Wed, 02 Nov 2011 08:04:23 +0100
7106751: G1: gc/gctests/nativeGC03 crashes VM with SIGSEGV
Summary: _cset_rs_update_cl[] was indexed with values beyond what it is set up to handle.
Reviewed-by: ysr, jmasa, johnc
ysr@777 | 1 | /* |
tonyp@2469 | 2 | * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved. |
ysr@777 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
ysr@777 | 4 | * |
ysr@777 | 5 | * This code is free software; you can redistribute it and/or modify it |
ysr@777 | 6 | * under the terms of the GNU General Public License version 2 only, as |
ysr@777 | 7 | * published by the Free Software Foundation. |
ysr@777 | 8 | * |
ysr@777 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
ysr@777 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
ysr@777 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
ysr@777 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
ysr@777 | 13 | * accompanied this code). |
ysr@777 | 14 | * |
ysr@777 | 15 | * You should have received a copy of the GNU General Public License version |
ysr@777 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
ysr@777 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
ysr@777 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
ysr@777 | 22 | * |
ysr@777 | 23 | */ |
ysr@777 | 24 | |
stefank@2314 | 25 | #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1_GLOBALS_HPP |
stefank@2314 | 26 | #define SHARE_VM_GC_IMPLEMENTATION_G1_G1_GLOBALS_HPP |
stefank@2314 | 27 | |
stefank@2314 | 28 | #include "runtime/globals.hpp" |
stefank@2314 | 29 | |
ysr@777 | 30 | // |
ysr@777 | 31 | // Defines all globals flags used by the garbage-first compiler. |
ysr@777 | 32 | // |
ysr@777 | 33 | |
ysr@785 | 34 | #define G1_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw) \ |
ysr@777 | 35 | \ |
johnc@1186 | 36 | product(intx, G1ConfidencePercent, 50, \ |
ysr@777 | 37 | "Confidence level for MMU/pause predictions") \ |
ysr@777 | 38 | \ |
tonyp@1319 | 39 | develop(intx, G1MarkingOverheadPercent, 0, \ |
ysr@777 | 40 | "Overhead of concurrent marking") \ |
ysr@777 | 41 | \ |
ysr@777 | 42 | \ |
johnc@1186 | 43 | develop(intx, G1PolicyVerbose, 0, \ |
ysr@777 | 44 | "The verbosity level on G1 policy decisions") \ |
ysr@777 | 45 | \ |
ysr@777 | 46 | develop(intx, G1MarkingVerboseLevel, 0, \ |
ysr@777 | 47 | "Level (0-4) of verboseness of the marking code") \ |
ysr@777 | 48 | \ |
tonyp@1479 | 49 | develop(bool, G1PrintReachableAtInitialMark, false, \ |
tonyp@1479 | 50 | "Reachable object dump at the initial mark pause") \ |
tonyp@1479 | 51 | \ |
tonyp@1479 | 52 | develop(bool, G1VerifyDuringGCPrintReachable, false, \ |
tonyp@1479 | 53 | "If conc mark verification fails, dump reachable objects") \ |
tonyp@1479 | 54 | \ |
tonyp@1479 | 55 | develop(ccstr, G1PrintReachableBaseFile, NULL, \ |
tonyp@1479 | 56 | "The base file name for the reachable object dumps") \ |
ysr@777 | 57 | \ |
ysr@777 | 58 | develop(bool, G1TraceMarkStackOverflow, false, \ |
ysr@777 | 59 | "If true, extra debugging code for CM restart for ovflw.") \ |
ysr@777 | 60 | \ |
ysr@777 | 61 | develop(intx, G1PausesBtwnConcMark, -1, \ |
ysr@777 | 62 | "If positive, fixed number of pauses between conc markings") \ |
ysr@777 | 63 | \ |
tonyp@1717 | 64 | diagnostic(bool, G1SummarizeConcMark, false, \ |
ysr@777 | 65 | "Summarize concurrent mark info") \ |
ysr@777 | 66 | \ |
johnc@1186 | 67 | diagnostic(bool, G1SummarizeRSetStats, false, \ |
