--- a/src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp	Fri Aug 23 14:22:29 2019 +0200
+++ b/src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp	Thu Sep 12 12:12:26 2019 +0200
@@ -598,6 +598,7 @@
     BLOCK_COMMENT("call MacroAssembler::debug");
     __ mov(rscratch1, CAST_FROM_FN_PTR(address, MacroAssembler::debug64));
     __ blr(rscratch1);
+    __ hlt(0);
 
     return start;
   }