hang in malloc_consolidate()

I have encountered a potential problem with Taroon on an ia64 (Itanium) 
machine.  A particular code seems to be caught in an infinite loop in 
the system library routine malloc_consolidate (), which appears to be 
part of  host libthread_db library "/lib/tls/libthread_db.so.1".

Here is a brief description of the problem:  a user code written in C++ 
executes and then hangs upon exit. It continues to burn cpu at 100%. 
Using gdb I attached to the process and found it in 
malloc_consolidate(). I left it to churn for upwards of 48 hours and it 
continues to be stuck in this routine. It doesn't matter if I use Intel 
C++ or g++.

I can successfully execute this code on other ia32 and ia64 (Itanium) 
machines running other version of Linux.

Has anyone else encountered anything like this?

Thanks,

   --Jeff

-- 
Jeff Nucciarone     [email protected]          http://www.personal.psu.edu/nucci
   Senior Research Programmer, High Performance Computing Group, ITS/ASET
   The Pennsylvania State University
                                "Don't just do it........  do it right."


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