnly
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550844] 18161 pages reserved
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550845] 0 pages cma reserved
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550846] 0 pages hwpoisoned
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550846] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550851] [ 455] 0 455 19635 191 172032 0 0 systemd-journal
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550853] [ 469] 0 469 24427 44 102400 0 0 lvmetad
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550855] [ 479] 0 479 10801 279 114688 0 -1000 systemd-udevd
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550856] [ 609] 62583 609 35489 150 188416 0 0 systemd-timesyn
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550858] [ 763] 100 763 20051 186 184320 0 0 systemd-network
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550859] [ 786] 101 786 17698 174 167936 0 0 systemd-resolve
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550861] [ 985] 0 985 7083 52 102400 0 0 atd
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550862] [ 987] 0 987 27621 85 122880 0 0 irqbalance
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550863] [ 989] 0 989 7937 75 106496 0 0 cron
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550865] [ 1005] 103 1005 12547 214 147456 0 -900 dbus-daemon
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550866] [ 1010] 0 1010 72000 226 204800 0 0 accounts-daemon
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550868] [ 1011] 0 1011 42738 1951 229376 0 0 networkd-dispat
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550869] [ 1013] 0 1013 15538 170 163840 0 0 systemd-logind
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550870] [ 1021] 0 1021 40269 34 86016 0 0 lxcfs
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550872] [ 1056] 0 1056 46919 1976 258048 0 0 unattended-upgr
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550873] [ 1062] 0 1062 72221 197 204800 0 0 polkitd
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550880] [ 1083] 0 1083 4103 37 73728 0 0 agetty
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550882] [ 1090] 0 1090 3722 33 73728 0 0 agetty
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550883] [ 1164] 0 1164 18075 183 188416 0 -1000 sshd
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550885] [ 2153] 0 2153 5442 73 86016 0 0 bash
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550886] [ 2170] 0 2170 357355 3296 524288 0 0 jujud
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550888] [ 2671] 107 2671 13333 97 135168 0 0 dnsmasq
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550889] [ 3665] 0 3665 5442 73 81920 0 0 bash
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550890] [ 3679] 0 3679 283623 3654 483328 0 0 jujud
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550892] [ 3716] 0 3716 340133 2169 413696 0 0 lxd
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550893] [16775] 102 16775 66817 219 167936 0 0 rsyslogd
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550895] [21046] 106 21046 7149 45 102400 0 0 uuidd
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550896] [18527] 111 18527 106448 570 143360 0 0 memcached
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550898] [18667] 0 18667 13539 289 139264 0 0 haproxy
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550899] [18672] 113 18672 14324 862 139264 0 0 haproxy
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550901] [ 6601] 0 6601 28090 711 258048 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550903] [13942] 64060 13942 52522 1493 286720 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550904] [13943] 64060 13943 52524 1493 286720 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550906] [13944] 64060 13944 52522 1493 286720 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550907] [13945] 64060 13945 52522 1493 286720 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550908] [13946] 64060 13946 52522 1493 286720 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550910] [13947] 64060 13947 52522 1493 286720 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550911] [13948] 64060 13948 52522 1493 286720 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550913] [13949] 64060 13949 52522 1493 286720 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550914] [13950] 64060 13950 129048 19623 790528 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550915] [13951] 64060 13951 129048 19604 790528 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550917] [13952] 64060 13952 129112 19757 794624 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550918] [13953] 64060 13953 128920 19480 790528 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550920] [13954] 64060 13954 129176 19816 794624 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550921] [13955] 64060 13955 128982 19567 790528 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550923] [13956] 64060 13956 128920 19485 790528 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550924] [13957] 64060 13957 129112 19777 794624 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550925] [14112] 33 14112 528619 2734 512000 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550927] [14113] 33 14113 512132 2558 507904 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550928] [14243] 64060 14243 73206 21476 606208 0 0 nova-conductor
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550929] [14271] 64060 14271 74349 22650 606208 0 0 nova-scheduler
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550931] [14312] 64060 14312 77507 25838 634880 0 0 nova-conductor
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550932] [14313] 64060 14313 77476 25809 634880 0 0 nova-conductor
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550933] [14314] 64060 14314 77347 25680 630784 0 0 nova-conductor
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550935] [14315] 64060 14315 77453 25740 634880 0 0 nova-conductor
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550936] [14317] 64060 14317 77559 25877 634880 0 0 nova-conductor
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550938] [14318] 64060 14318 77611 25952 638976 0 0 nova-conductor
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550939] [14319] 64060 14319 77675 25982 638976 0 0 nova-conductor
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550940] [14320] 64060 14320 77728 26062 638976 0 0 nova-conductor
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550942] [14322] 64060 14322 76069 24348 606208 0 0 nova-scheduler
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550943] [14323] 64060 14323 76075 24385 606208 0 0 nova-scheduler
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550944] [14325] 64060 14325 76144 24460 606208 0 0 nova-scheduler
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550945] [14326] 64060 14326 75947 24269 606208 0 0 nova-scheduler
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550947] [14327] 64060 14327 76064 24378 606208 0 0 nova-scheduler
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550948] [14328] 64060 14328 75941 24276 606208 0 0 nova-scheduler
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550949] [14329] 64060 14329 76041 24405 606208 0 0 nova-scheduler
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550951] [14330] 64060 14330 75985 24318 606208 0 0 nova-scheduler
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550953] [24910] 64060 24910 137208 29240 876544 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550954] [24966] 64060 24966 137338 29265 880640 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550955] [25007] 64060 25007 136954 28187 868352 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550957] [25017] 64060 25017 136954 28375 872448 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550958] [25032] 64060 25032 137338 29087 876544 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550960] [25046] 64060 25046 137016 28547 872448 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550961] [25061] 64060 25061 137018 28333 872448 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550962] [25069] 64060 25069 113339 13090 655360 0 0 apache2
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.550964] Out of memory: Kill process 24966 (apache2) score 38 or sacrifice child
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.555338] Killed process 24966 (apache2) total-vm:549352kB, anon-rss:117060kB, file-rss:0kB, shmem-rss:0kB
Sep 4 15:40:25 juju-9373d6-zaza-a34cd377d28f-5 kernel: [ 4619.584177] oom_reaper: reaped process 24966 (apache2), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
https:/ /review. opendev. org/#/c/ 750126/