Mercurial > hg > truffle

comparison src/share/vm/services/heapDumper.cpp @ 4076:2ceafe3ceb65

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
7110428: Crash during HeapDump operation Reviewed-by: ysr, dholmes
author poonam
date Wed, 16 Nov 2011 16:27:29 -0800
parents 167b70ff3abc
children d2a62e0f25eb
comparison
equal deleted inserted replaced
4075:aa4c21b00f7f 4076:2ceafe3ceb65
25 #include "precompiled.hpp" 25 #include "precompiled.hpp"
26 #include "classfile/symbolTable.hpp" 26 #include "classfile/symbolTable.hpp"
27 #include "classfile/systemDictionary.hpp" 27 #include "classfile/systemDictionary.hpp"
28 #include "classfile/vmSymbols.hpp" 28 #include "classfile/vmSymbols.hpp"
29 #include "gc_implementation/shared/vmGCOperations.hpp" 29 #include "gc_implementation/shared/vmGCOperations.hpp"
30 #include "memory/gcLocker.inline.hpp"
30 #include "memory/genCollectedHeap.hpp" 31 #include "memory/genCollectedHeap.hpp"
31 #include "memory/universe.hpp" 32 #include "memory/universe.hpp"
32 #include "oops/objArrayKlass.hpp" 33 #include "oops/objArrayKlass.hpp"
33 #include "runtime/javaCalls.hpp" 34 #include "runtime/javaCalls.hpp"
34 #include "runtime/jniHandles.hpp" 35 #include "runtime/jniHandles.hpp"
1707 1708
1708 void VM_HeapDumper::doit() { 1709 void VM_HeapDumper::doit() {
1709 1710
1710 HandleMark hm; 1711 HandleMark hm;
1711 CollectedHeap* ch = Universe::heap(); 1712 CollectedHeap* ch = Universe::heap();
1713
1714 ch->ensure_parsability(false); // must happen, even if collection does
1715 // not happen (e.g. due to GC_locker)
1716
1712 if (_gc_before_heap_dump) { 1717 if (_gc_before_heap_dump) {
1713 ch->collect_as_vm_thread(GCCause::_heap_dump); 1718 if (GC_locker::is_active()) {
1714 } else { 1719 warning("GC locker is held; pre-heapdump GC was skipped");
1715 // make the heap parsable (no need to retire TLABs) 1720 } else {
1716 ch->ensure_parsability(false); 1721 ch->collect_as_vm_thread(GCCause::_heap_dump);
1722 }
1717 } 1723 }
1718 1724
1719 // At this point we should be the only dumper active, so 1725 // At this point we should be the only dumper active, so
1720 // the following should be safe. 1726 // the following should be safe.
1721 set_global_dumper(); 1727 set_global_dumper();