hg: jdk7/hotspot-gc/hotspot: 6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM

[y.s.ramakrishna at sun.com]

Changeset: 821269eca479
Author:    ysr
Date:      2009-06-11 12:40 -0700
URL:       http://hg.openjdk.java.net/jdk7/hotspot-gc/hotspot/rev/821269eca479

6820167: GCALotAtAllSafepoints + FullGCALot(ScavengeALot) options crash JVM
Summary: Short-circuit gc-a-lot attempts by non-JavaThreads; SkipGCALot c'tor to elide re-entrant gc-a-lot attempts.
Reviewed-by: apetrusenko, jcoomes, jmasa, kamg

! src/share/vm/memory/gcLocker.hpp
! src/share/vm/runtime/interfaceSupport.cpp
! src/share/vm/runtime/thread.cpp
! src/share/vm/runtime/thread.hpp
! src/share/vm/runtime/vmThread.cpp