ysr@777 | 68 | "Summarize remembered set processing info") \ |
ysr@777 | 69 | \ |
tonyp@1319 | 70 | diagnostic(intx, G1SummarizeRSetStatsPeriod, 0, \ |
tonyp@1319 | 71 | "The period (in number of GCs) at which we will generate " \ |
tonyp@1319 | 72 | "update buffer processing info " \ |
tonyp@1319 | 73 | "(0 means do not periodically generate this info); " \ |
tonyp@1319 | 74 | "it also requires -XX:+G1SummarizeRSetStats") \ |
tonyp@1319 | 75 | \ |
tonyp@1717 | 76 | diagnostic(bool, G1TraceConcRefinement, false, \ |
ysr@777 | 77 | "Trace G1 concurrent refinement") \ |
ysr@777 | 78 | \ |
johnc@1186 | 79 | product(intx, G1MarkRegionStackSize, 1024 * 1024, \ |
ysr@777 | 80 | "Size of the region stack for concurrent marking.") \ |
ysr@777 | 81 | \ |
johnc@2494 | 82 | product(double, G1ConcMarkStepDurationMillis, 10.0, \ |
johnc@2494 | 83 | "Target duration of individual concurrent marking steps " \ |
johnc@2494 | 84 | "in milliseconds.") \ |
johnc@2494 | 85 | \ |
johnc@2494 | 86 | product(intx, G1RefProcDrainInterval, 10, \ |
johnc@2494 | 87 | "The number of discovered reference objects to process before " \ |
johnc@2494 | 88 | "draining concurrent marking work queues.") \ |
johnc@2494 | 89 | \ |
johnc@2781 | 90 | experimental(bool, G1UseConcMarkReferenceProcessing, true, \ |
johnc@2718 | 91 | "If true, enable reference discovery during concurrent " \ |
johnc@2781 | 92 | "marking and reference processing at the end of remark.") \ |
ysr@777 | 93 | \ |
tonyp@1717 | 94 | product(intx, G1SATBBufferSize, 1*K, \ |
ysr@777 | 95 | "Number of entries in an SATB log buffer.") \ |
ysr@777 | 96 | \ |
tonyp@1717 | 97 | develop(intx, G1SATBProcessCompletedThreshold, 20, \ |
ysr@777 | 98 | "Number of completed buffers that triggers log processing.") \ |
ysr@777 | 99 | \ |
tonyp@2469 | 100 | product(uintx, G1SATBBufferEnqueueingThresholdPercent, 60, \ |
tonyp@2469 | 101 | "Before enqueueing them, each mutator thread tries to do some " \ |
tonyp@2469 | 102 | "filtering on the SATB buffers it generates. If post-filtering " \ |
tonyp@2469 | 103 | "the percentage of retained entries is over this threshold " \ |
tonyp@2469 | 104 | "the buffer will be enqueued for processing. A value of 0 " \ |
tonyp@2469 | 105 | "specifies that mutator threads should not do such filtering.") \ |
tonyp@2469 | 106 | \ |
ysr@777 | 107 | develop(intx, G1ExtraRegionSurvRate, 33, \ |
ysr@777 | 108 | "If the young survival rate is S, and there's room left in " \ |
ysr@777 | 109 | "to-space, we will allow regions whose survival rate is up to " \ |
ysr@777 | 110 | "S + (1 - S)*X, where X is this parameter (as a fraction.)") \ |
ysr@777 | 111 | \ |
ysr@777 | 112 | develop(intx, G1InitYoungSurvRatio, 50, \ |
ysr@777 | 113 | "Expected Survival Rate for newly allocated bytes") \ |
ysr@777 | 114 | \ |
ysr@777 | 115 | develop(bool, G1SATBPrintStubs, false, \ |
ysr@777 | 116 | "If true, print generated stubs for the SATB barrier") \ |
ysr@777 | 117 | \ |
tonyp@1717 | 118 | experimental(intx, G1ExpandByPercentOfAvailable, 20, \ |
ysr@777 | 119 | "When expanding, % of uncommitted space to claim.") \ |
ysr@777 | 120 | \ |
ysr@777 | 121 | develop(bool, G1RSBarrierRegionFilter, true, \ |
ysr@777 | 122 | "If true, generate region filtering code in RS barrier") \ |
ysr@777 | 123 | \ |
ysr@777 | 124 | develop(bool, G1RSBarrierNullFilter, true, \ |
ysr@777 | 125 | "If true, generate null-pointer filtering code in RS barrier") \ |
