[PATCH 5.4 074/123] ktest: Add timeout for ssh sync testing

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From: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>

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@xxxxxxxxxxxxxxx
Fixes: 6474ace999edd ("ktest.pl: Powercycle the box on reboot if no connection can be made")
Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 tools/testing/ktest/ktest.pl |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -1383,7 +1383,7 @@ sub reboot {
 
     } else {
 	# Make sure everything has been written to disk
-	run_ssh("sync");
+	run_ssh("sync", 10);
 
 	if (defined($time)) {
 	    start_monitor;





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