Thanks all for picking up a discussion and all the useful hints.
The container has been behaving since reboot, using 0 swap ATM.
Post-mortem on dhcp service crash is showing 100% memory usage and OOM,
still not sure why though:
[Tue Mar 22 00:24:10 2022] apt-get invoked oom-killer:
gfp_mask=0x100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0
[Tue Mar 22 00:24:10 2022] CPU: 1 PID: 21065 Comm: apt-get Tainted:
P OE 5.4.44-1-pve #1
[Tue Mar 22 00:24:10 2022] Hardware name: IBM System x3650 M3
-[7945F2G]-/69Y4438, BIOS -[D6E162AUS-1.20]- 05/07/2014
[Tue Mar 22 00:24:10 2022] Call Trace:
[Tue Mar 22 00:24:10 2022] dump_stack+0x6d/0x9a
[Tue Mar 22 00:24:10 2022] dump_header+0x4f/0x1e1
[Tue Mar 22 00:24:10 2022] oom_kill_process.cold.33+0xb/0x10
[Tue Mar 22 00:24:10 2022] out_of_memory+0x1ad/0x490
[Tue Mar 22 00:24:10 2022] mem_cgroup_out_of_memory+0xc4/0xd0
[Tue Mar 22 00:24:10 2022] try_charge+0x76b/0x7e0
[Tue Mar 22 00:24:10 2022] ? sched_clock+0x9/0x10
[Tue Mar 22 00:24:10 2022] mem_cgroup_try_charge+0x71/0x190
[Tue Mar 22 00:24:10 2022] __add_to_page_cache_locked+0x265/0x340
[Tue Mar 22 00:24:10 2022] ? scan_shadow_nodes+0x30/0x30
[Tue Mar 22 00:24:10 2022] add_to_page_cache_lru+0x4f/0xd0
[Tue Mar 22 00:24:10 2022] pagecache_get_page+0xff/0x2e0
[Tue Mar 22 00:24:10 2022] filemap_fault+0x86f/0xa60
[Tue Mar 22 00:24:10 2022] ? xas_load+0xc/0x80
[Tue Mar 22 00:24:10 2022] ? xas_find+0x17e/0x1b0
[Tue Mar 22 00:24:10 2022] ? filemap_map_pages+0x28d/0x3b0
[Tue Mar 22 00:24:10 2022] ? mem_cgroup_try_charge+0x71/0x190
[Tue Mar 22 00:24:10 2022] __do_fault+0x3c/0x130
[Tue Mar 22 00:24:10 2022] __handle_mm_fault+0xeb0/0x12e0
[Tue Mar 22 00:24:10 2022] handle_mm_fault+0xc9/0x1f0
[Tue Mar 22 00:24:10 2022] __do_page_fault+0x233/0x4c0
[Tue Mar 22 00:24:10 2022] do_page_fault+0x2c/0xe0
[Tue Mar 22 00:24:10 2022] page_fault+0x34/0x40
[Tue Mar 22 00:24:10 2022] RIP: 0033:0x7fa5788f1afc
[Tue Mar 22 00:24:10 2022] Code: Bad RIP value.
