1 files changed, 19 insertions, 0 deletions
diff --git a/mysql-test/mysql-test-run.pl b/mysql-test/mysql-test-run.pl
index c105a69e861..b5137e06fb8 100755
--- a/mysql-test/mysql-test-run.pl
+++ b/mysql-test/mysql-test-run.pl
@@ -2237,6 +2237,25 @@ sub setup_vardir() {
   {
     unlink($name);
   }
+  if ( $opt_valgrind and $opt_debug )
+  {
+    # When both --valgrind and --debug is selected, send
+    # all output to the trace file, making it possible to
+    # see the exact location where valgrind complains
+    foreach my $mysqld (@{$master}, @{$slave})
+    {
+      my $sidx= $mysqld->{idx} ? "$mysqld->{idx}" : "";
+      my $trace_name= "$opt_vardir/log/" . $mysqld->{type} . "$sidx.trace";
+      open(LOG, ">$mysqld->{path_myerr}") or die "Can't create $mysqld->{path_myerr}\n";
+      print LOG "
+NOTE: When running with --valgrind --debug the output from the .err file is
+stored together with the trace file to make it easier to find the exact
+position for valgrind errors.
+See trace file $trace_name.\n";
+      close(LOG);
+      $mysqld->{path_myerr}= $trace_name;
+    }
+  }
 }