On Thu, May 1, 2014 at 2:58 PM, Steve Dickson <SteveD@xxxxxxxxxx> wrote: > > > On 05/01/2014 12:21 PM, Craig Yoshioka wrote: >> >> This is a followup to a previous post I made. >> >> With Frank Filz’s helpful suggestions I was able to gather better data. >> >> 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) > This should take care of the problem: > > commit 3226c06989186d9cd60ba146df4e2898fee5047b > Author: Steve Dickson <steved@xxxxxxxxxx> > Date: Wed Apr 30 11:14:22 2014 -0400 > > libnfsidmap: id_as_chars() fails zero value ids. > > Root has a zero value id which is valid and > should not be mapped to nfsnobody > > Signed-off-by: Steve Dickson <steved@xxxxxxxxxx> > > steved. >> >> 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@xxxxxxxxx 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 setting is the distro default) >> Does the following help on the client? echo N >/sys/module/nfs/parameters/nfs4_disable_idmapping -- Trond Myklebust Linux NFS client maintainer, PrimaryData trond.myklebust@xxxxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