[Tue Mar 22 00:24:10 2022] RSP: 002b:00007ffe3ca68390 EFLAGS: 00010246
[Tue Mar 22 00:24:10 2022] RAX: 00007fa574d14010 RBX: 000055e8fade31c8
RCX: 0000000000008d55
[Tue Mar 22 00:24:10 2022] RDX: 00007fa574ebc008 RSI: 0000000000000000
RDI: 00007fa574d14018
[Tue Mar 22 00:24:10 2022] RBP: 000055e8fc9e6140 R08: ffffffffffffffff
R09: 0000000000000000
[Tue Mar 22 00:24:10 2022] R10: 0000000000000022 R11: 0000000000000246
R12: 000055e8fc9e0b50
[Tue Mar 22 00:24:10 2022] R13: 000000000000d1af R14: 0000000000000000
R15: 0000000000000000
[Tue Mar 22 00:24:10 2022] memory: usage 524288kB, limit 524288kB,
failcnt 451174
[Tue Mar 22 00:24:10 2022] memory+swap: usage 1048548kB, limit
1048576kB, failcnt 2828266
[Tue Mar 22 00:24:10 2022] kmem: usage 15708kB, limit
9007199254740988kB, failcnt 0
[Tue Mar 22 00:24:10 2022] Memory cgroup stats for /lxc/101:
[Tue Mar 22 00:24:10 2022] anon 21909504
[Tue Mar 22 00:24:10 2022] file 499474432
[Tue Mar 22 00:24:10 2022] kernel_stack 442368
[Tue Mar 22 00:24:10 2022] slab 12877824
[Tue Mar 22 00:24:10 2022] sock 0
[Tue Mar 22 00:24:10 2022] shmem 499851264
[Tue Mar 22 00:24:10 2022] file_mapped 140439552
[Tue Mar 22 00:24:10 2022] file_dirty 0
[Tue Mar 22 00:24:10 2022] file_writeback 135168
[Tue Mar 22 00:24:10 2022] anon_thp 0
[Tue Mar 22 00:24:10 2022] inactive_anon 291426304
[Tue Mar 22 00:24:10 2022] active_anon 229199872
[Tue Mar 22 00:24:10 2022] inactive_file 913408
[Tue Mar 22 00:24:10 2022] active_file 0
[Tue Mar 22 00:24:10 2022] unevictable 0
[Tue Mar 22 00:24:10 2022] slab_reclaimable 6713344
[Tue Mar 22 00:24:10 2022] slab_unreclaimable 6164480
[Tue Mar 22 00:24:10 2022] pgfault 1443466134
[Tue Mar 22 00:24:10 2022] pgmajfault 9724242
[Tue Mar 22 00:24:10 2022] workingset_refault 9709788
[Tue Mar 22 00:24:10 2022] workingset_activate 2071971
[Tue Mar 22 00:24:10 2022] workingset_nodereclaim 0
[Tue Mar 22 00:24:10 2022] pgrefill 12114220
[Tue Mar 22 00:24:10 2022] pgscan 18064348
[Tue Mar 22 00:24:10 2022] pgsteal 9855662
[Tue Mar 22 00:24:10 2022] Tasks state (memory values in pages):
[Tue Mar 22 00:24:10 2022] [ pid ] uid tgid total_vm rss
pgtables_bytes swapents oom_score_adj name
[Tue Mar 22 00:24:10 2022] [ 2211] 0 2211 14228 228
159744 127 0 systemd
[Tue Mar 22 00:24:10 2022] [ 2622] 0 2622 93208 59485
753664 73 0 systemd-journal
[Tue Mar 22 00:24:10 2022] [ 2691] 107 2691 11282 43
126976 71 -900 dbus-daemon
[Tue Mar 22 00:24:10 2022] [ 2729] 0 2729 62560 312
135168 87 0 rsyslogd
[Tue Mar 22 00:24:10 2022] [ 2731] 0 2731 9495 28
114688 89 0 systemd-logind
[Tue Mar 22 00:24:10 2022] [ 2730] 0 2730 6998 17
98304 44 0 cron
[Tue Mar 22 00:24:10 2022] [ 11695] 0 11695 10289 2685
114688 0 0 dhcpd
[Tue Mar 22 00:24:10 2022] [ 3025] 0 3025 20295 27
135168 172 0 master
[Tue Mar 22 00:24:10 2022] [ 3029] 101 3029 20824 26
163840 170 0 qmgr
