src/cpu/zero/vm/stack_zero.cpp

@  rev 7209 : Zero+PPC64: Stack overflow when running Maven
|

@@ -28,11 +28,13 @@
 #include "stack_zero.hpp"
 #include "stack_zero.inline.hpp"
 
 int ZeroStack::suggest_size(Thread *thread) const {
   assert(needs_setup(), "already set up");
-  return align_size_down(abi_stack_available(thread) / 2, wordSize);
+  int abi_available = abi_stack_available(thread);
+  assert(abi_available >= 0, "available abi stack must be >= 0");
+  return align_size_down(abi_available / 2, wordSize);
 }
 
 void ZeroStack::handle_overflow(TRAPS) {
   JavaThread *thread = (JavaThread *) THREAD;