Mark,

   The current mainline gdb fails for ia64 linux due to an assertion in 
deprecated_select_gdbarch_hack().  I noticed you added this code recently.  I 
have attached a scripted session with set debug arch 1.  Can you verify if the 
debug messages indicate any unanticipated path through your code?  I am just 
trying to debug a simple "hello world" program.

-- Jeff J.