Mercurial > hg > truffle
annotate src/share/vm/runtime/mutexLocker.cpp @ 2195:bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
Summary: Defer posting events from the compiler thread: use service thread
Reviewed-by: coleenp, dholmes, never, dcubed
| author | kamg |
|---|---|
| date | Wed, 02 Feb 2011 14:38:01 -0500 |
| parents | 0fa27f37d4d4 |
| children | f08d439fab8c |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2152 | 2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "runtime/mutexLocker.hpp" | |
| 27 #include "runtime/safepoint.hpp" | |
| 28 #include "runtime/threadLocalStorage.hpp" | |
| 29 #include "runtime/vmThread.hpp" | |
| 30 #ifdef TARGET_OS_FAMILY_linux | |
| 31 # include "thread_linux.inline.hpp" | |
| 32 #endif | |
| 33 #ifdef TARGET_OS_FAMILY_solaris | |
| 34 # include "thread_solaris.inline.hpp" | |
| 35 #endif | |
| 36 #ifdef TARGET_OS_FAMILY_windows | |
| 37 # include "thread_windows.inline.hpp" | |
| 38 #endif | |
| 0 | 39 |
| 40 // Mutexes used in the VM (see comment in mutexLocker.hpp): | |
| 41 // | |
| 42 // Note that the following pointers are effectively final -- after having been | |
| 43 // set at JVM startup-time, they should never be subsequently mutated. | |
| 44 // Instead of using pointers to malloc()ed monitors and mutexes we should consider | |
| 45 // eliminating the indirection and using instances instead. | |
| 46 // Consider using GCC's __read_mostly. | |
| 47 | |
| 48 Mutex* Patching_lock = NULL; | |
| 49 Monitor* SystemDictionary_lock = NULL; | |
| 50 Mutex* PackageTable_lock = NULL; | |
| 51 Mutex* CompiledIC_lock = NULL; | |
| 52 Mutex* InlineCacheBuffer_lock = NULL; | |
| 53 Mutex* VMStatistic_lock = NULL; | |
| 54 Mutex* JNIGlobalHandle_lock = NULL; | |
| 55 Mutex* JNIHandleBlockFreeList_lock = NULL; | |
| 56 Mutex* JNICachedItableIndex_lock = NULL; | |
| 57 Mutex* JmethodIdCreation_lock = NULL; | |
| 58 Mutex* JfieldIdCreation_lock = NULL; | |
| 59 Monitor* JNICritical_lock = NULL; | |
| 60 Mutex* JvmtiThreadState_lock = NULL; | |
| 61 Monitor* JvmtiPendingEvent_lock = NULL; | |
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62 Monitor* Heap_lock = NULL; |
| 0 | 63 Mutex* ExpandHeap_lock = NULL; |
| 64 Mutex* AdapterHandlerLibrary_lock = NULL; | |
| 65 Mutex* SignatureHandlerLibrary_lock = NULL; | |
| 66 Mutex* VtableStubs_lock = NULL; | |
| 67 Mutex* SymbolTable_lock = NULL; | |
| 68 Mutex* StringTable_lock = NULL; | |
| 69 Mutex* CodeCache_lock = NULL; | |
| 70 Mutex* MethodData_lock = NULL; | |
| 71 Mutex* RetData_lock = NULL; | |
| 72 Monitor* VMOperationQueue_lock = NULL; | |
| 73 Monitor* VMOperationRequest_lock = NULL; | |
| 74 Monitor* Safepoint_lock = NULL; | |
| 75 Monitor* SerializePage_lock = NULL; | |
| 76 Monitor* Threads_lock = NULL; | |
| 77 Monitor* CGC_lock = NULL; | |
| 78 Mutex* STS_init_lock = NULL; | |
| 79 Monitor* SLT_lock = NULL; | |
| 80 Monitor* iCMS_lock = NULL; | |
| 81 Monitor* FullGCCount_lock = NULL; | |
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82 Monitor* CMark_lock = NULL; |
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83 Mutex* CMRegionStack_lock = NULL; |
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84 Mutex* SATB_Q_FL_lock = NULL; |
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85 Monitor* SATB_Q_CBL_mon = NULL; |
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86 Mutex* Shared_SATB_Q_lock = NULL; |
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87 Mutex* DirtyCardQ_FL_lock = NULL; |
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88 Monitor* DirtyCardQ_CBL_mon = NULL; |
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89 Mutex* Shared_DirtyCardQ_lock = NULL; |
| 0 | 90 Mutex* ParGCRareEvent_lock = NULL; |
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91 Mutex* EvacFailureStack_lock = NULL; |
