Why does my debugger trap in __arch_clear_user?
[24 August 2006 – rmk] This is normal. As the kernel operates a demand paged memory system, pages are faulted in via data aborts and prefetch aborts. However, some debuggers assume that data or prefetch aborts means that your program did something wrong, and halt program execution on these events. Therefore, you need to disable this behaviour in your debugger.