I am not entirely sure if this is 100%ly related to this bug, but let me tell you my story here (contains another workaround):
I was also experiencing the problem of frequently having my files owned by 4294967294. Setup is Ubuntu 14.04 with automounted nfs4/kerberos homes, the NFS server is running Debian Wheezy. The problem was not existing with the previously used Ubuntu 13.10, so I began investigating and tried almost everything I found (which is mostly documented here), ranging from setting sysctl values to installing the kernel patch posted here. However, nothing did help, so I decided to debug via /proc/keys: While I still had the problem, /proc/keys (as seen by root) showed keys like this: 0094f999 I--Q--- 1 15s 3b010000 0 0 id_legacy uid:user@fqdn: 5 Note worthing is the remaining time of 15 seconds, shortly thereafter the problem occured for me and /proc/keys looked like this: 0094f999 I--Q--- 1 expd 3b010000 0 0 id_legacy uid:user@fqdn: 5 The key was "expired" and there was no new one in the list. So I issued "nfsidmap -v -c" (which did repair the situation everytime I have tried) and voilà: 5482b3a I--Q--- 1 9m 3b010000 0 0 id_legacy uid:user@fqdn: 5 I had a fresh key with a lifetime of ~ 10 minutes. But listen up, now comes the final workaround which has "fixed" the problem for about 3 or 4 days now: # apt-get install keyutils # restart idmapd # nfsidmap -v -c And now the keys do no longer expire: 2014218e I--Q--- 1 perm 3b010000 0 0 id_resolv uid:user@fqdn: 5 As already mentioned, this is working since several days now without any issues, my stress-test to check this is by the way: somedir$ for i in $(seq 100000); do touch $i;sleep 0.2;done somedir$ while (true); do ls -lR | grep 4294967294;done I still do not know exactly why installing keyutils has solved the issue or why this package was not previously installed as a dependency, but hey, it is a workaround at least for me and maybe others. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1124250 Title: Partially incorrect uid mapping with nfs4/idmapd/ldap-auth To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1124250/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
