[src/trunk]: src/sys/rump/librump/rumpkern stop ktrace at process exit

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

details:   https://anonhg.NetBSD.org/src/rev/a4035e037272
branches:  trunk
changeset: 791895:a4035e037272
user:      pooka <pooka%NetBSD.org@localhost>
date:      Mon Dec 09 16:21:15 2013 +0000

description:
stop ktrace at process exit

diffstat:

 sys/rump/librump/rumpkern/lwproc.c |  17 +++++++++++++----
 1 files changed, 13 insertions(+), 4 deletions(-)

diffs (49 lines):

diff -r 0fd89d142ede -r a4035e037272 sys/rump/librump/rumpkern/lwproc.c
--- a/sys/rump/librump/rumpkern/lwproc.c        Mon Dec 09 09:35:16 2013 +0000
+++ b/sys/rump/librump/rumpkern/lwproc.c        Mon Dec 09 16:21:15 2013 +0000
@@ -1,4 +1,4 @@
-/*      $NetBSD: lwproc.c,v 1.24 2013/10/27 20:25:45 pooka Exp $       */
+/*      $NetBSD: lwproc.c,v 1.25 2013/12/09 16:21:15 pooka Exp $       */
 
 /*
  * Copyright (c) 2010, 2011 Antti Kantee.  All Rights Reserved.
@@ -26,7 +26,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: lwproc.c,v 1.24 2013/10/27 20:25:45 pooka Exp $");
+__KERNEL_RCSID(0, "$NetBSD: lwproc.c,v 1.25 2013/12/09 16:21:15 pooka Exp $");
 
 #include <sys/param.h>
 #include <sys/atomic.h>
@@ -34,6 +34,7 @@
 #include <sys/kauth.h>
 #include <sys/kmem.h>
 #include <sys/lwp.h>
+#include <sys/ktrace.h>
 #include <sys/pool.h>
 #include <sys/proc.h>
 #include <sys/queue.h>
@@ -51,12 +52,20 @@
 {
        kauth_cred_t cred;
 
+       KASSERT(p->p_stat == SDYING || p->p_stat == SDEAD);
+
+#ifdef KTRACE
+       if (p->p_tracep) {
+               mutex_enter(&ktrace_lock);
+               ktrderef(p);
+               mutex_exit(&ktrace_lock);
+       }
+#endif
+
        mutex_enter(proc_lock);
 
        KASSERT(p->p_nlwps == 0);
        KASSERT(LIST_EMPTY(&p->p_lwps));
-       KASSERT(p->p_stat == SACTIVE || p->p_stat == SDYING ||
-           p->p_stat == SDEAD);
 
        LIST_REMOVE(p, p_list);
        LIST_REMOVE(p, p_sibling);