[Kernel-packages] [Bug 1240143] Re: NFS client reports a 'readdir loop' with a corrupt name
** Changed in: linux (Fedora) Status: Unknown => Invalid ** Changed in: linux (Fedora) Importance: Unknown => Critical -- 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/1240143 Title: NFS client reports a 'readdir loop' with a corrupt name Status in linux package in Ubuntu: Fix Released Status in linux package in Debian: Fix Released Status in linux package in Fedora: Invalid Bug description: We have an NFS server running on a RedHat system. One particular directory contains many, many RPMs (96850). It reports that there is a 'readdir loop', and the loop in question contains corrupted names. I assume the name corruption is happening on the Linux kernel end, not the server end: "NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: foo-bar-11.0flange-12345.AB5.x86_64.rpmmpmpmmT53 has duplicate cookie 1110018804" "NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: widget-wiggle-11.0-12356.AB5.x86_64.rpmpm.AB5.x86_64.rpm\xm has duplicate cookie 353422206" Since the corrupted names are never displayed in an 'ls' of the directory (even whilst the problem is occurring), I assume that this is a presentation problem in the warning message. Unfortunately the problem had gone away by the time I tried using tcpdump to capture the on-the-wire data. jfletcher@gromit:~$ cat /proc/version Linux version 3.2.0-29-generic (buildd@allspice) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 jfletcher@gromit:~$ lsb_release -rd Description: Ubuntu 12.04.3 LTS Release: 12.04 The lspci information would not be useful - the system was running under KVM, with a single interface. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1240143/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1240143] Re: NFS client reports a 'readdir loop' with a corrupt name
I am closing this bug because it is fixed in recent kernel versions. ** Changed in: linux (Ubuntu) Status: Confirmed => Fix Released -- 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/1240143 Title: NFS client reports a 'readdir loop' with a corrupt name Status in linux package in Ubuntu: Fix Released Status in linux package in Debian: Fix Released Status in linux package in Fedora: Unknown Bug description: We have an NFS server running on a RedHat system. One particular directory contains many, many RPMs (96850). It reports that there is a 'readdir loop', and the loop in question contains corrupted names. I assume the name corruption is happening on the Linux kernel end, not the server end: "NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: foo-bar-11.0flange-12345.AB5.x86_64.rpmmpmpmmT53 has duplicate cookie 1110018804" "NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: widget-wiggle-11.0-12356.AB5.x86_64.rpmpm.AB5.x86_64.rpm\xm has duplicate cookie 353422206" Since the corrupted names are never displayed in an 'ls' of the directory (even whilst the problem is occurring), I assume that this is a presentation problem in the warning message. Unfortunately the problem had gone away by the time I tried using tcpdump to capture the on-the-wire data. jfletcher@gromit:~$ cat /proc/version Linux version 3.2.0-29-generic (buildd@allspice) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 jfletcher@gromit:~$ lsb_release -rd Description: Ubuntu 12.04.3 LTS Release: 12.04 The lspci information would not be useful - the system was running under KVM, with a single interface. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1240143/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1240143] Re: NFS client reports a 'readdir loop' with a corrupt name
** Bug watch added: Debian Bug tracker #714974 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=714974 ** Also affects: linux (Debian) via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=714974 Importance: Unknown Status: Unknown ** Bug watch added: Red Hat Bugzilla #739222 https://bugzilla.redhat.com/show_bug.cgi?id=739222 ** Also affects: linux (Fedora) via https://bugzilla.redhat.com/show_bug.cgi?id=739222 Importance: Unknown Status: Unknown -- 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/1240143 Title: NFS client reports a 'readdir loop' with a corrupt name Status in “linux” package in Ubuntu: Confirmed Status in “linux” package in Debian: Unknown Status in “linux” package in Fedora: Unknown Bug description: We have an NFS server running on a RedHat system. One particular directory contains many, many RPMs (96850). It reports that there is a 'readdir loop', and the loop in question contains corrupted names. I assume the name corruption is happening