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Bug Database
Bug ID: 6824570
Votes 0
Synopsis ParNew: Fix memory leak introduced in 6819891
Category hotspot:garbage_collector
Reported Against
Release Fixed hs14(b14), 6u14(b05) (Bug ID:2175490) , hs15(b05) (Bug ID:2175491) , 7(b54) (Bug ID:2175668)
State 10-Fix Delivered, bug
Priority: 1-Very High
Related Bugs 6819891
Submit Date 31-MAR-2009
Description
The fix for 6819891 inadvertently introduced a memory leak, in
the C-heap, of the order of 2KB*ParallelGCThreads per scavenge.
Over a period of time such a leak can run the JVM out of C-heap
memory and lead to availability issues in the field.

This bug should be fixed in hs14 where it was first introduced.
The bug affects the 64-bit compressed oops jvm using the ParNew
(or CMS) collector.
Posted Date : 2009-03-31 23:41:35.0
Work Around
-XX:-UseParNewGC 

or

-XX:-UseCompressedOops
Evaluation
<ouch!>
Posted Date : 2009-03-31 23:43:41.0

http://hg.openjdk.java.net/jdk7/hotspot-gc/hotspot/rev/becb17ad5e51
Posted Date : 2009-04-03 04:13:25.0

http://hg.openjdk.java.net/jdk7/hotspot/hotspot/rev/becb17ad5e51
Posted Date : 2009-04-04 03:08:51.0
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