Hello,

First just plain directory with mode=700:

drwx------   43 root     wheel        2048 Sep  7 22:24 /backups/

Then I mount filesystem under /backups:

/dev/sd0i on /backups type ffs (local, softdep)
drwxr-x---   43 root     wheel        2048 Sep  7 22:24 /backups/

The permissions changed, so far good because I've changed
the modes of the mounted volume to 750.

Then as a normal user belonging to 'wheel' I do:

$ ls -la /backups/
ls: /backups/..: Permission denied
[rest of the files are listed normally, including '.']

$ stat /backups/..
stat: /backups/..: Permission denied

Doing those as root is fine.

I asked my friend to reproduce this on Linux but
he was unable get any weird errors, therefore
I'm asking here. :-)

--
Antti Harri

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