Ubuntu
nfs-utils package

  1. Bug #1270445
  2. Comment #27

Comment 27 for bug 1270445

Revision history for this message
Andre (ajx) wrote :

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?