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[Bug 1026139] Re: NFS client readdir loop

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Fernando Rodriguez, thank you for reporting this and helping make Ubuntu better. Oneiric reached EOL on May 9, 2013.
Please see this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We were wondering if this is still an issue in a supported release? If
so, could you please test for this with the latest development release
of Ubuntu? ISO images are available from http://cdimage.ubuntu.com
/daily-live/current/ .

If it remains an issue, could you please run the following command in
the development release from a Terminal
(Applications->Accessories->Terminal), as it will automatically gather
and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the kernel in the mainline kernels archive directory daily folder. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.11-rc4

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

If you are unable to test the mainline kernel, please comment as to why specifically you were unable to test it and add the following tags:
kernel-unable-to-test-upstream
kernel-unable-to-test-upstream-VERSION-NUMBER

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.

Helpful bug reporting tips:
https://help.ubuntu.com/community/ReportingBugs

** Description changed:

  I get several "NFS: directory xxx contains a readdir loop.Please contact
  your server vendor.  Offending cookie:xxx"  on the client side of an
  NFS4 mount.  I have tried several different kernels 3.0.xx with the same
  result (currently using .   I am using autofs.  Issue seems to be
  related to the large number of files (with a high rotation as well).  ls
  | wc -l  gives >100,000 files.
  
  Bug is intermittent, software tries to access the files with success
  some times, and failure other times (exact same usage pattern).   The
  software fails with " Too many levels of symbolic links".   No errors
  appear on the server log.  It appears to be the same issue as reported
  here:  https://bugzilla.redhat.com/show_bug.cgi?id=790729
  
- uname -a
- Linux uruk 3.0.0-22-server #36-Ubuntu SMP Tue Jun 12 17:56:20 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
- 
- 
- Extra info:
- 
- 1.- lsb_release -rd
- Description:	Ubuntu 11.10
- Release:	11.10
- 
- 2.-apt-cache policy linux-image
- linux-image:
-   Installed: (none)
-   Candidate: 3.0.0.23.27
-   Version table:
-      3.0.0.23.27 0
-         500 http://gb.archive.ubuntu.com/ubuntu/ oneiric-updates/main amd64 Packages
-      3.0.0.22.26 0
-         500 http://security.ubuntu.com/ubuntu/ oneiric-security/main amd64 Packages
-      3.0.0.12.14 0
-         500 http://gb.archive.ubuntu.com/ubuntu/ oneiric/main amd64 Packages
- 
  3.- I expect the software to access the files and no readdir loop errors
  to occur
  
  4.- Software fails with  Too many levels of symbolic links, kernel logs
  NFS: directory xxx contains a readdir loop.Please contact your server
  vendor.  Offending cookie:xxx
  
- 
- I'll be happy to provide any additional info.
- --- 
+ ---
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1c', '/dev/snd/pcmC0D1p', '/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
  Card1.Amixer.info: Error: [Errno 2] No such file or directory
  Card1.Amixer.values: Error: [Errno 2] No such file or directory
  DistroRelease: Ubuntu 11.10
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=a153cd5b-145c-452e-9e03-894b90b6ac8a
  InstallationMedia: Ubuntu-Server 11.10 "Oneiric Ocelot" - Release amd64 (20111011)
  IwConfig:
-  lo        no wireless extensions.
-  
-  eth0      no wireless extensions.
-  
-  virbr0    no wireless extensions.
+  lo        no wireless extensions.
+ 
+  eth0      no wireless extensions.
+ 
+  virbr0    no wireless extensions.
  MachineType: Gigabyte Technology Co., Ltd. GA-880GA-UD3H
  Package: linux (not installed)
  ProcEnviron:
-  LANGUAGE=en_GB:en
-  LANG=en_GB.UTF-8
-  SHELL=/bin/bash
+  LANGUAGE=en_GB:en
+  LANG=en_GB.UTF-8
+  SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-22-server root=/dev/mapper/hostname-root ro
  ProcVersionSignature: Ubuntu 3.0.0-22.36-server 3.0.33
  RelatedPackageVersions:
-  linux-restricted-modules-3.0.0-22-server N/A
-  linux-backports-modules-3.0.0-22-server  N/A
-  linux-firmware                           1.60.1
+  linux-restricted-modules-3.0.0-22-server N/A
+  linux-backports-modules-3.0.0-22-server  N/A
+  linux-firmware                           1.60.1
  RfKill: Error: [Errno 2] No such file or directory
  Tags:  oneiric
  Uname: Linux 3.0.0-22-server x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm admin cdrom dialout kvm libvirtd lpadmin plugdev sambashare
  dmi.bios.date: 11/24/2010
  dmi.bios.vendor: Award Software International, Inc.
  dmi.bios.version: F7
  dmi.board.name: GA-880GA-UD3H
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: x.x
  dmi.chassis.type: 3
  dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
  dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF7:bd11/24/2010:svnGigabyteTechnologyCo.,Ltd.:pnGA-880GA-UD3H:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-880GA-UD3H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
  dmi.product.name: GA-880GA-UD3H
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.

