hg: jdk8u/hs-dev/hotspot: 8050972: Concurrency problem in PcDesc cache

[vladimir.kozlov at oracle.com]

Changeset: 63e0c47ca943
Author:    mdoerr
Date:      2014-07-17 10:21 +0200
URL:       http://hg.openjdk.java.net/jdk8u/hs-dev/hotspot/rev/63e0c47ca943

8050972: Concurrency problem in PcDesc cache
Summary: The entries of the PcDesc cache in nmethods are not declared as volatile, but they are accessed and modified by several threads concurrently.
Reviewed-by: kvn, dholmes, dcubed

! src/share/vm/code/nmethod.hpp