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    SubjectFile permission problem with NFSv3 and 2.5.20-dj4
    Hi,

    Looks like there is a problem with NFSv3 and file permissions in the DJ
    kernels.

    A file that is marked as executable will lose its executable flag whenever
    it is written to. I suspect the proble lies in the changes to the NFS file
    info cacheing in the DJ kernels at least since 2.5.20-dj1 (I was unable
    to find where this change occured in the changelog).

    Here is one example:

    Enter NFS mount (in this case, the NFS server is a FreeBSD 4.6 machine)
    Compile a simple program; gcc hello.c -o hello
    Result: hello has the following permissions: -rw-r--r--
    Modify the permissions manually; chmod 755 hello
    Result: hello has the following permissions: -rwxr-xr-x

    Here is another:

    Enter NFS mount
    Compile a simple program; gcc hello.c -o hello
    Result: hello has the following permissions: -rw-r--r--
    Unmount the NFS mount; umount /home
    Remount the NFS mount; mount server:/home /home
    Result: hello has the following permissions: -rwxr-xr-x

    Here is the final one:

    Enter NFS mount, find a file with executable permissions;
    Edit a file; vi whahoo.sh
    Save and close the file
    Results: file has the following permissions: -rw-r--r--

    So, in the process of writing a file, its executable bits are lost. Can
    someone help? The problem is not present with vanilla Linux-2.5.20.

    Regards,
    - Brent Cook

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