[src/trunk]: src/sys/arch/alpha/alpha Panic if we get an MM trans/prot fault ...

[thorpej <thorpej%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/e80a993409ad
branches:  trunk
changeset: 511771:e80a993409ad
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Tue Jun 26 17:29:28 2001 +0000

description:
Panic if we get an MM trans/prot fault in interrupt context.

diffstat:

 sys/arch/alpha/alpha/trap.c |  13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)

diffs (41 lines):

diff -r 8ee7184cc026 -r e80a993409ad sys/arch/alpha/alpha/trap.c
--- a/sys/arch/alpha/alpha/trap.c       Tue Jun 26 17:27:31 2001 +0000
+++ b/sys/arch/alpha/alpha/trap.c       Tue Jun 26 17:29:28 2001 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: trap.c,v 1.72 2001/06/02 18:09:08 chs Exp $ */
+/* $NetBSD: trap.c,v 1.73 2001/06/26 17:29:28 thorpej Exp $ */
 
 /*-
  * Copyright (c) 2000 The NetBSD Foundation, Inc.
@@ -99,7 +99,7 @@
 
 #include <sys/cdefs.h>                 /* RCS ID & Copyright macro defns */
 
-__KERNEL_RCSID(0, "$NetBSD: trap.c,v 1.72 2001/06/02 18:09:08 chs Exp $");
+__KERNEL_RCSID(0, "$NetBSD: trap.c,v 1.73 2001/06/26 17:29:28 thorpej Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -361,6 +361,8 @@
                        if (user)
                                KERNEL_PROC_LOCK(p);
                        else {
+                               struct cpu_info *ci = curcpu();
+
                                if (p == NULL) {
                                        /*
                                         * If there is no current process,
@@ -387,6 +389,13 @@
                                        goto out;
                                }
 
+                               /*
+                                * If we're in interrupt context at this
+                                * point, this is an error.
+                                */
+                               if (ci->ci_intrdepth != 0)
+                                       goto dopanic;
+
                                KERNEL_LOCK(LK_CANRECURSE|LK_EXCLUSIVE);
                        }