ktest: Copy the last good and bad configs in config_bisect

During the config_bisect, in case of failure, it is nice to have
the last good and bad .configs that were used. This would let
us restart the config_bisect from those configs.

Copy the last good config into the output dir as config_good,
and the last bad config as config_bad.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index 08a875fa4251..04a3227ef5e0 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -1281,6 +1281,8 @@ sub process_passed {
             delete $config_list{$config};
         }
     }
+    doprint "config copied to $outputdir/config_good\n";
+    run_command "cp -f $output_config $outputdir/config_good";
 }
 
 sub process_failed {
@@ -1358,6 +1360,8 @@ sub run_config_bisect {
 
         doprint "This config had a failure.\n";
         doprint "Removing these configs that were not set in this config:\n";
+        doprint "config copied to $outputdir/config_bad\n";
+        run_command "cp -f $output_config $outputdir/config_bad";
 
         # A config exists in this group that was bad.
         foreach my $config (keys %config_list) {