With today's gdb from CVS, I got: # /work/build/gnu/bin/gdb.orig/gdb/gdb ex1 (gdb) r Starting program: /work/build/gnu/bin/glibc-2.1.old/linuxthreads/ex1 [New Thread 1024 (runnable)] ex1 is from linuxthreads in glibc 2.1.3. -- H.J. Lu (hjl@gnu.org)