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IMC tool is not mergeing properly already merged coverage files

sgaikwad

HI,

I have 9000 test cases so I am running tests in batch of 1000 with coverage enabled and merging them using imc batch command. Till this point it is working in fatastic way. But when I am trying to merge "already merged" coverage .icc , it is merging but coverage numbers are getting reduced comapred to older merged coverage number.

Do we have any limitation or rule how to merge?

IMC tool version : MDV1710

Thanks

Sushant

Parents

  • Hi Stephen,

    When I have generated coverage dump for 3000 tests and trying to merge them, it is failing with below error :

    # A fatal error has been detected by the Java Runtime Environment:
    #
    # SIGSEGV (0xb) at pc=0x00002b846436533e, pid=31471, tid=0x00002b8462e5f700
    #
    # JRE version: Java(TM) SE Runtime Environment (8.0_121-b13) (build 1.8.0_121-b13)
    # Java VM: Java HotSpot(TM) 64-Bit Server VM (25.121-b13 mixed mode linux-amd64 compressed oops)
    # Problematic frame:
    # V [libjvm.so+0x92233e]User defined signal 2

    When I am trying to merge less number of coverage dumo, it is working fine. Do we have any constraint on merging regarding number of sims?

    Thanks

    Sushant

Reply

  • Hi Stephen,

    When I have generated coverage dump for 3000 tests and trying to merge them, it is failing with below error :

    # A fatal error has been detected by the Java Runtime Environment:
    #
    # SIGSEGV (0xb) at pc=0x00002b846436533e, pid=31471, tid=0x00002b8462e5f700
    #
    # JRE version: Java(TM) SE Runtime Environment (8.0_121-b13) (build 1.8.0_121-b13)
    # Java VM: Java HotSpot(TM) 64-Bit Server VM (25.121-b13 mixed mode linux-amd64 compressed oops)
    # Problematic frame:
    # V [libjvm.so+0x92233e]User defined signal 2

    When I am trying to merge less number of coverage dumo, it is working fine. Do we have any constraint on merging regarding number of sims?

    Thanks

    Sushant

Children
  • in reply to sgaikwad

    Hi Sushant. The error message contains the words "User defined signal 2", indicating that something external to IMC has interfered and caused IMC to exit. Usually this would be your compute cluster (LSF, Grid Engine etc). I suspect that you haven't requested enough memory when submitting the job to your cluster, and IMC is hitting the limit.

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