The old_exception field is initialized on startup with 0.
Therefore the very first fault (e.g. #GP) could be converted
to a double fault on an application processor. The attached
patch initialize old_exception on every CPU reset with -1.
Bernhard Kauer
Index: target-i386/helper2.c
===================================================================
RCS file: /sources/qemu/qemu/target-i386/helper2.c,v
retrieving revision 1.47
diff -u -r1.47 helper2.c
--- target-i386/helper2.c 17 Apr 2007 23:08:56 -0000 1.47
+++ target-i386/helper2.c 31 Jul 2007 14:30:55 -0000
@@ -155,6 +155,8 @@
tlb_flush(env, 1);
+ env->old_exception = -1;
+
/* init to reset state */
#ifdef CONFIG_SOFTMMU