[Tue Mar 22 00:24:10 2022] [ 13677] 101 13677 20812 192
155648 0 0 pickup
[Tue Mar 22 00:24:10 2022] [ 2915] 0 2915 17488 30
176128 162 -1000 sshd
[Tue Mar 22 00:24:10 2022] [ 2762] 0 2762 3164 0
65536 32 0 agetty
[Tue Mar 22 00:24:10 2022] [ 2761] 0 2761 3164 1
69632 32 0 agetty
[Tue Mar 22 00:24:10 2022] [ 2763] 0 2763 3164 1
73728 31 0 agetty
[Tue Mar 22 00:24:10 2022] [ 21053] 0 21053 1069 17
53248 0 0 apt.systemd.dai
[Tue Mar 22 00:24:10 2022] [ 21057] 0 21057 1069 31
53248 0 0 apt.systemd.dai
[Tue Mar 22 00:24:10 2022] [ 21065] 0 21065 16898 1434
176128 0 0 apt-get
[Tue Mar 22 00:24:10 2022]
oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=ns,mems_allowed=0-1,oom_memcg=/lxc/101,task_memcg=/lxc/101/ns,task=systemd-journal,pid=2622,uid=0
[Tue Mar 22 00:24:10 2022] Memory cgroup out of memory: Killed process
2622 (systemd-journal) total-vm:372832kB, anon-rss:200kB, file-rss:0kB,
shmem-rss:237740kB, UID:0 pgtables:736kB oom_score_adj:0
[Tue Mar 22 00:24:10 2022] oom_reaper: reaped process 2622
(systemd-journal), now anon-rss:0kB, file-rss:0kB, shmem-rss:237740kB
[Tue Mar 22 00:24:10 2022] apt-get invoked oom-killer:
gfp_mask=0x100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0
[Tue Mar 22 00:24:10 2022] CPU: 1 PID: 21065 Comm: apt-get Tainted:
P OE 5.4.44-1-pve #1
[Tue Mar 22 00:24:10 2022] Hardware name: IBM System x3650 M3
-[7945F2G]-/69Y4438, BIOS -[D6E162AUS-1.20]- 05/07/2014
[Tue Mar 22 00:24:10 2022] Call Trace:
[Tue Mar 22 00:24:10 2022] dump_stack+0x6d/0x9a
[Tue Mar 22 00:24:10 2022] dump_header+0x4f/0x1e1
[Tue Mar 22 00:24:10 2022] oom_kill_process.cold.33+0xb/0x10
[Tue Mar 22 00:24:10 2022] out_of_memory+0x1ad/0x490
[Tue Mar 22 00:24:10 2022] mem_cgroup_out_of_memory+0xc4/0xd0
[Tue Mar 22 00:24:10 2022] try_charge+0x76b/0x7e0
[Tue Mar 22 00:24:10 2022] ? sched_clock+0x9/0x10
[Tue Mar 22 00:24:10 2022] mem_cgroup_try_charge+0x71/0x190
[Tue Mar 22 00:24:10 2022] __add_to_page_cache_locked+0x265/0x340
[Tue Mar 22 00:24:10 2022] ? scan_shadow_nodes+0x30/0x30
[Tue Mar 22 00:24:10 2022] add_to_page_cache_lru+0x4f/0xd0
[Tue Mar 22 00:24:10 2022] pagecache_get_page+0xff/0x2e0
[Tue Mar 22 00:24:10 2022] filemap_fault+0x86f/0xa60
[Tue Mar 22 00:24:10 2022] ? xas_load+0xc/0x80
[Tue Mar 22 00:24:10 2022] ? xas_find+0x17e/0x1b0
[Tue Mar 22 00:24:10 2022] ? filemap_map_pages+0x28d/0x3b0
[Tue Mar 22 00:24:10 2022] ? mem_cgroup_try_charge+0x71/0x190
[Tue Mar 22 00:24:10 2022] __do_fault+0x3c/0x130
[Tue Mar 22 00:24:10 2022] __handle_mm_fault+0xeb0/0x12e0
[Tue Mar 22 00:24:10 2022] handle_mm_fault+0xc9/0x1f0
[Tue Mar 22 00:24:10 2022] __do_page_fault+0x233/0x4c0
[Tue Mar 22 00:24:10 2022] do_page_fault+0x2c/0xe0
[Tue Mar 22 00:24:10 2022] page_fault+0x34/0x40
[Tue Mar 22 00:24:10 2022] RIP: 0033:0x7fa577eea3e3
[Tue Mar 22 00:24:10 2022] Code: Bad RIP value.
