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[Luis Henriques <luis.henriques@xxxxxxxxxxxxx>]

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https://bugs.launchpad.net/bugs/1509666

Title:
  I cannot mount nfs shares from osx when using the new kernel

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I am running ubuntu server 64 bit 14.04 on my home server.
  The server shares some directories using NFS v4

  I have some apple macs (MBAs) that use the automount to mount the shared nfs directory. Previously, this had worked fine.
  My file /etc/auto_nfs contains the single line:
  /../Volumes/share	-fstype=nfs,noresvport	nfs://serv2_local:/export/share


  I updated to kernel 3.13.0-66 and the OSX machines would no long mount
  the NFS shares (see message below from /var/log/messages.log on the
  Mac):

  Oct 24 14:34:35 beethoven automountd[655]: NFS server serv2_local not
  responding

  Please see the list of modules loaded:
  Oct 24 14:26:36 serv2 kernel: [   36.402674] Modules linked in: quota_v2 quota_tree nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache dm_crypt rc_dvbsky(OX) xt_tcpudp xt_recent iptable_filter ip_tables x_tables snd_hda_codec_realtek dvbsky_m88rs6000(OX) snd_hda_intel snd_hda_codec kvm_amd snd_hwdep smipcie(OX) dvb_core(OX) kvm snd_pcm rc_core(OX) snd_page_alloc snd_timer snd soundcore serio_raw i2c_piix4 edac_core edac_mce_amd k10temp shpchp mac_hid parport_pc ppdev lp parport pata_acpi hid_generic usbhid radeon hid i2c_algo_bit ttm drm_kms_helper pata_atiixp ahci libahci atl1c drm wmi


  My other linux clients were able to mount the NFS share without difficulty. I have rolled the server back to the previous kernel (3.13.0-65-generic) and NFS works fine with the Macs. (Note that the problem exists with both my Macs, running OSX 10.10.5 and 10.11.1)
  --- 
  AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.13.0-66-generic.
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 2.14.1-0ubuntu3.16
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info: Error: [Errno 2] No such file or directory
  Card0.Amixer.values: Error: [Errno 2] No such file or directory
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=f0e7e97e-cfde-42f5-a6a8-33d670d4f6ad
  InstallationDate: Installed on 2015-07-25 (91 days ago)
  InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  IwConfig:
   lo        no wireless extensions.
   
   p5p1      no wireless extensions.
  MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
  Package: linux (not installed)
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-66-generic root=UUID=cba0a062-b757-496a-a056-c284b18f961b ro nomodset
  ProcVersionSignature: Ubuntu 3.13.0-66.108-generic 3.13.11-ckt27
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-66-generic N/A
   linux-backports-modules-3.13.0-66-generic  N/A
   linux-firmware                             1.127.15
  RfKill: Error: [Errno 2] No such file or directory
  Tags:  trusty
  Uname: Linux 3.13.0-66-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 10/02/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P1.30
  dmi.board.asset.tag: BC5FF4ED68C6
  dmi.board.name: 960GM-VGS3 FX
  dmi.board.vendor: ASRock
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.30:bd10/02/2013:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rn960GM-VGS3FX:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To Be Filled By O.E.M.
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: To Be Filled By O.E.M.

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