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    SubjectRe: NFS on 2.6.0-test9:

    On 2003-11-03 13:42:35 Luke Driscoll wrote:

    >On a kernel 2.6.0-test9 as an NFS client I am having trouble
    >transferring data to and from NFS servers. It it extraordinarily
    >slow.  I receive the following information in dmesg:
    >
    >nfs warning: mount version older than kernel
    >nfs: server safe not responding, still trying

    You and me the same. Here's a message I sent to
    nfs@lists.sourceforge.net this Friday:

    --quote--
    xSubject: 2.6.0-test3-bk10-final regression getting out of hand
    xDate: Fri, 31 Oct 2003 21:48:51 +0100

    As reported in:
    http://marc.theaimsgroup.com/?l=linux-kernel&m=106195494828814&w=2
    I'm experiencing a serious NFS regression since 2.6.0-test3-bk10-final
    (bk-set determined now). Since that, along the road to 2.6.0-test9,
    something has gotten completely out of hand.

    cp -a /mnt/oden/etc .

    _2.6.0-test3-bk10_
    2 minutes

    _2.6.0-test3-bk10-final_
    3 minutes 47 seconds

    _2.6.0-test9_
    29 minutes 54 seconds

    Nothing has changed in hardware or setup, and the cp tests were done
    today. Not being a programmer I tried to delete individual patches in
    the bk-set, but couldn't find the exact breakage point.

    Erasing changes to:
    linux-2.6.0-test3-bk10/fs/nfs/dir.c
    No change.

    Erasing changes to:
    linux-2.6.0-test3-bk10/fs/nfs/nfsroot.c
    No change.

    Erasing changes to:
    linux-2.6.0-test3-bk10/include/linux/sunrpc/timer.h
    linux-2.6.0-test3-bk10/net/sunrpc/timer.c
    No change.

    Erasing changes to:
    linux-2.6.0-test3-bk10/net/sunrpc/clnt.c
    Doesn't compile.

    Erasing changes to:
    linux-2.6.0-test3-bk10/include/linux/sunrpc/xprt.h
    linux-2.6.0-test3-bk10/net/sunrpc/xprt.c
    Doesn't compile.

    Using TCP or DIRECTIO in -test9 makes no difference. Here's the
    relevant .config-section:

    #
    # Network File Systems
    #
    CONFIG_NFS_FS=y
    CONFIG_NFS_V3=y
    # CONFIG_NFS_V4 is not set
    # CONFIG_NFS_DIRECTIO is not set
    CONFIG_NFSD=y
    CONFIG_NFSD_V3=y
    # CONFIG_NFSD_V4 is not set
    # CONFIG_NFSD_TCP is not set
    CONFIG_LOCKD=y
    CONFIG_LOCKD_V4=y
    CONFIG_EXPORTFS=y
    CONFIG_SUNRPC=y
    # CONFIG_SUNRPC_GSS is not set
    # CONFIG_SMB_FS is not set
    # CONFIG_CIFS is not set
    # CONFIG_NCP_FS is not set
    # CONFIG_CODA_FS is not set
    # CONFIG_INTERMEZZO_FS is not set
    # CONFIG_AFS_FS is not set

    --unquote--

    Mvh
    Mats Johannesson
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