| 0 | 92 Mutex* DerivedPointerTableGC_lock = NULL; |
| 93 Mutex* Compile_lock = NULL; | |
| 94 Monitor* MethodCompileQueue_lock = NULL; | |
| 95 Monitor* CompileThread_lock = NULL; | |
| 96 Mutex* CompileTaskAlloc_lock = NULL; | |
| 97 Mutex* CompileStatistics_lock = NULL; | |
| 98 Mutex* MultiArray_lock = NULL; | |
| 99 Monitor* Terminator_lock = NULL; | |
| 100 Monitor* BeforeExit_lock = NULL; | |
| 101 Monitor* Notify_lock = NULL; | |
| 102 Monitor* Interrupt_lock = NULL; | |
| 103 Monitor* ProfileVM_lock = NULL; | |
| 104 Mutex* ProfilePrint_lock = NULL; | |
| 105 Mutex* ExceptionCache_lock = NULL; | |
| 106 Monitor* ObjAllocPost_lock = NULL; | |
| 107 Mutex* OsrList_lock = NULL; | |
| 108 #ifndef PRODUCT | |
| 109 Mutex* FullGCALot_lock = NULL; | |
| 110 #endif | |
| 111 | |
| 112 Mutex* Debug1_lock = NULL; | |
| 113 Mutex* Debug2_lock = NULL; | |
| 114 Mutex* Debug3_lock = NULL; | |
| 115 | |
| 116 Mutex* tty_lock = NULL; | |
| 117 | |
| 118 Mutex* RawMonitor_lock = NULL; | |
| 119 Mutex* PerfDataMemAlloc_lock = NULL; | |
| 120 Mutex* PerfDataManager_lock = NULL; | |
| 121 Mutex* OopMapCacheAlloc_lock = NULL; | |
| 122 | |
| 2152 | 123 Mutex* FreeList_lock = NULL; |
| 124 Monitor* SecondaryFreeList_lock = NULL; | |
| 125 Mutex* OldSets_lock = NULL; | |
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126 Mutex* MMUTracker_lock = NULL; |
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127 Mutex* HotCardCache_lock = NULL; |
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128 |
| 0 | 129 Monitor* GCTaskManager_lock = NULL; |
| 130 | |
| 131 Mutex* Management_lock = NULL; | |
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132 Monitor* Service_lock = NULL; |
| 0 | 133 |
| 134 #define MAX_NUM_MUTEX 128 | |
| 135 static Monitor * _mutex_array[MAX_NUM_MUTEX]; | |
| 136 static int _num_mutex; | |
| 137 | |
| 138 #ifdef ASSERT | |
| 139 void assert_locked_or_safepoint(const Monitor * lock) { | |
| 140 // check if this thread owns the lock (common case) | |
| 141 if (IgnoreLockingAssertions) return; | |
| 142 assert(lock != NULL, "Need non-NULL lock"); | |
| 143 if (lock->owned_by_self()) return; | |
| 144 if (SafepointSynchronize::is_at_safepoint()) return; | |
| 145 if (!Universe::is_fully_initialized()) return; | |
| 146 // see if invoker of VM operation owns it | |
| 147 VM_Operation* op = VMThread::vm_operation(); | |
| 148 if (op != NULL && op->calling_thread() == lock->owner()) return; | |
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149 fatal(err_msg("must own lock %s", lock->name())); |
| 0 | 150 } |
| 151 | |
| 152 // a stronger assertion than the above | |
| 153 void assert_lock_strong(const Monitor * lock) { | |
| 154 if (IgnoreLockingAssertions) return; | |
| 155 assert(lock != NULL, "Need non-NULL lock"); | |
| 156 if (lock->owned_by_self()) return; | |
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157 fatal(err_msg("must own lock %s", lock->name())); |
| 0 | 158 } |
| 159 #endif | |
| 160 | |
| 161 #define def(var, type, pri, vm_block) { \ | |
| 162 var = new type(Mutex::pri, #var, vm_block); \ | |
| 163 assert(_num_mutex < MAX_NUM_MUTEX, \ | |
| 164 "increase MAX_NUM_MUTEX"); \ | |
| 165 _mutex_array[_num_mutex++] = var; \ | |
| 166 } | |
| 167 | |
| 168 void mutex_init() { | |
| 169 def(tty_lock , Mutex , event, true ); // allow to lock in VM | |
| 170 | |
| 171 def(CGC_lock , Monitor, special, true ); // coordinate between fore- and background GC | |
| 172 def(STS_init_lock , Mutex, leaf, true ); | |
| 173 if (UseConcMarkSweepGC) { | |
| 174 def(iCMS_lock , Monitor, special, true ); // CMS incremental mode start/stop notification | |
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175 } |
