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authoravg <avg@FreeBSD.org>2011-12-17 15:11:22 +0000
committeravg <avg@FreeBSD.org>2011-12-17 15:11:22 +0000
commitd062f5e7d808af770ca939a38c47ac94d6846449 (patch)
treef97bd7f4e266f0d1fe17b6436a6567e54ea0a72e /sys/kern/subr_kdb.c
parentf6def40e18a13286043257337db12d9d78aa545e (diff)
downloadFreeBSD-src-d062f5e7d808af770ca939a38c47ac94d6846449.zip
FreeBSD-src-d062f5e7d808af770ca939a38c47ac94d6846449.tar.gz
introduce cngrab/cnungrab stub calls in some places where they make sense
MFC after: 2 months
Diffstat (limited to 'sys/kern/subr_kdb.c')
-rw-r--r--sys/kern/subr_kdb.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/kern/subr_kdb.c b/sys/kern/subr_kdb.c
index 3c9d29b..9ca34b1 100644
--- a/sys/kern/subr_kdb.c
+++ b/sys/kern/subr_kdb.c
@@ -32,6 +32,7 @@ __FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
+#include <sys/cons.h>
#include <sys/kdb.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
@@ -622,6 +623,8 @@ kdb_trap(int type, int code, struct trapframe *tf)
makectx(tf, &kdb_pcb);
kdb_thr_select(curthread);
+ cngrab();
+
for (;;) {
handled = be->dbbe_trap(type, code);
if (be == kdb_dbbe)
@@ -632,6 +635,8 @@ kdb_trap(int type, int code, struct trapframe *tf)
printf("Switching to %s back-end\n", be->dbbe_name);
}
+ cnungrab();
+
kdb_active--;
#ifdef SMP
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