Here is a stackdump from inside the debugger (because it gives filenames
and line numbers):
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7f1eb6bfd700 (LWP 24847)]
0x000000366aa79252 in _int_malloc () from /lib64/libc.so.6
(gdb) bt
#0 0x000000366aa79252 in _int_malloc () from /lib64/libc.so.6
#1 0x000000366aa7b7da in _int_realloc () from /lib64/libc.so.6
#2 0x000000366aa7baf5 in realloc () from /lib64/libc.so.6
#3 0x00007f1ee005d0a8 in epoll_dispatch (base=<value optimized out>,
arg=0x13d1310, tv=<value optimized out>)
at ../../../../../package/openmpi-1.6.5/opal/event/epoll.c:271
#4 0x00007f1ee005f1cf in opal_event_base_loop (base=0x13d1e50,
flags=<value optimized out>)
at ../../../../../package/openmpi-1.6.5/opal/event/event.c:838
#5 0x00007f1ee00842f9 in opal_progress () at
../../../../package/openmpi-1.6.5/opal/runtime/opal_progress.c:189
#6 0x00007f1ecd43cd7f in mca_pml_ob1_iprobe (src=<value optimized out>,
tag=-1, comm=0x164dd40, matched=0x7f1eb6bfb8ac, status=0x7f1eb6bfb8b0)
at
../../../../../../../package/openmpi-1.6.5/ompi/mca/pml/ob1/pml_ob1_iprobe.c:48
#7 0x00007f1edffe3427 in PMPI_Iprobe (source=227, tag=-1, comm=0x164dd40,
flag=<value optimized out>, status=<value optimized out>)
at piprobe.c:79
#8 0x00007f1eebb518e7 in OMPIConnection::Receive (this=0x13c7950,
rMessage_p=std::vector of length 0, capacity 0,
rMessageId_p=@0x7f1eb6bfc26c, NodeId_p=227)
