8067144: SIGSEGV with +TraceDeoptimization in Deoptimization::print_objects
Summary: -XX:+TraceDeoptimization tries to print realloc'ed objects even when there are none
Reviewed-by: kvn
--- a/hotspot/src/share/vm/runtime/deoptimization.cpp Tue Dec 09 21:33:51 2014 +0000
+++ b/hotspot/src/share/vm/runtime/deoptimization.cpp Wed Dec 10 16:45:55 2014 +0100
@@ -213,14 +213,14 @@
realloc_failures = realloc_objects(thread, &deoptee, objects, THREAD);
JRT_END
reassign_fields(&deoptee, &map, objects, realloc_failures);
+#ifndef PRODUCT
+ if (TraceDeoptimization) {
+ ttyLocker ttyl;
+ tty->print_cr("REALLOC OBJECTS in thread " INTPTR_FORMAT, thread);
+ print_objects(objects, realloc_failures);
+ }
+#endif
}
-#ifndef PRODUCT
- if (TraceDeoptimization) {
- ttyLocker ttyl;
- tty->print_cr("REALLOC OBJECTS in thread " INTPTR_FORMAT, thread);
- print_objects(objects, realloc_failures);
- }
-#endif
if (save_oop_result) {
// Restore result.
deoptee.set_saved_oop_result(&map, return_value());
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/uncommontrap/TraceDeoptimizationNoRealloc.java Wed Dec 10 16:45:55 2014 +0100
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8067144
+ * @summary -XX:+TraceDeoptimization tries to print realloc'ed objects even when there are none
+ * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:+IgnoreUnrecognizedVMOptions -XX:+TraceDeoptimization TraceDeoptimizationNoRealloc
+ *
+ */
+
+public class TraceDeoptimizationNoRealloc {
+
+ static void m(boolean some_condition) {
+ if (some_condition) {
+ return;
+ }
+ }
+
+
+ static public void main(String[] args) {
+ for (int i = 0; i < 20000; i++) {
+ m(false);
+ }
+ m(true);
+ }
+}