From aea374f69d51c6f8bf613132539271ce4c97f8aa Mon Sep 17 00:00:00 2001
From: bdrewery <bdrewery@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Date: Wed, 8 Aug 2018 17:49:35 +0000
Subject: [PATCH] MFC r335183:

  proc0_post: Fix some locking issues


git-svn-id: svn://svn.freebsd.org/base/stable/10@337471 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
---
 sys/kern/init_main.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sys/kern/init_main.c b/sys/kern/init_main.c
index 9256832e9..67b84f137 100644
--- a/sys/kern/init_main.c
+++ b/sys/kern/init_main.c
@@ -611,17 +611,23 @@ proc0_post(void *dummy __unused)
 	 */
 	sx_slock(&allproc_lock);
 	FOREACH_PROC_IN_SYSTEM(p) {
+		PROC_LOCK(p);
+		if (p->p_state == PRS_NEW) {
+			PROC_UNLOCK(p);
+			continue;
+		}
 		microuptime(&p->p_stats->p_start);
 		PROC_STATLOCK(p);
 		rufetch(p, &ru);	/* Clears thread stats */
-		PROC_STATUNLOCK(p);
 		p->p_rux.rux_runtime = 0;
 		p->p_rux.rux_uticks = 0;
 		p->p_rux.rux_sticks = 0;
 		p->p_rux.rux_iticks = 0;
+		PROC_STATUNLOCK(p);
 		FOREACH_THREAD_IN_PROC(p, td) {
 			td->td_runtime = 0;
 		}
+		PROC_UNLOCK(p);
 	}
 	sx_sunlock(&allproc_lock);
 	PCPU_SET(switchtime, cpu_ticks());
-- 
2.45.0