[Pkg-openmpi-maintainers] Bug#845594: openmpi-bin: MPI_Comm_spawn fails if blt_tcp_if_include is set to lo

[Thibaut Paumard]

Control: retitle 845594 "openmpi: lo interface broken in the tcp btl"

Hi,

Actually the regression can also be demonstrated without using
MPI_Comm_spawn with:
 mpirun -np 2 --mca btl_tcp_if_include lo --mca btl tcp,self ./slave

The above command runs fine under jessie (openmpi 1.6.5-9.1) but fails
under sid.

For the record my test environment is a production machine for jessie
and a virtualbox virtual machine for sid.

Kind regards, Thibaut.