%         Registration                   NPTL Stabilization Project           
%  [2]Register/Submit Proposal Tony Franc,ois Claude Reix                     
%                              (tony.reix@bull.net)                           

Our project is a stabilization effort on the   
GNU libc thread library NPTL---Native POSIX    
Threading Library. To achieve this, we focused 
our work on extending the pool of open-source  
tests and on providing a tool for tracing the  
internal mechanisms of the library.            

This paper introduces our work with a short    
status on tests coverage of the NPTL at the    
beginning of the project (February 2004). It   
explains how we built the prioritized list of  
NPTL routines to be tested. It then describes  
our methodology for designing tests in the     
following areas: conformance to POSIX          
standard, scalability and stress. It also      
explains how we have simplified the use of the 
tests and the analysis of the results.         
Finally, it provides figures about our results 
and it shows how the NPTL has evolved during   
year 2004.                                     

The paper goes on to explain how the NPTL      
Trace Tool can help NPTL users and hackers to  
understand and fix problems. It describes the  
features of the tool and presents our chosen   
architecture. Finally, it shows the current    
status of the project and the possible future  
extensions.