runc with terminal true fails to start the terminal

[rajasec]

When I try to runc, it gave the following error on sh.
sudo ./runc run test
/bin/sh: 0: 3: Invalid argument
Currently I have changed the limits to 10.
"rlimits": [
{
"type": "RLIMIT_NOFILE",
"hard": 10,
"soft": 10
}
],
2 things which I observed:

The moment I changed to hard & soft to 11, things expected to work. Able to enter to the sh shell.
One more observation, the failure happened only for sh, when I change to bash, it works

When the failure happens, I tried via exec command, same error
/bin/sh: 0: 3: Invalid argument

[cyphar]

I presume that it's because sh opens that many files, and so if you limit it enough it won't work? I'm not exactly sure why it gives you an EINVAL rather than EBUSY but this looks to me like it's working as-intended.