[Tue Mar 22 00:24:10 2022] RSP: 002b:00007ffe3ca68508 EFLAGS: 00010206
[Tue Mar 22 00:24:10 2022] RAX: 00007fa574a10010 RBX: 00007ffe3ca68670
RCX: 00007fa574a2c000
[Tue Mar 22 00:24:10 2022] RDX: 00007fa574d13000 RSI: 0000000000000000
RDI: 00007fa574a10010
[Tue Mar 22 00:24:10 2022] RBP: 00007ffe3ca68620 R08: ffffffffffffffff
R09: 0000000000000000
[Tue Mar 22 00:24:10 2022] R10: 0000000000000022 R11: 0000000000000246
R12: 000055e8fc9e69e0
[Tue Mar 22 00:24:10 2022] R13: 0000000000000001 R14: 00007ffe3ca686d0
R15: 0000000000000000
[Tue Mar 22 00:24:10 2022] memory: usage 524288kB, limit 524288kB,
failcnt 451286
[Tue Mar 22 00:24:10 2022] memory+swap: usage 1048504kB, limit
1048576kB, failcnt 2828462
[Tue Mar 22 00:24:10 2022] kmem: usage 14960kB, limit
9007199254740988kB, failcnt 0
[Tue Mar 22 00:24:10 2022] Memory cgroup stats for /lxc/101:
[Tue Mar 22 00:24:10 2022] anon 22560768
[Tue Mar 22 00:24:10 2022] file 499466240
[Tue Mar 22 00:24:10 2022] kernel_stack 442368
[Tue Mar 22 00:24:10 2022] slab 12877824
[Tue Mar 22 00:24:10 2022] sock 0
[Tue Mar 22 00:24:10 2022] shmem 499851264
[Tue Mar 22 00:24:10 2022] file_mapped 270336
[Tue Mar 22 00:24:10 2022] file_dirty 0
[Tue Mar 22 00:24:10 2022] file_writeback 135168
[Tue Mar 22 00:24:10 2022] anon_thp 0
[Tue Mar 22 00:24:10 2022] inactive_anon 238845952
[Tue Mar 22 00:24:10 2022] active_anon 282710016
[Tue Mar 22 00:24:10 2022] inactive_file 802816
[Tue Mar 22 00:24:10 2022] active_file 0
[Tue Mar 22 00:24:10 2022] unevictable 0
[Tue Mar 22 00:24:10 2022] slab_reclaimable 6713344
[Tue Mar 22 00:24:10 2022] slab_unreclaimable 6164480
[Tue Mar 22 00:24:10 2022] pgfault 1443466959
[Tue Mar 22 00:24:10 2022] pgmajfault 9724539
[Tue Mar 22 00:24:10 2022] workingset_refault 9710085
[Tue Mar 22 00:24:10 2022] workingset_activate 2071971
[Tue Mar 22 00:24:10 2022] workingset_nodereclaim 0
[Tue Mar 22 00:24:10 2022] pgrefill 12126689
[Tue Mar 22 00:24:10 2022] pgscan 18064971
[Tue Mar 22 00:24:10 2022] pgsteal 9855948
[Tue Mar 22 00:24:10 2022] Tasks state (memory values in pages):
[Tue Mar 22 00:24:10 2022] [ pid ] uid tgid total_vm rss
pgtables_bytes swapents oom_score_adj name
[Tue Mar 22 00:24:10 2022] [ 2211] 0 2211 14228 228
159744 127 0 systemd
[Tue Mar 22 00:24:10 2022] [ 2691] 107 2691 11282 43
126976 71 -900 dbus-daemon
[Tue Mar 22 00:24:10 2022] [ 2729] 0 2729 62560 312
135168 87 0 rsyslogd
[Tue Mar 22 00:24:10 2022] [ 2731] 0 2731 9495 28
114688 89 0 systemd-logind
[Tue Mar 22 00:24:10 2022] [ 2730] 0 2730 6998 17
98304 44 0 cron
[Tue Mar 22 00:24:10 2022] [ 11695] 0 11695 10289 2685
114688 0 0 dhcpd
[Tue Mar 22 00:24:10 2022] [ 3025] 0 3025 20295 27
135168 172 0 master
[Tue Mar 22 00:24:10 2022] [ 3029] 101 3029 20824 26
163840 170 0 qmgr
[Tue Mar 22 00:24:10 2022] [ 13677] 101 13677 20812 192
155648 0 0 pickup
[Tue Mar 22 00:24:10 2022] [ 2915] 0 2915 17488 30
176128 162 -1000 sshd
[Tue Mar 22 00:24:10 2022] [ 2762] 0 2762 3164 0
65536 32 0 agetty
[Tue Mar 22 00:24:10 2022] [ 2761] 0 2761 3164 1
69632 32 0 agetty
[Tue Mar 22 00:24:10 2022] [ 2763] 0 2763 3164 1
73728 31 0 agetty
[Tue Mar 22 00:24:10 2022] [ 21053] 0 21053 1069 17
53248 0 0 apt.systemd.dai
[Tue Mar 22 00:24:10 2022] [ 21057] 0 21057 1069 31
53248 0 0 apt.systemd.dai
[Tue Mar 22 00:24:10 2022] [ 21065] 0 21065 17753 1712
180224 0 0 apt-get
[Tue Mar 22 00:24:10 2022]
oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=ns,mems_allowed=0-1,oom_memcg=/lxc/101,task_memcg=/lxc/101/ns,task=dhcpd,pid=11695,uid=0
[Tue Mar 22 00:24:10 2022] Memory cgroup out of memory: Killed process
11695 (dhcpd) total-vm:41156kB, anon-rss:10740kB, file-rss:0kB,
shmem-rss:0kB, UID:0 pgtables:112kB oom_score_adj:0
[Tue Mar 22 00:24:10 2022] oom_reaper: reaped process 11695 (dhcpd), now
anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
[Tue Mar 22 00:24:10 2022] systemd-journal invoked oom-killer:
gfp_mask=0x100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0
[Tue Mar 22 00:24:10 2022] CPU: 1 PID: 21068 Comm: systemd-journal
Tainted: P OE 5.4.44-1-pve #1
[Tue Mar 22 00:24:10 2022] Hardware name: IBM System x3650 M3
-[7945F2G]-/69Y4438, BIOS -[D6E162AUS-1.20]- 05/07/2014
[Tue Mar 22 00:24:10 2022] Call Trace:
[Tue Mar 22 00:24:10 2022] dump_stack+0x6d/0x9a
[Tue Mar 22 00:24:10 2022] dump_header+0x4f/0x1e1
[Tue Mar 22 00:24:10 2022] oom_kill_process.cold.33+0xb/0x10
[Tue Mar 22 00:24:10 2022] out_of_memory+0x1ad/0x490
[Tue Mar 22 00:24:10 2022] mem_cgroup_out_of_memory+0xc4/0xd0
[Tue Mar 22 00:24:10 2022] try_charge+0x76b/0x7e0
[Tue Mar 22 00:24:10 2022] mem_cgroup_try_charge+0x71/0x190
[Tue Mar 22 00:24:10 2022] mem_cgroup_try_charge_delay+0x22/0x50
[Tue Mar 22 00:24:10 2022] shmem_getpage_gfp+0x2e8/0x8e0
[Tue Mar 22 00:24:10 2022] shmem_fallocate+0x339/0x4b0
[Tue Mar 22 00:24:10 2022] ? common_file_perm+0x5e/0x140
[Tue Mar 22 00:24:10 2022] vfs_fallocate+0x147/0x280
[Tue Mar 22 00:24:10 2022] ksys_fallocate+0x41/0x80
[Tue Mar 22 00:24:10 2022] __x64_sys_fallocate+0x1e/0x30
[Tue Mar 22 00:24:10 2022] do_syscall_64+0x57/0x190
[Tue Mar 22 00:24:10 2022] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[Tue Mar 22 00:24:10 2022] RIP: 0033:0x7fd74ce55bc6
[Tue Mar 22 00:24:10 2022] Code: Bad RIP value.
