I intentionally layered these filesystems on a build client machine in order to avoid having to rework things with respect to MAKEOBJDIRPREFIX, but it turns out this isn't possible with memory disks mounted on NFS. Example: Client: # uname -a FreeBSD mina3010.west.isilon.com 10.0-CURRENT FreeBSD 10.0-CURRENT #1: Sat Apr 20 07:51:00 PDT 2013 root@mina3010.west.isilon.com:/usr/obj/usr/src/sys/ISI-GENERIC amd64 # stat -f %d /mnt/onefs.3/obj/ 973143811 # stat -f %d /mnt/onefs.3/src/ 973143811 # mount | grep /mnt gran-tourismo:/home/gcooper/svn on /mnt (nfs, asynchronous) /dev/md42 on /mnt/onefs.3/obj (ufs, local, soft-updates) This however functions as I would expect with memory disks mounted on ZFS: Client/Server: # uname -a FreeBSD gran-tourismo.west.isilon.com 10.0-CURRENT FreeBSD 10.0-CURRENT #2 r+ba9afe9: Fri Apr 19 20:29:10 PDT 2013 gcooper@gran-tourismo.west.isilon.com:/usr/obj/usr/src/sys/GRAN-TOURISMO amd64 # mkdir foo; mdmfs -s 100m md4 foo load: 12.79 cmd: mdmfs 43756 [tx->tx_quiesce_done_cv] 2.29r 0.00u 0.00s 0% 196k # stat -f %d $PWD/foo/ 124 # stat -f %d $PWD 1152244014 There are some VFS layering issues and dot-dot lookup issues with md(4)/NFS that really need to be resolved, because really the device numbers returned for both paths should be different. tempfs works BTW in place of md(4): # umount /mnt/onefs.3/obj # mdconfig -d -u 42 # mount -o size=$(( 100 * 1024 * 1024 )) -t tmpfs tmpfs /mnt/onefs.3/obj # stat -f %d /mnt/onefs.3/obj/ 2264989444 # stat -f %d /mnt/onefs.3/src 973143811 How-To-Repeat: 1. Mount an NFS share on CURRENT from a CURRENT NFS server. 2. Create a directory on the share. 3. Mount a memory disk on the directory on the share [using mdmfs]. 4. Run stat -f %d on the directory on the share and the share itself. The values should be different.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 I can't reproduce this with -HEAD (r249777M). % sudo mount -o async undermydesk:/home/delphij /mnt % sudo mdmfs -s 1g md /mnt/base % mount |grep /mnt build:/tank/home/delphij on /mnt (nfs, asynchronous) /dev/md0 on /mnt/base (ufs, local, soft-updates) % stat -f %d /mnt/freebsd /mnt/base 973143814 172 Cheers, - -- Xin LI <delphij@delphij.net> https://www.delphij.net/ FreeBSD - The Power to Serve! Live free or die -----BEGIN PGP SIGNATURE----- iQEcBAEBCgAGBQJRdym5AAoJEG80Jeu8UPuzynUIAJMBS5YOamJRMxa7R8Xhbcnp n9maaa7sU+oNJY06fKj24NBh9OsNATLhuQ+yfpp2rUmgiVE0FeBhNMK0CZ0V4sNG ur2QzEz8VJOwcY4brNzzWld6j+EjohC/sE1JgOgkscHY9blJL8oTIjvedWWXzaLV 8/qDlzo79gRtBsIxKsvp0ywDuj3QOBh8MrpJq1KBNpySrt/5DDJ6Lpl14JCO20n+ 5Ohfn338xF1EnBpZpKXcUnsESqBKQcwNTQbPN7dLG6YhMrGcO+wj6UO9Vg45Dape pMrKUAFmZr8kc6dW9YSl5xN4o8z8vIvkAx/1DMTcpYrnP+Mg0vwSJFmGsOHAeSA= =b+n2 -----END PGP SIGNATURE-----
On Tue, Apr 23, 2013 at 5:39 PM, Xin Li <delphij@delphij.net> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA512 > > I can't reproduce this with -HEAD (r249777M). What's the NFS server version and what's the NFS client version? I assume that they're not the same machine? Thanks! -Garrett > % sudo mount -o async undermydesk:/home/delphij /mnt > % sudo mdmfs -s 1g md /mnt/base > % mount |grep /mnt > build:/tank/home/delphij on /mnt (nfs, asynchronous) > /dev/md0 on /mnt/base (ufs, local, soft-updates) > % stat -f %d /mnt/freebsd /mnt/base > 973143814 > 172 > > Cheers, > - -- > Xin LI <delphij@delphij.net> https://www.delphij.net/ > FreeBSD - The Power to Serve! Live free or die > -----BEGIN PGP SIGNATURE----- > > iQEcBAEBCgAGBQJRdym5AAoJEG80Jeu8UPuzynUIAJMBS5YOamJRMxa7R8Xhbcnp > n9maaa7sU+oNJY06fKj24NBh9OsNATLhuQ+yfpp2rUmgiVE0FeBhNMK0CZ0V4sNG > ur2QzEz8VJOwcY4brNzzWld6j+EjohC/sE1JgOgkscHY9blJL8oTIjvedWWXzaLV > 8/qDlzo79gRtBsIxKsvp0ywDuj3QOBh8MrpJq1KBNpySrt/5DDJ6Lpl14JCO20n+ > 5Ohfn338xF1EnBpZpKXcUnsESqBKQcwNTQbPN7dLG6YhMrGcO+wj6UO9Vg45Dape > pMrKUAFmZr8kc6dW9YSl5xN4o8z8vIvkAx/1DMTcpYrnP+Mg0vwSJFmGsOHAeSA= > =b+n2 > -----END PGP SIGNATURE-----
For bugs matching the following conditions: - Status == In Progress - Assignee == "bugs@FreeBSD.org" - Last Modified Year <= 2017 Do - Set Status to "Open"