I dug into this a bit and think the patch wasn't quite complete, so I modified
the approach to ensure this race condition gets resolved in every scenario.
Hopefully, r32643 takes care of it for you.
On Aug 29, 2014, at 1:08 AM, Gilles Gouaillardet
<gilles.gouaillar...@iferc.org> wrote:
> Ralph and all,
>
> The following trivial test hangs
> /* it hangs at least 99% of the time in my environment, 1% is a race
> condition and the program behaves as expected */
>
> mpirun -np 1 --mca btl self /bin/false
>
> same behaviour happen with the following trivial but MPI program :
>
> #include <mpi.h>
>
> int main (int argc, char *argv[]) {
> MPI_Init(&argc, &argv);
> MPI_Finalize();
> return 1;
> }
>
> The attached patch fixes the hang (e.g. the program nicely abort with
> the correct error message)
>
> i did not commit it since i am not confident at all
>
> could you please review it ?
>
> Cheers
>
> Gilles
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