[Tue Mar 22 00:24:10 2022] RSP: 002b:00007ffcc82dae30 EFLAGS: 00000246
ORIG_RAX: 000000000000011d
[Tue Mar 22 00:24:10 2022] RAX: ffffffffffffffda RBX: 00000000007fff10
RCX: 00007fd74ce55bc6
[Tue Mar 22 00:24:10 2022] RDX: 00000000000000f0 RSI: 0000000000000000
RDI: 0000000000000013
[Tue Mar 22 00:24:10 2022] RBP: 0000000000000005 R08: 00000000000000f0
R09: 00000000000000f0
[Tue Mar 22 00:24:10 2022] R10: 00000000007fff10 R11: 0000000000000246
R12: 0000558f555e9e50
[Tue Mar 22 00:24:10 2022] R13: 00007ffcc82daf70 R14: 00007ffcc82daf78
R15: 0000000000800000
[Tue Mar 22 00:24:10 2022] memory: usage 524244kB, limit 524288kB,
failcnt 451977
[Tue Mar 22 00:24:10 2022] memory+swap: usage 1048576kB, limit
1048576kB, failcnt 2831085
[Tue Mar 22 00:24:10 2022] kmem: usage 14980kB, limit
9007199254740988kB, failcnt 0
[Tue Mar 22 00:24:10 2022] Memory cgroup stats for /lxc/101:
[Tue Mar 22 00:24:10 2022] anon 15597568
[Tue Mar 22 00:24:10 2022] file 506335232
[Tue Mar 22 00:24:10 2022] kernel_stack 442368
[Tue Mar 22 00:24:10 2022] slab 12877824
[Tue Mar 22 00:24:10 2022] sock 0
[Tue Mar 22 00:24:10 2022] shmem 506744832
[Tue Mar 22 00:24:10 2022] file_mapped 270336
[Tue Mar 22 00:24:10 2022] file_dirty 0
[Tue Mar 22 00:24:10 2022] file_writeback 135168
[Tue Mar 22 00:24:10 2022] anon_thp 0
[Tue Mar 22 00:24:10 2022] inactive_anon 264527872
[Tue Mar 22 00:24:10 2022] active_anon 256671744
[Tue Mar 22 00:24:10 2022] inactive_file 905216
[Tue Mar 22 00:24:10 2022] active_file 0
[Tue Mar 22 00:24:10 2022] unevictable 0
[Tue Mar 22 00:24:10 2022] slab_reclaimable 6713344
[Tue Mar 22 00:24:10 2022] slab_unreclaimable 6164480
[Tue Mar 22 00:24:10 2022] pgfault 1443488376
[Tue Mar 22 00:24:10 2022] pgmajfault 9734703
[Tue Mar 22 00:24:10 2022] workingset_refault 9720216
[Tue Mar 22 00:24:10 2022] workingset_activate 2073753
[Tue Mar 22 00:24:10 2022] workingset_nodereclaim 0
[Tue Mar 22 00:24:10 2022] pgrefill 12141300
[Tue Mar 22 00:24:10 2022] pgscan 18087447
[Tue Mar 22 00:24:10 2022] pgsteal 9866147
[Tue Mar 22 00:24:10 2022] Tasks state (memory values in pages):
[Tue Mar 22 00:24:10 2022] [ pid ] uid tgid total_vm rss
pgtables_bytes swapents oom_score_adj name
[Tue Mar 22 00:24:10 2022] [ 2211] 0 2211 14228 230
159744 125 0 systemd
[Tue Mar 22 00:24:10 2022] [ 2691] 107 2691 11282 43
126976 71 -900 dbus-daemon
