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7012642: G1: JumbleGC002 test aborts with segmentation violation due to uncaught stack overflow

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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
This commit is contained in:
John Cuthbertson 2011-01-19 13:01:11 -08:00
parent a484211e0b
commit 2ad5e5ace5
1 changed files with 1 additions and 1 deletions
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2
hotspot/src/cpu/x86/vm/globals_x86.hpp
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@ -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);