src/share/vm/gc/shenandoah/shenandoahHeapRegion.cpp

*** 274,283 ****
--- 274,287 ----
      return last;
    }
  }
  
  void ShenandoahHeapRegion::setup_heap_region_size(size_t initial_heap_size, size_t max_heap_size) {
+   // Absolute minimums we should not ever break:
+   static const size_t MIN_REGION_SIZE = 256*K;
+   static const size_t MIN_NUM_REGIONS = 10;
+ 
    uintx region_size;
    if (FLAG_IS_DEFAULT(ShenandoahHeapRegionSize)) {
      if (ShenandoahMinRegionSize > initial_heap_size / MIN_NUM_REGIONS) {
        err_msg message("Initial heap size (" SIZE_FORMAT "K) is too low to afford the minimum number "
                        "of regions (" SIZE_FORMAT ") of minimum region size (" SIZE_FORMAT "K).",