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8007074: SIGSEGV at ParMarkBitMap::verify_clear()

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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
This commit is contained in:
Stefan Karlsson 2013-08-16 13:22:32 +02:00
parent 6a548048a3
commit 7ade7987a0
20 changed files with 796 additions and 159 deletions
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6
hotspot/src/share/vm/prims/jni.cpp
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@ -5027,9 +5027,15 @@ _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {
tty->print_cr("Running test: " #unit_test_function_call); \
unit_test_function_call
// Forward declaration
void TestReservedSpace_test();
void TestReserveMemorySpecial_test();
void execute_internal_vm_tests() {
if (ExecuteInternalVMTests) {
tty->print_cr("Running internal VM tests");
run_unit_test(TestReservedSpace_test());
run_unit_test(TestReserveMemorySpecial_test());
run_unit_test(GlobalDefinitions::test_globals());
run_unit_test(GCTimerAllTest::all());
run_unit_test(arrayOopDesc::test_max_array_length());