ysr@777 | 126 | \ |
iveresov@1051 | 127 | develop(bool, G1DeferredRSUpdate, true, \ |
iveresov@1051 | 128 | "If true, use deferred RS updates") \ |
iveresov@1051 | 129 | \ |
ysr@777 | 130 | develop(bool, G1RSLogCheckCardTable, false, \ |
ysr@777 | 131 | "If true, verify that no dirty cards remain after RS log " \ |
ysr@777 | 132 | "processing.") \ |
ysr@777 | 133 | \ |
ysr@777 | 134 | develop(bool, G1RSCountHisto, false, \ |
ysr@777 | 135 | "If true, print a histogram of RS occupancies after each pause") \ |
ysr@777 | 136 | \ |
tonyp@3121 | 137 | diagnostic(bool, G1PrintRegionLivenessInfo, false, \ |
tonyp@3121 | 138 | "Prints the liveness information for all regions in the heap " \ |
tonyp@3121 | 139 | "at the end of a marking cycle.") \ |
ysr@777 | 140 | \ |
ysr@777 | 141 | develop(bool, G1PrintParCleanupStats, false, \ |
ysr@777 | 142 | "When true, print extra stats about parallel cleanup.") \ |
ysr@777 | 143 | \ |
tonyp@1318 | 144 | product(intx, G1UpdateBufferSize, 256, \ |
tonyp@1318 | 145 | "Size of an update buffer") \ |
tonyp@1318 | 146 | \ |
tonyp@1717 | 147 | product(intx, G1ConcRefinementYellowZone, 0, \ |
tonyp@1318 | 148 | "Number of enqueued update buffers that will " \ |
iveresov@1546 | 149 | "trigger concurrent processing. Will be selected ergonomically " \ |
iveresov@1546 | 150 | "by default.") \ |
tonyp@1318 | 151 | \ |
tonyp@1717 | 152 | product(intx, G1ConcRefinementRedZone, 0, \ |
tonyp@1318 | 153 | "Maximum number of enqueued update buffers before mutator " \ |
iveresov@1546 | 154 | "threads start processing new ones instead of enqueueing them. " \ |
iveresov@1546 | 155 | "Will be selected ergonomically by default. Zero will disable " \ |
iveresov@1546 | 156 | "concurrent processing.") \ |
iveresov@1546 | 157 | \ |
tonyp@1717 | 158 | product(intx, G1ConcRefinementGreenZone, 0, \ |
iveresov@1546 | 159 | "The number of update buffers that are left in the queue by the " \ |
iveresov@1546 | 160 | "concurrent processing threads. Will be selected ergonomically " \ |
iveresov@1546 | 161 | "by default.") \ |
iveresov@1546 | 162 | \ |
tonyp@1717 | 163 | product(intx, G1ConcRefinementServiceIntervalMillis, 300, \ |
iveresov@1546 | 164 | "The last concurrent refinement thread wakes up every " \ |
iveresov@1546 | 165 | "specified number of milliseconds to do miscellaneous work.") \ |
iveresov@1546 | 166 | \ |
tonyp@1717 | 167 | product(intx, G1ConcRefinementThresholdStep, 0, \ |
iveresov@1546 | 168 | "Each time the rset update queue increases by this amount " \ |
iveresov@1546 | 169 | "activate the next refinement thread if available. " \ |
iveresov@1546 | 170 | "Will be selected ergonomically by default.") \ |
iveresov@1546 | 171 | \ |
tonyp@1717 | 172 | product(intx, G1RSetUpdatingPauseTimePercent, 10, \ |
iveresov@1546 | 173 | "A target percentage of time that is allowed to be spend on " \ |
iveresov@1546 | 174 | "process RS update buffers during the collection pause.") \ |
iveresov@1546 | 175 | \ |
tonyp@1717 | 176 | product(bool, G1UseAdaptiveConcRefinement, true, \ |
iveresov@1546 | 177 | "Select green, yellow and red zones adaptively to meet the " \ |
iveresov@1546 | 178 | "the pause requirements.") \ |
ysr@777 | 179 | \ |
ysr@777 | 180 | develop(intx, G1ConcRSLogCacheSize, 10, \ |
ysr@777 | 181 | "Log base 2 of the length of conc RS hot-card cache.") \ |
ysr@777 | 182 | \ |
johnc@1186 | 183 | develop(intx, G1ConcRSHotCardLimit, 4, \ |
