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6968336: VM crash guarantee(!nm->is_zombie()) failed: cannot lock a zombie method

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Reviewed-by: twisti
This commit is contained in:
Tom Rodriguez 2010-07-15 08:54:48 -07:00
parent 2b339c9319
commit ea25541820
1 changed files with 3 additions and 4 deletions
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7
hotspot/src/share/vm/prims/jvmtiCodeBlobEvents.cpp
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@ -118,7 +118,6 @@ void CodeBlobCollector::do_blob(CodeBlob* cb) {
for (int i=0; i<_global_code_blobs->length(); i++) {
JvmtiCodeBlobDesc* scb = _global_code_blobs->at(i);
if (addr == scb->code_begin()) {
ShouldNotReachHere();
return;
}
}
@ -206,11 +205,11 @@ jvmtiError JvmtiCodeBlobEvents::generate_compiled_method_load_events(JvmtiEnv* e
MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
nmethod* current = CodeCache::first_nmethod();
while (current != NULL) {
// Lock the nmethod so it can't be freed
nmethodLocker nml(current);
// Only notify for live nmethods
if (current->is_alive()) {
// Lock the nmethod so it can't be freed
nmethodLocker nml(current);
// Don't hold the lock over the notify or jmethodID creation
MutexUnlockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
current->get_and_cache_jmethod_id();