Merge

hotspot/src/os/solaris/vm/os_solaris.cpp

@@ -756,15 +756,9 @@ extern "C" void* thread_native_entry(void* thread_addr) {
     }
   }
 
-  // If the creator called set priority before we started,
-  // we need to call set_native_priority now that we have an lwp.
-  // We used to get the priority from thr_getprio (we called
-  // thr_setprio way back in create_thread) and pass it to
-  // set_native_priority, but Solaris scales the priority
-  // in java_to_os_priority, so when we read it back here,
-  // we pass trash to set_native_priority instead of what's
-  // in java_to_os_priority. So we save the native priority
-  // in the osThread and recall it here.
+  // Our priority was set when we were created, and stored in the
+  // osthread, but couldn't be passed through to our LWP until now.
+  // So read back the priority and set it again.
 
   if (osthr->thread_id() != -1) {
     if (UseThreadPriorities) {
@@ -1044,6 +1038,10 @@ bool os::create_thread(Thread* thread, ThreadType thr_type,
   // Remember that we created this thread so we can set priority on it
   osthread->set_vm_created();
 
+  // Most thread types will set an explicit priority before starting the thread,
+  // but for those that don't we need a valid value to read back in thread_native_entry.
+  osthread->set_native_priority(NormPriority);
+
   // Initial thread state is INITIALIZED, not SUSPENDED
   osthread->set_state(INITIALIZED);
 

hotspot/src/share/vm/gc/cms/concurrentMarkSweepGeneration.cpp

@@ -545,6 +545,8 @@ CMSCollector::CMSCollector(ConcurrentMarkSweepGeneration* cmsGen,
   }
   assert((_conc_workers != NULL) == (ConcGCThreads > 1),
          "Inconsistency");
+  log_debug(gc)("ConcGCThreads: %u", ConcGCThreads);
+  log_debug(gc)("ParallelGCThreads: %u", ParallelGCThreads);
 
   // Parallel task queues; these are shared for the
   // concurrent and stop-world phases of CMS, but

hotspot/src/share/vm/gc/g1/g1ConcurrentMark.cpp

@@ -438,6 +438,8 @@ G1ConcurrentMark::G1ConcurrentMark(G1CollectedHeap* g1h, G1RegionToSpaceMapper*
   }
 
   assert(ConcGCThreads > 0, "Should have been set");
+  log_debug(gc)("ConcGCThreads: %u", ConcGCThreads);
+  log_debug(gc)("ParallelGCThreads: %u", ParallelGCThreads);
   _parallel_marking_threads = ConcGCThreads;
   _max_parallel_marking_threads = _parallel_marking_threads;
 

hotspot/src/share/vm/runtime/arguments.cpp

@@ -1641,7 +1641,6 @@ void Arguments::set_cms_and_parnew_gc_flags() {
   }
 
   log_trace(gc)("MarkStackSize: %uk  MarkStackSizeMax: %uk", (unsigned int) (MarkStackSize / K), (uint) (MarkStackSizeMax / K));
-  log_trace(gc)("ConcGCThreads: %u", ConcGCThreads);
 }
 #endif // INCLUDE_ALL_GCS
 
@@ -1949,7 +1948,6 @@ void Arguments::set_g1_gc_flags() {
   }
 
   log_trace(gc)("MarkStackSize: %uk  MarkStackSizeMax: %uk", (unsigned int) (MarkStackSize / K), (uint) (MarkStackSizeMax / K));
-  log_trace(gc)("ConcGCThreads: %u", ConcGCThreads);
 }
 
 void Arguments::set_gc_specific_flags() {