It's probably a visibility issue - check for an OMPI_DECLSPEC missing from the declaration of a symbol.
On Mar 5, 2010, at 11:40 AM, Leonardo Fialho wrote: > Yes, > > I renamed all references to Aurelien's componant name and removed all code > regarding to the component itself. There are only functions which returns > OMPI_SUCCESS. No other function is called. > > I'm debugging with LD_DEBUG=symbols, but the output is really huge! Probably > the error is in the mca_pml_v symbol: > > 19643: /home/lfialho/lib/openmpi/mca_vprotocol_receiver.so: error: > symbol lookup error: undefined symbol: mca_pml_v (fatal) > > Leonardo > > On Mar 5, 2010, at 7:35 PM, Ralph Castain wrote: > >> You said this component was a copy of Aurelien's component? Did you rename >> the critical elements (e.g., component, module) inside it to avoid name >> confusion? >> >> On Mar 5, 2010, at 11:27 AM, Leonardo Fialho wrote: >> >>> I see... but it is really strange because this module is clean, it does not >>> use nothing. This is the output of the nm command, I can't see any symbol >>> which is not available. >>> >>> [lfialho@aoclsb-clus openmpi]$ nm mca_vprotocol_receiver.so >>> 0000000000201208 a _DYNAMIC >>> 0000000000201408 a _GLOBAL_OFFSET_TABLE_ >>> w _Jv_RegisterClasses >>> 00000000002011e0 d __CTOR_END__ >>> 00000000002011d8 d __CTOR_LIST__ >>> 00000000002011f0 d __DTOR_END__ >>> 00000000002011e8 d __DTOR_LIST__ >>> 00000000000011d0 r __FRAME_END__ >>> 00000000002011f8 d __JCR_END__ >>> 00000000002011f8 d __JCR_LIST__ >>> 0000000000201640 A __bss_start >>> w __cxa_finalize@@GLIBC_2.2.5 >>> 0000000000000d40 t __do_global_ctors_aux >>> 00000000000007c0 t __do_global_dtors_aux >>> 0000000000201200 d __dso_handle >>> w __gmon_start__ >>> 0000000000201640 A _edata >>> 0000000000201648 A _end >>> 0000000000000d78 T _fini >>> 0000000000000750 T _init >>> 00000000000007a0 t call_gmon_start >>> 0000000000201640 b completed.6115 >>> 0000000000000810 t frame_dummy >>> U mca_pml_v >>> 0000000000201460 D mca_vprotocol_receiver >>> 0000000000000c71 t mca_vprotocol_receiver_add_comm >>> 0000000000000a5f t mca_vprotocol_receiver_add_procs >>> 0000000000201540 D mca_vprotocol_receiver_component >>> 0000000000000cc3 t mca_vprotocol_receiver_component_close >>> 0000000000000d18 t mca_vprotocol_receiver_component_finalize >>> 0000000000000cce t mca_vprotocol_receiver_component_init >>> 0000000000000cb8 t mca_vprotocol_receiver_component_open >>> 0000000000000c93 t mca_vprotocol_receiver_del_comm >>> 0000000000000a89 t mca_vprotocol_receiver_del_procs >>> 000000000000083c t mca_vprotocol_receiver_dump >>> 0000000000000d23 t mca_vprotocol_receiver_enable >>> 00000000000009e7 t mca_vprotocol_receiver_iprobe >>> 0000000000000b9a t mca_vprotocol_receiver_irecv >>> 0000000000000ab3 t mca_vprotocol_receiver_isend >>> 0000000000000a29 t mca_vprotocol_receiver_probe >>> 0000000000000c00 t mca_vprotocol_receiver_recv >>> 0000000000000b21 t mca_vprotocol_receiver_send >>> 00000000000009bd T mca_vprotocol_receiver_start >>> 0000000000000864 t mca_vprotocol_receiver_test >>> 0000000000000896 t mca_vprotocol_receiver_test_all >>> 00000000000008d0 t mca_vprotocol_receiver_test_any >>> 0000000000000950 t mca_vprotocol_receiver_test_some >>> 0000000000000916 t mca_vprotocol_receiver_wait_any >>> 000000000000098a t mca_vprotocol_receiver_wait_some >>> U ompi_request_null >>> U opal_output >>> 0000000000201440 d p.6113 >>> [lfialho@aoclsb-clus openmpi]$ >>> >>> On Mar 5, 2010, at 7:00 PM, Terry Dontje wrote: >>> >>>> Sorry meant to add this, but you might be able to try and find the symbol >>>> causing the issue by twiddling with LD_DEBUG >>>> >>>> --td >>>> Terry Dontje wrote: >>>>> Possibly there is an external symbol in the .so that is being loaded that >>>>> cannot be resolved. >>>>> --td >>>>> Leonardo Fialho wrote: >>>>>> Hi, >>>>>> >>>>>> I know that libtool does not help us to find the source of this error, >>>>>> but, what can generate the following error? >>>>>> >>>>>> [aoclsb-clus.uab.es:11724] mca: base: component_find: unable to open >>>>>> /home/lfialho/lib/openmpi/mca_vprotocol_receiver: perhaps a missing >>>>>> symbol, or compiled for a different version of Open MPI? (ignored) >>>>>> >>>>>> 1) yes, the file exists >>>>>> 2) yes, it has been compiled among all other components >>>>>> 3) yes, it is the same Open MPI version >>>>>> 4) this component is a copy of the pessimist component implemented by >>>>>> Aurelien >>>>>> 5) Aurelien's component presents the same error >>>>>> >>>>>> The question is: what mistake should generate an error during module >>>>>> loading? >>>>>> >>>>>> Thanks in advance, >>>>>> Leonardo >>>>>> _______________________________________________ >>>>>> devel mailing list >>>>>> de...@open-mpi.org >>>>>> http://www.open-mpi.org/mailman/listinfo.cgi/devel >>>>>> >>>>> >>>>> _______________________________________________ >>>>> devel mailing list >>>>> de...@open-mpi.org >>>>> http://www.open-mpi.org/mailman/listinfo.cgi/devel >>>> >>>> _______________________________________________ >>>> devel mailing list >>>> de...@open-mpi.org >>>> http://www.open-mpi.org/mailman/listinfo.cgi/devel >>> >>> >>> _______________________________________________ >>> devel mailing list >>> de...@open-mpi.org >>> http://www.open-mpi.org/mailman/listinfo.cgi/devel >> >> >> _______________________________________________ >> devel mailing list >> de...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/devel > > > _______________________________________________ > devel mailing list > de...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/devel