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176 if (UseConcMarkSweepGC || UseG1GC) { |
| 0 | 177 def(FullGCCount_lock , Monitor, leaf, true ); // in support of ExplicitGCInvokesConcurrent |
| 178 } | |
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179 if (UseG1GC) { |
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180 def(CMark_lock , Monitor, nonleaf, true ); // coordinate concurrent mark thread |
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181 def(CMRegionStack_lock , Mutex, leaf, true ); |
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182 def(SATB_Q_FL_lock , Mutex , special, true ); |
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183 def(SATB_Q_CBL_mon , Monitor, nonleaf, true ); |
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184 def(Shared_SATB_Q_lock , Mutex, nonleaf, true ); |
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185 |
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186 def(DirtyCardQ_FL_lock , Mutex , special, true ); |
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187 def(DirtyCardQ_CBL_mon , Monitor, nonleaf, true ); |
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188 def(Shared_DirtyCardQ_lock , Mutex, nonleaf, true ); |
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189 |
| 2152 | 190 def(FreeList_lock , Mutex, leaf , true ); |
| 191 def(SecondaryFreeList_lock , Monitor, leaf , true ); | |
| 192 def(OldSets_lock , Mutex , leaf , true ); | |
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193 def(MMUTracker_lock , Mutex , leaf , true ); |
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194 def(HotCardCache_lock , Mutex , special , true ); |
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195 def(EvacFailureStack_lock , Mutex , nonleaf , true ); |
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196 } |
| 0 | 197 def(ParGCRareEvent_lock , Mutex , leaf , true ); |
| 198 def(DerivedPointerTableGC_lock , Mutex, leaf, true ); | |
| 199 def(CodeCache_lock , Mutex , special, true ); | |
| 200 def(Interrupt_lock , Monitor, special, true ); // used for interrupt processing | |
| 201 def(RawMonitor_lock , Mutex, special, true ); | |
| 202 def(OopMapCacheAlloc_lock , Mutex, leaf, true ); // used for oop_map_cache allocation. | |
| 203 | |
| 204 def(Patching_lock , Mutex , special, true ); // used for safepointing and code patching. | |
| 205 def(ObjAllocPost_lock , Monitor, special, false); | |
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206 def(Service_lock , Monitor, special, true ); // used for service thread operations |
| 0 | 207 def(JmethodIdCreation_lock , Mutex , leaf, true ); // used for creating jmethodIDs. |
| 208 | |
| 209 def(SystemDictionary_lock , Monitor, leaf, true ); // lookups done by VM thread | |
| 210 def(PackageTable_lock , Mutex , leaf, false); | |
| 211 def(InlineCacheBuffer_lock , Mutex , leaf, true ); | |
| 212 def(VMStatistic_lock , Mutex , leaf, false); | |
| 213 def(ExpandHeap_lock , Mutex , leaf, true ); // Used during compilation by VM thread | |
| 214 def(JNIHandleBlockFreeList_lock , Mutex , leaf, true ); // handles are used by VM thread | |
| 215 def(SignatureHandlerLibrary_lock , Mutex , leaf, false); | |
| 216 def(SymbolTable_lock , Mutex , leaf, true ); | |
| 217 def(StringTable_lock , Mutex , leaf, true ); | |
| 218 def(ProfilePrint_lock , Mutex , leaf, false); // serial profile printing | |
| 219 def(ExceptionCache_lock , Mutex , leaf, false); // serial profile printing | |
| 220 def(OsrList_lock , Mutex , leaf, true ); | |
| 221 def(Debug1_lock , Mutex , leaf, true ); | |
| 222 #ifndef PRODUCT | |
| 223 def(FullGCALot_lock , Mutex , leaf, false); // a lock to make FullGCALot MT safe | |
| 224 #endif | |
| 225 def(BeforeExit_lock , Monitor, leaf, true ); | |
