On Fri, Aug 02, 2019 at 11:05:02AM +0200, Pierre Labastie via blfs-dev wrote:
> On 02/08/2019 04:54, Ken Moffat via blfs-dev wrote:
> >
> > However, I had a bit of fun and games getting mountcgroupfs to
> > I'd got CONFIG_CGROUPS CONFIG_INOTIFY_USER and CONFIG_FHANDLE
[...]
> >
> > CONFIG_MEMCFG=Y
> > CONFIG_CGROUP_RDMA=Y
> > CONFIG_CGROUP_DEVICE=y
> >
> > Rebooted, and that was good enough. The question is, do I actually
> > _need_ all of these ?
> >
>
> From my investigations, no... And the whole mountcgroupfs bootscript can be
> omitted, because elogind takes care of mounting those. OTOH, my investigations
> are limited to using startx with the default xinit clients...
>
> I mentioned this error (with less details) in the "xorg failure" thread. If no
> CONFIG_CGROUP_XXX is selected, the command for mounting the v1 cgroup fs
> returns an error, and the command for creating the "unified" dir fails too,
> because the fs is not mounted. Actually, from man cgroups(7), it is said that:
> "Note that on many systems, the v1 controllers are automatically mounted
> under /sys/fs/cgroup; in particular, systemd(1) automatically creates
> such mount points."
> Now, the question is whether elogind does those mounts too. But one thing is
> sure: without the mountcgroupfs script, whether or not some CONFIG_CGROUP_XXX
> is defined, Xorg runs.
>
> Pierre
Hmm, I thought it was all getting clearer, and that when I could
find time to rebuild the kernel a few times I would find out how
many of those are necessary. But running a DM is not something I've
done for ages (although I recall that sddm shutdowns were always
messy because the messages were on a different tty).
I guess I might as well check which options are necessary for the
mountcgroupfs script.
ĸen
--
One pill makes you larger, And one pill makes you small.
And the ones that mother gives you, Don't do anything at all.
Go ask Alice, When she's ten feet tall.
-- Jefferson Airplane, White Rabbit
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