Public bug reported: Description: Ubuntu 14.04.3 LTS Release: 14.04
nfs-kernel-server version 1:1.2.8-6ubuntu1.2 I have a system with ~1900 ZFS filesystems, which I am exporting over NFS. When one of these filesystems is mounted by a client rpc.mountd on the server climbs to 100% CPU. stracing rpc.mountd reveals that it is calling newfstat() for every device on the system addressed by every possible route for every export. (I've attached a fragment of the strace output.) This seems to be the problem described in this thread: http://www.spinics.net/lists/linux-nfs/msg40946.html and applying the patch at: http://www.spinics.net/lists/linux-nfs/msg41193.html fixed the problem for me. Could this patch be applied to the Ubuntu package, please? Owen ** Affects: nfs-utils (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1557507 Title: rpc.mountd high CPU usage To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/1557507/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs