ktest: Add timeout for ssh sync testing

commit 4d00fc477a2ce8b6d2b09fb34ef9fe9918e7d434 upstream.

Before rebooting the box, a "ssh sync" is called to the test machine to see
if it is alive or not. But if the test machine is in a partial state, that
ssh may never actually finish, and the ktest test hangs.

Add a 10 second timeout to the sync test, which will fail after 10 seconds
and then cause the test to reboot the test machine.

Cc: stable@vger.kernel.org
Fixes: 6474ace999edd ("ktest.pl: Powercycle the box on reboot if no connection can be made")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index 87af8a6..3118fc0 100755 (executable)
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -1372,7 +1372,7 @@ sub reboot {
 
     } else {
        # Make sure everything has been written to disk
-       run_ssh("sync");
+       run_ssh("sync", 10);
 
        if (defined($time)) {
            start_monitor;