attach: log failues to dup2() with SYSDEBUG()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

diff --git a/src/lxc/attach.c b/src/lxc/attach.c
index 01f70ac2c988f6a2912c66e44b5cec4564cb6cff..82e9d9a47ff6b2982ef5824d619a207fa207fa43 100644 (file)
--- a/src/lxc/attach.c
+++ b/src/lxc/attach.c
@@ -1130,15 +1130,15 @@ __noreturn static void do_attach(struct attach_payload *ap)
         */
        if (options->stdin_fd >= 0 && options->stdin_fd != STDIN_FILENO)
                if (dup2(options->stdin_fd, STDIN_FILENO))
-                       DEBUG("Failed to replace stdin with %d", options->stdin_fd);
+                       SYSDEBUG("Failed to replace stdin with %d", options->stdin_fd);
 
        if (options->stdout_fd >= 0 && options->stdout_fd != STDOUT_FILENO)
                if (dup2(options->stdout_fd, STDOUT_FILENO))
-                       DEBUG("Failed to replace stdout with %d", options->stdin_fd);
+                       SYSDEBUG("Failed to replace stdout with %d", options->stdin_fd);
 
        if (options->stderr_fd >= 0 && options->stderr_fd != STDERR_FILENO)
                if (dup2(options->stderr_fd, STDERR_FILENO))
-                       DEBUG("Failed to replace stderr with %d", options->stdin_fd);
+                       SYSDEBUG("Failed to replace stderr with %d", options->stdin_fd);
 
        /* close the old fds */
        if (options->stdin_fd > STDERR_FILENO)