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Commit 8a80c727 authored by Steven Rostedt's avatar Steven Rostedt Committed by Steven Rostedt
Browse files

ktest: Add check for bug or panic during reboot 



Usually the target is booted into a dependable kernel when a test
starts. The test will install the test kernel and reboot the box. But
there may be a time that the kernel is running an unreliable kernel and
the reboot may crash.

Have ktest detect crashes on a reboot and force a power-cycle instead.

This can usually happen if a test kernel was installed to run manual
tests, but the user forgot to reboot to the known good kernel.

Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent 407b95b7

tools/testing/ktest/ktest.pl

+27 −1
Original line number Diff line number Diff line
@@ -1138,6 +1138,7 @@ sub reboot { 
    if (defined($time)) {

	if (wait_for_monitor($time, $reboot_success_line)) {

	    # reboot got stuck?

	    doprint "Reboot did not finish. Forcing power cycle\n";

	    run_command "$power_cycle";

	}

	end_monitor;
@@ -1235,6 +1236,9 @@ sub wait_for_monitor { 
    my $line;

    my $booted = 0;

    my $start_time = time;

    my $skip_call_trace = 0;

    my $bug = 0;

    my $bug_ignored = 0;

    my $now;



    doprint "** Wait for monitor to settle down **\n";
@@ -1251,6 +1255,28 @@ sub wait_for_monitor { 
	    $booted = 1;

	}



	if ($full_line =~ /\[ backtrace testing \]/) {

	    $skip_call_trace = 1;

	}



	if ($full_line =~ /call trace:/i) {

	    if (!$bug && !$skip_call_trace) {

		if ($ignore_errors) {

		    $bug_ignored = 1;

		} else {

		    $bug = 1;

		}

	    }

	}



	if ($full_line =~ /\[ end of backtrace testing \]/) {

	    $skip_call_trace = 0;

	}



	if ($full_line =~ /Kernel panic -/) {

	    $bug = 1;

	}



	if ($line =~ /\n/) {

	    $full_line = "";

	}
@@ -1261,7 +1287,7 @@ sub wait_for_monitor { 
	}

    }

    print "** Monitor flushed **\n";

    return 0;

    return $bug;

}



sub save_logs {