on the Linux kernel end, not the server end: NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: foo-bar-11.0flange-12345.AB5.x86_64.rpmmpmpmmT53 has duplicate cookie 1110018804 NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: widget-wiggle-11.0-12356.AB5.x86_64.rpmpm.AB5.x86_64.rpm\xm has duplicate cookie 353422206 Since the corrupted names are never displayed in an 'ls' of the directory (even whilst the problem is occurring), I assume that this is a presentation problem in the warning message. Unfortunately the problem had gone away by the time I tried using tcpdump to capture the on-the-wire data. jfletcher@gromit:~$ cat /proc/version Linux version 3.2.0-29-generic (buildd@allspice) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 jfletcher@gromit:~$ lsb_release -rd Description: Ubuntu 12.04.3 LTS Release: 12.04 The lspci information would not be useful - the system was running under KVM, with a single interface. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1240143/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1240143] Re: NFS client reports a 'readdir loop' with a corrupt name
** Changed in: linux (Debian) Status: Unknown = Fix Released -- 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/1240143 Title: NFS client reports a 'readdir loop' with a corrupt name Status in “linux” package in Ubuntu: Confirmed Status in “linux” package in Debian: Fix Released Status in “linux” package in Fedora: Unknown Bug description: We have an NFS server running on a RedHat system. One particular directory contains many, many RPMs (96850). It reports that there is a 'readdir loop', and the loop in question contains corrupted names. I assume the name corruption is happening on the Linux kernel end, not the server end: NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: foo-bar-11.0flange-12345.AB5.x86_64.rpmmpmpmmT53 has duplicate cookie 1110018804 NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: widget-wiggle-11.0-12356.AB5.x86_64.rpmpm.AB5.x86_64.rpm\xm has duplicate cookie 353422206 Since the corrupted names are never displayed in an 'ls' of the directory (even whilst the problem is occurring), I assume that this is a presentation problem in the warning message. Unfortunately the problem had gone away by the time I tried using tcpdump to capture the on-the-wire data. jfletcher@gromit:~$ cat /proc/version Linux version 3.2.0-29-generic (buildd@allspice) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 jfletcher@gromit:~$ lsb_release -rd Description: Ubuntu 12.04.3 LTS Release: 12.04 The lspci information would not be useful - the system was running under KVM, with a single interface. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1240143/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1240143] Re: NFS client reports a 'readdir loop' with a corrupt name
The readdir loop problem seems to be fairly widely known ( http://lwn.net/Articles/544520/ ), and an upgrade to the latest 12.04 kernel (3.2.0-60-generic) on the nfs server seems to have fixed the problem for us. -- 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/1240143 Title: NFS client reports a 'readdir loop' with a corrupt name Status in “linux” package in Ubuntu: Confirmed Bug description: We have an NFS server running on a RedHat system. One particular directory contains many, many RPMs (96850). It reports that there is a 'readdir loop', and the loop in question contains corrupted names. I assume the name corruption is happening on the Linux kernel end, not the server end: NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: foo-bar-11.0flange-12345.AB5.x86_64.rpmmpmpmmT53 has duplicate cookie 1110018804 NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: widget-wiggle-11.0-12356.AB5.x86_64.rpmpm.AB5.x86_64.rpm\xm has duplicate cookie 353422206 Since the corrupted names are never displayed in an 'ls' of the directory (even whilst the problem is occurring), I assume that this is a presentation problem in the warning message. Unfortunately the problem had gone away by the time I tried using tcpdump to capture the on-the-wire data. jfletcher@gromit:~$ cat /proc/version Linux version 3.2.0-29-generic (buildd@allspice) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 jfletcher@gromit:~$ lsb_release -rd Description: Ubuntu 12.04.3 LTS Release: 12.04 The lspci information would not be useful - the system was running under KVM, with a single interface. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1240143/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1240143] Re: NFS client reports a 'readdir loop' with a corrupt name
