Raghav Gururajan 写道：
> Efraim Flashner tried to reproduce the error but resulted in 
> negative
> outcome. For Efraim, the libvirt was trying to read
> '/sys/fs/cgroup/unified/cgroup.controllers' and worked

Is that so, Efraim?  I didn't get that from your message[0].

Kind regards,

T G-R

[0]: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=36634#10