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  1. Lustre
  2. LU-1646

mounting lustre oops on older kernels

Details

    • Bug
    • Resolution: Duplicate
    • Minor
    • None
    • Lustre 2.1.2
    • None
    • sles10sp4
    • 3
    • 6362

    Description

      in lustre 2.1 and up, the lustre_fill_super() was changed to expect the anonymous pointer to be of the type struct lustre_mount_data2. however, the ifdef for lustre_get_sb() for kernels < 2.6.18 was not updated. the attached patch seems to fix things but you might run into trouble when nfs exporting from these old kernels since lmd_mnt cannot be filled in for these older kernels.

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          is related to

          Technical task - A technical task. LU-1718 fix Lustre NFS re-export for 3.0+ kernels

          • Major - Major loss of function.
          • Resolved

          Activity

            [LU-1646] mounting lustre oops on older kernels
            pjones Peter Jones added a comment -

            ok thanks James!

            pjones Peter Jones added a comment - ok thanks James!
            simmonsja James A Simmons added a comment -

            The patch from LU-812 that solves this problem has been landed to b2_1. This ticket can be closed.

            simmonsja James A Simmons added a comment - The patch from LU-812 that solves this problem has been landed to b2_1. This ticket can be closed.
            simmonsja James A Simmons added a comment -

            Chas can you test both patches. Also if you can please try a NFS export on one of your clients with lustre.

            simmonsja James A Simmons added a comment - Chas can you test both patches. Also if you can please try a NFS export on one of your clients with lustre.
            simmonsja James A Simmons added a comment -

            Also besides patch http://review.whamcloud.com/#change,3661 from LU-812 you will need LU-1718 for NFS export which has the patch at http://review.whamcloud.com/#change,3840.

            simmonsja James A Simmons added a comment - Also besides patch http://review.whamcloud.com/#change,3661 from LU-812 you will need LU-1718 for NFS export which has the patch at http://review.whamcloud.com/#change,3840 .
            bogl Bob Glossman (Inactive) added a comment -

            back port to b2_1
            http://review.whamcloud.com/#change,3661

            bogl Bob Glossman (Inactive) added a comment - back port to b2_1 http://review.whamcloud.com/#change,3661
            chas3 chas williams - CONTRACTOR added a comment -

            since you cant even mount lustre on really old kernels, i dont think anyone is using the nfs export feature. so this seems fine to me.

            chas3 chas williams - CONTRACTOR added a comment - since you cant even mount lustre on really old kernels, i dont think anyone is using the nfs export feature. so this seems fine to me.
            bogl Bob Glossman (Inactive) added a comment -

            chas,
            Is it OK if we disable NFS export in 2.1.x for really old kernels? Can you possibly work around that restriction by using 1.8.x with such old kernels, at least until we have a fix from LU-1718 available?

            bogl Bob Glossman (Inactive) added a comment - chas, Is it OK if we disable NFS export in 2.1.x for really old kernels? Can you possibly work around that restriction by using 1.8.x with such old kernels, at least until we have a fix from LU-1718 available?

            People

              bogl Bob Glossman (Inactive)
              chas chas@cmf.nrl.navy.mil
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              Dates

                Created:
                Updated:
                Resolved: