From: Stefan Hajnoczi <stefa...@redhat.com>
Do not leave stdin, stdout, stderr open after fork. stdout is the
tap-driver.pl pipe. If we keep the pipe open then tap-driver.pl will not
detect that qos-test has terminated and it will hang.
Signed-off-by: Stefan Hajnoczi <stefa...@redhat.com>
Message-Id: <20201027173528.213464-11-stefa...@redhat.com>
Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---
tests/qtest/vhost-user-blk-test.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/tests/qtest/vhost-user-blk-test.c
b/tests/qtest/vhost-user-blk-test.c
index f05f14c192..15daf8ccbc 100644
--- a/tests/qtest/vhost-user-blk-test.c
+++ b/tests/qtest/vhost-user-blk-test.c
@@ -749,6 +749,17 @@ static char *start_vhost_user_blk(GString *cmd_line, int
vus_instances,
storage_daemon_command->str);
pid_t pid = fork();
if (pid == 0) {
+ /*
+ * Close standard file descriptors so tap-driver.pl pipe detects when
+ * our parent terminates.
+ */
+ close(0);
+ close(1);
+ close(2);
+ open("/dev/null", O_RDONLY);
+ open("/dev/null", O_WRONLY);
+ open("/dev/null", O_WRONLY);
+
execlp("/bin/sh", "sh", "-c", storage_daemon_command->str, NULL);
exit(1);
}
--
MST
