bin/131113: mount(8) hangs on attempt to remount as rw

[jh at FreeBSD.org]

Synopsis: mount(8) hangs on attempt to remount as rw

State-Changed-From-To: open->feedback
State-Changed-By: jh
State-Changed-When: Fri Dec 31 10:54:36 UTC 2010
State-Changed-Why: 
I couldn't reproduce this on 8.1.

This works for me:

# mount -t ext2fs -o ro /dev/ada0s1 /mnt
# mount
.
.
/dev/ada0s1 on /mnt (ext2fs, local, read-only)
# mount -u -o rw /mnt
# mount
.
.
/dev/ada0s1 on /mnt (ext2fs, local)

If you still see the problem, please provide exact commands to reproduce
the hang.

http://www.freebsd.org/cgi/query-pr.cgi?pr=131113