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Out of memory errors detected on your server

Featured Replies

  • Community Expert
8 minutes ago, Zotarios said:

After updating to 7.0.1 it appears this error. I have 64GB of RAM with no VMs and few dockers, can't imagine what would the cause be...

zotarios-diagnostics-20250303-1334.zip 242.76 kB · 0 downloads

 

Looks like you have Plex transcoding to RAM, and multiple streams are running your system OOm

  • Author
1 hour ago, Michael_P said:

 

Looks like you have Plex transcoding to RAM, and multiple streams are running your system OOm

I have the Plex docker limited to 25GB of RAM. Only plex and qbittorrent use some amount of RAM but never more than 35GB out of 64GB...

--runtime=nvidia --memory=25G
  • Community Expert
51 minutes ago, Zotarios said:

I have the Plex docker limited to 25GB of RAM. Only plex and qbittorrent use some amount of RAM but never more than 35GB out of 64GB...

--runtime=nvidia --memory=25G

 

...OK, but it's killed it 3 times starting on back on the 1st with the last being at 12:29 yesterday so...

 

Mar  2 12:29:06 Zotarios kernel: [  pid  ]   uid  tgid total_vm      rss pgtables_bytes swapents oom_score_adj name
Mar  2 12:29:06 Zotarios kernel: [  20873]     0 20873      109        0    28672        0             0 s6-svscan
Mar  2 12:29:06 Zotarios kernel: [  21161]     0 21161       55        0    24576        0             0 s6-supervise
Mar  2 12:29:06 Zotarios kernel: [  21164]     0 21164       52        0    24576        0             0 s6-linux-init-s
Mar  2 12:29:06 Zotarios kernel: [  21198]     0 21198       55        0    24576        0             0 s6-supervise
Mar  2 12:29:06 Zotarios kernel: [  21200]     0 21200       55        0    24576        0             0 s6-supervise
Mar  2 12:29:06 Zotarios kernel: [  21201]     0 21201       55        0    24576        0             0 s6-supervise
Mar  2 12:29:06 Zotarios kernel: [  21202]     0 21202       55        0    24576        0             0 s6-supervise
Mar  2 12:29:06 Zotarios kernel: [  21222]     0 21222       52        0    24576        0             0 s6-ipcserverd
Mar  2 12:29:06 Zotarios kernel: [  21477]     0 21477     1835      160    53248        0             0 bash
Mar  2 12:29:06 Zotarios kernel: [  21496]     0 21496     1421       32    49152        0             0 sleep
Mar  2 12:29:06 Zotarios kernel: [3644454]    99 3644454  7343318  6169236 49897472        0             0 Plex Media Serv
Mar  2 12:29:06 Zotarios kernel: [3644504]    99 3644504    16382     8377   143360        0             0 Plex Script Hos
Mar  2 12:29:06 Zotarios kernel: [3644560]    99 3644560    16035     8098   143360        0             0 Plex Script Hos
Mar  2 12:29:06 Zotarios kernel: [3644719]    99 3644719    10725      480    94208        0             0 Plex Tuner Serv
Mar  2 12:29:06 Zotarios kernel: [3645595]    99 3645595  2243091    45438   581632        0             0 Plex Transcoder
Mar  2 12:29:06 Zotarios kernel: [3646274]    99 3646274  2244279    48306   598016        0             0 Plex Transcoder
Mar  2 12:29:06 Zotarios kernel: [3646796]    99 3646796      650      277    45056        0             0 EasyAudioEncode
Mar  2 12:29:06 Zotarios kernel: [3646901]    99 3646901  2243991    46613   573440        0             0 Plex Transcoder
Mar  2 12:29:06 Zotarios kernel: [3647491]    99 3647491    12825     2091   135168        0             0 Plex Transcoder
Mar  2 12:29:06 Zotarios kernel: [3652223]    99 3652223    14089     1715   147456        0             0 Plex Transcoder
Mar  2 12:29:06 Zotarios kernel: [3653741]    99 3653741    14687     2246   155648        0             0 Plex Transcoder
Mar  2 12:29:06 Zotarios kernel: oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=/,mems_allowed=0,oom_memcg=/docker/9aa73a6ac4ac029a8a5b2fe5e8319b94cc5623094e9cd30d992f3765e29ee251,task_memcg=/docker/9aa73a6ac4ac029a8a5b2fe5e8319b94cc5623094e9cd30d992f3765e29ee251,task=Plex Media Serv,pid=3644454,uid=99
Mar  2 12:29:06 Zotarios kernel: Memory cgroup out of memory: Killed process 3644454 (Plex Media Serv) total-vm:29373272kB, anon-rss:24667224kB, file-rss:244kB, shmem-rss:9476kB, UID:99 pgtables:48728kB oom_score_adj:0
Mar  2 12:29:09 Zotarios kernel: oom_reaper: reaped process 3644454 (Plex Media Serv), now anon-rss:136kB, file-rss:244kB, shmem-rss:36kB

 

 

 

  • 2 weeks later...
  • Author

Downgraded to 7.0.0 and the issue went away 

  • 1 month later...

I have noticed the same issue with my Plex instance and I don't think it has anything to do with unraid. I am on version 6.12.15 and still get the same error. I have only noticed it when recording a tv program and watching it live at the same time. I am assuming something about transcoding with the audio. It fills up the memory slowly until the limit I have set (16GB)

 

Apr 30 22:58:37 NASTower kernel: oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=3f8cc82a4753f22582e35c1899828212a266e48a78c1617f22d4746025a65279,mems_allowed=0,oom_memcg=/docker/3f8cc82a4753f22582e35c1899828212a266e48a78c1617f22d4746025a65279,task_memcg=/docker/3f8cc82a4753f22582e35c1899828212a266e48a78c1617f22d4746025a65279,task=Plex Media Serv,pid=25392,uid=99
Apr 30 22:58:37 NASTower kernel: Memory cgroup out of memory: Killed process 25392 (Plex Media Serv) total-vm:299332kB, anon-rss:65404kB, file-rss:40712kB, shmem-rss:4kB, UID:99 pgtables:604kB oom_score_adj:0

 

 

  • 3 weeks later...
  • Author

But if it has a max memory (16 GB in your case), it should never kill unraid OS processes as there's plenty of free memory available

  • 7 months later...
  • Community Expert
31 minutes ago, Zotarios said:

It keeps happening from time to time... is it still Plex's fault?

zotarios-diagnostics-20260105-1328.zip

Yep, it's hitting the limit on the container

Memory cgroup out of memory: Killed process 2086114 (Plex Media Serv)

  • Author

If it hits the docker limit, it doesn't mean it hits the system max ram usage, right? In that case, is it safe system-wide? Will it only kill some processes in the docker itself?

  • Community Expert
19 minutes ago, Zotarios said:

Will it only kill some processes in the docker itself?

As long as it's only the container limit that's hit yes.

  • Community Expert

You'll still need to reboot or FCP will warn you since it's in the log

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