[PATCH 8/9] ktest: Monitor kernel while running of user tests

[Steven Rostedt]

From: Steven Rostedt <srostedt@xxxxxxxxxx>

Record the console of tests to both the console and the log.
Also, record the bug reports afte the test has completed.
Currently, if a kernel bug happens while running the userland
test, the test stops and will not record the kernel bug. This
makes it difficult to solve what happened.

Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
 tools/testing/ktest/ktest.pl |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index 125ab94..8bbfcee 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -1110,6 +1110,7 @@ sub do_run_test {
 
 	    # we are not guaranteed to get a full line
 	    $full_line .= $line;
+	    doprint $line;
 
 	    if ($full_line =~ /call trace:/i) {
 		$bug = 1;
@@ -1126,6 +1127,19 @@ sub do_run_test {
     } while (!$child_done && !$bug);
 
     if ($bug) {
+	my $failure_start = time;
+	my $now;
+	do {
+	    $line = wait_for_input($monitor_fp, 1);
+	    if (defined($line)) {
+		doprint $line;
+	    }
+	    $now = time;
+	    if ($now - $failure_start >= $stop_after_failure) {
+		last;
+	    }
+	} while (defined($line));
+
 	doprint "Detected kernel crash!\n";
 	# kill the child with extreme prejudice
 	kill 9, $child_pid;
-- 
1.7.2.3


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