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6991377: G1: race between concurrent refinement and humongous object allocation Summary: There is a race between the concurrent refinement threads and the humongous object allocation that can cause the concurrent refinement threads to corrupt the part of the BOT that it is being initialized by the humongous object allocation operation. The solution is to do the humongous object allocation in careful steps to ensure that the concurrent refinement threads always have a consistent view over the BOT, region contents, and top. The fix includes some very minor tidying up in sparsePRT. Reviewed-by: jcoomes, johnc, ysr
author tonyp
date Sat, 16 Oct 2010 17:12:19 -0400
parents c18cbe5936b8
children c7db7adb83b4
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#
# Copyright (c) 2006, 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.
#
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# version 2 for more details (a copy is included in the LICENSE file that
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# 2 along with this work; if not, write to the Free Software Foundation,
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#

# JPRT rule to build this workspace

JPRT_ARCHIVE_BUNDLE=$(ABS_OUTPUTDIR)/$(JPRT_BUILD_FLAVOR)-bundle.zip
ifdef JPRT_BUILD_VERSION
  MILESTONE=$(JPRT_BUILD_VERSION)
endif

ifeq ($(OSNAME),windows)
  ZIPFLAGS=-q
else
  # store symbolic links as the link
  ZIPFLAGS=-q -y
endif

jprt_build_product: all_product copy_product_jdk export_product_jdk
	( $(CD) $(JDK_IMAGE_DIR) && \
	  $(ZIPEXE) $(ZIPFLAGS) -r $(JPRT_ARCHIVE_BUNDLE) . )

jprt_build_fastdebug: all_fastdebug copy_fastdebug_jdk export_fastdebug_jdk
	( $(CD) $(JDK_IMAGE_DIR)/fastdebug && \
	  $(ZIPEXE) $(ZIPFLAGS) -r $(JPRT_ARCHIVE_BUNDLE) . )

jprt_build_debug: all_debug copy_debug_jdk export_debug_jdk
	( $(CD) $(JDK_IMAGE_DIR)/debug && \
	  $(ZIPEXE) $(ZIPFLAGS) -r $(JPRT_ARCHIVE_BUNDLE) . )

.PHONY: jprt_build_product jprt_build_fastdebug jprt_build_debug