test: fsx: fix rbd-nbd daemon logging

Signed-off-by: Mykola Golub <mgolub@mirantis.com>
(cherry picked from commit 09710c46d3811e602250f858fe7292925c1e3c06)

diff --git a/src/test/librbd/fsx.cc b/src/test/librbd/fsx.cc
index 2a06b345e6d464f24ef4f451ad18d68672a019d8..b7d021faa853294e4041f7ede6a281de28a2fdf3 100644 (file)
--- a/src/test/librbd/fsx.cc
+++ b/src/test/librbd/fsx.cc
@@ -1042,7 +1042,8 @@ nbd_open(const char *name, struct rbd_ctx *ctx)
        char dev[4096];
        char *devnode;
 
-       SubProcess process("rbd-nbd", SubProcess::KEEP, SubProcess::PIPE);
+       SubProcess process("rbd-nbd", SubProcess::KEEP, SubProcess::PIPE,
+                          SubProcess::KEEP);
        process.add_cmd_arg("map");
        std::string img;
        img.append(pool);