From 0c88bead5af9b67e5f807c763378218465ead48b Mon Sep 17 00:00:00 2001
From: johnc <unknown>
Date: Wed, 19 Jan 2011 13:01:11 -0800
Subject: [PATCH] 7012642: G1: JumbleGC002 test aborts with segmentation
 violation due to uncaught stack overflow Summary: With recent G1 allocation
 path changes, the value of StackShadowPages in fast debug builds of the JVM,
 is no longer large enough to prevent the JVM C++ code from touching the stack
 guard pages. Increase the value of StackShadowPages to a suitable value.
 Reviewed-by: ysr, tonyp, coleenp

---
 src/cpu/x86/vm/globals_x86.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cpu/x86/vm/globals_x86.hpp b/src/cpu/x86/vm/globals_x86.hpp
index 41917378b..bdd705484 100644
--- a/src/cpu/x86/vm/globals_x86.hpp
+++ b/src/cpu/x86/vm/globals_x86.hpp
@@ -62,7 +62,7 @@ define_pd_global(intx, StackRedPages, 1);
 // due to lack of optimization caused by C++ compiler bugs
 define_pd_global(intx, StackShadowPages, SOLARIS_ONLY(20) NOT_SOLARIS(6) DEBUG_ONLY(+2));
 #else
-define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+1));
+define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+5));
 #endif // AMD64
 
 define_pd_global(intx, PreInflateSpin,           10);
-- 
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