>Number: 162591
>Category: kern
>Synopsis: cross-filesystem nullfs does not work as expected
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Tue Nov 15 18:50:06 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator: Moritz Wilhelmy
>Release: FreeBSD 9.0-RC2 amd64
>Organization:
>Environment:
System: FreeBSD phallus.wzff.de 9.0-RC2 FreeBSD 9.0-RC2 #14: Wed Nov 9 10:27:26
UTC 2011 r...@phallus.wzff.de:/usr/obj/usr/src/sys/PHALLUS amd64
>Description:
mounting a tree with mount_nullfs does not work as expected if the
filesystem has other nullfs filesystems mounted below. The files from the tree
itself show up, but not the files from mountpoints under the tree. See below
for
an example.
Expected behaviour would be that all mountpoints from the nullfs mount show up
on the tree that it's mounted on.
>How-To-Repeat:
My original use-case:
# mkdir -p testdir shares/testdir somejail/shares
# touch testdir/{moo,cow}
# ls testdir
cow moo
# mount_nullfs -o ro testdir shares/testdir
# mount_nullfs -o ro shares somejail/shares
# ls shares/testdir/
cow moo
# ls somejail/shares/testdir/
# ^^^^ no files here
>Fix:
Unknown
>Release-Note:
>Audit-Trail:
>Unformatted:
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