Hi Mario,

I'm having the same problems.  I tried building libmlx4 from source today,
and it failed.  could you give me more detail about what commands you issued
to build from sourc?

On Thu, Feb 10, 2011 at 2:04 PM, Mario Lang <ml...@debian.org> wrote:

> Package: libmlx4-1
> Version: 1.0-1
> Severity: important
>
> On a freshly upgraded Squeeze-based HPC Cluster I am getting the
> following error message from openmpi's mpirun when it tries
> to use the installed infiniband interconnect (mlx4 based cards):
>
> libibverbs: Warning: couldn't load driver 'mlx4':
> /usr/lib/libmlx4-rdmav2.so: sybol ibv_cmd_reg_xrc_rcv_qp, version
> IBVERBS_1.1 not defined in file libibverbs.so.1 with link time reference
>
> (I used "mpirun hpcc", in case you want to reproduce.
>  But you will have to have a mlx4 card installed to actually trigger the
>  issue.)
>
> Rebuilding libmlx4 from source (apt-get source libmlx4 +
> dpkg-buildpackage) and installing the resulting libmlx4-1 binary package
> fixes this problem.
>
> --
> CYa,
>  ⡍⠁⠗⠊⠕ | Debian Developer <URL:http://debian.org/>
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>
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