** Tags added: latest-bios-f7 needs-upstream-testing regression-
potential

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

** Summary changed:

- NFS client readdir loop 
+ [GA-880GA-UD3H] NFS client readdir loop

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1026139

Title:
  [GA-880GA-UD3H] NFS client readdir loop

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I get several "NFS: directory xxx contains a readdir loop.Please
  contact your server vendor.  Offending cookie:xxx"  on the client side
  of an NFS4 mount.  I have tried several different kernels 3.0.xx with
  the same result (currently using .   I am using autofs.  Issue seems
  to be related to the large number of files (with a high rotation as
  well).  ls | wc -l  gives >100,000 files.

  Bug is intermittent, software tries to access the files with success
  some times, and failure other times (exact same usage pattern).   The
  software fails with " Too many levels of symbolic links".   No errors
  appear on the server log.  It appears to be the same issue as reported
  here:  https://bugzilla.redhat.com/show_bug.cgi?id=790729

  3.- I expect the software to access the files and no readdir loop
  errors to occur

  4.- Software fails with  Too many levels of symbolic links, kernel
  logs  NFS: directory xxx contains a readdir loop.Please contact your
  server vendor.  Offending cookie:xxx

  ---
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1c', '/dev/snd/pcmC0D1p', '/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
  Card1.Amixer.info: Error: [Errno 2] No such file or directory
  Card1.Amixer.values: Error: [Errno 2] No such file or directory
  DistroRelease: Ubuntu 11.10
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=a153cd5b-145c-452e-9e03-894b90b6ac8a
  InstallationMedia: Ubuntu-Server 11.10 "Oneiric Ocelot" - Release amd64 (20111011)
  IwConfig:
   lo        no wireless extensions.

   eth0      no wireless extensions.

   virbr0    no wireless extensions.
  MachineType: Gigabyte Technology Co., Ltd. GA-880GA-UD3H
  Package: linux (not installed)
  ProcEnviron:
   LANGUAGE=en_GB:en
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-22-server root=/dev/mapper/hostname-root ro
  ProcVersionSignature: Ubuntu 3.0.0-22.36-server 3.0.33
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-22-server N/A
   linux-backports-modules-3.0.0-22-server  N/A
   linux-firmware                           1.60.1
  RfKill: Error: [Errno 2] No such file or directory
  Tags:  oneiric
  Uname: Linux 3.0.0-22-server x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm admin cdrom dialout kvm libvirtd lpadmin plugdev sambashare
  dmi.bios.date: 11/24/2010
  dmi.bios.vendor: Award Software International, Inc.
  dmi.bios.version: F7
  dmi.board.name: GA-880GA-UD3H
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: x.x
  dmi.chassis.type: 3
  dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
  dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF7:bd11/24/2010:svnGigabyteTechnologyCo.,Ltd.:pnGA-880GA-UD3H:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-880GA-UD3H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
  dmi.product.name: GA-880GA-UD3H
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.

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