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changeset 2049:bd2e08334e84

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7013718: G1: small fixes for two assert/guarantee failures Summary: Two small fixes to deal with a guarantee failure (the marking thread should join the SuspendibleThreadSet before calling a method that does pause prediction work so that said method is never called during a pause) and an assert failure (an assert is too strong). Reviewed-by: iveresov, johnc
author tonyp
date Fri, 21 Jan 2011 11:30:22 -0500
parents ec9e977dd8e4
children 4e66274b6bb3
files src/share/vm/gc_implementation/g1/concurrentMarkThread.cpp src/share/vm/gc_implementation/g1/heapRegionSeq.cpp
diffstat 2 files changed, 5 insertions(+), 3 deletions(-) [+]
line wrap: on
line diff
--- a/src/share/vm/gc_implementation/g1/concurrentMarkThread.cpp	Tue Feb 01 10:27:02 2011 -0800
+++ b/src/share/vm/gc_implementation/g1/concurrentMarkThread.cpp	Fri Jan 21 11:30:22 2011 -0500
@@ -251,7 +251,9 @@
 
         // Now do the remainder of the cleanup operation.
         _cm->completeCleanup();
+        _sts.join();
         g1_policy->record_concurrent_mark_cleanup_completed();
+        _sts.leave();
 
         double cleanup_end_sec = os::elapsedTime();
         if (PrintGC) {
--- a/src/share/vm/gc_implementation/g1/heapRegionSeq.cpp	Tue Feb 01 10:27:02 2011 -0800
+++ b/src/share/vm/gc_implementation/g1/heapRegionSeq.cpp	Fri Jan 21 11:30:22 2011 -0500
@@ -195,10 +195,10 @@
     assert(0 <= res && res < _regions.length(),
            err_msg("res: %d should be valid", res));
     _alloc_search_start = res + (int) num;
+    assert(0 < _alloc_search_start && _alloc_search_start <= _regions.length(),
+           err_msg("_alloc_search_start: %d should be valid",
+                   _alloc_search_start));
   }
-  assert(0 < _alloc_search_start && _alloc_search_start <= _regions.length(),
-         err_msg("_alloc_search_start: %d should be valid",
-                 _alloc_search_start));
   return res;
 }