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7119730: Tiered: SIGSEGV in AdvancedThresholdPolicy::is_method_profiled(methodOop)

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Added handles for references to methods in select_task()

Reviewed-by: twisti, kvn
This commit is contained in:
Igor Veresov 2011-12-12 12:44:08 -08:00
parent bb40d3f9f4
commit d447f02608
1 changed files with 6 additions and 7 deletions
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13
hotspot/src/share/vm/runtime/advancedThresholdPolicy.cpp
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@ -156,20 +156,19 @@ bool AdvancedThresholdPolicy::is_method_profiled(methodOop method) {
// Called with the queue locked and with at least one element
CompileTask* AdvancedThresholdPolicy::select_task(CompileQueue* compile_queue) {
CompileTask *max_task = NULL;
methodOop max_method;
methodHandle max_method;
jlong t = os::javaTimeMillis();
// Iterate through the queue and find a method with a maximum rate.
for (CompileTask* task = compile_queue->first(); task != NULL;) {
CompileTask* next_task = task->next();
methodOop method = (methodOop)JNIHandles::resolve(task->method_handle());
methodDataOop mdo = method->method_data();
update_rate(t, method);
methodHandle method = (methodOop)JNIHandles::resolve(task->method_handle());
update_rate(t, method());
if (max_task == NULL) {
max_task = task;
max_method = method;
} else {
// If a method has been stale for some time, remove it from the queue.
if (is_stale(t, TieredCompileTaskTimeout, method) && !is_old(method)) {
if (is_stale(t, TieredCompileTaskTimeout, method()) && !is_old(method())) {
if (PrintTieredEvents) {
print_event(REMOVE_FROM_QUEUE, method, method, task->osr_bci(), (CompLevel)task->comp_level());
}
@ -181,7 +180,7 @@ CompileTask* AdvancedThresholdPolicy::select_task(CompileQueue* compile_queue) {
}
// Select a method with a higher rate
if (compare_methods(method, max_method)) {
if (compare_methods(method(), max_method())) {
max_task = task;
max_method = method;
}
@ -190,7 +189,7 @@ CompileTask* AdvancedThresholdPolicy::select_task(CompileQueue* compile_queue) {
}
if (max_task->comp_level() == CompLevel_full_profile && TieredStopAtLevel > CompLevel_full_profile
&& is_method_profiled(max_method)) {
&& is_method_profiled(max_method())) {
max_task->set_comp_level(CompLevel_limited_profile);
if (PrintTieredEvents) {
print_event(UPDATE_IN_QUEUE, max_method, max_method, max_task->osr_bci(), (CompLevel)max_task->comp_level());