7.1rc3 - containers broken on MIPSBE

running “/container start 0” fails to start the container,

[admin@RouterOS] > /container start 0

[admin@RouterOS] > /container print
 0 file=openwrt.tar name="53eb7612-d048-48b4-b6c8-3b2f373d2369" tag="openwrt-raw:latest" os="linux" arch="mips" interface=veth1 cmd="/bin/init" mounts="" dns="" 
   hostname="openwrt" logging=yes status=stopped

and nothing is added to the logs. However, looking at supout:

@container@
2021.09.10-21:16:48.16@0: Starting container app.
2021.09.10-21:16:48.18@0: Running app...
2021.09.11-17:00:17.22@0: clone: Invalid argument
2021.09.11-17:00:17.22@0: child spawn failed
2021.09.11-17:01:09.20@0: clone: Invalid argument
2021.09.11-17:01:09.20@0: child spawn failed

Based on a little bit of poking, I believe the kernel is built without CONFIG_UTS_NS, although I obviously can’t be sure

What device are you trying to run containers on?

A fix will be issued in the next RouterOS release, thank You for reporting this.

RB450G