ysr@777 | 184 | "The threshold that defines (>=) a hot card.") \ |
ysr@777 | 185 | \ |
johnc@2713 | 186 | develop(intx, G1MaxHotCardCountSizePercent, 25, \ |
johnc@2713 | 187 | "The maximum size of the hot card count cache as a " \ |
johnc@2713 | 188 | "percentage of the number of cards for the maximum heap.") \ |
johnc@2713 | 189 | \ |
ysr@777 | 190 | develop(bool, G1PrintOopAppls, false, \ |
ysr@777 | 191 | "When true, print applications of closures to external locs.") \ |
ysr@777 | 192 | \ |
iveresov@1696 | 193 | develop(intx, G1RSetRegionEntriesBase, 256, \ |
iveresov@1696 | 194 | "Max number of regions in a fine-grain table per MB.") \ |
iveresov@1696 | 195 | \ |
iveresov@1696 | 196 | product(intx, G1RSetRegionEntries, 0, \ |
iveresov@1696 | 197 | "Max number of regions for which we keep bitmaps." \ |
iveresov@1696 | 198 | "Will be set ergonomically by default") \ |
iveresov@1696 | 199 | \ |
iveresov@1696 | 200 | develop(intx, G1RSetSparseRegionEntriesBase, 4, \ |
iveresov@1696 | 201 | "Max number of entries per region in a sparse table " \ |
iveresov@1696 | 202 | "per MB.") \ |
iveresov@1696 | 203 | \ |
iveresov@1696 | 204 | product(intx, G1RSetSparseRegionEntries, 0, \ |
iveresov@1696 | 205 | "Max number of entries per region in a sparse table." \ |
iveresov@1696 | 206 | "Will be set ergonomically by default.") \ |
ysr@777 | 207 | \ |
ysr@777 | 208 | develop(bool, G1RecordHRRSOops, false, \ |
ysr@777 | 209 | "When true, record recent calls to rem set operations.") \ |
ysr@777 | 210 | \ |
ysr@777 | 211 | develop(bool, G1RecordHRRSEvents, false, \ |
ysr@777 | 212 | "When true, record recent calls to rem set operations.") \ |
ysr@777 | 213 | \ |
ysr@777 | 214 | develop(intx, G1MaxVerifyFailures, -1, \ |
ysr@777 | 215 | "The maximum number of verification failrues to print. " \ |
ysr@777 | 216 | "-1 means print all.") \ |
ysr@777 | 217 | \ |
ysr@777 | 218 | develop(bool, G1ScrubRemSets, true, \ |
ysr@777 | 219 | "When true, do RS scrubbing after cleanup.") \ |
ysr@777 | 220 | \ |
ysr@777 | 221 | develop(bool, G1RSScrubVerbose, false, \ |
ysr@777 | 222 | "When true, do RS scrubbing with verbose output.") \ |
ysr@777 | 223 | \ |
ysr@777 | 224 | develop(bool, G1YoungSurvRateVerbose, false, \ |
ysr@777 | 225 | "print out the survival rate of young regions according to age.") \ |
ysr@777 | 226 | \ |
ysr@777 | 227 | develop(intx, G1YoungSurvRateNumRegionsSummary, 0, \ |
ysr@777 | 228 | "the number of regions for which we'll print a surv rate " \ |
ysr@777 | 229 | "summary.") \ |
ysr@777 | 230 | \ |
tonyp@3119 | 231 | product(uintx, G1ReservePercent, 10, \ |
ysr@777 | 232 | "It determines the minimum reserve we should have in the heap " \ |
ysr@777 | 233 | "to minimize the probability of promotion failure.") \ |
ysr@777 | 234 | \ |
tonyp@1717 | 235 | diagnostic(bool, G1PrintHeapRegions, false, \ |
ysr@777 | 236 | "If set G1 will print information on which regions are being " \ |
ysr@777 | 237 | "allocated and which are reclaimed.") \ |
ysr@777 | 238 | \ |
ysr@777 | 239 | develop(bool, G1HRRSUseSparseTable, true, \ |
ysr@777 | 240 | "When true, use sparse table to save space.") \ |
ysr@777 | 241 | \ |
ysr@777 | 242 | develop(bool, G1HRRSFlushLogBuffersOnVerify, false, \ |
ysr@777 | 243 | "Forces flushing of log buffers before verification.") \ |
ysr@777 | 244 | \ |
ysr@1522 | 245 | develop(bool, G1FailOnFPError, false, \ |
