Re: wrong atime created by NFS clients (Mac OX 10.5 and 10.6).
Re: wrong atime created by NFS clients (Mac OX 10.5 and 10.6).
- Subject: Re: wrong atime created by NFS clients (Mac OX 10.5 and 10.6).
- From: Jim Luther <email@hidden>
- Date: Fri, 24 Sep 2010 14:46:29 -0700
You should ask this question on the file systems group list: email@hidden
On Sep 21, 2010, at 9:05 PM, 林 智子 wrote:
> We have iMac computers in classrooms, and they are running as an NFS client.
> We have found that the wrong access time (atime) is created by Mac OS 10.5
> and 10.6.
>
> A file that is opened by using "O_CREAT|O_EXCL" on the NFS-mounted directory
> will have the wrong atime. For example, the year will appear as 1920 or 2037
> depending on the IP address of the NFS client.
>
> This problem can also be found with Solaris NFS server and EMC Celerra.
>
> The following program will create a file having the wrong atime on an
> NFS-mounted directory:
>
> -------------------
> #include <fcntl.h>
> #include <stdlib.h>
> #include <string.h>
> #include <stddef.h>
>
> main() {
>
> int fd;
>
> /* O_EXCL option will cause wrong atime */
> fd = open("AIZU", O_CREAT | O_EXCL | O_RDWR, 0644);
> close(fd);
> exit(0);
> }
> -------------------
>
> The phenomenon is quite similar to the following problems on FreeBSD reported in 2001:
> http://www.mail-archive.com/email@hidden/msg22084.html
>
> If anyone knows a solution to this problem, we would greatly appreciate your advice. Thanks in advance.
>
> ----
> Tomoko Hayashi
> The University og Aizu
> email@hidden
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