1.1 --- a/src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp Tue Apr 26 11:46:34 2011 -0700
1.2 +++ b/src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp Tue Apr 26 21:17:24 2011 -0700
1.3 @@ -1963,10 +1963,21 @@
1.4 // Iteration support, mostly delegated from a CMS generation
1.5
1.6 void CompactibleFreeListSpace::save_marks() {
1.7 - // mark the "end" of the used space at the time of this call;
1.8 + assert(Thread::current()->is_VM_thread(),
1.9 + "Global variable should only be set when single-threaded");
1.10 + // Mark the "end" of the used space at the time of this call;
1.11 // note, however, that promoted objects from this point
1.12 // on are tracked in the _promoInfo below.
1.13 set_saved_mark_word(unallocated_block());
1.14 +#ifdef ASSERT
1.15 + // Check the sanity of save_marks() etc.
1.16 + MemRegion ur = used_region();
1.17 + MemRegion urasm = used_region_at_save_marks();
1.18 + assert(ur.contains(urasm),
1.19 + err_msg(" Error at save_marks(): [" PTR_FORMAT "," PTR_FORMAT ")"
1.20 + " should contain [" PTR_FORMAT "," PTR_FORMAT ")",
1.21 + ur.start(), ur.end(), urasm.start(), urasm.end()));
1.22 +#endif
1.23 // inform allocator that promotions should be tracked.
1.24 assert(_promoInfo.noPromotions(), "_promoInfo inconsistency");
1.25 _promoInfo.startTrackingPromotions();
