Bug 2322073

Summary: Fatal error in internal_Barrier
Product: [Fedora] Fedora Reporter: Christoph Junghans <junghans>
Component: mpichAssignee: Zbigniew Jędrzejewski-Szmek <zbyszek>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 42CC: zbyszek
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Hardware: s390x   
OS: Linux   
URL: https://github.com/icl-utk-edu/heffte/issues/59
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Last Closed: 2025-08-13 15:51:26 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Christoph Junghans 2024-10-28 02:13:15 UTC 
A simple mpi program like:
```
 int me, nranks;
  MPI_Comm_rank(MPI_COMM_WORLD, &me);
  MPI_Comm_size(MPI_COMM_WORLD, &nranks);

  for (int i=0; i<nranks; i++) {
    if (me == i)
      std::cout << "hello from rank: " << me << std::endl;
    MPI_Barrier(MPI_COMM_WORLD);
  }
```

fails to run on s390x

Reproducible: Always
Comment 1 Aoife Moloney 2025-02-26 13:13:53 UTC 
This bug appears to have been reported against 'rawhide' during the Fedora Linux 42 development cycle.
Changing version to 42.