Added APT history of updated packages ** Description changed:
System: Description: Ubuntu 14.04.5 LTS Release: 14.04 Version signature: Ubuntu 4.4.0-75.96~14.04.1-generic 4.4.59 + Using NFS-common and NFS-kernel-server version 1:1.2.8-6ubuntu1.2 before kernel update and after. - Using NFS-common and NFS-kernel-server version 1:1.2.8-6ubuntu1.2 before - kernel update and after. - After an update from linux-image-generic-lts-xenial:amd64 4.4.0.64.50 to version 4.4.0.75.62, our NFS server refuses any exclusive file locks after every night. Symptoms are that NFS clients cannot execute programs that use exclusive file locks (e.g. cradle), if using a UI like Ubuntu Desktop, the whole UI is stuck. However files can still be accessed and created via shell on a client through nfs. + After an update of a few packages (list attached), our NFS server refuses exclusive file locks after about 24h of runtime. Symptoms are that NFS clients cannot execute programs that use exclusive file locks (e.g. gradle), if using a UI like Ubuntu Desktop, the whole UI is stuck. However files can still be accessed and created via shell on a client through nfs. Following log is produced on a client that mounts nfs: May 10 00:46:23 irminen kernel: [2972685.514114] lockd: server pranger OK May 10 00:47:24 irminen kernel: [2972746.611297] lockd: server pranger not responding, still trying The nfs server produces following log: May 8 22:30:22 pranger kernel: [6267842.076551] Btrfs loaded May 9 04:16:02 pranger kernel: [6288582.711415] lockd: cannot monitor client May 9 04:17:02 pranger kernel: [6288642.871345] lockd: cannot monitor client May 9 04:18:03 pranger kernel: [6288703.031317] lockd: cannot monitor client May 9 04:19:03 pranger kernel: [6288763.191282] lockd: cannot monitor client May 9 04:20:03 pranger kernel: [6288823.351247] lockd: cannot monitor client May 9 04:21:03 pranger kernel: [6288883.511292] lockd: cannot monitor client May 9 04:22:03 pranger kernel: [6288943.671215] lockd: cannot monitor client May 9 04:23:03 pranger kernel: [6289003.831189] lockd: cannot monitor client Restarting the NFS Server does not resolve the issue, I had to reboot the server completely. After one day running the same problem appears again. + + Mounted on 14.04 and 16.04 machines via + pranger:/srv/home /home nfs nfsvers=3 0 + + More info in Comment #7 (https://bugs.launchpad.net/ubuntu/+source/nfs- + utils/+bug/1689777/comments/7) ** Attachment added: "aptHistory.log" https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/1689777/+attachment/4875513/+files/aptHistory.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1689777 Title: NFS lockd error cannot monitor client To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/1689777/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
