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Jon Masamitsu 2014-06-18 12:39:57 -07:00
commit ad2e593b80
11 changed files with 49 additions and 43 deletions
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10
hotspot/src/share/vm/runtime/thread.cpp
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@ -3933,14 +3933,8 @@ bool Threads::destroy_vm() {
// GC vm_operations can get caught at the safepoint, and the
// heap is unparseable if they are caught. Grab the Heap_lock
// to prevent this. The GC vm_operations will not be able to
// queue until after the vm thread is dead.
// After this point, we'll never emerge out of the safepoint before
// the VM exits, so concurrent GC threads do not need to be explicitly
// stopped; they remain inactive until the process exits.
// Note: some concurrent G1 threads may be running during a safepoint,
// but these will not be accessing the heap, just some G1-specific side
// data structures that are not accessed by any other threads but them
// after this point in a terminal safepoint.
// queue until after the vm thread is dead. After this point,
// we'll never emerge out of the safepoint before the VM exits.
MutexLocker ml(Heap_lock);