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7198529: NPG: assert with NMT code in Thread destructor

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Thread stack's base address can be NULL if it is not started or exited before recording the base

Reviewed-by: kvn, fparain
This commit is contained in:
Zhengyu Gu 2012-09-14 12:55:50 -04:00
parent 00c30b04f4
commit 119c20297b
1 changed files with 8 additions and 2 deletions
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10
hotspot/src/share/vm/runtime/thread.cpp
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@ -328,8 +328,14 @@ Thread::~Thread() {
// Reclaim the objectmonitors from the omFreeList of the moribund thread. // Reclaim the objectmonitors from the omFreeList of the moribund thread.
ObjectSynchronizer::omFlush (this) ; ObjectSynchronizer::omFlush (this) ;
address low_stack_addr = stack_base() - stack_size(); // stack_base can be NULL if the thread is never started or exited before
MemTracker::release_thread_stack(low_stack_addr, stack_size(), this); // record_stack_base_and_size called. Although, we would like to ensure
// that all started threads do call record_stack_base_and_size(), there is
// not proper way to enforce that.
if (_stack_base != NULL) {
address low_stack_addr = stack_base() - stack_size();
MemTracker::release_thread_stack(low_stack_addr, stack_size(), this);
}
// deallocate data structures // deallocate data structures
delete resource_area(); delete resource_area();