Date: Thu, 01 May 2014 09:23:58 -0700 From: Craig Yoshioka <craigyk@me.com> To: freebsd-stable@freebsd.org Subject: problems with chown as root on nfs4 export Message-ID: <CC0E663B-B8F1-41C8-950B-AA949BA25F0A@me.com>
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I’ve posted this same email to the linux NFS mailing list since I think it might be client-side problem, but thought I might look for input here as well.
problem: when using chown as root on a nfs4 filesystem on newer linux releases file owners get sets to nobody.
the user type doesn’t seem to matter (/etc/passwd, LDAP, Samba4)
setup: Server is FreeBSD 10 system with NFSv4 share.
Server and clients are all configured with the same idmap domain
Network users have consistent uid/gid on server and clients
clients with older linux releases work OK (Ubuntu 12.04, CentOS 5 and 6)
clients with newer linux releases do not work ( Fedora 20, Ubuntu 14.04, Mint 16 )
clues:
1. working and non-working systems get to the same fchownat() system call with the same arguments (via strace).
example (identical on working and non-working client):
...
fchownat(AT_FDCWD, "/mnt/test", 11111, 4294967295, 0) = 0
close(1) = 0
close(2) = 0
close(4) = 0
exit_group(0) = ?
+++ exited with 0 +++
2. working system sends NFSV4 SETATTR request with owner set to: matlab@nimgs.com and non-working as 11111 (via wireshark)
3. I can’t rule out misconfiguration. but I’ve configured as identically as I could, and tried a lot of small vairations. these are my current settings (the pipefs settings are the distro defaults)
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