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8067144: SIGSEGV with +TraceDeoptimization in Deoptimization::print_objects

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-XX:+TraceDeoptimization tries to print realloc'ed objects even when there are none

Reviewed-by: kvn
This commit is contained in:
Roland Westrelin 2014-12-10 16:45:55 +01:00
parent f4a9c05895
commit 0dbf9d7161
2 changed files with 53 additions and 6 deletions
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12
hotspot/src/share/vm/runtime/deoptimization.cpp
View File

@ -213,14 +213,14 @@ Deoptimization::UnrollBlock* Deoptimization::fetch_unroll_info_helper(JavaThread
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);
}
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());

47
hotspot/test/compiler/uncommontrap/TraceDeoptimizationNoRealloc.java Normal file
View File

@ -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);
}
}