From f73802fe6dea5e35f42c8fb4f4a7f73d5b633e90 Mon Sep 17 00:00:00 2001
From: Andrew Vagin <avagin@virtuozzo.com>
Date: Fri, 27 Nov 2015 16:00:00 +0300
Subject: [PATCH] zdtm: check a case when a task is in sub-mntns, its child is
 in root mtnns

Signed-off-by: Andrew Vagin <avagin@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
---
 test/zdtm/live/static/tempfs_subns.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/test/zdtm/live/static/tempfs_subns.c b/test/zdtm/live/static/tempfs_subns.c
index 178400d83..99169be94 100644
--- a/test/zdtm/live/static/tempfs_subns.c
+++ b/test/zdtm/live/static/tempfs_subns.c
@@ -52,6 +52,13 @@ int main(int argc, char **argv)
 				sleep(1);
 			return 1;
 		}
+		pid = fork();
+		if (pid == 0) {
+			prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
+			while (1)
+				sleep(1);
+			return 1;
+		}
 		if (unshare(CLONE_NEWNS)) {
 			pr_perror("unshare");
 			return 1;