--- a/hotspot/src/share/vm/runtime/arguments.cpp Fri Aug 13 07:33:20 2010 -0700
+++ b/hotspot/src/share/vm/runtime/arguments.cpp Thu Aug 19 14:23:59 2010 -0400
@@ -1559,6 +1559,18 @@
return false;
}
+bool Arguments::verify_min_value(intx val, intx min, const char* name) {
+ // Returns true if given value is greater than specified min threshold
+ // false, otherwise.
+ if (val >= min ) {
+ return true;
+ }
+ jio_fprintf(defaultStream::error_stream(),
+ "%s of " INTX_FORMAT " is invalid; must be greater than " INTX_FORMAT "\n",
+ name, val, min);
+ return false;
+}
+
bool Arguments::verify_percentage(uintx value, const char* name) {
if (value <= 100) {
return true;
@@ -1611,6 +1623,16 @@
return status;
}
+// Check stack pages settings
+bool Arguments::check_stack_pages()
+{
+ bool status = true;
+ status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages");
+ status = status && verify_min_value(StackRedPages, 1, "StackRedPages");
+ status = status && verify_min_value(StackShadowPages, 1, "StackShadowPages");
+ return status;
+}
+
// Check the consistency of vm_init_args
bool Arguments::check_vm_args_consistency() {
// Method for adding checks for flag consistency.
@@ -1723,6 +1745,7 @@
}
status = status && check_gc_consistency();
+ status = status && check_stack_pages();
if (_has_alloc_profile) {
if (UseParallelGC || UseParallelOldGC) {