We have an NFS server running on ubuntu 12.04, and after upgrading one client from 10.04 to 12.04 the other day we are hitting a similar (possibly the same) problem. The server setup has not been touched for months. We have a directory with a lot of .xml files (~1009700 of them). Running an ls on this directory from another client running 12.04 initially produced this message: [423354.265296] NFS: directory xxx/OLD contains a readdir loop.Please contact your server vendor. The file: 900015.xml\xffa1;s0z\xffda\xffa0\xffa0\xff91]c\x03\xff88\x\xml\xffa3\xffa3\x1b\xfff1' \xffb0\xff91]c\x03\xff88\x\xml#q%G\xff8c\xffa0\xffc0\xff91]c\x03\xff88\x\xxml\xffc4\xffe3\xff9f\xffa8\xffd0\xff91\xff91]c\x03\x\x0f\xffbf\xfff0\xff91]c\x03\xff88\x\xxml}\xff9e\xff88\xffc3P has duplicate cookie 514419709fml\xffbb\xffb6\xfff2 Doing an cp -a on this file, removing the original file and moving the copy back in place fixes the corrupted filename, but the duplicate cookie problem remains. Running a find | sort on the server and on the clients and diffing the output reveals no difference with 10.04 clients, but with the 12.04 client (and the problematic file moved away) we get ~10 duplicate entries in the output on the 12.04 client. Our 10.04-clients seem unaffected. I've tried a 12.04 client with kernel 3.8 which shows the same problem. I've tried mounting with different nfs versions, and the only change was that with nfsvers=2 I managed to list around ~700k files before it broke (as opposed to ~300k files otherwise)). It also breaks rsync with rsync: readdir(/the-path/OLD): Too many levels of symbolic links (40) Server information: --- Linux xxx 3.2.0-39-generic #62-Ubuntu SMP Thu Feb 28 00:28:53 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux /dev/drbd0 on /data type ext3 (rw,noatime) ii nfs-common1:1.2.5-3ubuntu3.1 NFS support files common to client and server ii nfs-kernel-server 1:1.2.5-3ubuntu3.1 support for NFS kernel server -- 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/1240143 Title: NFS client reports a 'readdir loop' with a corrupt name Status in “linux” package in Ubuntu: Confirmed Bug description: We have an NFS server running on a RedHat system. One particular directory contains many, many RPMs (96850). It reports that there is a 'readdir loop', and the loop in question contains corrupted names. I assume the name corruption is happening on the Linux kernel end, not the server end: NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: foo-bar-11.0flange-12345.AB5.x86_64.rpmmpmpmmT53 has duplicate cookie 1110018804 NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: widget-wiggle-11.0-12356.AB5.x86_64.rpmpm.AB5.x86_64.rpm\xm has duplicate cookie 353422206 Since the corrupted names are never displayed in an 'ls' of the directory (even whilst the problem is occurring), I assume that this is a presentation problem in the warning message. Unfortunately the problem had gone away by the time I tried using tcpdump to capture the on-the-wire data. jfletcher@gromit:~$ cat /proc/version Linux version 3.2.0-29-generic (buildd@allspice) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 jfletcher@gromit:~$ lsb_release -rd Description: Ubuntu 12.04.3 LTS Release: 12.04 The lspci information would not be useful - the system was running under KVM, with a single interface. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1240143/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1240143] Re: NFS client reports a 'readdir loop' with a corrupt name
Kernel bug remains. Realised that jsalisbury had said that I should mark it as confirmed, and I hadn't. ** Changed in: linux (Ubuntu) Status: Expired = Confirmed -- 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/1240143 Title: NFS client reports a 'readdir loop' with a corrupt name Status in “linux” package in Ubuntu: Confirmed Bug description: We have an NFS server running on a RedHat system. One particular directory contains many, many RPMs (96850). It reports that there is a 'readdir loop', and the loop in question contains corrupted names. I assume the name corruption is happening on the Linux kernel end, not the server end: NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: foo-bar-11.0flange-12345.AB5.x86_64.rpmmpmpmmT53 has duplicate cookie 1110018804 NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: widget-wiggle-11.0-12356.AB5.x86_64.rpmpm.AB5.x86_64.rpm\xm has duplicate cookie 353422206 Since the corrupted names are never displayed in an 'ls' of the directory (even whilst the problem is occurring), I assume that this is a presentation problem in the warning message. Unfortunately the problem had gone away by the time I tried using tcpdump to capture the on-the-wire data. jfletcher@gromit:~$ cat /proc/version Linux version 3.2.0-29-generic (buildd@allspice) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 jfletcher@gromit:~$ lsb_release -rd Description: Ubuntu 12.04.3 LTS Release: 12.04 The lspci information would not be useful - the system was running under KVM, with a single interface. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1240143/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1240143] Re: NFS client reports a 'readdir loop' with a corrupt name
[Expired for linux (Ubuntu) because there has been no activity for 60 days.] ** Changed in: linux (Ubuntu) Status: Incomplete = Expired -- 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/1240143 Title: NFS client reports a 'readdir loop' with a corrupt name Status in “linux” package in Ubuntu: Expired Bug description: We have an NFS server running on a RedHat system. One particular directory contains many, many RPMs (96850). It reports that there is a 'readdir loop', and the loop in question contains corrupted names. I assume the name corruption is happening on the Linux kernel end, not the server end: NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: foo-bar-11.0flange-12345.AB5.x86_64.rpmmpmpmmT53 has duplicate cookie 1110018804 NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: widget-wiggle-11.0-12356.AB5.x86_64.rpmpm.AB5.x86_64.rpm\xm has duplicate cookie 353422206 Since the corrupted names are never displayed in an 'ls' of the directory (even whilst the problem is occurring), I assume that this is a presentation problem in the warning message. Unfortunately the problem had gone away by the time I tried using tcpdump to capture the on-the-wire data. jfletcher@gromit:~$ cat /proc/version Linux version 3.2.0-29-generic (buildd@allspice) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 jfletcher@gromit:~$ lsb_release -rd Description: Ubuntu 12.04.3 LTS Release: 12.04 The lspci information would not be useful - the system was running under KVM, with a single interface. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1240143/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1240143] Re: NFS client reports a 'readdir loop' with a corrupt name
Tested with kernel 3.12 as advised and we still see the problem. ** Tags added: kernel-bug-exists-upstream -- 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/1240143 Title: NFS client reports a 'readdir loop' with a corrupt name Status in “linux” package in Ubuntu: Incomplete Bug description: We have an NFS server running on a RedHat system. One particular directory contains many, many RPMs (96850). It reports that there is a 'readdir loop', and the loop in question contains corrupted names. I assume the name corruption is happening on the Linux kernel end, not the server end: NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: foo-bar-11.0flange-12345.AB5.x86_64.rpmmpmpmmT53 has duplicate cookie 1110018804 NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: widget-wiggle-11.0-12356.AB5.x86_64.rpmpm.AB5.x86_64.rpm\xm has duplicate cookie 353422206 Since the corrupted names are never displayed in an 'ls' of the directory (even whilst the problem is occurring), I assume that this is a presentation problem in the warning message. Unfortunately the problem had gone away by the time I tried using tcpdump to capture the on-the-wire data. jfletcher@gromit:~$ cat /proc/version Linux version 3.2.0-29-generic (buildd@allspice) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 jfletcher@gromit:~$ lsb_release -rd Description: Ubuntu 12.04.3 LTS Release: 12.04 The lspci information would not be useful - the system was running under KVM, with a single interface. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1240143/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1240143] Re: NFS client reports a 'readdir loop' with a corrupt name
Missing log files were intentional; these are company systems and I am not allowed by policy to upload arbitrary files without review. Testing to follow, but as the problem is sporadic, I'm not sure that we can say categorically that it is a fixed or not. -- 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/1240143 Title: NFS client reports a 'readdir loop' with a corrupt name Status in “linux” package in Ubuntu: Incomplete Bug description: We have an NFS server running on a RedHat system. One particular directory contains many, many RPMs (96850). It reports that there is a 'readdir loop', and the loop in question contains corrupted names. I assume the name corruption is happening on the Linux kernel end, not the server end: NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: foo-bar-11.0flange-12345.AB5.x86_64.rpmmpmpmmT53 has duplicate cookie 1110018804 NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: widget-wiggle-11.0-12356.AB5.x86_64.rpmpm.AB5.x86_64.rpm\xm has duplicate cookie 353422206 Since the corrupted names are never displayed in an 'ls' of the directory (even whilst the problem is occurring), I assume that this is a presentation problem in the warning message. Unfortunately the problem had gone away by the time I tried using tcpdump to capture the on-the-wire data. jfletcher@gromit:~$ cat /proc/version Linux version 3.2.0-29-generic (buildd@allspice) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 jfletcher@gromit:~$ lsb_release -rd Description: Ubuntu 12.04.3 LTS Release: 12.04 The lspci information would not be useful - the system was running under KVM, with a single interface. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1240143/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1240143] Re: NFS client reports a 'readdir loop' with a corrupt name
We have an NFS server running on a RedHat system. ... which we access through an Ubuntu 12.04 LTS system. It is on this system that the NFS client problems occur. Sorry, that wasn't especially clear :-( -- 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/1240143 Title: NFS client reports a 'readdir loop' with a corrupt name Status in “linux” package in Ubuntu: New Bug description: We have an NFS server running on a RedHat system. One particular directory contains many, many RPMs (96850). It reports that there is a 'readdir loop', and the loop in question contains corrupted names. I assume the name corruption is happening on the Linux kernel end, not the server end: NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: foo-bar-11.0flange-12345.AB5.x86_64.rpmmpmpmmT53 has duplicate cookie 1110018804 NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: widget-wiggle-11.0-12356.AB5.x86_64.rpmpm.AB5.x86_64.rpm\xm has duplicate cookie 353422206 Since the corrupted names are never displayed in an 'ls' of the directory (even whilst the problem is occurring), I assume that this is a presentation problem in the warning message. Unfortunately the problem had gone away by the time I tried using tcpdump to capture the on-the-wire data. jfletcher@gromit:~$ cat /proc/version Linux version 3.2.0-29-generic (buildd@allspice) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 jfletcher@gromit:~$ lsb_release -rd Description: Ubuntu 12.04.3 LTS Release: 12.04 The lspci information would not be useful - the system was running under KVM, with a single interface. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1240143/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1240143] Re: NFS client reports a 'readdir loop' with a corrupt name
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.12 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as Confirmed. Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-rc5-saucy/ ** Changed in: linux (Ubuntu) Importance: Undecided = Medium -- 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/1240143 Title: NFS client reports a 'readdir loop' with a corrupt name Status in “linux” package in Ubuntu: Incomplete Bug description: We have an NFS server running on a RedHat system. One particular directory contains many, many RPMs (96850). It reports that there is a 'readdir loop', and the loop in question contains corrupted names. I assume the name corruption is happening on the Linux kernel end, not the server end: NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: foo-bar-11.0flange-12345.AB5.x86_64.rpmmpmpmmT53 has duplicate cookie 1110018804 NFS: directory Development/rpms contains a readdir loop.Please contact your server vendor. The file: widget-wiggle-11.0-12356.AB5.x86_64.rpmpm.AB5.x86_64.rpm\xm has duplicate cookie 353422206 Since the corrupted names are never displayed in an 'ls' of the directory (even whilst the problem is occurring), I assume that this is a presentation problem in the warning message. Unfortunately the problem had gone away by the time I tried using tcpdump to capture the on-the-wire data. jfletcher@gromit:~$ cat /proc/version Linux version 3.2.0-29-generic (buildd@allspice) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 jfletcher@gromit:~$ lsb_release -rd Description: Ubuntu 12.04.3 LTS Release: 12.04 The lspci information would not be useful - the system was running under KVM, with a single interface. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1240143/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
