[Kgdb-bugreport] [PATCH] More local_irq_save/local_irq_restore changes

[Manish L. <mla...@mv...>]

Hello !

The attached patch is needed for KGDB on SMP MIPS. This has been tested 
on the Broadcom Sibyte.

kgdb_roundup_cpus() calls smp_call_function() which checks for 
irqs_disabled(), for obvious reasons

Thanks
Manish Lachwani


--- kernel/kgdb.c.orig  2004-12-08 11:06:45.000000000 -0800
+++ kernel/kgdb.c       2004-12-08 12:16:28.000000000 -0800
@@ -819,9 +819,17 @@
                 for (i = 0; i < NR_CPUS; i++)
                         spin_lock(&slavecpulocks[i]);

+#ifdef CONFIG_SMP
+       local_irq_restore(flags);
+#endif
+
         /* Make sure we get the other CPUs */
         kgdb_roundup_cpus();

+#ifdef CONFIG_SMP
+       local_irq_save(flags);
+#endif
+
         /* spin_lock code is good enough as a barrier so we don't
          * need one here */
         procindebug[smp_processor_id()] = 1;