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  1. Lustre
  2. LU-4755

ASSERTION( req->rq_reqbuf_len >= msgsize ) failed when using 4MB RPC

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    • 13084

    Description

      After ran "lctl set_param osc.*.max_pages_per_rpc=4M", we ran 4k random write test with IOR and easily hit this problem.

      After some test, we found that the biggest value of msgsize is 16384 for bulk write, while req->rq_reqbuf_len is only 8192.

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          is related to

          Improvement - An improvement or enhancement to an existing feature or task. LU-7181 Submitting random writes using 4MB RPC

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Activity

            [LU-4755] ASSERTION( req->rq_reqbuf_len >= msgsize ) failed when using 4MB RPC
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-7181 [ LU-7181 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to DDN-12 [ DDN-12 ]
            pjones Peter Jones made changes -
            Fix Version/s New: Lustre 2.5.3 [ 11100 ]
            Labels Original: mq314 patch New: patch
            pjones Peter Jones made changes -
            Labels Original: patch New: mq314 patch
            jlevi Jodi Levi (Inactive) made changes -
            Fix Version/s New: Lustre 2.7.0 [ 10631 ]
            Fix Version/s Original: Lustre 2.6.0 [ 10595 ]
            jlevi Jodi Levi (Inactive) made changes -
            Resolution New: Fixed [ 1 ]
            Status Original: Open [ 1 ] New: Resolved [ 5 ]
            jlevi Jodi Levi (Inactive) made changes -
            Fix Version/s New: Lustre 2.6.0 [ 10595 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to DDN-26 [ DDN-26 ]
            adilger Andreas Dilger made changes -
            Link Original: This issue is related to DDN-34 [ DDN-34 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to DDN-34 [ DDN-34 ]

            People

              cliffw Cliff White (Inactive)
              lixi Li Xi (Inactive)
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              Dates

                Created:
                Updated:
                Resolved: