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: Steven Rostedt <rostedt@goodmis.org>
diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index d10fff1..c8a42d5 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -1138,6 +1138,7 @@
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 @@
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 @@
$booted = 1;
}
+ if ($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 @@
}
}
print "** Monitor flushed **\n";
- return 0;
+ return $bug;
}
sub save_logs {