George, I have warning when running under debugger 'Lowest section in
system-supplied DSO at 0xffffe000 is .hash at ffffe0b4'
The program hangs in _int_malloc():
(gdb) run
Starting program: /opt/openmpi-1.2.7/bin/ompi_info
warning: Lowest section in system-supplied DSO at 0xffffe000 is .hash
at ffffe0b4
[Thread debugging using libthread_db enabled]
[New Thread 0xf7b7d6d0 (LWP 16621)]
1.2.7
Program received signal SIGINT, Interrupt.
[Switching to Thread 0xf7b7d6d0 (LWP 16621)]
0xf7e5267e in _int_malloc () from /opt/openmpi/lib/libopen-pal.so.0
(gdb) where
#0 0xf7e5267e in _int_malloc () from /opt/openmpi/lib/libopen-pal.so.0
#1 0xf7e544e1 in malloc () from /opt/openmpi/lib/libopen-pal.so.0
#2 0xf7db46c7 in operator new () from /usr/lib/libstdc++.so.6
#3 0xf7d8e121 in std::string::_Rep::_S_create () from /usr/lib/
libstdc++.so.6
#4 0xf7d8ee18 in std::string::_Rep::_M_clone () from /usr/lib/libstdc
++.so.6
#5 0xf7d8fac8 in std::string::reserve () from /usr/lib/libstdc++.so.6
#6 0xf7d8ff6a in std::string::append () from /usr/lib/libstdc++.so.6
#7 0x08054f30 in ompi_info::out ()
#8 0x08062a33 in ompi_info::show_ompi_version ()
#9 0x080533a0 in main ()
On Nov 8, 2008, at 12:33 PM, George Bosilca wrote:
I think we had a similar problem on the past. It has something to
do with the atomics on this architecture.
I don't have access to such an architecture. Can you provide us a
stack trace when this happens ?
Thanks,
george.
On Nov 8, 2008, at 12:14 PM, Robert Kubrick wrote:
I am having problems building OMPI 1.2.7 on an Intel Xeon quad-
core 64 bits server. The compilation completes but ompi_info hangs
after printing the OMPI version:
# ompi_info
1.2.7
I tried to run a few mpi applications on this same install and
they do work fine. What can cause ompi_info to hang?
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