It seems in the changes for adding CONFIG_KGDB that the ARM
trap initialisation has been turned off if the configuration
is not enabled. If CONFIG_KGDB is not set, the system locks
up as soon as the kernel turns the IRQs on for the first
time in init/main.c.

The fix is to remove the dependency on calling early_trap_init()
on CONFIG_KGDB, so that the vectors are initialised before
the init sequence enables the IRQs.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>

--- linux-2.6.26-rc6-q1.orig/arch/arm/kernel/setup.c	2008-06-18 15:17:31.000000000 +0100
+++ linux-2.6.26-rc6-q1/arch/arm/kernel/setup.c	2008-06-18 15:17:45.000000000 +0100
@@ -855,9 +855,7 @@ void __init setup_arch(char **cmdline_p)
 #endif
 #endif
 
-#if defined(CONFIG_KGDB)
 	early_trap_init();
-#endif
 }