8271406: Kitchensink failed with "assert(early->flag() == current->flag()) failed: Should be the same"

Reviewed-by: coleenp, dholmes, stuefe

Author: zhengyu123

src/hotspot/share/services/memReporter.cpp

@@ -793,7 +793,8 @@ void MemDetailDiffReporter::old_virtual_memory_site(const VirtualMemoryAllocatio
 
 void MemDetailDiffReporter::diff_virtual_memory_site(const VirtualMemoryAllocationSite* early,
   const VirtualMemoryAllocationSite* current) const {
-  assert(early->flag() == current->flag(), "Should be the same");
+  assert(early->flag() == current->flag() || early->flag() == mtNone,
+    "Expect the same flag, but %s != %s", NMTUtil::flag_to_name(early->flag()),NMTUtil::flag_to_name(current->flag()));
   diff_virtual_memory_site(current->call_stack(), current->reserved(), current->committed(),
     early->reserved(), early->committed(), current->flag());
 }