Subject: Re: linux-next: arm32: beagleboard x15: WARNING: CPU: 0 PID: 0 at /usr/src/kernel/kernel/cgroup/cgroup.c:1969 cgroup_setup_root+0x36c/0x4e8

From: Tejun Heo <[email-masked]>
Date: Thu, 14 Nov 2019 14:42:13 -0800

Hello, Naresh.

On Thu, Nov 14, 2019 at 11:02:53AM +0530, Naresh Kamboju wrote:
> [    0.015402] WARNING: CPU: 0 PID: 0 at /usr/src/kernel/kernel/cgroup/cgroup.c:1969
> cgroup_setup_root+0x36c/0x4e8
...
> [    0.015726] [<c053ac48>] (cgroup_setup_root) from [<c1c2a260>]
> (cgroup_init+0x108/0x560)

So, that's saying that the initial kernfs_node ino allocation returned
something other than 1.  Hmmm... x86_32 works fine.  What does the
following say?

# mkdir -p /tmp/cgroup2
# mount -t cgroup2 none /tmp/cgroup2
# ls -lid /tmp/cgroup2

Thanks.

-- 
tejun