[Tue Mar 22 00:24:10 2022] [ 2729] 0 2729 62560 312
135168 87 0 rsyslogd
[Tue Mar 22 00:24:10 2022] [ 2731] 0 2731 9495 28
114688 89 0 systemd-logind
[Tue Mar 22 00:24:10 2022] [ 2730] 0 2730 6998 17
98304 44 0 cron
[Tue Mar 22 00:24:10 2022] [ 3025] 0 3025 20295 27
135168 172 0 master
[Tue Mar 22 00:24:10 2022] [ 3029] 101 3029 20824 26
163840 170 0 qmgr
[Tue Mar 22 00:24:10 2022] [ 13677] 101 13677 20812 192
155648 0 0 pickup
[Tue Mar 22 00:24:10 2022] [ 2915] 0 2915 17488 30
176128 162 -1000 sshd
[Tue Mar 22 00:24:10 2022] [ 2762] 0 2762 3164 0
65536 32 0 agetty
[Tue Mar 22 00:24:10 2022] [ 2761] 0 2761 3164 1
69632 32 0 agetty
[Tue Mar 22 00:24:10 2022] [ 2763] 0 2763 3164 1
73728 31 0 agetty
[Tue Mar 22 00:24:10 2022] [ 21053] 0 21053 1069 17
53248 0 0 apt.systemd.dai
[Tue Mar 22 00:24:10 2022] [ 21057] 0 21057 1069 31
53248 0 0 apt.systemd.dai
[Tue Mar 22 00:24:10 2022] [ 21065] 0 21065 17753 2552
180224 0 0 apt-get
[Tue Mar 22 00:24:10 2022] [ 21068] 0 21068 9475 110
110592 0 0 systemd-journal
[Tue Mar 22 00:24:10 2022]
oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=ns,mems_allowed=0-1,oom_memcg=/lxc/101,task_memcg=/lxc/101/ns,task=apt-get,pid=21065,uid=0
[Tue Mar 22 00:24:10 2022] Memory cgroup out of memory: Killed process
21065 (apt-get) total-vm:71012kB, anon-rss:10208kB, file-rss:0kB,
shmem-rss:0kB, UID:0 pgtables:176kB oom_score_adj:0
[Tue Mar 22 00:24:10 2022] oom_reaper: reaped process 21065 (apt-get),
now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
On 22/03/2022 14:55, Adam Weremczuk wrote:
Hi all,
I run a tiny and lightweight Debian 9.9 LXC container on Proxmox 6.2-6.
It has 512 MB of memory and 512 MB of swap assigned and typically
needs 50-100 MB to operate.
Last year I started seeing about half of swap being used with very
little use of RAM.
I then made the following changes:
/etc/sysctl.d/60-my-swappiness.conf
vm.swappiness=10
/etc/sysctl.conf
vm.swappiness=10
and rebooted.
The container was running like that for several months until this
morning when its core service (dhcp) started failing.
I logged in to investigate and noticed 100% of swap being used with
maybe 10-20% of RAM in use.
Before I had time to look into details the container crashed (powered
off).
I'll probably try to get rid of swap entirely as an experiment to see
what happens.
Unless somebody has any better ideas and hints?
Regards,
Adam
