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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 93193e632121
children 570870354f86
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# 

#
# Master Hotspot version file.  These values may be overridden by a control
# workspace build.  This file format must remain compatible with both
# GNU Makefile and Microsoft nmake formats.
#

# Don't put quotes (fail windows build).
HOTSPOT_VM_COPYRIGHT=Copyright 2010

HS_MAJOR_VER=20
HS_MINOR_VER=0
HS_BUILD_NUMBER=01

JDK_MAJOR_VER=1
JDK_MINOR_VER=7
JDK_MICRO_VER=0

# Previous (bootdir) JDK version
JDK_PREVIOUS_VERSION=1.6.0