I had to blacklist the module rpcsec_gss_krb5 on all Trusty machines to get NFS working at aceptable speeds again. Therefore I added the following line:
blacklist rpcsec_gss_krb5 to the following file: /etc/modprobe.d/blacklist.conf After a reboot everything was fine. Other comments here describe that blacklisting IPV6 would help as well. I see three options: 1) we have all misconfigured our NFS servers (to which the previous Ubuntu releases had a tolerance) 2) there is a bug in the pre-configuration of NFS or other modules in Trusty 3) there is a bug somewhere in the binaries Given this bug report over at RedHat: https://bugzilla.redhat.com/show_bug.cgi?format=multiple&id=1001934 with a link to Linux bugs: http://article.gmane.org/gmane.linux.nfs/60081 indicates that there is/was a bug in the Linux kernel which was then fixed. Did that fix make it into Trusty's kernel? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1270445 Title: slow NFS4 without "NEED_GSSD=yes" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/1270445/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
