When starting lxd vm, the following error message appeared.
Thank you in advice.
lxc config show c701 --expanded please
Thank you @tomp
Please refer to the picture below.
free -m output may explain the out of memory.
Thank you @stgraber.
As you say, when i do free -m, u01’s total memory is allocated about 1GB.
And I set it as below.
lxc config set u01 limits.memory 8192MB
After setting as above, I checked again on u01 and confirmed that it had 8GB of memory.
I was aware that limits.memory is available only up to the maximum of the host’s total memory as defined by this value.
What I tested is nested vm.
host(notebook, ubuntu20.04)-vm(u01, ubuntu 20.04)-vm (c701, centos 7.8)
As you said before, i have confirmed that if vhost_vsock kernel module is supported, then becomes a nested vm.
Thank you again.