can not remount an FS read-only
Mikhail Teterin
mi at corbulon.video-collage.com
Fri Feb 18 14:46:48 GMT 2005
Hello!
My /opt filesystem (playing both LOCALBASE and X11BASE) is normally
mounted read-only (not so much for security even, as for safety).
When I add/remove ports, I remount it read-write:
mount -orw -u /opt
do, what I need and then remount it back `ro'.
This works most of the times, but sometimes, like today (after /opt was
"open" for some time), mount responds with EBUSY:
mount: /dev/da0s2f: Device busy
According to fstat, out of 134 files opened under /opt:
fstat | fgrep -c /opt
134
NONE is opened for writing:
fstat | fgrep /opt | grep -c 'w$'
0
Is there a bug in the open-file counter somewhere, or is fstat not
telling me the whole story? In the past, trying to force the read-only
mount (-f) caused quite a few processes to segfault (sometimes including
X-server).
Thanks!
-mi
P.S. I've seen this on both 4- and 5-stable.
More information about the freebsd-questions
mailing list