| 226 def(PerfDataMemAlloc_lock , Mutex , leaf, true ); // used for allocating PerfData memory for performance data | |
| 227 def(PerfDataManager_lock , Mutex , leaf, true ); // used for synchronized access to PerfDataManager resources | |
| 228 | |
| 229 // CMS_modUnionTable_lock leaf | |
| 230 // CMS_bitMap_lock leaf + 1 | |
| 231 // CMS_freeList_lock leaf + 2 | |
| 232 | |
| 233 def(Safepoint_lock , Monitor, safepoint, true ); // locks SnippetCache_lock/Threads_lock | |
| 234 | |
| 235 def(Threads_lock , Monitor, barrier, true ); | |
| 236 | |
| 237 def(VMOperationQueue_lock , Monitor, nonleaf, true ); // VM_thread allowed to block on these | |
| 238 def(VMOperationRequest_lock , Monitor, nonleaf, true ); | |
| 239 def(RetData_lock , Mutex , nonleaf, false); | |
| 240 def(Terminator_lock , Monitor, nonleaf, true ); | |
| 241 def(VtableStubs_lock , Mutex , nonleaf, true ); | |
| 242 def(Notify_lock , Monitor, nonleaf, true ); | |
| 243 def(JNIGlobalHandle_lock , Mutex , nonleaf, true ); // locks JNIHandleBlockFreeList_lock | |
| 244 def(JNICritical_lock , Monitor, nonleaf, true ); // used for JNI critical regions | |
| 245 def(AdapterHandlerLibrary_lock , Mutex , nonleaf, true); | |
| 246 if (UseConcMarkSweepGC) { | |
| 247 def(SLT_lock , Monitor, nonleaf, false ); | |
| 248 // used in CMS GC for locking PLL lock | |
| 249 } | |
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250 def(Heap_lock , Monitor, nonleaf+1, false); |
| 0 | 251 def(JfieldIdCreation_lock , Mutex , nonleaf+1, true ); // jfieldID, Used in VM_Operation |
| 252 def(JNICachedItableIndex_lock , Mutex , nonleaf+1, false); // Used to cache an itable index during JNI invoke | |
| 253 | |
| 254 def(CompiledIC_lock , Mutex , nonleaf+2, false); // locks VtableStubs_lock, InlineCacheBuffer_lock | |
| 255 def(CompileTaskAlloc_lock , Mutex , nonleaf+2, true ); | |
| 256 def(CompileStatistics_lock , Mutex , nonleaf+2, false); | |
| 257 def(MultiArray_lock , Mutex , nonleaf+2, false); // locks SymbolTable_lock | |
| 258 | |
| 259 def(JvmtiThreadState_lock , Mutex , nonleaf+2, false); // Used by JvmtiThreadState/JvmtiEventController | |
| 260 def(JvmtiPendingEvent_lock , Monitor, nonleaf, false); // Used by JvmtiCodeBlobEvents | |
| 261 def(Management_lock , Mutex , nonleaf+2, false); // used for JVM management | |
| 262 | |
| 263 def(Compile_lock , Mutex , nonleaf+3, true ); | |
| 264 def(MethodData_lock , Mutex , nonleaf+3, false); | |
| 265 | |
| 266 def(MethodCompileQueue_lock , Monitor, nonleaf+4, true ); | |
| 267 def(Debug2_lock , Mutex , nonleaf+4, true ); | |
| 268 def(Debug3_lock , Mutex , nonleaf+4, true ); | |
| 269 def(ProfileVM_lock , Monitor, nonleaf+4, false); // used for profiling of the VMThread | |
| 270 def(CompileThread_lock , Monitor, nonleaf+5, false ); | |
| 271 } | |
| 272 | |
| 273 GCMutexLocker::GCMutexLocker(Monitor * mutex) { | |
| 274 if (SafepointSynchronize::is_at_safepoint()) { | |
| 275 _locked = false; | |
| 276 } else { | |
| 277 _mutex = mutex; | |
| 278 _locked = true; | |
| 279 _mutex->lock(); | |
| 280 } | |
| 281 } | |
| 282 | |
| 283 // Print all mutexes/monitors that are currently owned by a thread; called | |
| 284 // by fatal error handler. | |
| 285 void print_owned_locks_on_error(outputStream* st) { | |
| 286 st->print("VM Mutex/Monitor currently owned by a thread: "); | |
| 287 bool none = true; | |
| 288 for (int i = 0; i < _num_mutex; i++) { | |
| 289 // see if it has an owner | |
| 290 if (_mutex_array[i]->owner() != NULL) { | |
| 291 if (none) { | |
| 292 // print format used by Mutex::print_on_error() | |
| 293 st->print_cr(" ([mutex/lock_event])"); | |
| 294 none = false; | |
| 295 } | |
| 296 _mutex_array[i]->print_on_error(st); | |
| 297 st->cr(); | |
| 298 } | |
| 299 } | |
| 300 if (none) st->print_cr("None"); | |
| 301 } |