ysr@1522 | 246 | "When set, G1 will fail when it encounters an FP 'error', " \ |
ysr@1522 | 247 | "so as to allow debugging") \ |
ysr@1522 | 248 | \ |
tonyp@1377 | 249 | product(uintx, G1HeapRegionSize, 0, \ |
tonyp@1377 | 250 | "Size of the G1 regions.") \ |
tonyp@1377 | 251 | \ |
tonyp@1792 | 252 | experimental(bool, G1UseParallelRSetUpdating, true, \ |
tonyp@1073 | 253 | "Enables the parallelization of remembered set updating " \ |
tonyp@1073 | 254 | "during evacuation pauses") \ |
tonyp@1073 | 255 | \ |
tonyp@1792 | 256 | experimental(bool, G1UseParallelRSetScanning, true, \ |
tonyp@1073 | 257 | "Enables the parallelization of remembered set scanning " \ |
iveresov@1229 | 258 | "during evacuation pauses") \ |
iveresov@1229 | 259 | \ |
tonyp@1717 | 260 | product(uintx, G1ConcRefinementThreads, 0, \ |
iveresov@1229 | 261 | "If non-0 is the number of parallel rem set update threads, " \ |
johnc@1325 | 262 | "otherwise the value is determined ergonomically.") \ |
johnc@1325 | 263 | \ |
johnc@1325 | 264 | develop(intx, G1CardCountCacheExpandThreshold, 16, \ |
johnc@1325 | 265 | "Expand the card count cache if the number of collisions for " \ |
apetrusenko@1375 | 266 | "a particular entry exceeds this value.") \ |
apetrusenko@1375 | 267 | \ |
apetrusenko@1375 | 268 | develop(bool, G1VerifyCTCleanup, false, \ |
ysr@1629 | 269 | "Verify card table cleanup.") \ |
ysr@1629 | 270 | \ |
iveresov@1696 | 271 | product(uintx, G1RSetScanBlockSize, 64, \ |
iveresov@1696 | 272 | "Size of a work unit of cards claimed by a worker thread" \ |
iveresov@1696 | 273 | "during RSet scanning.") \ |
iveresov@1696 | 274 | \ |
tonyp@2472 | 275 | develop(uintx, G1SecondaryFreeListAppendLength, 5, \ |
tonyp@2472 | 276 | "The number of regions we will add to the secondary free list " \ |
tonyp@2472 | 277 | "at every append operation") \ |
tonyp@2472 | 278 | \ |
tonyp@2472 | 279 | develop(bool, G1ConcRegionFreeingVerbose, false, \ |
tonyp@2472 | 280 | "Enables verboseness during concurrent region freeing") \ |
tonyp@2472 | 281 | \ |
tonyp@2472 | 282 | develop(bool, G1StressConcRegionFreeing, false, \ |
tonyp@2472 | 283 | "It stresses the concurrent region freeing operation") \ |
tonyp@2472 | 284 | \ |
tonyp@2472 | 285 | develop(uintx, G1StressConcRegionFreeingDelayMillis, 0, \ |
tonyp@2472 | 286 | "Artificial delay during concurrent region freeing") \ |
tonyp@2472 | 287 | \ |
tonyp@2817 | 288 | develop(uintx, G1DummyRegionsPerGC, 0, \ |
tonyp@2817 | 289 | "The number of dummy regions G1 will allocate at the end of " \ |
tonyp@2817 | 290 | "each evacuation pause in order to artificially fill up the " \ |
tonyp@2817 | 291 | "heap and stress the marking implementation.") \ |
tonyp@2817 | 292 | \ |
johnc@2504 | 293 | develop(bool, G1ExitOnExpansionFailure, false, \ |
johnc@2504 | 294 | "Raise a fatal VM exit out of memory failure in the event " \ |
tonyp@2848 | 295 | " that heap expansion fails due to running out of swap.") \ |
tonyp@2848 | 296 | \ |
tonyp@2848 | 297 | develop(uintx, G1ConcMarkForceOverflow, 0, \ |
tonyp@2848 | 298 | "The number of times we'll force an overflow during " \ |
tonyp@2848 | 299 | "concurrent marking") |
ysr@777 | 300 | |
ysr@785 | 301 | G1_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG, DECLARE_MANAGEABLE_FLAG, DECLARE_PRODUCT_RW_FLAG) |
stefank@2314 | 302 | |
stefank@2314 | 303 | #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1_GLOBALS_HPP |