Re: noisy selinux messages on tmpfs mount.

Dave Jones
2015-01-08T19:38:26Z

On Thu, Jan 08, 2015 at 02:34:57PM -0500, Paul Moore wrote:
> On Thursday, January 08, 2015 02:08:22 PM Dave Jones wrote:
> > systemd has started mounting a tmpfs in /run/user/<uid> every time a
> > session begins. So after ssh'ing into a box a number of times, dmesg
> > looks like this..
> >
> > [...] SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
> > [...] SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
>
> {snip}
>
> > What's a good solution to stopping this spew ? printk_once doesn't seem like
> > a good fit, in case someone is doing different labelling behaviours between
> > mounts.
> >
> > Could we only print it if the mount is being done with non-default behaviour
> > perhaps?
>
> I'm very curious to hear Stephen's opinion on the issue, but I wonder how much
> this would honestly impact us if we removed this message in the case where we
> mount the filesystem with a known labeling behavior.

It would help if I had cc'd Stephen's correct email address.
Stephen, for context: https://lkml.org/lkml/2015/1/8/468

I figured there would be pushback from removing it entirely, which is
why I didn't send the obvious patch.

Dave