Brad Lucier wrote: > I'm using gdb 4.17.0.11. Everything is fine until I try to step through the > following code: GDB 4.17 is very very old (> 2 years). 4.17.0.11 sounds like someones custom branch. The problem may well be fixed in GDB 5.0 (or a current snap). Could I suggest first downloading GDB 5.0 / current and seeing if the problem still occures. Andrew