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  1. Lustre
  2. LU-9180

Upstream ko2iblnd does not work with map_on_demand <256

Details

    • Bug
    • Resolution: Fixed
    • Critical
    • None
    • Upstream
    • 3
    • 9223372036854775807

    Description

      I tried to set a map_on_demand = 32 (default for OPA) with an upstream Lustre build and run it on an MLX QDR set of system.  When I tried a bulk lnet-selftest test, it failed with this log:

      [ 1125.547100] LNetError: 22552:0:(o2iblnd_cb.c:1068:kiblnd_init_rdma()) RDMA is too large for peer 192.168.1.24@o2ib (131072), src size: 1048576 dst size: 1048576

      When I went back to a much older upstream build, 4.8rc2, the same test worked.  So, some porting from master to upstream seems to have not worked.  The same test works fine on master.

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          is related to

          Improvement - An improvement or enhancement to an existing feature or task. LU-9679 Prepare lustre for adoption into the linux kernel

          • Major - Major loss of function.
          • Resolved

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              wc-triage WC Triage
              doug Doug Oucharek (Inactive)
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                Created:
                Updated:
                Resolved: