Public bug reported:
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\xffffffffm 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.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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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\xffffffffm 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.
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