--- /dev/null
+Index: linux-2.6.23/arch/mips/kernel/gdb-stub.c
+===================================================================
+--- linux-2.6.23.orig/arch/mips/kernel/gdb-stubc.c 2007-10-12 18:43:44.000000000 +0200
++++ linux-2.6.23/arch/mips/kernel/gdb-stub.c 2007-11-16 08:35:51.000000000 +0100
+@@ -656,6 +656,7 @@
+ *epc = (unsigned long)async_breakpoint;
+ }
+
++#ifdef CONFIG_SMP
+ static void kgdb_wait(void *arg)
+ {
+ unsigned flags;
+@@ -668,6 +669,7 @@
+
+ local_irq_restore(flags);
+ }
++#endif
+
+ /*
+ * GDB stub needs to call kgdb_wait on all processor with interrupts