[Debichem-devel] Bug#531419: mpicc segfaults when called by fakeroot

Jeff Squyres jsquyres at cisco.com
Fri Jun 5 18:48:28 UTC 2009


On Jun 5, 2009, at 2:39 PM, Jeff Squyres wrote:

> FWIW, debugging OMPI is easier if you tell OMPI to slurp all the  
> plugins into its libraries -- so there's no dlopen's and all the  
> plugins are physically located in libmpi.so (and friends).  You can  
> get better call stacks this way from corefiles, etc.


Oops!  I neglected to say that you can effect this behavior by  
specifying the "--disable-dlopen" flag to OMPI's configure.  This  
turns off our internal libltdl entirely (i.e., it doesn't even build)  
and simultaneously slurps all of our plugins up into their relevant  
libraries (e.g., libmpi.so, libopen-pal.so, etc.).

-- 
Jeff Squyres
Cisco Systems






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