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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