Fri, 16 Aug 2013 13:22:32 +0200
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
Summary: Replace the broken large pages implementation on Linux. New flag: -XX:+UseTransparentHugePages - Linux specific flag to turn on transparent huge page hinting with madvise(..., MAP_HUGETLB). Changed behavior: -XX:+UseLargePages - tries to use -XX:+UseTransparentHugePages before trying other large pages implementations (on Linux). Changed behavior: -XX:+UseHugeTLBFS - Use upfront allocation of Large Pages instead of using the broken implementation to dynamically committing large pages. Changed behavior: -XX:LargePageSizeInBytes - Turned off the ability to use this flag on Linux and provides warning to user if set to a value different than the OS chosen large page size. Changed behavior: Setting no large page size - Now defaults to use -XX:UseTransparentHugePages if the OS supports it. Previously, -XX:+UseHugeTLBFS was chosen if the OS was configured to use large pages.
Reviewed-by: tschatzl, dcubed, brutisso
1 /*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 * This code is free software; you can redistribute it and/or modify it
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25 #ifndef SHARE_VM_PRIMS_JVMTIENTER_HPP
26 #define SHARE_VM_PRIMS_JVMTIENTER_HPP
28 #include "classfile/systemDictionary.hpp"
29 #include "jvmtifiles/jvmtiEnv.hpp"
30 #include "memory/resourceArea.hpp"
31 #include "prims/jvmtiImpl.hpp"
32 #include "runtime/interfaceSupport.hpp"
34 #endif // SHARE_VM_PRIMS_JVMTIENTER_HPP