Index: vm/thread/src/thread_native_fat_monitor.c =================================================================== --- vm/thread/src/thread_native_fat_monitor.c (revision 438091) +++ vm/thread/src/thread_native_fat_monitor.c (working copy) @@ -180,7 +180,7 @@ mon_ptr->wait_count++; saved_recursion = mon_ptr->recursion_count; - assert(saved_recursion<1); + assert(saved_recursion>=0); mon_ptr->owner = NULL; mon_ptr->recursion_count =0;