IPFire went down last night, can't find cause

Hi all,
having here the same log entries from the OOM killer log

Sep 15 19:29:50 ipfire kernel: openvpn-authent invoked oom-killer: gfp_mask=0x1100dca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO), order=0, oom_score_adj=0
Sep 15 19:29:50 ipfire kernel: oom_kill_process.cold+0xb/0x10
Sep 15 19:29:50 ipfire kernel: [  pid  ]   uid  tgid total_vm      rss pgtables_bytes swapents oom_score_adj name
Sep 15 19:29:50 ipfire kernel: oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/,task=openvpn-authent,pid=12228,uid=0
Sep 15 19:29:50 ipfire kernel: Out of memory: Killed process 12228 (openvpn-authent) total-vm:1177692kB, anon-rss:854540kB, file-rss:1252kB, shmem-rss:0kB, UID:0 pgtables:2300kB oom_score_adj:0

Sep 15 19:48:30 ipfire kernel: Out of memory: Killed process 12614 (openvpn-authent) total-vm:1876516kB, anon-rss:1438396kB, file-rss:68kB, shmem-rss:0kB, UID:0 pgtables:3624kB oom_score_adj:0

and the memory graph at this time

whereby it seems that ‘openvpn-authent’ process reaches the OOM scores limit and invokes the kernel OOM but this should not causes IPFire to get down since the highest scored processes will be suspended/killed…

Nevertheless the OOM seems a bit strange to me ???

Best,

Erik

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