This probably explains what happened to User Shares, but I don't know what caused the oom. Apr 16 18:17:26 UNRAID kernel: Out of memory: Kill process 8106 (shfs) score 3 or sacrifice child Apr 16 18:17:26 UNRAID kernel: Killed process 8106 (shfs) total-vm:2114960kB, anon-rss:62456kB, file-rss:4kB, shmem-rss:1928kB Apr 16 18:17:26 UNRAID kernel: oom_reaper: reaped process 8106 (shfs), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB