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src/share/vm/memory/metaspaceTracer.cpp@c39172598323 (annotated)

src/share/vm/memory/metaspaceTracer.cpp

Mon, 23 Mar 2020 17:57:13 +0000

author

poonam

date

Mon, 23 Mar 2020 17:57:13 +0000

changeset 9965

c39172598323

parent 9858

b985cbb00e68

child 9931

fd44df5e3bc3

permissions

-rw-r--r--

8231779: crash HeapWord*ParallelScavengeHeap::failed_mem_allocate
Reviewed-by: dlong, tschatzl, pliden

ehelin@6417	1	/*
ehelin@6417	2	* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
ehelin@6417	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ehelin@6417	4	*
ehelin@6417	5	* This code is free software; you can redistribute it and/or modify it
ehelin@6417	6	* under the terms of the GNU General Public License version 2 only, as
ehelin@6417	7	* published by the Free Software Foundation.
ehelin@6417	8	*
ehelin@6417	9	* This code is distributed in the hope that it will be useful, but WITHOUT
ehelin@6417	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ehelin@6417	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
ehelin@6417	12	* version 2 for more details (a copy is included in the LICENSE file that
ehelin@6417	13	* accompanied this code).
ehelin@6417	14	*
ehelin@6417	15	* You should have received a copy of the GNU General Public License version
ehelin@6417	16	* 2 along with this work; if not, write to the Free Software Foundation,
ehelin@6417	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ehelin@6417	18	*
ehelin@6417	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ehelin@6417	20	* or visit www.oracle.com if you need additional information or have any
ehelin@6417	21	* questions.
ehelin@6417	22	*
ehelin@6417	23	*/
ehelin@6417	24
ehelin@6417	25	#include "precompiled.hpp"
ehelin@6418	26	#include "classfile/classLoaderData.hpp"
apetushkov@9858	27	#include "jfr/jfrEvents.hpp"
ehelin@6417	28	#include "memory/metaspaceTracer.hpp"
ehelin@6428	29	#include "oops/oop.inline.hpp"
ehelin@6417	30
ehelin@6417	31	void MetaspaceTracer::report_gc_threshold(size_t old_val,
ehelin@6417	32	size_t new_val,
ehelin@6417	33	MetaspaceGCThresholdUpdater::Type updater) const {
ehelin@6417	34	EventMetaspaceGCThreshold event;
ehelin@6417	35	if (event.should_commit()) {
ehelin@6417	36	event.set_oldValue(old_val);
ehelin@6417	37	event.set_newValue(new_val);
ehelin@6417	38	event.set_updater((u1)updater);
ehelin@6417	39	event.commit();
ehelin@6417	40	}
ehelin@6417	41	}
ehelin@6418	42
ehelin@6418	43	void MetaspaceTracer::report_metaspace_allocation_failure(ClassLoaderData *cld,
ehelin@6418	44	size_t word_size,
ehelin@6418	45	MetaspaceObj::Type objtype,
ehelin@6418	46	Metaspace::MetadataType mdtype) const {
ehelin@6419	47	send_allocation_failure_event<EventMetaspaceAllocationFailure>(cld, word_size, objtype, mdtype);
ehelin@6419	48	}
ehelin@6419	49
ehelin@6419	50	void MetaspaceTracer::report_metadata_oom(ClassLoaderData *cld,
ehelin@6419	51	size_t word_size,
ehelin@6419	52	MetaspaceObj::Type objtype,
ehelin@6419	53	Metaspace::MetadataType mdtype) const {
ehelin@6419	54	send_allocation_failure_event<EventMetaspaceOOM>(cld, word_size, objtype, mdtype);
ehelin@6419	55	}
ehelin@6419	56
ehelin@6419	57	template <typename E>
ehelin@6419	58	void MetaspaceTracer::send_allocation_failure_event(ClassLoaderData *cld,
ehelin@6419	59	size_t word_size,
ehelin@6419	60	MetaspaceObj::Type objtype,
ehelin@6419	61	Metaspace::MetadataType mdtype) const {
ehelin@6419	62	E event;
ehelin@6418	63	if (event.should_commit()) {
ehelin@6418	64	if (cld->is_anonymous()) {
ehelin@6418	65	event.set_classLoader(NULL);
ehelin@6418	66	event.set_anonymousClassLoader(true);
ehelin@6418	67	} else {
ehelin@6418	68	if (cld->is_the_null_class_loader_data()) {
apetushkov@9858	69	event.set_classLoader(NULL);
ehelin@6418	70	} else {
apetushkov@9858	71	event.set_classLoader(cld);
ehelin@6418	72	}
ehelin@6418	73	event.set_anonymousClassLoader(false);
ehelin@6418	74	}
ehelin@6418	75
ehelin@6418	76	event.set_size(word_size * BytesPerWord);
ehelin@6418	77	event.set_metadataType((u1) mdtype);
ehelin@6418	78	event.set_metaspaceObjectType((u1) objtype);
ehelin@6418	79	event.commit();
ehelin@6418	80	}
ehelin@6418	81	}