hg: jdk7/hotspot-rt/hotspot: 6914050: jvm assertion "guard pages must be in use" in -Xcomp mode

[coleen.phillimore at sun.com]

Changeset: c8a467bf56ad
Author:    coleenp
Date:      2010-03-02 12:09 -0800
URL:       http://hg.openjdk.java.net/jdk7/hotspot-rt/hotspot/rev/c8a467bf56ad

6914050: jvm assertion "guard pages must be in use" in -Xcomp mode
Summary: Move creating stack guard pages in jni attach thread before potential java call rather than after. Also cleanup stack guard pages when jni attach fails
Reviewed-by: never, dholmes

! src/share/vm/prims/jni.cpp
! src/share/vm/runtime/thread.cpp