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Subject: Re: [OMPI devel] Problem with multiple identical entries in ~/.openmpi/mca-params.conf
From: Nathan Hjelm (hjelmn_at_[hidden])
Date: 2013-09-20 18:03:02


I will look into this.

-Nathan

On Fri, Sep 20, 2013 at 05:49:41PM -0400, Vallee, Geoffroy R. wrote:
> Hi,
>
> I found a very unexpected behavior with r29217:
>
> % cat ~/.openmpi/mca-params.conf
> #pml_base_verbose=0
> pml_base_verbose=0
>
> % mpicc -o helloworld helloworld.c
>
> Then if i update the mca-params.conf to have two identical entries, i have segfaults:
>
> % cat ~/.openmpi/mca-params.conf
> pml_base_verbose=0
> pml_base_verbose=0
>
> % mpicc -o helloworld helloworld.c
> [node0:23157] *** Process received signal ***
> [node0:23157] Signal: Segmentation fault (11)
> [node0:23157] Signal code: Address not mapped (1)
> [node0:23157] Failing at address: 0x7f4812770100
> ^C
>
> Note that the compilation hangs. Also note that i have the exact same problem when running an MPI application that was successfully compiled:
>
> % cat ~/.openmpi/mca-params.conf
> pml_base_verbose=0
> #pml_base_verbose=0
>
> % mpirun -np 2 ./helloworld
> Hello, World (node0)
> Hello, World (node0)
>
> % mpirun -np 2 ./helloworld
> Hello, World (node0)
> Hello, World (node0)
> [node0:23201] *** Process received signal ***
> [node0:23201] Signal: Segmentation fault (11)
> [node0:23201] Signal code: Address not mapped (1)
> [node0:23201] Failing at address: 0x7f5a8f632c80
> [node0:23202] *** Process received signal ***
> [node0:23202] Signal: Segmentation fault (11)
> [node0:23202] Signal code: Address not mapped (1)
> [node0:23202] Failing at address: 0x7f1436605650
> ^C[node0:23199] *** Process received signal ***
> [node0:23199] Signal: Segmentation fault (11)
> [node0:23199] Signal code: Address not mapped (1)
> [node0:23199] Failing at address: 0x7f9917dd55f0
>
> The problem occurs during opal_finalize() and MCA tries to clean up some variables. Sorry i did not have the time to get a full trace.
>
> Best regards,
>
>
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