OpenWrt 21.02.2, r16495-bf0c965af0 problems with samba4

Hey guys,

i got a several OXnas updated to latest openwrt and getr this now with drive mounted if i try to copy files via samba4

[ 465.125135] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/,task=smbd,pid=1647,uid=65534
[ 465.125186] Out of memory: Killed process 1647 (smbd) total-vm:33640kB, anon-rss:2396kB, file-rss:524kB, shmem-rss:704kB, UID:65534 pgtables:38kB oom_score_adj:0
[ 465.150041] oom_reaper: reaped process 1647 (smbd), now anon-rss:0kB, file-rss:0kB, shmem-rss:704kB
root@NAS3:~# uname -a
Linux NAS3 5.4.179 #0 SMP Wed Feb 16 20:29:10 2022 armv6l GNU/Linux

root@NAS3:~# free
total used free shared buff/cache available
Mem: 121944 23148 87540 3524 11256 66828
Swap: 0 0 0

As you ca see there is enough RAM free but the samba process crashes with oom...

Seems to be a problem in the build, with other versions i never got such problems