FWIW, I can do "cat" . I get a single number seemingly followed by an infinite stream of 0s (I tried wc -l, but did not want to wait very long and killed it). Here is what it looks like, if limited by "head": root@gdansk ~ # cat '/sys/fs/cgroup/unified/machine.slice/machine-qemu\x2d1\x2dkartuzy\x2dspice.scope/cgroup.procs' | head 10649 0 0 0 0 0 0 0 0 0 root@gdansk ~ # PID 10649 is indeed qemu process running the virtual machine in question: root@gdansk ~ # ps lw 10649 F UID PID PPID PRI NI VSZ RSS WCHAN STAT TTY TIME COMMAND 6 0 10649 1 20 0 4815836 60252 - Sl ? 2:56 /usr/bin/qemu-system-x86_64 -name guest=kartuzy-spice,process=qemu:kartuzy-spice,debug-threads=on -S -object se Sorry about taint by ZFS, but there is nothing I can do, it is my root filesystem. Since I am the only user of the package in question I could cheat and replace the license for the build of the ZFS module, but I do not see how that might help. B. -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
