| Prepared by: | Goetz on Tue Mar 5 16:54:05 CET 2013 |
|---|---|
| Workspace: | /net/usr.work/d045726/oJ/8/main-hotspot-taskqueue_fence |
| Compare against: | http://hg.openjdk.java.net/hsx/hotspot-main/hotspot |
| Compare against version: | 4230 |
| Summary of changes: | 9 lines changed: 7 ins; 0 del; 2 mod; 770 unchg |
| Patch of changes: | main-hotspot-taskqueue_fence.patch |
| Bug id: | 8006971 |
| Legend: |
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src/share/vm/utilities/taskqueue.hpp
rev 4231 : Fix memory ordering in taskqueue for platforms with weak memory ordering (PPC). Add fence as described in "Correct and Efficient Work-Stealing for Weak Memory Models; Le, Pop, Cohen, Nardelli; PPoPP 13". With four or more GC threads bottom can be older than age in get_bottom().9 lines changed: 7 ins; 0 del; 2 mod; 770 unchg
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