Public bug reported: I am testing the development branch of Bionic Beaver. With the latest update to kernel 4.15.0-13 my nfs-mounts in a university network are broken.
> sudo mount -vvv -t nfs4 my_server:/my/share /nfs -osoft,sec=krb5 > mount.nfs4: timeout set for Mon Mar 26 16:29:56 2018 > mount.nfs4: trying text-based options > 'soft,sec=krb5,nfsvers=4.0,addr=10.162.229.2,clientaddr=10.152.249.189' > mount.nfs4: mount(2): Input/output error > mount.nfs4: mount system call failed > kernel: NFS: nfs4_discover_server_trunking unhandled error -5. Exiting with > error EIO > kernel: RPC: couldn't encode RPC header, exit EIO > kernel: gss_marshal: gss_get_mic FAILED (851968) Known good version: linux-image-4.15.0-10 I think it is the same bug like in https://bugzilla.redhat.com/show_bug.cgi?id=1558977 The bug was introduced in the mainline kernel 4.15.4 with commit "[46e8d06e423c4f35eac7a8b677b713b3ec9b0684] crypto: hash - prevent using keyed hashes without setting key" This bug should be fixed before releasing ubuntu18.04 by either reverting the commit or using a fixed mainline kernel. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: kerberos nfs rpc -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1759791 Title: NFS + sec=krb5 is broken To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759791/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
